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Munin jstat__heap plugin for Oracle Java 7/8
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| #!/bin/bash | |
| # | |
| # Plugin for monitor JVM activity - Heap Usage - | |
| # | |
| # Usage: | |
| # | |
| # Symlink into /etc/munin/plugins/ and add the monitored | |
| # alias name like : | |
| # | |
| # ln -s /usr/share/munin/plugins/jstat__heap \ | |
| # /etc/munin/plugins/jstat_<jvm alias>_heap | |
| # This should, however, be given through autoconf and suggest. | |
| # | |
| # Requirements: | |
| # | |
| # You need to execute your Java program under jsvc provided by | |
| # http://jakarta.apache.org/commons/daemon/ | |
| # which enables you to run your Java program with specified | |
| # pid file with -pidfile option. | |
| # A Brief setup documentation is also available at | |
| # http://tomcat.apache.org/tomcat-5.5-doc/setup.html | |
| # | |
| # Target: | |
| # | |
| # Target Java Virtual Machine to monitor are: | |
| # Oracle JDK 7.0 (http://www.oracle.com/technetwork/java/javase/) | |
| # Oracle JDK 8.0 (http://www.oracle.com/technetwork/java/javase/) | |
| # | |
| # Parameters: | |
| # | |
| # config (required) | |
| # | |
| # Config variables: | |
| # | |
| # pidfilepath - Which file path use. Defaults to '/var/run/jsvc.pid' | |
| # javahome - Defaults to '/usr/local/java/jdk' | |
| # | |
| DefaultPidFile="/var/run/jsvc.pid" | |
| DefaultJavaHome="/usr/local/java/jdk" | |
| # | |
| # Environment Variables | |
| # | |
| if [ -z "${pidfilepath}" ]; then | |
| pidfilepath="${DefaultPidFile}" | |
| fi | |
| if [ -z "${graphtitle}" ]; then | |
| graphtitle="${pidfilepath}" | |
| fi | |
| if [ -z "${javahome}" ]; then | |
| JAVA_HOME="${DefaultJavaHome}" | |
| else | |
| JAVA_HOME="${javahome}" | |
| fi | |
| export JAVA_HOME | |
| # | |
| # Functions | |
| # | |
| chk_jdk() | |
| { | |
| Version=`${JAVA_HOME}/bin/java -version 2>&1 | egrep '^java version' | awk '{print $3}' | sed -e 's/\"//g' | cut -d'_' -f 1` | |
| if [ "${Version}" != "1.7.0" ]; then | |
| JDK_TYPE="jdk8" | |
| else | |
| JDK_TYPE="jdk7" | |
| fi | |
| } | |
| config_common() | |
| { | |
| echo "graph_title Heap Usage" $graphtitle | |
| echo "graph_args --base 1024 -l 0" | |
| echo "graph_vlabel Heap Usage(Bytes)" | |
| echo "graph_info Heap Usage" | |
| echo "graph_category JVM" | |
| } | |
| config_oracle_jdk7() | |
| { | |
| config_common | |
| echo "Eden_Used.label Eden_Used" | |
| echo "Eden_Free.label Eden_Free" | |
| echo "Survivor0_Used.label Survivor0_Used" | |
| echo "Survivor0_Free.label Survivor0_Free" | |
| echo "Survivor1_Used.label Survivor1_Used" | |
| echo "Survivor1_Free.label Survivor1_Free" | |
| echo "Old_Used.label Old_Used" | |
| echo "Old_Free.label Old_Free" | |
| echo "Permanent_Used.label Permanent_Used" | |
| echo "Permanent_Free.label Permanent_Free" | |
| echo "Eden_Used.draw AREA" | |
| echo "Eden_Free.draw STACK" | |
| echo "Survivor0_Used.draw STACK" | |
| echo "Survivor0_Free.draw STACK" | |
| echo "Survivor1_Used.draw STACK" | |
| echo "Survivor1_Free.draw STACK" | |
| echo "Old_Used.draw STACK" | |
| echo "Old_Free.draw STACK" | |
| echo "Permanent_Used.draw STACK" | |
| echo "Permanent_Free.draw STACK" | |
| } | |
| config_oracle_jdk8() | |
| { | |
| config_common | |
| echo "Eden_Used.label Eden_Used" | |
| echo "Eden_Free.label Eden_Free" | |
| echo "Survivor0_Used.label Survivor0_Used" | |
| echo "Survivor0_Free.label Survivor0_Free" | |
| echo "Survivor1_Used.label Survivor1_Used" | |
| echo "Survivor1_Free.label Survivor1_Free" | |
| echo "Old_Used.label Old_Used" | |
| echo "Old_Free.label Old_Free" | |
| echo "Metaspace_Used.label Metaspace_Used" | |
