2:39 a.m.
diff from v2:
============
1. Fix style issues.
2. Rework patch for fetching job info
(save logic to use temporary variable when drop vm lock)
3. Update disk stats when block jobs are canceled.
4. Adress a few more corner cases.
This patch series add disks stats to domain job info(stats) as
well as to migration completed event in case nbd scheme is used.
There is little nuisance with qcow2 disks (which is the main scenario
I guess) tied to the way qemu reports stats for this type of disks.
For example if we have 64G disk filled only to 1G then stats
start from 63G and will grow up to 64G on completion. The same way disk stats
will be reported by this patch.
I guess the better way to express the situation is to say we have 64G 'total',
and have 'processed' field grow from 0G to 1G, like in case of memory
stats. [1] is the example of completed memory stats of empty guest
domain, which show difference between processed and total.
There can be a workaround like getting initial blockjob offset position
as a zero but is is rather ugly and racy and like uses undocumented
behaviour.
[1] memory migration stats example
Memory processed: 3.307 MiB
Memory remaining: 0.000 B
Memory total: 1.032 GiB
The above is applied to qemu 2.6 at least.
Patches that were explicitly ACKed in previous review
(up to style issues) marked with A.
Nikolay Shirokovskiy (16):
qemu: drop code for VIR_DOMAIN_JOB_BOUNDED and timeRemaining
A qemu: introduce qemu domain job status
A qemu: introduce QEMU_DOMAIN_JOB_STATUS_POSTCOPY
A qemu: drop QEMU_MIGRATION_COMPLETED_UPDATE_STATS
A qemu: drop excessive zero-out in qemuMigrationFetchJobStatus
qemu: refactor fetching migration stats
A qemu: simplify getting completed job stats
qemu: fail querying destination migration statistics always
qemu: start all async job with job status active
qemu: introduce migrating job status
qemu: always get job condition on getting job stats
qemu: migrate: show disks stats on job info requests
qemu: support getting disks stats during stopping block jobs
qemu: migation: resolve race on getting job info and stopping block jobs
qemu: migrate: copy disks stats to completed job
qemu: migration: don't expose incomplete job as complete
src/qemu/qemu_blockjob.c | 1 +
src/qemu/qemu_domain.c | 38 +++++--
src/qemu/qemu_domain.h | 16 ++-
src/qemu/qemu_driver.c | 95 ++++++++--------
src/qemu/qemu_migration.c | 236 ++++++++++++++++++++++++++-------------
src/qemu/qemu_migration.h | 15 ++-
src/qemu/qemu_migration_cookie.c | 7 +-
src/qemu/qemu_monitor.c | 5 +-
src/qemu/qemu_monitor.h | 4 +-
src/qemu/qemu_monitor_json.c | 4 +-
src/qemu/qemu_process.c | 10 +-
tests/qemumonitorjsontest.c | 1 +
12 files changed, 273 insertions(+), 159 deletions(-)
--
1.8.3.1
2:39 a.m.
New subject: [libvirt] [PATCH v3 01/16] qemu: drop code for VIR_DOMAIN_JOB_BOUNDED and timeRemaining
qemu driver does not have VIR_DOMAIN_JOB_BOUNDED jobs and
timeRemaining is always 0.
---
src/qemu/qemu_domain.c | 7 -------
src/qemu/qemu_domain.h | 1 -
src/qemu/qemu_migration_cookie.c | 5 -----
3 files changed, 13 deletions(-)
diff --git a/src/qemu/qemu_domain.c b/src/qemu/qemu_domain.c
index 39bc8c7..54d9425 100644
--- a/src/qemu/qemu_domain.c
+++ b/src/qemu/qemu_domain.c
@@ -408,7 +408,6 @@ qemuDomainJobInfoToInfo(qemuDomainJobInfoPtr jobInfo,
{
info->type = jobInfo->type;
info->timeElapsed = jobInfo->timeElapsed;
- info->timeRemaining = jobInfo->timeRemaining;
info->memTotal = jobInfo->stats.ram_total;
info->memRemaining = jobInfo->stats.ram_remaining;
@@ -448,12 +447,6 @@ qemuDomainJobInfoToParams(qemuDomainJobInfoPtr jobInfo,
jobInfo->timeElapsed - jobInfo->timeDelta) < 0)
goto error;
- if (jobInfo->type == VIR_DOMAIN_JOB_BOUNDED &&
- virTypedParamsAddULLong(&par, &npar, &maxpar,
- VIR_DOMAIN_JOB_TIME_REMAINING,
- jobInfo->timeRemaining) < 0)
- goto error;
-
if (stats->downtime_set &&
virTypedParamsAddULLong(&par, &npar, &maxpar,
VIR_DOMAIN_JOB_DOWNTIME,
diff --git a/src/qemu/qemu_domain.h b/src/qemu/qemu_domain.h
index caac5d5..caf1ebe 100644
--- a/src/qemu/qemu_domain.h
+++ b/src/qemu/qemu_domain.h
@@ -111,7 +111,6 @@ struct _qemuDomainJobInfo {
info from the source (migrations only). */
/* Computed values */
unsigned long long timeElapsed;
- unsigned long long timeRemaining;
long long timeDelta; /* delta = received - sent, i.e., the difference
between the source and the destination time plus
the time between the end of Perform phase on the
diff --git a/src/qemu/qemu_migration_cookie.c b/src/qemu/qemu_migration_cookie.c
index bd12f11..ae56569 100644
--- a/src/qemu/qemu_migration_cookie.c
+++ b/src/qemu/qemu_migration_cookie.c
@@ -594,9 +594,6 @@ qemuMigrationCookieStatisticsXMLFormat(virBufferPtr buf,
virBufferAsprintf(buf, "<%1$s>%2$llu</%1$s>\n",
VIR_DOMAIN_JOB_TIME_ELAPSED,
jobInfo->timeElapsed);
- virBufferAsprintf(buf, "<%1$s>%2$llu</%1$s>\n",
- VIR_DOMAIN_JOB_TIME_REMAINING,
- jobInfo->timeRemaining);
if (stats->downtime_set)
virBufferAsprintf(buf, "<%1$s>%2$llu</%1$s>\n",
VIR_DOMAIN_JOB_DOWNTIME,
@@ -966,8 +963,6 @@ qemuMigrationCookieStatisticsXMLParse(xmlXPathContextPtr ctxt)
virXPathULongLong("string(./" VIR_DOMAIN_JOB_TIME_ELAPSED
"[1])",
ctxt, &jobInfo->timeElapsed);
- virXPathULongLong("string(./" VIR_DOMAIN_JOB_TIME_REMAINING
"[1])",
- ctxt, &jobInfo->timeRemaining);
if (virXPathULongLong("string(./" VIR_DOMAIN_JOB_DOWNTIME
"[1])",
ctxt, &stats->downtime) == 0)
--
1.8.3.1
2:39 a.m.
New subject: [libvirt] [PATCH v3 02/16] qemu: introduce qemu domain job status
This patch simply switches code from using VIR_DOMAIN_JOB_* to
introduced QEMU_DOMAIN_JOB_STATUS_*. Later this gives us freedom
to introduce states for postcopy and mirroring phases.
---
src/qemu/qemu_domain.c | 27 ++++++++++++++++++++--
src/qemu/qemu_domain.h | 11 ++++++++-
src/qemu/qemu_driver.c | 11 ++++-----
src/qemu/qemu_migration.c | 50 +++++++++++++++++++---------------------
src/qemu/qemu_migration_cookie.c | 2 +-
src/qemu/qemu_process.c | 2 +-
6 files changed, 66 insertions(+), 37 deletions(-)
diff --git a/src/qemu/qemu_domain.c b/src/qemu/qemu_domain.c
index 54d9425..0ae53ef 100644
--- a/src/qemu/qemu_domain.c
+++ b/src/qemu/qemu_domain.c
@@ -402,11 +402,34 @@ qemuDomainJobInfoUpdateDowntime(qemuDomainJobInfoPtr jobInfo)
return 0;
}
+static virDomainJobType
+qemuDomainJobStatusToType(qemuDomainJobStatus status)
+{
+ switch (status) {
+ case QEMU_DOMAIN_JOB_STATUS_NONE:
+ break;
+
+ case QEMU_DOMAIN_JOB_STATUS_ACTIVE:
+ return VIR_DOMAIN_JOB_UNBOUNDED;
+
+ case QEMU_DOMAIN_JOB_STATUS_COMPLETED:
+ return VIR_DOMAIN_JOB_COMPLETED;
+
+ case QEMU_DOMAIN_JOB_STATUS_FAILED:
+ return VIR_DOMAIN_JOB_FAILED;
+
+ case QEMU_DOMAIN_JOB_STATUS_CANCELED:
+ return VIR_DOMAIN_JOB_CANCELLED;
+ }
+
+ return VIR_DOMAIN_JOB_NONE;
+}
+
int
qemuDomainJobInfoToInfo(qemuDomainJobInfoPtr jobInfo,
virDomainJobInfoPtr info)
{
- info->type = jobInfo->type;
+ info->type = qemuDomainJobStatusToType(jobInfo->status);
info->timeElapsed = jobInfo->timeElapsed;
info->memTotal = jobInfo->stats.ram_total;
@@ -561,7 +584,7 @@ qemuDomainJobInfoToParams(qemuDomainJobInfoPtr jobInfo,
stats->cpu_throttle_percentage) < 0)
goto error;
- *type = jobInfo->type;
+ *type = qemuDomainJobStatusToType(jobInfo->status);
*params = par;
*nparams = npar;
return 0;
diff --git a/src/qemu/qemu_domain.h b/src/qemu/qemu_domain.h
index caf1ebe..a5791bf 100644
--- a/src/qemu/qemu_domain.h
+++ b/src/qemu/qemu_domain.h
@@ -99,10 +99,19 @@ typedef enum {
} qemuDomainAsyncJob;
VIR_ENUM_DECL(qemuDomainAsyncJob)
+typedef enum {
+ QEMU_DOMAIN_JOB_STATUS_NONE = 0,
+ QEMU_DOMAIN_JOB_STATUS_ACTIVE,
+ QEMU_DOMAIN_JOB_STATUS_COMPLETED,
+ QEMU_DOMAIN_JOB_STATUS_FAILED,
+ QEMU_DOMAIN_JOB_STATUS_CANCELED,
+} qemuDomainJobStatus;
+
typedef struct _qemuDomainJobInfo qemuDomainJobInfo;
typedef qemuDomainJobInfo *qemuDomainJobInfoPtr;
struct _qemuDomainJobInfo {
- virDomainJobType type;
+ qemuDomainJobStatus status;
+
unsigned long long started; /* When the async job started */
unsigned long long stopped; /* When the domain's CPUs were stopped */
unsigned long long sent; /* When the source sent status info to the
diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c
index 388af4f..c5cca07 100644
--- a/src/qemu/qemu_driver.c
+++ b/src/qemu/qemu_driver.c
@@ -3156,7 +3156,7 @@ qemuDomainSaveInternal(virQEMUDriverPtr driver, virDomainPtr dom,
goto endjob;
}
- priv->job.current->type = VIR_DOMAIN_JOB_UNBOUNDED;
+ priv->job.current->status = QEMU_DOMAIN_JOB_STATUS_ACTIVE;
/* Pause */
if (virDomainObjGetState(vm, NULL) == VIR_DOMAIN_RUNNING) {
@@ -12781,14 +12781,13 @@ qemuDomainGetJobStatsInternal(virQEMUDriverPtr driver,
info = priv->job.current;
if (!info) {
- jobInfo->type = VIR_DOMAIN_JOB_NONE;
+ jobInfo->status = QEMU_DOMAIN_JOB_STATUS_NONE;
ret = 0;
goto cleanup;
}
*jobInfo = *info;
- if (jobInfo->type == VIR_DOMAIN_JOB_BOUNDED ||
- jobInfo->type == VIR_DOMAIN_JOB_UNBOUNDED) {
+ if (jobInfo->status == QEMU_DOMAIN_JOB_STATUS_ACTIVE) {
if (fetch)
ret = qemuMigrationFetchJobStatus(driver, vm, QEMU_ASYNC_JOB_NONE,
jobInfo);
@@ -12823,7 +12822,7 @@ qemuDomainGetJobInfo(virDomainPtr dom,
if (qemuDomainGetJobStatsInternal(driver, vm, false, &jobInfo) < 0)
goto cleanup;
- if (jobInfo.type == VIR_DOMAIN_JOB_NONE) {
+ if (jobInfo.status == QEMU_DOMAIN_JOB_STATUS_NONE) {
memset(info, 0, sizeof(*info));
info->type = VIR_DOMAIN_JOB_NONE;
ret = 0;
@@ -12864,7 +12863,7 @@ qemuDomainGetJobStats(virDomainPtr dom,
if (qemuDomainGetJobStatsInternal(driver, vm, completed, &jobInfo) < 0)
goto cleanup;
- if (jobInfo.type == VIR_DOMAIN_JOB_NONE) {
+ if (jobInfo.status == QEMU_DOMAIN_JOB_STATUS_NONE) {
*type = VIR_DOMAIN_JOB_NONE;
*params = NULL;
*nparams = 0;
diff --git a/src/qemu/qemu_migration.c b/src/qemu/qemu_migration.c
index d8222fe..e9a3fd0 100644
--- a/src/qemu/qemu_migration.c
+++ b/src/qemu/qemu_migration.c
@@ -946,7 +946,7 @@ qemuMigrationDriveMirror(virQEMUDriverPtr driver,
goto cleanup;
if (priv->job.abortJob) {
- priv->job.current->type = VIR_DOMAIN_JOB_CANCELLED;
+ priv->job.current->status = QEMU_DOMAIN_JOB_STATUS_CANCELED;
virReportError(VIR_ERR_OPERATION_ABORTED, _("%s: %s"),
qemuDomainAsyncJobTypeToString(priv->job.asyncJob),
_("canceled by client"));
@@ -1315,19 +1315,19 @@ qemuMigrationUpdateJobType(qemuDomainJobInfoPtr jobInfo)
{
switch ((qemuMonitorMigrationStatus) jobInfo->stats.status) {
case QEMU_MONITOR_MIGRATION_STATUS_COMPLETED:
- jobInfo->type = VIR_DOMAIN_JOB_COMPLETED;
+ jobInfo->status = QEMU_DOMAIN_JOB_STATUS_COMPLETED;
break;
case QEMU_MONITOR_MIGRATION_STATUS_INACTIVE:
- jobInfo->type = VIR_DOMAIN_JOB_NONE;
+ jobInfo->status = QEMU_DOMAIN_JOB_STATUS_NONE;
break;
case QEMU_MONITOR_MIGRATION_STATUS_ERROR:
- jobInfo->type = VIR_DOMAIN_JOB_FAILED;
+ jobInfo->status = QEMU_DOMAIN_JOB_STATUS_FAILED;
break;
case QEMU_MONITOR_MIGRATION_STATUS_CANCELLED:
- jobInfo->type = VIR_DOMAIN_JOB_CANCELLED;
+ jobInfo->status = QEMU_DOMAIN_JOB_STATUS_CANCELED;
break;
case QEMU_MONITOR_MIGRATION_STATUS_SETUP:
@@ -1414,32 +1414,30 @@ qemuMigrationCheckJobStatus(virQEMUDriverPtr driver,
else if (qemuMigrationUpdateJobStatus(driver, vm, asyncJob) < 0)
return -1;
- switch (jobInfo->type) {
- case VIR_DOMAIN_JOB_NONE:
+ switch (jobInfo->status) {
+ case QEMU_DOMAIN_JOB_STATUS_NONE:
virReportError(VIR_ERR_OPERATION_FAILED, _("%s: %s"),
qemuMigrationJobName(vm), _("is not active"));
return -1;
- case VIR_DOMAIN_JOB_FAILED:
+ case QEMU_DOMAIN_JOB_STATUS_FAILED:
virReportError(VIR_ERR_OPERATION_FAILED, _("%s: %s"),
qemuMigrationJobName(vm), _("unexpectedly failed"));
return -1;
- case VIR_DOMAIN_JOB_CANCELLED:
+ case QEMU_DOMAIN_JOB_STATUS_CANCELED:
virReportError(VIR_ERR_OPERATION_ABORTED, _("%s: %s"),
qemuMigrationJobName(vm), _("canceled by client"));
return -1;
- case VIR_DOMAIN_JOB_COMPLETED:
+ case QEMU_DOMAIN_JOB_STATUS_COMPLETED:
/* Fetch statistics of a completed migration */
if (events && updateJobStats &&
qemuMigrationUpdateJobStatus(driver, vm, asyncJob) < 0)
return -1;
break;
- case VIR_DOMAIN_JOB_BOUNDED:
- case VIR_DOMAIN_JOB_UNBOUNDED:
- case VIR_DOMAIN_JOB_LAST:
+ case QEMU_DOMAIN_JOB_STATUS_ACTIVE:
break;
}
return 0;
@@ -1497,7 +1495,7 @@ qemuMigrationCompleted(virQEMUDriverPtr driver,
* will continue waiting until the migrate state changes to completed.
*/
if (flags & QEMU_MIGRATION_COMPLETED_POSTCOPY &&
- jobInfo->type == VIR_DOMAIN_JOB_UNBOUNDED &&
+ jobInfo->status == QEMU_DOMAIN_JOB_STATUS_ACTIVE &&
jobInfo->stats.status == QEMU_MONITOR_MIGRATION_STATUS_POSTCOPY) {
VIR_DEBUG("Migration switched to post-copy");
if (updateStats &&
@@ -1506,18 +1504,18 @@ qemuMigrationCompleted(virQEMUDriverPtr driver,
return 1;
}
- if (jobInfo->type == VIR_DOMAIN_JOB_COMPLETED)
+ if (jobInfo->status == QEMU_DOMAIN_JOB_STATUS_COMPLETED)
return 1;
else
return 0;
error:
- if (jobInfo->type == VIR_DOMAIN_JOB_UNBOUNDED) {
+ if (jobInfo->status == QEMU_DOMAIN_JOB_STATUS_ACTIVE) {
/* The migration was aborted by us rather than QEMU itself. */
- jobInfo->type = VIR_DOMAIN_JOB_FAILED;
+ jobInfo->status = QEMU_DOMAIN_JOB_STATUS_FAILED;
return -2;
- } else if (jobInfo->type == VIR_DOMAIN_JOB_COMPLETED) {
- jobInfo->type = VIR_DOMAIN_JOB_FAILED;
+ } else if (jobInfo->status == QEMU_DOMAIN_JOB_STATUS_COMPLETED) {
+ jobInfo->status = QEMU_DOMAIN_JOB_STATUS_FAILED;
return -1;
} else {
return -1;
@@ -1542,7 +1540,7 @@ qemuMigrationWaitForCompletion(virQEMUDriverPtr driver,
flags |= QEMU_MIGRATION_COMPLETED_UPDATE_STATS;
- jobInfo->type = VIR_DOMAIN_JOB_UNBOUNDED;
+ jobInfo->status = QEMU_DOMAIN_JOB_STATUS_ACTIVE;
while ((rv = qemuMigrationCompleted(driver, vm, asyncJob,
dconn, flags)) != 1) {
if (rv < 0)
@@ -1550,7 +1548,7 @@ qemuMigrationWaitForCompletion(virQEMUDriverPtr driver,
if (events) {
if (virDomainObjWait(vm) < 0) {
- jobInfo->type = VIR_DOMAIN_JOB_FAILED;
+ jobInfo->status = QEMU_DOMAIN_JOB_STATUS_FAILED;
return -2;
}
} else {
@@ -3719,7 +3717,7 @@ qemuMigrationRun(virQEMUDriverPtr driver,
* as this is a critical section so we are guaranteed
* priv->job.abortJob will not change */
ignore_value(qemuDomainObjExitMonitor(driver, vm));
- priv->job.current->type = VIR_DOMAIN_JOB_CANCELLED;
+ priv->job.current->status = QEMU_DOMAIN_JOB_STATUS_CANCELED;
virReportError(VIR_ERR_OPERATION_ABORTED, _("%s: %s"),
qemuDomainAsyncJobTypeToString(priv->job.asyncJob),
_("canceled by client"));
@@ -3853,8 +3851,8 @@ qemuMigrationRun(virQEMUDriverPtr driver,
ignore_value(virTimeMillisNow(&priv->job.completed->sent));
}
- if (priv->job.current->type == VIR_DOMAIN_JOB_UNBOUNDED &&
!inPostCopy)
- priv->job.current->type = VIR_DOMAIN_JOB_FAILED;
+ if (priv->job.current->status == QEMU_DOMAIN_JOB_STATUS_ACTIVE &&
!inPostCopy)
+ priv->job.current->status = QEMU_DOMAIN_JOB_STATUS_FAILED;
cookieFlags |= QEMU_MIGRATION_COOKIE_NETWORK |
QEMU_MIGRATION_COOKIE_STATS;
@@ -3896,7 +3894,7 @@ qemuMigrationRun(virQEMUDriverPtr driver,
goto cleanup;
cancelPostCopy:
- priv->job.current->type = VIR_DOMAIN_JOB_FAILED;
+ priv->job.current->status = QEMU_DOMAIN_JOB_STATUS_FAILED;
if (inPostCopy)
goto cancel;
else
@@ -5607,7 +5605,7 @@ qemuMigrationJobStart(virQEMUDriverPtr driver,
JOB_MASK(QEMU_JOB_MIGRATION_OP)));
}
- priv->job.current->type = VIR_DOMAIN_JOB_UNBOUNDED;
+ priv->job.current->status = QEMU_DOMAIN_JOB_STATUS_ACTIVE;
return 0;
}
diff --git a/src/qemu/qemu_migration_cookie.c b/src/qemu/qemu_migration_cookie.c
index ae56569..afe8682 100644
--- a/src/qemu/qemu_migration_cookie.c
+++ b/src/qemu/qemu_migration_cookie.c
@@ -953,7 +953,7 @@ qemuMigrationCookieStatisticsXMLParse(xmlXPathContextPtr ctxt)
goto cleanup;
stats = &jobInfo->stats;
- jobInfo->type = VIR_DOMAIN_JOB_COMPLETED;
+ jobInfo->status = QEMU_DOMAIN_JOB_STATUS_COMPLETED;
virXPathULongLong("string(./started[1])", ctxt, &jobInfo->started);
virXPathULongLong("string(./stopped[1])", ctxt, &jobInfo->stopped);
diff --git a/src/qemu/qemu_process.c b/src/qemu/qemu_process.c
index 5e119a2..1f1e2dc 100644
--- a/src/qemu/qemu_process.c
+++ b/src/qemu/qemu_process.c
@@ -4151,7 +4151,7 @@ qemuProcessBeginJob(virQEMUDriverPtr driver,
return -1;
qemuDomainObjSetAsyncJobMask(vm, QEMU_JOB_NONE);
- priv->job.current->type = VIR_DOMAIN_JOB_UNBOUNDED;
+ priv->job.current->status = QEMU_DOMAIN_JOB_STATUS_ACTIVE;
return 0;
}
--
1.8.3.1
2:39 a.m.
