Home | About | Sematext search-lucene.com search-hadoop.com
NEW: Monitor These Apps!
elasticsearch, apache solr, apache hbase, hadoop, redis, casssandra, amazon cloudwatch, mysql, memcached, apache kafka, apache zookeeper, apache storm, ubuntu, centOS, red hat, debian, puppet labs, java, senseiDB
 Search Hadoop and all its subprojects:

Switch to Threaded View
HBase >> mail # user >> G1 before/after GC time graph


Copy link to this message
-
G1 before/after GC time graph
Hi,

There was talk of G1 and HBase here over the past few days.  I wanted
to share a fresh and telling SPM graph showing G1 + some other params
in action:

Result first: https://apps.sematext.com/spm/s/wN0hKVixxX

This is what we had before:
  -XX:+HeapDumpOnOutOfMemoryError -XX:+UseG1GC
-XX:InitiatingHeapOccupancyPercent=35 -XX:G1ReservePercent=25

And then we added:
  -XX:MaxGCPauseMillis=200 -XX:NewRatio=4

I hope this helps.

Otis
--
HBase Performance Monitoring -- http://sematext.com/spm
NEW: Monitor These Apps!
elasticsearch, apache solr, apache hbase, hadoop, redis, casssandra, amazon cloudwatch, mysql, memcached, apache kafka, apache zookeeper, apache storm, ubuntu, centOS, red hat, debian, puppet labs, java, senseiDB