The xl toolstack has replaced xm in recent versions of Xen. This patch updates
action commands using xm syntax to xl syntax. In addition, support for non-Xen
environments has been added by testing for a Xen specific file
(/proc/xen/privcmd) and branching to a non-Xen command if not found.
Summary of changes:
- Support both Xen and non-Xen hypervisors (kvm)
- Replace xm commands with xl commands
- Document reserved characters in 'action' field
- Syntax and legibility cleanup
- Add /sbin and /bin to <path>
- Use TotalCPUTime script from FC21 for non-Xen environments
---
vhostmd.xml | 101 ++++++++++++++++++++++++++++++++++++++++++++++++------------
1 file changed, 82 insertions(+), 19 deletions(-)
diff --git a/vhostmd.xml b/vhostmd.xml
index 6f56b58..daf7545 100644
--- a/vhostmd.xml
+++ b/vhostmd.xml
@@ -3,7 +3,7 @@
<!--
-Copyright (C) 2008 Novell, Inc.
+Copyright (C) 2014 SUSE, Inc.
Configuration file for virtual host metrics daemon (vhostmd).
@@ -18,6 +18,12 @@ A metric's value is set to the output produced by executing its action.
the vm currently under inspection is substituted for NAME. Only useful
within the vm element.
+NOTE - 'action' must be a valid shell builtin, script or external
+command found in the path specified by the global <path> element.
+When chaining commands, '&', '<' and '>' are reserved characters,
+therefore '&', '<' and '>' must be used instead. For example,
+the logical && operator must be replaced with "&&".
+
-->
<vhostmd>
@@ -28,52 +34,74 @@ within the vm element.
<size unit="k">256</size>
</disk>
5
- <path>/usr/bin:/usr/sbin:/usr/share/vhostmd/scripts</path>
+ <path>/usr/sbin:/sbin:/usr/bin:/bin:/usr/share/vhostmd/scripts</path>
<transport>vbd</transport>
- <!-- <transport>xenstore</transport> -->
</globals>
<metrics>
<metric type="string" context="host">
<name>HostName</name>
- <action>virsh CONNECT hostname | tr -d '[:space:]'</action>
+ <action>
+ virsh CONNECT hostname | tr -d '[:space:]'
+ </action>
</metric>
<metric type="string" context="host">
<name>VirtualizationVendor</name>
- <action>/bin/rpm -q --info xen | grep Vendor: | \
- awk '{print substr($0, index($0,$5)) }'</action>
+ <action>
+ [ -f /proc/xen/privcmd ] && RPM="xen" || RPM="libvirt"; \
+ rpm -q --queryformat "%{VENDOR}\n" $RPM | sort -u | sed -e 's/<.*//' -e 's/ *$//'
+ </action>
</metric>
<metric type="string" context="host">
<name>VirtualizationProductInfo</name>
- <action>xm info | gawk '/^xen_(major|minor|extra)/ {print $3}' | \
- tr -d . | tr '[:space:]' .</action>
+ <action>
+ [ -f /proc/xen/privcmd ] && xl info | \
+ awk '/^xen_(major|minor|extra)/ {print $3}' | sed -e 'N;s/\n/./' -e 'N;s/\n//' || \
+ rpm -q --queryformat "%{VERSION}-%{RELEASE}\n" libvirt | sort -u
+ </action>
</metric>
<metric type="uint32" context="host">
<name>TotalPhyCPUs</name>
- <action>xm info | gawk '/^nr_cpus/ {print $3}'</action>
+ <action>
+ virsh nodeinfo | awk '/^CPU\(s\)/ {print $2}'
+ </action>
</metric>
<metric type="uint32" context="host">
<name>NumCPUs</name>
- <action>xm info | gawk '/^nr_cpus/ {print $3}'</action>
+ <action>
+ virsh nodeinfo | awk '/^CPU\(s\)/ {print $2}'
+ </action>
</metric>
<metric type="uint64" context="host">
<name>TotalPhyMem</name>
- <action>xm info | gawk '/^total_memory/ {print $3}'</action>
+ <action>
+ echo $((`virsh nodeinfo | awk '/^Memory/ {print $3}'` / 1024))
+ </action>
</metric>
<metric type="uint64" context="host">
<name>UsedMem</name>
- <action>echo "$((`xentop -b -i 1 | gawk '/Domain-0/ {print $5}'` / 1024))"</action>
+ <action>
+ [ -f /proc/xen/privcmd ] && echo "$((`xentop -b -i 1 | awk '/Domain-0/ {print $5}'` / 1024))" || \
+ free | egrep -i '^[[:space:]]*(.*buffers/cache:)' | awk '{ printf "%d\n", $3/1024; }'
+ </action>
</metric>
<metric type="uint64" context="host">
<name>FreeMem</name>
- <action>xm info | gawk '/^max_free_memory/ {print $3}'</action>
+ <action>
+ [ -f /proc/xen/privcmd ] && xl info | awk '/^free_memory/ {print $3}' || \
+ free | egrep -i '^[[:space:]]*(.*buffers/cache:)' | awk '{ printf "%d\n", $4/1024; }'
+ </action>
</metric>
<metric type="uint64" context="host">
<name>PagedInMemory</name>
- <action>echo "$((`vmstat -s | gawk '/pages paged in/ {print $1}'` / 1024))"</action>
+ <action>
+ vmstat -s | awk '/pages paged in/ {printf "%d\n", $1 / 1024 * $(getconf PAGESIZE) / 1024;}'
+ </action>
</metric>
<metric type="uint64" context="host">
<name>PagedOutMemory</name>
- <action>echo "$((`vmstat -s | gawk '/pages paged out/ {print $1}'` / 1024))"</action>
+ <action>
+ vmstat -s | awk '/pages paged out/ {printf "%d\n", $1 / 1024 * $(getconf PAGESIZE) / 1024;}'
+ </action>
</metric>
<metric type="group" context="host">
<name>PageRates</name>
@@ -83,13 +111,48 @@ within the vm element.
</metric>
<metric type="real64" context="host">
<name>TotalCPUTime</name>
- <action>virsh CONNECT dominfo 0 | sed 's/: */:/' | \
- gawk -F: '/CPU time/ {print $2;}'</action>
+ <action>
+ [ -f /proc/xen/privcmd ] && xl list | awk '/^Domain-0/ {print $6}' || \
+ awk '
+ function user_hz( hz)
+ {
+ cmd = "getconf CLK_TCK";
+ cmd | getline;
+ hz = $1;
+ close(cmd);
+
+ return hz;
+ }
+
+ BEGIN {
+ USER_HZ = user_hz();
+ TotalCPUTime = 0;
+
+ while ( 0 < ( getline < "/proc/stat" ) )
+ {
+ if ( "cpu" == $1 )
+ {
+ TotalCPUTime = $2 + $3 + $4;
+
+ break;
+ }
+ }
+ close("/proc/stat");
+
+ #printf "USER_HZ = %d\n", USER_HZ | "cat 1>&2";
+ TotalCPUTime /= USER_HZ;
+ printf "%f\n", TotalCPUTime;
+
+ #close("cat 1>&2");
+ }'
+ </action>
</metric>
<metric type="real64" context="vm">
<name>TotalCPUTime</name>
- <action>virsh CONNECT dominfo NAME | sed 's/: */:/' | \
- gawk -F: '/CPU time/ {print $2;}'</action>
+ <action>
+ virsh CONNECT dominfo NAME | sed 's/: */:/' | \
+ awk -F: '/CPU time/ {print $2;}' | sed 's/s//'
+ </action>
</metric>
</metrics>
</vhostmd>
--
1.8.4.5
--
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