New subject: [libvirt] [PATCH v3 03/16] qemu: introduce QEMU_DOMAIN_JOB_STATUS_POSTCOPY
Current code consults job.current->stats.status to check for postcopy
state. First it is more correct to check for both job.current->status
and job.current->stats.status.code because on some paths on failures
we change only the former. Second if qemu supports migration events
then stats can change unexpectedly.
Let's introduce QEMU_DOMAIN_JOB_STATUS_POSTCOPY state for job.current->status.
This patch removes all state checking usage of stats except for
qemuDomainGetJobStatsInternal. This place will be handled separately.
---
src/qemu/qemu_domain.c | 1 +
src/qemu/qemu_domain.h | 1 +
src/qemu/qemu_driver.c | 5 +++--
src/qemu/qemu_migration.c | 18 +++++++++++-------
src/qemu/qemu_process.c | 4 ++--
5 files changed, 18 insertions(+), 11 deletions(-)
diff --git a/src/qemu/qemu_domain.c b/src/qemu/qemu_domain.c
index 0ae53ef..ba331dc 100644
--- a/src/qemu/qemu_domain.c
+++ b/src/qemu/qemu_domain.c
@@ -410,6 +410,7 @@ qemuDomainJobStatusToType(qemuDomainJobStatus status)
break;
case QEMU_DOMAIN_JOB_STATUS_ACTIVE:
+ case QEMU_DOMAIN_JOB_STATUS_POSTCOPY:
return VIR_DOMAIN_JOB_UNBOUNDED;
case QEMU_DOMAIN_JOB_STATUS_COMPLETED:
diff --git a/src/qemu/qemu_domain.h b/src/qemu/qemu_domain.h
index a5791bf..58715c2 100644
--- a/src/qemu/qemu_domain.h
+++ b/src/qemu/qemu_domain.h
@@ -102,6 +102,7 @@ VIR_ENUM_DECL(qemuDomainAsyncJob)
typedef enum {
QEMU_DOMAIN_JOB_STATUS_NONE = 0,
QEMU_DOMAIN_JOB_STATUS_ACTIVE,
+ QEMU_DOMAIN_JOB_STATUS_POSTCOPY,
QEMU_DOMAIN_JOB_STATUS_COMPLETED,
QEMU_DOMAIN_JOB_STATUS_FAILED,
QEMU_DOMAIN_JOB_STATUS_CANCELED,
diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c
index c5cca07..48029be 100644
--- a/src/qemu/qemu_driver.c
+++ b/src/qemu/qemu_driver.c
@@ -12787,7 +12787,8 @@ qemuDomainGetJobStatsInternal(virQEMUDriverPtr driver,
}
*jobInfo = *info;
- if (jobInfo->status == QEMU_DOMAIN_JOB_STATUS_ACTIVE) {
+ if (jobInfo->status == QEMU_DOMAIN_JOB_STATUS_ACTIVE ||
+ jobInfo->status == QEMU_DOMAIN_JOB_STATUS_POSTCOPY) {
if (fetch)
ret = qemuMigrationFetchJobStatus(driver, vm, QEMU_ASYNC_JOB_NONE,
jobInfo);
@@ -12921,7 +12922,7 @@ static int qemuDomainAbortJob(virDomainPtr dom)
}
if (priv->job.asyncJob == QEMU_ASYNC_JOB_MIGRATION_OUT &&
- (priv->job.current->stats.status == QEMU_MONITOR_MIGRATION_STATUS_POSTCOPY
||
+ (priv->job.current->status == QEMU_DOMAIN_JOB_STATUS_POSTCOPY ||
(virDomainObjGetState(vm, &reason) == VIR_DOMAIN_PAUSED &&
reason == VIR_DOMAIN_PAUSED_POSTCOPY))) {
virReportError(VIR_ERR_OPERATION_INVALID, "%s",
diff --git a/src/qemu/qemu_migration.c b/src/qemu/qemu_migration.c
index e9a3fd0..b4fc46c 100644
--- a/src/qemu/qemu_migration.c
+++ b/src/qemu/qemu_migration.c
@@ -1314,6 +1314,10 @@ static void
qemuMigrationUpdateJobType(qemuDomainJobInfoPtr jobInfo)
{
switch ((qemuMonitorMigrationStatus) jobInfo->stats.status) {
+ case QEMU_MONITOR_MIGRATION_STATUS_POSTCOPY:
+ jobInfo->status = QEMU_DOMAIN_JOB_STATUS_POSTCOPY;
+ break;
+
case QEMU_MONITOR_MIGRATION_STATUS_COMPLETED:
jobInfo->status = QEMU_DOMAIN_JOB_STATUS_COMPLETED;
break;
@@ -1332,7 +1336,6 @@ qemuMigrationUpdateJobType(qemuDomainJobInfoPtr jobInfo)
case QEMU_MONITOR_MIGRATION_STATUS_SETUP:
case QEMU_MONITOR_MIGRATION_STATUS_ACTIVE:
- case QEMU_MONITOR_MIGRATION_STATUS_POSTCOPY:
case QEMU_MONITOR_MIGRATION_STATUS_CANCELLING:
case QEMU_MONITOR_MIGRATION_STATUS_LAST:
break;
@@ -1438,6 +1441,7 @@ qemuMigrationCheckJobStatus(virQEMUDriverPtr driver,
break;
case QEMU_DOMAIN_JOB_STATUS_ACTIVE:
+ case QEMU_DOMAIN_JOB_STATUS_POSTCOPY:
break;
}
return 0;
@@ -1495,8 +1499,7 @@ qemuMigrationCompleted(virQEMUDriverPtr driver,
* will continue waiting until the migrate state changes to completed.
*/
if (flags & QEMU_MIGRATION_COMPLETED_POSTCOPY &&
- jobInfo->status == QEMU_DOMAIN_JOB_STATUS_ACTIVE &&
- jobInfo->stats.status == QEMU_MONITOR_MIGRATION_STATUS_POSTCOPY) {
+ jobInfo->status == QEMU_DOMAIN_JOB_STATUS_POSTCOPY) {
VIR_DEBUG("Migration switched to post-copy");
if (updateStats &&
qemuMigrationUpdateJobStatus(driver, vm, asyncJob) < 0)
@@ -1510,7 +1513,8 @@ qemuMigrationCompleted(virQEMUDriverPtr driver,
return 0;
error:
- if (jobInfo->status == QEMU_DOMAIN_JOB_STATUS_ACTIVE) {
+ if (jobInfo->status == QEMU_DOMAIN_JOB_STATUS_ACTIVE ||
+ jobInfo->status == QEMU_DOMAIN_JOB_STATUS_POSTCOPY) {
/* The migration was aborted by us rather than QEMU itself. */
jobInfo->status = QEMU_DOMAIN_JOB_STATUS_FAILED;
return -2;
@@ -3799,7 +3803,7 @@ qemuMigrationRun(virQEMUDriverPtr driver,
else if (rc == -1)
goto cleanup;
- if (priv->job.current->stats.status == QEMU_MONITOR_MIGRATION_STATUS_POSTCOPY)
+ if (priv->job.current->status == QEMU_DOMAIN_JOB_STATUS_POSTCOPY)
inPostCopy = true;
/* When migration completed, QEMU will have paused the CPUs for us.
@@ -3851,7 +3855,7 @@ qemuMigrationRun(virQEMUDriverPtr driver,
ignore_value(virTimeMillisNow(&priv->job.completed->sent));
}
- if (priv->job.current->status == QEMU_DOMAIN_JOB_STATUS_ACTIVE &&
!inPostCopy)
+ if (priv->job.current->status == QEMU_DOMAIN_JOB_STATUS_ACTIVE)
priv->job.current->status = QEMU_DOMAIN_JOB_STATUS_FAILED;
cookieFlags |= QEMU_MIGRATION_COOKIE_NETWORK |
@@ -5221,7 +5225,7 @@ qemuMigrationFinish(virQEMUDriverPtr driver,
goto endjob;
}
- if (priv->job.current->stats.status == QEMU_MONITOR_MIGRATION_STATUS_POSTCOPY)
+ if (priv->job.current->status == QEMU_DOMAIN_JOB_STATUS_POSTCOPY)
inPostCopy = true;
if (!(flags & VIR_MIGRATE_PAUSED)) {
diff --git a/src/qemu/qemu_process.c b/src/qemu/qemu_process.c
index 1f1e2dc..42cb0d4 100644
--- a/src/qemu/qemu_process.c
+++ b/src/qemu/qemu_process.c
@@ -706,8 +706,8 @@ qemuProcessHandleStop(qemuMonitorPtr mon ATTRIBUTE_UNUSED,
}
if (priv->job.asyncJob == QEMU_ASYNC_JOB_MIGRATION_OUT) {
- if (priv->job.current->stats.status ==
- QEMU_MONITOR_MIGRATION_STATUS_POSTCOPY) {
+ if (priv->job.current->status ==
+ QEMU_DOMAIN_JOB_STATUS_POSTCOPY) {
reason = VIR_DOMAIN_PAUSED_POSTCOPY;
detail = VIR_DOMAIN_EVENT_SUSPENDED_POSTCOPY;
} else {
--
1.8.3.1
2:39 a.m.
New subject: [libvirt] [PATCH v3 04/16] qemu: drop QEMU_MIGRATION_COMPLETED_UPDATE_STATS
This way we get stats only in one place. The former code waits for
complete/postcopy status basically and don't need to mess with stats.
The patch drops raising an error on stats updates failure. This
does not make much sense anyway.