| echo "Metaspace_Free.label Metaspace_Free" | |
| echo "Compressed_Class_Space_Capacity_Used.label Compressed_Class_Space_Capacity_Used" | |
| echo "Compressed_Class_Space_Capacity_Free.label Compressed_Class_Space_Capacity_Free" | |
| echo "Eden_Used.draw AREA" | |
| echo "Eden_Free.draw STACK" | |
| echo "Survivor0_Used.draw STACK" | |
| echo "Survivor0_Free.draw STACK" | |
| echo "Survivor1_Used.draw STACK" | |
| echo "Survivor1_Free.draw STACK" | |
| echo "Old_Used.draw STACK" | |
| echo "Old_Free.draw STACK" | |
| echo "Metaspace_Used.draw STACK" | |
| echo "Metaspace_Free.draw STACK" | |
| echo "Compressed_Class_Space_Capacity_Used.draw STACK" | |
| echo "Compressed_Class_Space_Capacity_Free.draw STACK" | |
| } | |
| print_oracle_jdk7_stats() | |
| { | |
| ${JAVA_HOME}/bin/jstat -gc ${PidNum} | tail -1 | awk \ | |
| '{\ | |
| S0C = $1; \ | |
| S1C = $2; \ | |
| S0U = $3; \ | |
| S1U = $4; \ | |
| EC = $5; \ | |
| EU = $6; \ | |
| OC = $7; \ | |
| OU = $8; \ | |
| PC = $9; \ | |
| PU = $10; \ | |
| \ | |
| S0F = S0C - S0U; \ | |
| S1F = S1C - S1U; \ | |
| EF = EC - EU; \ | |
| OF = OC - OU; \ | |
| PF = PC - PU; \ | |
| \ | |
| print "Eden_Used.value " EU * 1024; \ | |
| print "Eden_Free.value " EF * 1024; \ | |
| print "Survivor0_Used.value " S0U * 1024; \ | |
| print "Survivor0_Free.value " S0F * 1024; \ | |
| print "Survivor1_Used.value " S1U * 1024; \ | |
| print "Survivor1_Free.value " S1F * 1024; \ | |
| print "Old_Used.value " OU * 1024; \ | |
| print "Old_Free.value " OF * 1024; \ | |
| print "Permanent_Used.value " PU * 1024; \ | |
| print "Permanent_Free.value " PF * 1024; \ | |
| }' | |
| } | |
| print_oracle_jdk8_stats() | |
| { | |
| ${JAVA_HOME}/bin/jstat -gc ${PidNum} | tail -1 | awk \ | |
| '{\ | |
| S0C = $1; \ | |
| S1C = $2; \ | |
| S0U = $3; \ | |
| S1U = $4; \ | |
| EC = $5; \ | |
| EU = $6; \ | |
| OC = $7; \ | |
| OU = $8; \ | |
| MC = $9; \ | |
| MU = $10; \ | |
| CCSC = $11; \ | |
| CCSU = $12; \ | |
| \ | |
| S0F = S0C - S0U; \ | |
| S1F = S1C - S1U; \ | |
| EF = EC - EU; \ | |
| OF = OC - OU; \ | |
| MF = MC - MU; \ | |
| CCSF = CCSC - CCSU; \ | |
| \ | |
| print "Eden_Used.value " EU * 1024; \ | |
| print "Eden_Free.value " EF * 1024; \ | |
| print "Survivor0_Used.value " S0U * 1024; \ | |
| print "Survivor0_Free.value " S0F * 1024; \ | |
| print "Survivor1_Used.value " S1U * 1024; \ | |
| print "Survivor1_Free.value " S1F * 1024; \ | |
| print "Old_Used.value " OU * 1024; \ | |
| print "Old_Free.value " OF * 1024; \ | |
| print "Metaspace_Used.value " MU * 1024; \ | |
| print "Metaspace_Free.value " MF * 1024; \ | |
| print "Compressed_Class_Space_Capacity_Used.value " CCSU * 1024; \ | |
| print "Compressed_Class_Space_Capacity_Free.value " CCSF * 1024; \ | |
| }' | |
| } | |
| # | |
| # common for all argument | |
| # | |
| PidNum=`cat ${pidfilepath}` | |
| chk_jdk | |
| # | |
| # autoconf | |
| # | |
| if [ "$1" = "autoconf" ]; then | |
| if [ ! -x "${JAVA_HOME}/bin/jstat" ]; then | |
| echo "no (No jstat found in ${JAVA_HOME}/bin)" | |
| exit 1 | |
| fi | |
| if [ ! -f "${pidfilepath}" -o ! -r "${pidfilepath}" ]; then | |
| echo "no (No such file ${pidfilepath} or cannot read ${pidfilepath}" | |
| exit 1 | |
| fi | |
| echo "yes" | |
| exit 0 | |
| fi | |
| # | |
| # config | |
| # | |
| if [ "$1" = "config" ]; then | |
| if [ "${JDK_TYPE}" == "jdk8" ]; then | |
| config_oracle_jdk8 | |
| else | |
| config_oracle_jdk7 | |
| fi | |
| exit 0 | |
| fi | |
| # | |
| # Main | |
| # | |
| if [ "${JDK_TYPE}" == "jdk8" ]; then | |
| print_oracle_jdk8_stats | |
| else | |
| print_oracle_jdk7_stats | |
| fi |
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