On 7/15/20 3:18 AM, Keqian Zhu wrote:
For that Qemu supports returning incoming migration info since its commit 65ace0604551 (migration: add postcopy total blocktime into query-migrate),
It is worth saying that this QEMU commit that decoupled the RAM status from the active migration status is live since early 2018: $ git show 65ace0604551 commit 65ace060455122a461cdc9302238b914084bcd42 Author: Alexey Perevalov <a.perevalov@samsung.com> Date: Thu Mar 22 21:17:27 2018 +0300 migration: add postcopy total blocktime into query-migrate $ git describe 65ace0604551 v2.12.0-6-g65ace06045 I am not sure if we care about removing a migration failure check for QEMU 2.12 when we're waiting for 5.1 to come out. My guess is that we do care, but not enough to demand a "if (QEMU <= 2.12)" in this logic. I'll also assume that the existing failure check is doing more harm than good nowadays, so: Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com>
which may contains active status, but without RAM info. Drop this binding relationship check in libvirt.
Signed-off-by: Keqian Zhu <zhukeqian1@huawei.com> ---
src/qemu/qemu_monitor_json.c | 88 +++++++++++++++++------------------- 1 file changed, 42 insertions(+), 46 deletions(-)
diff --git a/src/qemu/qemu_monitor_json.c b/src/qemu/qemu_monitor_json.c index d808c4b55b..ba8e340742 100644 --- a/src/qemu/qemu_monitor_json.c +++ b/src/qemu/qemu_monitor_json.c @@ -3547,56 +3547,52 @@ qemuMonitorJSONGetMigrationStatsReply(virJSONValuePtr reply, case QEMU_MONITOR_MIGRATION_STATUS_PRE_SWITCHOVER: case QEMU_MONITOR_MIGRATION_STATUS_DEVICE: ram = virJSONValueObjectGetObject(ret, "ram"); - if (!ram) { - virReportError(VIR_ERR_INTERNAL_ERROR, "%s", - _("migration was active, but no RAM info was set")); - return -1; - } + if (ram) { + if (virJSONValueObjectGetNumberUlong(ram, "transferred", + &stats->ram_transferred) < 0) { + virReportError(VIR_ERR_INTERNAL_ERROR, "%s", + _("migration was active, but RAM 'transferred' " + "data was missing")); + return -1; + } + if (virJSONValueObjectGetNumberUlong(ram, "remaining", + &stats->ram_remaining) < 0) { + virReportError(VIR_ERR_INTERNAL_ERROR, "%s", + _("migration was active, but RAM 'remaining' " + "data was missing")); + return -1; + } + if (virJSONValueObjectGetNumberUlong(ram, "total", + &stats->ram_total) < 0) { + virReportError(VIR_ERR_INTERNAL_ERROR, "%s", + _("migration was active, but RAM 'total' " + "data was missing")); + return -1; + }
- if (virJSONValueObjectGetNumberUlong(ram, "transferred", - &stats->ram_transferred) < 0) { - virReportError(VIR_ERR_INTERNAL_ERROR, "%s", - _("migration was active, but RAM 'transferred' " - "data was missing")); - return -1; - } - if (virJSONValueObjectGetNumberUlong(ram, "remaining", - &stats->ram_remaining) < 0) { - virReportError(VIR_ERR_INTERNAL_ERROR, "%s", - _("migration was active, but RAM 'remaining' " - "data was missing")); - return -1; - } - if (virJSONValueObjectGetNumberUlong(ram, "total", - &stats->ram_total) < 0) { - virReportError(VIR_ERR_INTERNAL_ERROR, "%s", - _("migration was active, but RAM 'total' " - "data was missing")); - return -1; - } + if (virJSONValueObjectGetNumberDouble(ram, "mbps", &mbps) == 0 && + mbps > 0) { + /* mpbs from QEMU reports Mbits/s (M as in 10^6 not Mi as 2^20) */ + stats->ram_bps = mbps * (1000 * 1000 / 8); + }
- if (virJSONValueObjectGetNumberDouble(ram, "mbps", &mbps) == 0 && - mbps > 0) { - /* mpbs from QEMU reports Mbits/s (M as in 10^6 not Mi as 2^20) */ - stats->ram_bps = mbps * (1000 * 1000 / 8); + if (virJSONValueObjectGetNumberUlong(ram, "duplicate", + &stats->ram_duplicate) == 0) + stats->ram_duplicate_set = true; + ignore_value(virJSONValueObjectGetNumberUlong(ram, "normal", + &stats->ram_normal)); + ignore_value(virJSONValueObjectGetNumberUlong(ram, "normal-bytes", + &stats->ram_normal_bytes)); + ignore_value(virJSONValueObjectGetNumberUlong(ram, "dirty-pages-rate", + &stats->ram_dirty_rate)); + ignore_value(virJSONValueObjectGetNumberUlong(ram, "page-size", + &stats->ram_page_size)); + ignore_value(virJSONValueObjectGetNumberUlong(ram, "dirty-sync-count", + &stats->ram_iteration)); + ignore_value(virJSONValueObjectGetNumberUlong(ram, "postcopy-requests", + &stats->ram_postcopy_reqs)); }
- if (virJSONValueObjectGetNumberUlong(ram, "duplicate", - &stats->ram_duplicate) == 0) - stats->ram_duplicate_set = true; - ignore_value(virJSONValueObjectGetNumberUlong(ram, "normal", - &stats->ram_normal)); - ignore_value(virJSONValueObjectGetNumberUlong(ram, "normal-bytes", - &stats->ram_normal_bytes)); - ignore_value(virJSONValueObjectGetNumberUlong(ram, "dirty-pages-rate", - &stats->ram_dirty_rate)); - ignore_value(virJSONValueObjectGetNumberUlong(ram, "page-size", - &stats->ram_page_size)); - ignore_value(virJSONValueObjectGetNumberUlong(ram, "dirty-sync-count", - &stats->ram_iteration)); - ignore_value(virJSONValueObjectGetNumberUlong(ram, "postcopy-requests", - &stats->ram_postcopy_reqs)); - disk = virJSONValueObjectGetObject(ret, "disk"); if (disk) { rc = virJSONValueObjectGetNumberUlong(disk, "transferred",