---
src/qemu/qemu_migration.c | 24 +++++++-----------------
1 file changed, 7 insertions(+), 17 deletions(-)
diff --git a/src/qemu/qemu_migration.c b/src/qemu/qemu_migration.c
index b4fc46c..f766ca6 100644
--- a/src/qemu/qemu_migration.c
+++ b/src/qemu/qemu_migration.c
@@ -1404,8 +1404,7 @@ qemuMigrationUpdateJobStatus(virQEMUDriverPtr driver,
static int
qemuMigrationCheckJobStatus(virQEMUDriverPtr driver,
virDomainObjPtr vm,
- qemuDomainAsyncJob asyncJob,
- bool updateJobStats)
+ qemuDomainAsyncJob asyncJob)
{
qemuDomainObjPrivatePtr priv = vm->privateData;
qemuDomainJobInfoPtr jobInfo = priv->job.current;
@@ -1434,12 +1433,6 @@ qemuMigrationCheckJobStatus(virQEMUDriverPtr driver,
return -1;
case QEMU_DOMAIN_JOB_STATUS_COMPLETED:
- /* Fetch statistics of a completed migration */
- if (events && updateJobStats &&
- qemuMigrationUpdateJobStatus(driver, vm, asyncJob) < 0)
- return -1;
- break;
-
case QEMU_DOMAIN_JOB_STATUS_ACTIVE:
case QEMU_DOMAIN_JOB_STATUS_POSTCOPY:
break;
@@ -1451,10 +1444,10 @@ qemuMigrationCheckJobStatus(virQEMUDriverPtr driver,
enum qemuMigrationCompletedFlags {
QEMU_MIGRATION_COMPLETED_ABORT_ON_ERROR = (1 << 0),
QEMU_MIGRATION_COMPLETED_CHECK_STORAGE = (1 << 1),
- QEMU_MIGRATION_COMPLETED_UPDATE_STATS = (1 << 2),
- QEMU_MIGRATION_COMPLETED_POSTCOPY = (1 << 3),
+ QEMU_MIGRATION_COMPLETED_POSTCOPY = (1 << 2),
};
+
/**
* Returns 1 if migration completed successfully,
* 0 if the domain is still being migrated,
@@ -1471,9 +1464,8 @@ qemuMigrationCompleted(virQEMUDriverPtr driver,
qemuDomainObjPrivatePtr priv = vm->privateData;
qemuDomainJobInfoPtr jobInfo = priv->job.current;
int pauseReason;
- bool updateStats = !!(flags & QEMU_MIGRATION_COMPLETED_UPDATE_STATS);
- if (qemuMigrationCheckJobStatus(driver, vm, asyncJob, updateStats) < 0)
+ if (qemuMigrationCheckJobStatus(driver, vm, asyncJob) < 0)
goto error;
if (flags & QEMU_MIGRATION_COMPLETED_CHECK_STORAGE &&
@@ -1501,9 +1493,6 @@ qemuMigrationCompleted(virQEMUDriverPtr driver,
if (flags & QEMU_MIGRATION_COMPLETED_POSTCOPY &&
jobInfo->status == QEMU_DOMAIN_JOB_STATUS_POSTCOPY) {
VIR_DEBUG("Migration switched to post-copy");
- if (updateStats &&
- qemuMigrationUpdateJobStatus(driver, vm, asyncJob) < 0)
- goto error;
return 1;
}
@@ -1542,8 +1531,6 @@ qemuMigrationWaitForCompletion(virQEMUDriverPtr driver,
bool events = virQEMUCapsGet(priv->qemuCaps, QEMU_CAPS_MIGRATION_EVENT);
int rv;
- flags |= QEMU_MIGRATION_COMPLETED_UPDATE_STATS;
-
jobInfo->status = QEMU_DOMAIN_JOB_STATUS_ACTIVE;
while ((rv = qemuMigrationCompleted(driver, vm, asyncJob,
dconn, flags)) != 1) {
@@ -1565,6 +1552,9 @@ qemuMigrationWaitForCompletion(virQEMUDriverPtr driver,
}
}
+ if (events)
+ ignore_value(qemuMigrationUpdateJobStatus(driver, vm, asyncJob));
+
qemuDomainJobInfoUpdateDowntime(jobInfo);
VIR_FREE(priv->job.completed);
if (VIR_ALLOC(priv->job.completed) == 0)
--
1.8.3.1
2:39 a.m.
New subject: [libvirt] [PATCH v3 05/16] qemu: drop excessive zero-out in qemuMigrationFetchJobStatus
qemuMonitorGetMigrationStats will do it for us anyway.
---
src/qemu/qemu_migration.c | 1 -
1 file changed, 1 deletion(-)
diff --git a/src/qemu/qemu_migration.c b/src/qemu/qemu_migration.c
index f766ca6..022fad0 100644
--- a/src/qemu/qemu_migration.c
+++ b/src/qemu/qemu_migration.c
@@ -1355,7 +1355,6 @@ qemuMigrationFetchJobStatus(virQEMUDriverPtr driver,
if (qemuDomainObjEnterMonitorAsync(driver, vm, asyncJob) < 0)
return -1;
- memset(&jobInfo->stats, 0, sizeof(jobInfo->stats));
rv = qemuMonitorGetMigrationStats(priv->mon, &jobInfo->stats);
if (qemuDomainObjExitMonitor(driver, vm) < 0 || rv < 0)
--
1.8.3.1
2:39 a.m.
New subject: [libvirt] [PATCH v3 06/16] qemu: refactor fetching migration stats
qemuMigrationFetchJobStatus is rather inconvinient. Some of its
callers don't need status to be updated, some don't need to update
elapsed time right away. So let's update status or elapsed time
in callers instead.
In qemuMigrationConfirmPhase we should fetch stats with copy
flag set as stats variable refers to domain object not the stack.
This patch drops updating job status on getting job stats by
client. This way we will not provide status 'completed' while
it is not yet updated by migration routine.
---
src/qemu/qemu_driver.c | 16 ++++++++-------
src/qemu/qemu_migration.c | 52 +++++++++++++++++++----------------------------
src/qemu/qemu_migration.h | 9 ++++----
3 files changed, 35 insertions(+), 42 deletions(-)
diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c
index 48029be..f23503a 100644
--- a/src/qemu/qemu_driver.c
+++ b/src/qemu/qemu_driver.c
@@ -12789,15 +12789,17 @@ qemuDomainGetJobStatsInternal(virQEMUDriverPtr driver,
if (jobInfo->status == QEMU_DOMAIN_JOB_STATUS_ACTIVE ||
jobInfo->status == QEMU_DOMAIN_JOB_STATUS_POSTCOPY) {
- if (fetch)
- ret = qemuMigrationFetchJobStatus(driver, vm, QEMU_ASYNC_JOB_NONE,
- jobInfo);
- else
- ret = qemuDomainJobInfoUpdateTime(jobInfo);
- } else {
- ret = 0;
+ if (fetch &&
+ qemuMigrationFetchMigrationStats(driver, vm, QEMU_ASYNC_JOB_NONE,
+ &jobInfo->stats, false) < 0)
+ goto cleanup;
+
+ if (qemuDomainJobInfoUpdateTime(jobInfo) < 0)
+ goto cleanup;
}
+ ret = 0;
+
cleanup:
if (fetch)
qemuDomainObjEndJob(driver, vm);
diff --git a/src/qemu/qemu_migration.c b/src/qemu/qemu_migration.c
index 022fad0..1760908 100644
--- a/src/qemu/qemu_migration.c
+++ b/src/qemu/qemu_migration.c
@@ -1344,24 +1344,28 @@ qemuMigrationUpdateJobType(qemuDomainJobInfoPtr jobInfo)
int
-qemuMigrationFetchJobStatus(virQEMUDriverPtr driver,
- virDomainObjPtr vm,
- qemuDomainAsyncJob asyncJob,
- qemuDomainJobInfoPtr jobInfo)
+qemuMigrationFetchMigrationStats(virQEMUDriverPtr driver,
+ virDomainObjPtr vm,
+ qemuDomainAsyncJob asyncJob,
+ qemuMonitorMigrationStatsPtr stats,
+ bool copy)
{
qemuDomainObjPrivatePtr priv = vm->privateData;
+ qemuMonitorMigrationStats statsCopy;
int rv;
if (qemuDomainObjEnterMonitorAsync(driver, vm, asyncJob) < 0)
return -1;
- rv = qemuMonitorGetMigrationStats(priv->mon, &jobInfo->stats);
+ rv = qemuMonitorGetMigrationStats(priv->mon, copy ? &statsCopy : stats);
if (qemuDomainObjExitMonitor(driver, vm) < 0 || rv < 0)
return -1;
- qemuMigrationUpdateJobType(jobInfo);
- return qemuDomainJobInfoUpdateTime(jobInfo);
+ if (copy)
+ *stats = statsCopy;
+
+ return 0;
}
@@ -1384,23 +1388,6 @@ qemuMigrationJobName(virDomainObjPtr vm)
static int
-qemuMigrationUpdateJobStatus(virQEMUDriverPtr driver,
- virDomainObjPtr vm,
- qemuDomainAsyncJob asyncJob)
-{
- qemuDomainObjPrivatePtr priv = vm->privateData;
- qemuDomainJobInfoPtr jobInfo = priv->job.current;
- qemuDomainJobInfo newInfo = *jobInfo;
-
- if (qemuMigrationFetchJobStatus(driver, vm, asyncJob, &newInfo) < 0)
- return -1;
-
- *jobInfo = newInfo;
- return 0;
-}
-
-
-static int
qemuMigrationCheckJobStatus(virQEMUDriverPtr driver,
virDomainObjPtr vm,
qemuDomainAsyncJob asyncJob)
@@ -1410,11 +1397,12 @@ qemuMigrationCheckJobStatus(virQEMUDriverPtr driver,
bool events = virQEMUCapsGet(priv->qemuCaps, QEMU_CAPS_MIGRATION_EVENT);
- if (events)
- qemuMigrationUpdateJobType(jobInfo);
- else if (qemuMigrationUpdateJobStatus(driver, vm, asyncJob) < 0)
+ if (!events && qemuMigrationFetchMigrationStats(driver, vm, asyncJob,
+ &jobInfo->stats, true) <
0)
return -1;
+ qemuMigrationUpdateJobType(jobInfo);
+
switch (jobInfo->status) {
case QEMU_DOMAIN_JOB_STATUS_NONE:
virReportError(VIR_ERR_OPERATION_FAILED, _("%s: %s"),
@@ -1552,8 +1540,10 @@ qemuMigrationWaitForCompletion(virQEMUDriverPtr driver,
}
if (events)
- ignore_value(qemuMigrationUpdateJobStatus(driver, vm, asyncJob));
+ ignore_value(qemuMigrationFetchMigrationStats(driver, vm, asyncJob,
+ &jobInfo->stats, true));
+ qemuDomainJobInfoUpdateTime(jobInfo);
qemuDomainJobInfoUpdateDowntime(jobInfo);
VIR_FREE(priv->job.completed);
if (VIR_ALLOC(priv->job.completed) == 0)
@@ -3140,9 +3130,9 @@ qemuMigrationConfirmPhase(virQEMUDriverPtr driver,
*/
if (virDomainObjGetState(vm, &reason) == VIR_DOMAIN_PAUSED &&
reason == VIR_DOMAIN_PAUSED_POSTCOPY &&
- qemuMigrationFetchJobStatus(driver, vm,
- QEMU_ASYNC_JOB_MIGRATION_OUT,
- jobInfo) < 0)
+ qemuMigrationFetchMigrationStats(driver, vm,
+ QEMU_ASYNC_JOB_MIGRATION_OUT,
+ &jobInfo->stats, true) < 0)
VIR_WARN("Could not refresh migration statistics");
qemuDomainJobInfoUpdateTime(jobInfo);
diff --git a/src/qemu/qemu_migration.h b/src/qemu/qemu_migration.h
index 6c51f5f..1f6ddba 100644
--- a/src/qemu/qemu_migration.h
+++ b/src/qemu/qemu_migration.h
@@ -279,10 +279,11 @@ qemuMigrationCancel(virQEMUDriverPtr driver,
virDomainObjPtr vm);
int
-qemuMigrationFetchJobStatus(virQEMUDriverPtr driver,
- virDomainObjPtr vm,
- qemuDomainAsyncJob asyncJob,
- qemuDomainJobInfoPtr jobInfo);
+qemuMigrationFetchMigrationStats(virQEMUDriverPtr driver,
+ virDomainObjPtr vm,
+ qemuDomainAsyncJob asyncJob,
+ qemuMonitorMigrationStatsPtr stats,
+ bool copy);
int
qemuMigrationErrorInit(virQEMUDriverPtr driver);
--
1.8.3.1
2:39 a.m.
