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Monitor report generator using misc logs.

Project description

This tool generates a monitor report with charts from miscellaneous log files:

  • JVM Garbage collector logging (gc.log)

  • Java Virtual Machine logging (jvm.log)

  • JBoss threads logging (webthreads.log)

  • NuxeoDS Data source usage (nuxeo-ds.log)

  • jmxstat output (jmxstat.log)

  • Sysstat sar logging, cpu and disk activity (sysstat-sar.log)

  • PostgreSQL logs (pgsql.log)

  • PostgreSQL vacuum output (vacuum.log)

    View a report example.


  • python
  • python-docutils
  • gnuplot >= 4.2 (with png support)
  • sysstat sar, same version used during the monitor.
  • pgFouine for PostgreSQL log and vacuum analysis

On Debian:

sudo aptitude install gnuplot sysstat python-docutils pgfouine


The tool expects that all the logs are in the same directory and produce a detail report: [options] LOG_PATH REPORT_PATH

The scripts can be used from an hudson job to scan other jobs and produces logchart monitor reports.

How to setup monitoring on jboss/tomcat

The Nuxeo script generates all the logs.

Here are some details on how to do it by hand.

Garbage collector monitoriing

Using the jvm verbose:gc option:

JAVA_OPTS="$JAVA_OPTS -Xloggc:$JBOSS_HOME/server/default/log/gc.log  -verbose:gc -XX:+PrintGCDetails -XX:+PrintGCTimeStamps"

Disk and systeme monitoring

Using sysstat sar utility, just run something like:

sar -d -o $JBOSS_HOME/server/default/log/sysstat-sar.log 5 720 >/dev/null 2>&1 &

This will monitor the activity every 5s during 1h.

JBoss logging monitor

Check documentation

JMX logging

Using jmxstat:

jmxstat localhost:1089 --contention  "Catalina:type=Manager,path=/nuxeo,host=localhost[activeSessions]"  > jmxstat.log 2>&1 &

PostgreSQL monitoring

Visit the pgFouine tutorial to setup properly your PostgreSQL instance

For instance log only request slower than 100ms:

log_min_duration_statement = 100

PostgreSQL vacuum analysis

Just catch the vacuum output:

vacuumdb  -fzv database-name &> vacuum.log

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