[libvirt] [PATCH v2 14/15] qemu: conf: add option for tuning debug logging level
From: Prasanna Kumar Kalever <prasanna.kalever(a)redhat.com>
This helps in selecting log level of the gluster gfapi, output to stderr.
The option is 'gluster_debug_level', can be tuned by editing
'/etc/libvirt/qemu.conf'
Debug levels ranges 0-9, with 9 being the most verbose, and 0
representing no debugging output. The default is the same as it was
before, which is a level of 4. The current logging levels defined in
the gluster gfapi are:
0 - None
1 - Emergency
2 - Alert
3 - Critical
4 - Error
5 - Warning
6 - Notice
7 - Info
8 - Debug
9 - Trace
Signed-off-by: Prasanna Kumar Kalever <prasanna.kalever(a)redhat.com>
Signed-off-by: Peter Krempa <pkrempa(a)redhat.com>
---
src/qemu/libvirtd_qemu.aug | 3 +++
src/qemu/qemu.conf | 20 ++++++++++++++++++++
src/qemu/qemu_conf.c | 3 +++
src/qemu/qemu_conf.h | 1 +
4 files changed, 27 insertions(+)
diff --git a/src/qemu/libvirtd_qemu.aug b/src/qemu/libvirtd_qemu.aug
index 73ebeda..f3cc9e6 100644
--- a/src/qemu/libvirtd_qemu.aug
+++ b/src/qemu/libvirtd_qemu.aug
@@ -106,6 +106,8 @@ module Libvirtd_qemu =
let nvram_entry = str_array_entry "nvram"
+ let gluster_debug_level_entry = int_entry "gluster_debug_level"
+
(* Each entry in the config is one of the following ... *)
let entry = default_tls_entry
| vnc_entry
@@ -121,6 +123,7 @@ module Libvirtd_qemu =
| network_entry
| log_entry
| nvram_entry
+ | gluster_debug_level_entry
let comment = [ label "#comment" . del /#[ \t]*/ "# " . store
/([^ \t\n][^\n]*)?/ . del /\n/ "\n" ]
let empty = [ label "#empty" . eol ]
diff --git a/src/qemu/qemu.conf b/src/qemu/qemu.conf
index c4fcb6d..070d37b 100644
--- a/src/qemu/qemu.conf
+++ b/src/qemu/qemu.conf
@@ -645,3 +645,23 @@
# rollover when a size limit is hit.
#
#stdio_handler = "logd"
+
+# Qemu gluster libgfapi log level, debug levels are 0-9, with 9 being the
+# most verbose, and 0 representing no debugging output.
+#
+# The current logging levels defined in the gluster GFAPI are:
+#
+# 0 - None
+# 1 - Emergency
+# 2 - Alert
+# 3 - Critical
+# 4 - Error
+# 5 - Warning
+# 6 - Notice
+# 7 - Info
+# 8 - Debug
+# 9 - Trace
+#
+# Defaults to 4
+#
+# gluster_debug_level = 9
diff --git a/src/qemu/qemu_conf.c b/src/qemu/qemu_conf.c
index 109668b..0ed88f5 100644
--- a/src/qemu/qemu_conf.c
+++ b/src/qemu/qemu_conf.c
@@ -311,6 +311,7 @@ virQEMUDriverConfigPtr virQEMUDriverConfigNew(bool privileged)
cfg->seccompSandbox = -1;
cfg->logTimestamp = true;
+ cfg->glusterDebugLevel = 4;
cfg->stdioLogD = true;
#ifdef DEFAULT_LOADER_NVRAM
@@ -794,6 +795,8 @@ int virQEMUDriverConfigLoadFile(virQEMUDriverConfigPtr cfg,
goto cleanup;
}
}
+ if (virConfGetValueUInt(conf, "gluster_debug_level",
&cfg->glusterDebugLevel) < 0)
+ goto cleanup;
ret = 0;
diff --git a/src/qemu/qemu_conf.h b/src/qemu/qemu_conf.h
index 12b2661..f6e3257 100644
--- a/src/qemu/qemu_conf.h
+++ b/src/qemu/qemu_conf.h
@@ -192,6 +192,7 @@ struct _virQEMUDriverConfig {
virFirmwarePtr *firmwares;
size_t nfirmwares;
+ unsigned int glusterDebugLevel;
};
/* Main driver state */
--
2.10.2