New subject: [libvirt] [PATCH v3 07/16] qemu: simplify getting completed job stats
---
src/qemu/qemu_driver.c | 26 ++++++++++++--------------
1 file changed, 12 insertions(+), 14 deletions(-)
diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c
index f23503a..da4d8e9 100644
--- a/src/qemu/qemu_driver.c
+++ b/src/qemu/qemu_driver.c
@@ -12744,12 +12744,18 @@ qemuDomainGetJobStatsInternal(virQEMUDriverPtr driver,
qemuDomainJobInfoPtr jobInfo)
{
qemuDomainObjPrivatePtr priv = vm->privateData;
- qemuDomainJobInfoPtr info;
bool fetch = virQEMUCapsGet(priv->qemuCaps, QEMU_CAPS_MIGRATION_EVENT);
int ret = -1;
- if (completed)
- fetch = false;
+ if (completed) {
+ if (priv->job.current || !priv->job.completed) {
+ jobInfo->status = QEMU_DOMAIN_JOB_STATUS_NONE;
+ return 0;
+ }
+
+ *jobInfo = *priv->job.completed;
+ return 0;
+ }
/* Do not ask QEMU if migration is not even running yet */
if (!priv->job.current || !priv->job.current->stats.status)
@@ -12766,26 +12772,18 @@ qemuDomainGetJobStatsInternal(virQEMUDriverPtr driver,
return -1;
}
- if (!completed &&
- !virDomainObjIsActive(vm)) {
+ if (!virDomainObjIsActive(vm)) {
virReportError(VIR_ERR_OPERATION_INVALID, "%s",
_("domain is not running"));
goto cleanup;
}
- if (completed && priv->job.current)
- info = NULL;
- else if (completed)
- info = priv->job.completed;
- else
- info = priv->job.current;
-
- if (!info) {
+ if (!priv->job.current) {
jobInfo->status = QEMU_DOMAIN_JOB_STATUS_NONE;
ret = 0;
goto cleanup;
}
- *jobInfo = *info;
+ *jobInfo = *priv->job.current;
if (jobInfo->status == QEMU_DOMAIN_JOB_STATUS_ACTIVE ||
jobInfo->status == QEMU_DOMAIN_JOB_STATUS_POSTCOPY) {
--
1.8.3.1
2:39 a.m.
New subject: [libvirt] [PATCH v3 08/16] qemu: fail querying destination migration statistics always
Querying destination migration statistics may result in getting
a failure or getting a elapsed time value depending on stats.status
value which is odd. Instead let's always fail. Clients should
be ready to handle this as currently getting failure period
can be considerable.
---
src/qemu/qemu_driver.c | 19 +++++++++----------
1 file changed, 9 insertions(+), 10 deletions(-)
diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c
index da4d8e9..e65448f 100644
--- a/src/qemu/qemu_driver.c
+++ b/src/qemu/qemu_driver.c
@@ -12757,20 +12757,19 @@ qemuDomainGetJobStatsInternal(virQEMUDriverPtr driver,
return 0;
}
+ if (priv->job.asyncJob == QEMU_ASYNC_JOB_MIGRATION_IN) {
+ virReportError(VIR_ERR_OPERATION_UNSUPPORTED, "%s",
+ _("migration statistics are available only on "
+ "the source host"));
+ return -1;
+ }
+
/* Do not ask QEMU if migration is not even running yet */
if (!priv->job.current || !priv->job.current->stats.status)
fetch = false;
- if (fetch) {
- if (priv->job.asyncJob == QEMU_ASYNC_JOB_MIGRATION_IN) {
- virReportError(VIR_ERR_OPERATION_UNSUPPORTED, "%s",
- _("migration statistics are available only on "
- "the source host"));
- return -1;
- }
- if (qemuDomainObjBeginJob(driver, vm, QEMU_JOB_QUERY) < 0)
- return -1;
- }
+ if (fetch && qemuDomainObjBeginJob(driver, vm, QEMU_JOB_QUERY) < 0)
+ return -1;
if (!virDomainObjIsActive(vm)) {
virReportError(VIR_ERR_OPERATION_INVALID, "%s",
--
1.8.3.1
2:39 a.m.
New subject: [libvirt] [PATCH v3 09/16] qemu: start all async job with job status active
Setting status to none has little value - getting job status
will not return even elapsed time.
After this patch getting job stats stays correct in a sence
it will not fetch migration stats because it consults
stats.status before doing the fetch.
---
src/qemu/qemu_domain.c | 1 +
src/qemu/qemu_driver.c | 3 ---
src/qemu/qemu_migration.c | 5 -----
src/qemu/qemu_process.c | 3 ---
4 files changed, 1 insertion(+), 11 deletions(-)
diff --git a/src/qemu/qemu_domain.c b/src/qemu/qemu_domain.c
index ba331dc..2a14499 100644
--- a/src/qemu/qemu_domain.c
+++ b/src/qemu/qemu_domain.c
@@ -3622,6 +3622,7 @@ qemuDomainObjBeginJobInternal(virQEMUDriverPtr driver,
qemuDomainObjResetAsyncJob(priv);
if (VIR_ALLOC(priv->job.current) < 0)
goto cleanup;
+ priv->job.current->status = QEMU_DOMAIN_JOB_STATUS_ACTIVE;
priv->job.asyncJob = asyncJob;
priv->job.asyncOwner = virThreadSelfID();
priv->job.asyncOwnerAPI = virThreadJobGet();
diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c
index e65448f..3854a41 100644
--- a/src/qemu/qemu_driver.c
+++ b/src/qemu/qemu_driver.c
@@ -3138,7 +3138,6 @@ qemuDomainSaveInternal(virQEMUDriverPtr driver, virDomainPtr dom,
bool was_running = false;
int ret = -1;
virObjectEventPtr event = NULL;
- qemuDomainObjPrivatePtr priv = vm->privateData;
virCapsPtr caps;
if (!(caps = virQEMUDriverGetCapabilities(driver, false)))
@@ -3156,8 +3155,6 @@ qemuDomainSaveInternal(virQEMUDriverPtr driver, virDomainPtr dom,
goto endjob;
}
- priv->job.current->status = QEMU_DOMAIN_JOB_STATUS_ACTIVE;
-
/* Pause */
if (virDomainObjGetState(vm, NULL) == VIR_DOMAIN_RUNNING) {
was_running = true;
diff --git a/src/qemu/qemu_migration.c b/src/qemu/qemu_migration.c
index 1760908..388f770 100644
--- a/src/qemu/qemu_migration.c
+++ b/src/qemu/qemu_migration.c
@@ -1518,7 +1518,6 @@ qemuMigrationWaitForCompletion(virQEMUDriverPtr driver,
bool events = virQEMUCapsGet(priv->qemuCaps, QEMU_CAPS_MIGRATION_EVENT);
int rv;
- jobInfo->status = QEMU_DOMAIN_JOB_STATUS_ACTIVE;
while ((rv = qemuMigrationCompleted(driver, vm, asyncJob,
dconn, flags)) != 1) {
if (rv < 0)
@@ -5575,8 +5574,6 @@ qemuMigrationJobStart(virQEMUDriverPtr driver,
virDomainObjPtr vm,
qemuDomainAsyncJob job)
{
- qemuDomainObjPrivatePtr priv = vm->privateData;
-
if (qemuDomainObjBeginAsyncJob(driver, vm, job) < 0)
return -1;
@@ -5588,8 +5585,6 @@ qemuMigrationJobStart(virQEMUDriverPtr driver,
JOB_MASK(QEMU_JOB_MIGRATION_OP)));
}
- priv->job.current->status = QEMU_DOMAIN_JOB_STATUS_ACTIVE;
-
return 0;
}
diff --git a/src/qemu/qemu_process.c b/src/qemu/qemu_process.c
index 42cb0d4..f5cd00b 100644
--- a/src/qemu/qemu_process.c
+++ b/src/qemu/qemu_process.c
@@ -4145,13 +4145,10 @@ int
qemuProcessBeginJob(virQEMUDriverPtr driver,
virDomainObjPtr vm)
{
- qemuDomainObjPrivatePtr priv = vm->privateData;
-
if (qemuDomainObjBeginAsyncJob(driver, vm, QEMU_ASYNC_JOB_START) < 0)
return -1;
qemuDomainObjSetAsyncJobMask(vm, QEMU_JOB_NONE);
- priv->job.current->status = QEMU_DOMAIN_JOB_STATUS_ACTIVE;
return 0;
}
--
1.8.3.1
2:39 a.m.
New subject: [libvirt] [PATCH v3 10/16] qemu: introduce migrating job status
Instead of checking stat.status let's set status to migrating
as soon as migrate command is send (waiting for completion
is a good place too).
