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Code Issues Releases Wiki Activity

* Switch to zsh (used to be bash)

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* Fix to remove dots from vserver names (replace them with underscores;
   dots confuse munin)
 * Drop support for old (pre 2.6.19) kernels
 * Replace cat | grep | cut pipelines with a single sed each
 * Add env.stripdomain (a domain name to strip from the end of vserver names
   when generating labels; be sure to include the leading dot)
This commit is contained in:
András Korn 2015-09-20 20:15:53 +02:00
parent b02fe4e8e7
commit c9e77c391a
1 changed files with 37 additions and 24 deletions
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61
plugins/virtualization/vserver/vserver_jiffies
View file

@ -1,7 +1,19 @@
#!/bin/bash
#!/bin/zsh
#
# Created by Jan Rękorajski <baggins@pld-linux.org> based on vserver_cpu_ plugin.
#
# Obtained from https://github.com/munin-monitoring/contrib.git
#
# Changes by Andras Korn, 2015:
#
# * Convert to zsh
# * Fix to remove dots from vserver names (replace them with _)
# * Drop support for old (pre 2.6.19) kernels
# * Replace cat | grep | cut pipelines with a single sed
# * Add env.stripdomain (a domain name to strip from the
# end of vserver names when generating labels; be sure
# to include the leading dot)
#
# Graph Vserver cumulative cpu usage stats
#
# Configuration variables
@ -11,47 +23,45 @@
#
# see vserver_resources for example uses of configuration files
VSERVERS="$vservers"
VSERVERS=(${=vservers})
STRIPDOMAIN="$stripdomain"
INFO=(`sed 's/.*:\t//' /proc/virtual/info 2>/dev/null || echo '<none>'`)
INFO=($(sed 's/.*:\t//' /proc/virtual/info 2>/dev/null || echo '<none>'))
KCIN="$[ 16#${INFO[2]} ]";
# If this is 1, then VCI_SPACES is present in the kernel (new in 2.6.19)
if [ $[ (KCIN >> 10) & 1 ] -eq 1 ]
then
NAMELOC="nsproxy"
else
NAMELOC="cvirt"
fi
NAMELOC="nsproxy"
if [ -z "$VSERVERS" ] ; then
XIDS=`find /proc/virtual/* -type d -exec basename {} \;`
if [[ -z "$VSERVERS" ]] ; then
cd /proc/virtual
XIDS=($(echo *(/)))
else
# it's really more performant to specify vservers by ids or by linking but not in the configuration-file by name
XIDS=""
for i in $VSERVERS ; do
if [ -d /proc/virtual/$i ] ; then
XIDS="${XIDS}${i} "
for i in $VSERVERS[@] ; do
if [[ -d /proc/virtual/$i ]] ; then
XIDS=($XIDS[@] $i)
else
for j in `find /proc/virtual/* -type d -exec basename {} \;` ; do
if [ "$i" = "`cat /proc/virtual/$j/$NAMELOC |grep NodeName |cut -f2`" ] ; then
XIDS="${XIDS}${j} "
for j in /proc/virtual/*(/) -type d; do
if [[ "$i" = $(sed -n '/NodeName/s/^NodeName:[[:space:]]*//p' $j/$NAMELOC) ]]; then
XIDS=($XIDS[@] ${j:t})
fi
done
fi
done
fi
if [ "$1" = "config" ]; then
if [[ "$1" = "config" ]]; then
echo 'graph_category Virtualization'
echo 'graph_args --base 1000'
echo 'graph_title Vserver cpu usage'
echo 'graph_vlabel jiffies used per ${graph_period}'
echo 'graph_info Shows jiffies used on each vserver.'
for i in $XIDS ; do
LABEL=`grep NodeName /proc/virtual/$i/$NAMELOC | cut -f2`
NAME=`echo $LABEL | tr '-' '_'`
for i in $XIDS[@]; do
LABEL=$(sed -n '/NodeName/s/^NodeName:[[:space:]]*//p' /proc/virtual/$i/$NAMELOC)
LABEL=${LABEL%$STRIPDOMAIN}
NAME=${LABEL//./_}
NAME=${NAME//-/_}
echo "${NAME}_hold.label on hold for cpu on $LABEL"
echo "${NAME}_hold.info on hold for cpu on $LABEL."
echo "${NAME}_hold.type COUNTER"
@ -65,8 +75,11 @@ if [ "$1" = "config" ]; then
exit 0
fi
for i in $XIDS ; do
NAME=`grep NodeName /proc/virtual/$i/$NAMELOC | cut -f2 | tr '-' '_'`
for i in $XIDS[@]; do
LABEL=$(sed -n '/NodeName/s/^NodeName:[[:space:]]*//p' /proc/virtual/$i/$NAMELOC)
LABEL=${LABEL%$STRIPDOMAIN}
NAME=${LABEL//./_}
NAME=${NAME//-/_}
awk -v name=$NAME -v u=0 -v s=0 -v h=0 '
/^cpu [0-9]+:/ { u+=$3; s+=$4; h+=$5}
END {