---
src/qemu/qemu_domain.c | 1 +
src/qemu/qemu_domain.h | 1 +
src/qemu/qemu_driver.c | 4 +++-
src/qemu/qemu_migration.c | 9 +++++++--
4 files changed, 12 insertions(+), 3 deletions(-)
diff --git a/src/qemu/qemu_domain.c b/src/qemu/qemu_domain.c
index 2a14499..c023e0e 100644
--- a/src/qemu/qemu_domain.c
+++ b/src/qemu/qemu_domain.c
@@ -410,6 +410,7 @@ qemuDomainJobStatusToType(qemuDomainJobStatus status)
break;
case QEMU_DOMAIN_JOB_STATUS_ACTIVE:
+ case QEMU_DOMAIN_JOB_STATUS_MIGRATING:
case QEMU_DOMAIN_JOB_STATUS_POSTCOPY:
return VIR_DOMAIN_JOB_UNBOUNDED;
diff --git a/src/qemu/qemu_domain.h b/src/qemu/qemu_domain.h
index 58715c2..564da49 100644
--- a/src/qemu/qemu_domain.h
+++ b/src/qemu/qemu_domain.h
@@ -102,6 +102,7 @@ VIR_ENUM_DECL(qemuDomainAsyncJob)
typedef enum {
QEMU_DOMAIN_JOB_STATUS_NONE = 0,
QEMU_DOMAIN_JOB_STATUS_ACTIVE,
+ QEMU_DOMAIN_JOB_STATUS_MIGRATING,
QEMU_DOMAIN_JOB_STATUS_POSTCOPY,
QEMU_DOMAIN_JOB_STATUS_COMPLETED,
QEMU_DOMAIN_JOB_STATUS_FAILED,
diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c
index 3854a41..b592abe 100644
--- a/src/qemu/qemu_driver.c
+++ b/src/qemu/qemu_driver.c
@@ -12762,7 +12762,8 @@ qemuDomainGetJobStatsInternal(virQEMUDriverPtr driver,
}
/* Do not ask QEMU if migration is not even running yet */
- if (!priv->job.current || !priv->job.current->stats.status)
+ if (!priv->job.current ||
+ priv->job.current->status == QEMU_DOMAIN_JOB_STATUS_ACTIVE)
fetch = false;
if (fetch && qemuDomainObjBeginJob(driver, vm, QEMU_JOB_QUERY) < 0)
@@ -12782,6 +12783,7 @@ qemuDomainGetJobStatsInternal(virQEMUDriverPtr driver,
*jobInfo = *priv->job.current;
if (jobInfo->status == QEMU_DOMAIN_JOB_STATUS_ACTIVE ||
+ jobInfo->status == QEMU_DOMAIN_JOB_STATUS_MIGRATING ||
jobInfo->status == QEMU_DOMAIN_JOB_STATUS_POSTCOPY) {
if (fetch &&
qemuMigrationFetchMigrationStats(driver, vm, QEMU_ASYNC_JOB_NONE,
diff --git a/src/qemu/qemu_migration.c b/src/qemu/qemu_migration.c
index 388f770..35c86bb 100644
--- a/src/qemu/qemu_migration.c
+++ b/src/qemu/qemu_migration.c
@@ -1421,6 +1421,7 @@ qemuMigrationCheckJobStatus(virQEMUDriverPtr driver,
case QEMU_DOMAIN_JOB_STATUS_COMPLETED:
case QEMU_DOMAIN_JOB_STATUS_ACTIVE:
+ case QEMU_DOMAIN_JOB_STATUS_MIGRATING:
case QEMU_DOMAIN_JOB_STATUS_POSTCOPY:
break;
}
@@ -1489,7 +1490,8 @@ qemuMigrationCompleted(virQEMUDriverPtr driver,
return 0;
error:
- if (jobInfo->status == QEMU_DOMAIN_JOB_STATUS_ACTIVE ||
+ /* state can not be active at this point */
+ if (jobInfo->status == QEMU_DOMAIN_JOB_STATUS_MIGRATING ||
jobInfo->status == QEMU_DOMAIN_JOB_STATUS_POSTCOPY) {
/* The migration was aborted by us rather than QEMU itself. */
jobInfo->status = QEMU_DOMAIN_JOB_STATUS_FAILED;
@@ -1518,6 +1520,8 @@ qemuMigrationWaitForCompletion(virQEMUDriverPtr driver,
bool events = virQEMUCapsGet(priv->qemuCaps, QEMU_CAPS_MIGRATION_EVENT);
int rv;
+ jobInfo->status = QEMU_DOMAIN_JOB_STATUS_MIGRATING;
+
while ((rv = qemuMigrationCompleted(driver, vm, asyncJob,
dconn, flags)) != 1) {
if (rv < 0)
@@ -3833,7 +3837,8 @@ qemuMigrationRun(virQEMUDriverPtr driver,
ignore_value(virTimeMillisNow(&priv->job.completed->sent));
}
- if (priv->job.current->status == QEMU_DOMAIN_JOB_STATUS_ACTIVE)
+ if (priv->job.current->status == QEMU_DOMAIN_JOB_STATUS_ACTIVE ||
+ priv->job.current->status == QEMU_DOMAIN_JOB_STATUS_MIGRATING)
priv->job.current->status = QEMU_DOMAIN_JOB_STATUS_FAILED;
cookieFlags |= QEMU_MIGRATION_COOKIE_NETWORK |
--
1.8.3.1
2:39 a.m.
New subject: [libvirt] [PATCH v3 11/16] qemu: always get job condition on getting job stats
Looks like it is more simple to drop this optimization as we are
going to add getting disks stats during migration via quering qemu
process and checking if we have to acquire job condition becomes
more complicate.
---
src/qemu/qemu_driver.c | 15 +++++----------
1 file changed, 5 insertions(+), 10 deletions(-)
diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c
index b592abe..bb7a64d 100644
--- a/src/qemu/qemu_driver.c
+++ b/src/qemu/qemu_driver.c
@@ -12741,7 +12741,7 @@ qemuDomainGetJobStatsInternal(virQEMUDriverPtr driver,
qemuDomainJobInfoPtr jobInfo)
{
qemuDomainObjPrivatePtr priv = vm->privateData;
- bool fetch = virQEMUCapsGet(priv->qemuCaps, QEMU_CAPS_MIGRATION_EVENT);
+ bool events = virQEMUCapsGet(priv->qemuCaps, QEMU_CAPS_MIGRATION_EVENT);
int ret = -1;
if (completed) {
@@ -12761,12 +12761,7 @@ qemuDomainGetJobStatsInternal(virQEMUDriverPtr driver,
return -1;
}
- /* Do not ask QEMU if migration is not even running yet */
- if (!priv->job.current ||
- priv->job.current->status == QEMU_DOMAIN_JOB_STATUS_ACTIVE)
- fetch = false;
-
- if (fetch && qemuDomainObjBeginJob(driver, vm, QEMU_JOB_QUERY) < 0)
+ if (qemuDomainObjBeginJob(driver, vm, QEMU_JOB_QUERY) < 0)
return -1;
if (!virDomainObjIsActive(vm)) {
@@ -12785,7 +12780,8 @@ qemuDomainGetJobStatsInternal(virQEMUDriverPtr driver,
if (jobInfo->status == QEMU_DOMAIN_JOB_STATUS_ACTIVE ||
jobInfo->status == QEMU_DOMAIN_JOB_STATUS_MIGRATING ||
jobInfo->status == QEMU_DOMAIN_JOB_STATUS_POSTCOPY) {
- if (fetch &&
+
+ if (events && jobInfo->status != QEMU_DOMAIN_JOB_STATUS_ACTIVE
&&
qemuMigrationFetchMigrationStats(driver, vm, QEMU_ASYNC_JOB_NONE,
&jobInfo->stats, false) < 0)
goto cleanup;
@@ -12797,8 +12793,7 @@ qemuDomainGetJobStatsInternal(virQEMUDriverPtr driver,
ret = 0;
cleanup:
- if (fetch)
- qemuDomainObjEndJob(driver, vm);
+ qemuDomainObjEndJob(driver, vm);
return ret;
}
--
1.8.3.1
2:39 a.m.
New subject: [libvirt] [PATCH v3 12/16] qemu: migrate: show disks stats on job info requests
This patch shows incorrect info when client request comes
when migration routine is stopping mirror jobs or mirror
jobs already stopped. This issue will be addressed in next
patch.
---
src/qemu/qemu_driver.c | 4 ++++
src/qemu/qemu_migration.c | 49 +++++++++++++++++++++++++++++++++++++++++++++++
src/qemu/qemu_migration.h | 6 ++++++
3 files changed, 59 insertions(+)
diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c
index bb7a64d..1539e15 100644
--- a/src/qemu/qemu_driver.c
+++ b/src/qemu/qemu_driver.c
@@ -12786,6 +12786,10 @@ qemuDomainGetJobStatsInternal(virQEMUDriverPtr driver,
&jobInfo->stats, false) < 0)
goto cleanup;
+ if (qemuMigrationFetchMirrorStats(driver, vm, QEMU_ASYNC_JOB_NONE,
+ &jobInfo->stats) < 0)
+ goto cleanup;
+
if (qemuDomainJobInfoUpdateTime(jobInfo) < 0)
goto cleanup;
}
diff --git a/src/qemu/qemu_migration.c b/src/qemu/qemu_migration.c
index 35c86bb..16f1265 100644
--- a/src/qemu/qemu_migration.c
+++ b/src/qemu/qemu_migration.c
@@ -5871,3 +5871,52 @@ qemuMigrationReset(virQEMUDriverPtr driver,
virFreeError(err);
}
}
+
+
+int
+qemuMigrationFetchMirrorStats(virQEMUDriverPtr driver,
+ virDomainObjPtr vm,
+ qemuDomainAsyncJob asyncJob,
+ qemuMonitorMigrationStatsPtr stats)
+{
+ size_t i;
+ qemuDomainObjPrivatePtr priv = vm->privateData;
+ bool nbd = false;
+ virHashTablePtr blockinfo = NULL;
+
+ for (i = 0; i < vm->def->ndisks; i++) {
+ virDomainDiskDefPtr disk = vm->def->disks[i];
+ if (QEMU_DOMAIN_DISK_PRIVATE(disk)->migrating) {
+ nbd = true;
+ break;
+ }
+ }
+
+ if (!nbd)
+ return 0;
+
+ if (qemuDomainObjEnterMonitorAsync(driver, vm, asyncJob) < 0)
+ return -1;
+
+ blockinfo = qemuMonitorGetAllBlockJobInfo(priv->mon);
+
+ if (qemuDomainObjExitMonitor(driver, vm) < 0 || !blockinfo)
+ return -1;
+
+ for (i = 0; i < vm->def->ndisks; i++) {
+ virDomainDiskDefPtr disk = vm->def->disks[i];
+ qemuDomainDiskPrivatePtr diskPriv = QEMU_DOMAIN_DISK_PRIVATE(disk);
+ qemuMonitorBlockJobInfoPtr data;
+
+ if (!diskPriv->migrating ||
+ !(data = virHashLookup(blockinfo, disk->info.alias)))
+ continue;
+
+ stats->disk_transferred += data->cur;
+ stats->disk_total += data->end;
+ stats->disk_remaining += data->end - data->cur;
+ }
+
+ virHashFree(blockinfo);
+ return 0;
+}
diff --git a/src/qemu/qemu_migration.h b/src/qemu/qemu_migration.h
index 1f6ddba..13cfe47 100644
--- a/src/qemu/qemu_migration.h
+++ b/src/qemu/qemu_migration.h
@@ -320,4 +320,10 @@ qemuMigrationReset(virQEMUDriverPtr driver,
virDomainObjPtr vm,
qemuDomainAsyncJob job);
+int
+qemuMigrationFetchMirrorStats(virQEMUDriverPtr driver,
+ virDomainObjPtr vm,
+ qemuDomainAsyncJob asyncJob,
+ qemuMonitorMigrationStatsPtr stats);
+
#endif /* __QEMU_MIGRATION_H__ */
--
1.8.3.1
2:39 a.m.
New subject: [libvirt] [PATCH v3 13/16] qemu: support getting disks stats during stopping block jobs
Let's store disks stats for completed mirror jobs in current
job info. So on getting migration job stats thru API
we take records for completed jobs from current job info
and records for still active jobs by querying qemu process.
As we need to keep disks stats for completed mirror jobs
in current job let's zero out migration stats conditionally
in fetching function.
---
src/qemu/qemu_blockjob.c | 1 +
src/qemu/qemu_domain.h | 1 +
src/qemu/qemu_driver.c | 3 +++
src/qemu/qemu_migration.c | 11 +++++++++++
src/qemu/qemu_monitor.c | 5 +++--
src/qemu/qemu_monitor.h | 4 +++-
src/qemu/qemu_monitor_json.c | 4 +---
src/qemu/qemu_process.c | 3 +++
tests/qemumonitorjsontest.c | 1 +
9 files changed, 27 insertions(+), 6 deletions(-)
diff --git a/src/qemu/qemu_blockjob.c b/src/qemu/qemu_blockjob.c
index 0601e68..f517999 100644
--- a/src/qemu/qemu_blockjob.c
+++ b/src/qemu/qemu_blockjob.c
@@ -232,6 +232,7 @@ qemuBlockJobSyncBegin(virDomainDiskDefPtr disk)
VIR_DEBUG("disk=%s", disk->dst);
diskPriv->blockJobSync = true;
diskPriv->blockJobStatus = -1;
+ diskPriv->blockJobLength = 0;
}
diff --git a/src/qemu/qemu_domain.h b/src/qemu/qemu_domain.h
index 564da49..b002184 100644
--- a/src/qemu/qemu_domain.h
+++ b/src/qemu/qemu_domain.h
@@ -323,6 +323,7 @@ struct _qemuDomainDiskPrivate {
/* for some synchronous block jobs, we need to notify the owner */
int blockJobType; /* type of the block job from the event */
int blockJobStatus; /* status of the finished block job */
+ unsigned long long blockJobLength; /* length of the finished block job */
bool blockJobSync; /* the block job needs synchronized termination */
bool migrating; /* the disk is being migrated */
diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c
index 1539e15..9a706d5 100644
--- a/src/qemu/qemu_driver.c
+++ b/src/qemu/qemu_driver.c
@@ -12781,6 +12781,9 @@ qemuDomainGetJobStatsInternal(virQEMUDriverPtr driver,
jobInfo->status == QEMU_DOMAIN_JOB_STATUS_MIGRATING ||
jobInfo->status == QEMU_DOMAIN_JOB_STATUS_POSTCOPY) {
+ /* Disks stats accounting presumes that fetching migration
+ * stats will not touch disk stats records if disks are migrated via nbd.
+ */
if (events && jobInfo->status != QEMU_DOMAIN_JOB_STATUS_ACTIVE
&&
qemuMigrationFetchMigrationStats(driver, vm, QEMU_ASYNC_JOB_NONE,
&jobInfo->stats, false) < 0)
diff --git a/src/qemu/qemu_migration.c b/src/qemu/qemu_migration.c
index 16f1265..43d87a0 100644
--- a/src/qemu/qemu_migration.c
+++ b/src/qemu/qemu_migration.c
@@ -654,6 +654,7 @@ qemuMigrationDriveMirrorCancelled(virQEMUDriverPtr driver,
size_t active = 0;
int status;
bool failed = false;
+ qemuDomainObjPrivatePtr priv = vm->privateData;
for (i = 0; i < vm->def->ndisks; i++) {
virDomainDiskDefPtr disk = vm->def->disks[i];
@@ -681,6 +682,13 @@ qemuMigrationDriveMirrorCancelled(virQEMUDriverPtr driver,
default:
active++;
}
+
+ if (status == VIR_DOMAIN_BLOCK_JOB_COMPLETED) {
+ qemuMonitorMigrationStatsPtr stats = &priv->job.current->stats;
+
+ stats->disk_transferred += diskPriv->blockJobLength;
+ stats->disk_total += diskPriv->blockJobLength;
+ }
}
if (failed) {
@@ -1357,6 +1365,9 @@ qemuMigrationFetchMigrationStats(virQEMUDriverPtr driver,
if (qemuDomainObjEnterMonitorAsync(driver, vm, asyncJob) < 0)
return -1;
+ if (copy)
+ memset(&statsCopy, 0, sizeof(statsCopy));
+
rv = qemuMonitorGetMigrationStats(priv->mon, copy ? &statsCopy : stats);
if (qemuDomainObjExitMonitor(driver, vm) < 0 || rv < 0)
diff --git a/src/qemu/qemu_monitor.c b/src/qemu/qemu_monitor.c
index 1d40d52..06a5cf8 100644
--- a/src/qemu/qemu_monitor.c
+++ b/src/qemu/qemu_monitor.c
@@ -1504,13 +1504,14 @@ int
qemuMonitorEmitBlockJob(qemuMonitorPtr mon,
const char *diskAlias,
int type,
- int status)
+ int status,
+ unsigned long long len)
{
int ret = -1;
VIR_DEBUG("mon=%p", mon);
QEMU_MONITOR_CALLBACK(mon, ret, domainBlockJob, mon->vm,
- diskAlias, type, status);
+ diskAlias, type, status, len);
return ret;
}
diff --git a/src/qemu/qemu_monitor.h b/src/qemu/qemu_monitor.h
index 12f98be..a71c344 100644
--- a/src/qemu/qemu_monitor.h
+++ b/src/qemu/qemu_monitor.h
@@ -175,6 +175,7 @@ typedef int (*qemuMonitorDomainBlockJobCallback)(qemuMonitorPtr mon,
const char *diskAlias,
int type,
int status,
+ unsigned long long len,
void *opaque);
typedef int (*qemuMonitorDomainTrayChangeCallback)(qemuMonitorPtr mon,
virDomainObjPtr vm,
@@ -374,7 +375,8 @@ int qemuMonitorEmitPMSuspend(qemuMonitorPtr mon);
int qemuMonitorEmitBlockJob(qemuMonitorPtr mon,
const char *diskAlias,
int type,
- int status);
+ int status,
+ unsigned long long len);
int qemuMonitorEmitBalloonChange(qemuMonitorPtr mon,
unsigned long long actual);
int qemuMonitorEmitPMSuspendDisk(qemuMonitorPtr mon);
diff --git a/src/qemu/qemu_monitor_json.c b/src/qemu/qemu_monitor_json.c
index aeb777d..67874ea 100644
--- a/src/qemu/qemu_monitor_json.c
+++ b/src/qemu/qemu_monitor_json.c
@@ -902,7 +902,7 @@ qemuMonitorJSONHandleBlockJobImpl(qemuMonitorPtr mon,
}
out:
- qemuMonitorEmitBlockJob(mon, device, type, event);
+ qemuMonitorEmitBlockJob(mon, device, type, event, len);
}
static void
@@ -2965,8 +2965,6 @@ int qemuMonitorJSONGetMigrationStats(qemuMonitorPtr mon,
NULL);
virJSONValuePtr reply = NULL;
- memset(stats, 0, sizeof(*stats));
-
if (!cmd)
return -1;
diff --git a/src/qemu/qemu_process.c b/src/qemu/qemu_process.c
index f5cd00b..283bf83 100644
--- a/src/qemu/qemu_process.c
+++ b/src/qemu/qemu_process.c
@@ -965,6 +965,7 @@ qemuProcessHandleBlockJob(qemuMonitorPtr mon ATTRIBUTE_UNUSED,
const char *diskAlias,
int type,
int status,
+ unsigned long long len,
void *opaque)
{
virQEMUDriverPtr driver = opaque;
@@ -986,6 +987,8 @@ qemuProcessHandleBlockJob(qemuMonitorPtr mon ATTRIBUTE_UNUSED,
/* We have a SYNC API waiting for this event, dispatch it back */
diskPriv->blockJobType = type;
diskPriv->blockJobStatus = status;
+ diskPriv->blockJobLength = len;
+
virDomainObjBroadcast(vm);
} else {
/* there is no waiting SYNC API, dispatch the update to a thread */
diff --git a/tests/qemumonitorjsontest.c b/tests/qemumonitorjsontest.c
index e9f9d47..873fcd7 100644
--- a/tests/qemumonitorjsontest.c
+++ b/tests/qemumonitorjsontest.c
@@ -1923,6 +1923,7 @@ testQemuMonitorJSONqemuMonitorJSONGetMigrationStats(const void
*data)
"}") < 0)
goto cleanup;
+ memset(&stats, 0, sizeof(stats));
if (qemuMonitorJSONGetMigrationStats(qemuMonitorTestGetMonitor(test), &stats)
< 0)
goto cleanup;
--
1.8.3.1
2:39 a.m.
New subject: [libvirt] [PATCH v3 14/16] qemu: migation: resolve race on getting job info and stopping block jobs
During stopping mirror block jobs vm lock is droped on awating block
job events, thus next scenario is possible:
1. stop mirror block job is sent
2. migration routine awaits for block job event
3. mirror job stopped and event send
4. getting migration job info routine asks for block job info and as
qemu block job stopped and disapperaed we get no block job info.
As a result block job info for the disk will be missed in the result.
To handle this case let's ask qemu for block job info and store it
just before stopping mirror jobs. Next in getting migration job info
routine we detect this race condition and take stored block job info
instead. I guess info will be just slightly outdated and at least
will not go backwards.
---
src/qemu/qemu_migration.c | 33 ++++++++++++++++++++++++++++-----
1 file changed, 28 insertions(+), 5 deletions(-)
diff --git a/src/qemu/qemu_migration.c b/src/qemu/qemu_migration.c
index 43d87a0..76c8554 100644
--- a/src/qemu/qemu_migration.c
+++ b/src/qemu/qemu_migration.c
@@ -1557,6 +1557,7 @@ qemuMigrationWaitForCompletion(virQEMUDriverPtr driver,
ignore_value(qemuMigrationFetchMigrationStats(driver, vm, asyncJob,
&jobInfo->stats, true));
+ qemuMigrationFetchMirrorStats(driver, vm, asyncJob, NULL);
qemuDomainJobInfoUpdateTime(jobInfo);
qemuDomainJobInfoUpdateDowntime(jobInfo);
VIR_FREE(priv->job.completed);
@@ -5884,6 +5885,9 @@ qemuMigrationReset(virQEMUDriverPtr driver,
}
+/* Query qemu for block job stats. If @stats is not NULL then sum them up
+ * in @stats, otherwise store them in disks private area for each disk.
+ */
int
qemuMigrationFetchMirrorStats(virQEMUDriverPtr driver,
virDomainObjPtr vm,
@@ -5918,14 +5922,33 @@ qemuMigrationFetchMirrorStats(virQEMUDriverPtr driver,
virDomainDiskDefPtr disk = vm->def->disks[i];
qemuDomainDiskPrivatePtr diskPriv = QEMU_DOMAIN_DISK_PRIVATE(disk);
qemuMonitorBlockJobInfoPtr data;
+ unsigned long long transferred;
+ unsigned long long total;
- if (!diskPriv->migrating ||
- !(data = virHashLookup(blockinfo, disk->info.alias)))
+ if (!diskPriv->migrating)
continue;
- stats->disk_transferred += data->cur;
- stats->disk_total += data->end;
- stats->disk_remaining += data->end - data->cur;
+ data = virHashLookup(blockinfo, disk->info.alias);
+
+ if (stats) {
+ if (data) {
+ transferred = data->cur;
+ total = data->end;
+ } else {
+ /* Race condition. There is no blockjob for disk already
+ * but is has been migrating via nbd. Thanx we store job
+ * len value just before stopping mirror jobs which can be
+ * good approximation at this point.
+ */
+ total = transferred = diskPriv->blockJobLength;
+ }
+
+ stats->disk_transferred += transferred;
+ stats->disk_total += total;
+ stats->disk_remaining += total - transferred;
+ } else if (data) {
+ diskPriv->blockJobLength = data->end;
+ }
}
virHashFree(blockinfo);
--
1.8.3.1
2:39 a.m.
New subject: [libvirt] [PATCH v3 15/16] qemu: migrate: copy disks stats to completed job
---
src/qemu/qemu_migration.c | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/src/qemu/qemu_migration.c b/src/qemu/qemu_migration.c
index 76c8554..1703274 100644
--- a/src/qemu/qemu_migration.c
+++ b/src/qemu/qemu_migration.c
@@ -3831,6 +3831,13 @@ qemuMigrationRun(virQEMUDriverPtr driver,
QEMU_ASYNC_JOB_MIGRATION_OUT,
dconn) < 0)
ret = -1;
+
+ if (ret == 0 && priv->job.completed) {
+ priv->job.completed->stats.disk_transferred =
+ priv->job.current->stats.disk_transferred;
+ priv->job.completed->stats.disk_total =
+ priv->job.current->stats.disk_total;
+ }
}
VIR_FREE(tlsAlias);
--
1.8.3.1
2:39 a.m.
New subject: [libvirt] [PATCH v3 16/16] qemu: migration: don't expose incomplete job as complete
In case of real migration (not migrating to file on save, dump etc)
migration info is not complete at time qemu finishes migration
in normal (non postcopy) mode. We need to update disks stats,
downtime info etc. Thus let's not expose this job status as
completed.
To archive this let's set status to 'qemu completed' after
qemu reports migration is finished. It is not visible as complete
job to clients. Cookie code on confirm phase will finally turn
job into completed. As we don't need more things to do when
migrating to file status is set to 'completed' as before
in this case.
---
src/qemu/qemu_domain.c | 1 +
src/qemu/qemu_domain.h | 1 +
src/qemu/qemu_driver.c | 1 +
src/qemu/qemu_migration.c | 13 +++++++++----
4 files changed, 12 insertions(+), 4 deletions(-)
diff --git a/src/qemu/qemu_domain.c b/src/qemu/qemu_domain.c
index c023e0e..a61ee81 100644
--- a/src/qemu/qemu_domain.c
+++ b/src/qemu/qemu_domain.c
@@ -411,6 +411,7 @@ qemuDomainJobStatusToType(qemuDomainJobStatus status)
case QEMU_DOMAIN_JOB_STATUS_ACTIVE:
case QEMU_DOMAIN_JOB_STATUS_MIGRATING:
+ case QEMU_DOMAIN_JOB_STATUS_QEMU_COMPLETED:
case QEMU_DOMAIN_JOB_STATUS_POSTCOPY:
return VIR_DOMAIN_JOB_UNBOUNDED;
diff --git a/src/qemu/qemu_domain.h b/src/qemu/qemu_domain.h
index b002184..983ca4e 100644
--- a/src/qemu/qemu_domain.h
+++ b/src/qemu/qemu_domain.h
@@ -103,6 +103,7 @@ typedef enum {
QEMU_DOMAIN_JOB_STATUS_NONE = 0,
QEMU_DOMAIN_JOB_STATUS_ACTIVE,
QEMU_DOMAIN_JOB_STATUS_MIGRATING,
+ QEMU_DOMAIN_JOB_STATUS_QEMU_COMPLETED,
QEMU_DOMAIN_JOB_STATUS_POSTCOPY,
QEMU_DOMAIN_JOB_STATUS_COMPLETED,
QEMU_DOMAIN_JOB_STATUS_FAILED,
diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c
index 9a706d5..e7a0687 100644
--- a/src/qemu/qemu_driver.c
+++ b/src/qemu/qemu_driver.c
@@ -12779,6 +12779,7 @@ qemuDomainGetJobStatsInternal(virQEMUDriverPtr driver,
if (jobInfo->status == QEMU_DOMAIN_JOB_STATUS_ACTIVE ||
jobInfo->status == QEMU_DOMAIN_JOB_STATUS_MIGRATING ||
+ jobInfo->status == QEMU_DOMAIN_JOB_STATUS_QEMU_COMPLETED ||
jobInfo->status == QEMU_DOMAIN_JOB_STATUS_POSTCOPY) {
/* Disks stats accounting presumes that fetching migration
diff --git a/src/qemu/qemu_migration.c b/src/qemu/qemu_migration.c
index 1703274..dfecc96 100644
--- a/src/qemu/qemu_migration.c
+++ b/src/qemu/qemu_migration.c
@@ -1327,7 +1327,7 @@ qemuMigrationUpdateJobType(qemuDomainJobInfoPtr jobInfo)
break;
case QEMU_MONITOR_MIGRATION_STATUS_COMPLETED:
- jobInfo->status = QEMU_DOMAIN_JOB_STATUS_COMPLETED;
+ jobInfo->status = QEMU_DOMAIN_JOB_STATUS_QEMU_COMPLETED;
break;
case QEMU_MONITOR_MIGRATION_STATUS_INACTIVE:
@@ -1433,6 +1433,7 @@ qemuMigrationCheckJobStatus(virQEMUDriverPtr driver,
case QEMU_DOMAIN_JOB_STATUS_COMPLETED:
case QEMU_DOMAIN_JOB_STATUS_ACTIVE:
case QEMU_DOMAIN_JOB_STATUS_MIGRATING:
+ case QEMU_DOMAIN_JOB_STATUS_QEMU_COMPLETED:
case QEMU_DOMAIN_JOB_STATUS_POSTCOPY:
break;
}
@@ -1495,19 +1496,19 @@ qemuMigrationCompleted(virQEMUDriverPtr driver,
return 1;
}
- if (jobInfo->status == QEMU_DOMAIN_JOB_STATUS_COMPLETED)
+ if (jobInfo->status == QEMU_DOMAIN_JOB_STATUS_QEMU_COMPLETED)
return 1;
else
return 0;
error:
- /* state can not be active at this point */
+ /* state can not be active or completed at this point */
if (jobInfo->status == QEMU_DOMAIN_JOB_STATUS_MIGRATING ||
jobInfo->status == QEMU_DOMAIN_JOB_STATUS_POSTCOPY) {
/* The migration was aborted by us rather than QEMU itself. */
jobInfo->status = QEMU_DOMAIN_JOB_STATUS_FAILED;
return -2;
- } else if (jobInfo->status == QEMU_DOMAIN_JOB_STATUS_COMPLETED) {
+ } else if (jobInfo->status == QEMU_DOMAIN_JOB_STATUS_QEMU_COMPLETED) {
jobInfo->status = QEMU_DOMAIN_JOB_STATUS_FAILED;
return -1;
} else {
@@ -1564,6 +1565,10 @@ qemuMigrationWaitForCompletion(virQEMUDriverPtr driver,
if (VIR_ALLOC(priv->job.completed) == 0)
*priv->job.completed = *jobInfo;
+ if (asyncJob != QEMU_ASYNC_JOB_MIGRATION_OUT &&
+ jobInfo->status == QEMU_DOMAIN_JOB_STATUS_QEMU_COMPLETED)
+ jobInfo->status = QEMU_DOMAIN_JOB_STATUS_COMPLETED;
+
return 0;
}
--
1.8.3.1
1:51 a.m.
ping
On 11.04.2017 10:39, Nikolay Shirokovskiy wrote:
diff from v2:
============
1. Fix style issues.
2. Rework patch for fetching job info
(save logic to use temporary variable when drop vm lock)
3. Update disk stats when block jobs are canceled.
4. Adress a few more corner cases.
This patch series add disks stats to domain job info(stats) as
well as to migration completed event in case nbd scheme is used.
There is little nuisance with qcow2 disks (which is the main scenario
I guess) tied to the way qemu reports stats for this type of disks.
For example if we have 64G disk filled only to 1G then stats
start from 63G and will grow up to 64G on completion. The same way disk stats
will be reported by this patch.
I guess the better way to express the situation is to say we have 64G 'total',
and have 'processed' field grow from 0G to 1G, like in case of memory
stats. [1] is the example of completed memory stats of empty guest
domain, which show difference between processed and total.
There can be a workaround like getting initial blockjob offset position
as a zero but is is rather ugly and racy and like uses undocumented
behaviour.
[1] memory migration stats example
Memory processed: 3.307 MiB
Memory remaining: 0.000 B
Memory total: 1.032 GiB
The above is applied to qemu 2.6 at least.
Patches that were explicitly ACKed in previous review
(up to style issues) marked with A.
Nikolay Shirokovskiy (16):
qemu: drop code for VIR_DOMAIN_JOB_BOUNDED and timeRemaining
A qemu: introduce qemu domain job status
A qemu: introduce QEMU_DOMAIN_JOB_STATUS_POSTCOPY
A qemu: drop QEMU_MIGRATION_COMPLETED_UPDATE_STATS
A qemu: drop excessive zero-out in qemuMigrationFetchJobStatus
qemu: refactor fetching migration stats
A qemu: simplify getting completed job stats
qemu: fail querying destination migration statistics always
qemu: start all async job with job status active
qemu: introduce migrating job status
qemu: always get job condition on getting job stats
qemu: migrate: show disks stats on job info requests
qemu: support getting disks stats during stopping block jobs
qemu: migation: resolve race on getting job info and stopping block jobs
qemu: migrate: copy disks stats to completed job
qemu: migration: don't expose incomplete job as complete
src/qemu/qemu_blockjob.c | 1 +
src/qemu/qemu_domain.c | 38 +++++--
src/qemu/qemu_domain.h | 16 ++-
src/qemu/qemu_driver.c | 95 ++++++++--------
src/qemu/qemu_migration.c | 236 ++++++++++++++++++++++++++-------------
src/qemu/qemu_migration.h | 15 ++-
src/qemu/qemu_migration_cookie.c | 7 +-
src/qemu/qemu_monitor.c | 5 +-
src/qemu/qemu_monitor.h | 4 +-
src/qemu/qemu_monitor_json.c | 4 +-
src/qemu/qemu_process.c | 10 +-
tests/qemumonitorjsontest.c | 1 +
12 files changed, 273 insertions(+), 159 deletions(-)
4:47 a.m.
On 14.07.2017 12:20, Jiri Denemark wrote:
On Fri, Jul 14, 2017 at 09:51:48 +0300, Nikolay Shirokovskiy wrote:
> ping
Oops, I completely forgot about this series. But since it is a few
months old, could you resend the series after rebasing it to current
libvirt? I promise to review them while they are fresh.
Jirka
Hi, Jiri.
Unfortunately your email was lost in spam somehow and I would
not even notice it if not Max Nestratov.
I'm going to take a long vacation in a few days thus let's postpone the review
till the moment I'll return back.
Nikolay
2712
days inactive
2812
days old
19 comments
2 participants
participants (2)
-
Jiri Denemark -
Nikolay Shirokovskiy