I'm currently using ElasticSearch 0.19.11 deployed into CentOS 5.7 (kernel
2.6.18-274.18.1.el5xen) boxes having 4GB or RAM/4 cores. The environment
contains 2 such boxes and ElasticSearch is not clustered (effectively the
two being independent). From time to time (once every approximately 3 or 4
days) one of the machines (apparently in a random order) heavily degrades
it's performance up to full CPU consumption.
The Java process running the ElasticSeach is configured with: "-Xms1g
-Xmx1g -Xss256k -XX:+UseParNewGC -XX:+UseConcMarkSweepGC
parameters.* *Each instance has a single index and contains ~1K documents.
Attached are some facts observed while experiencing the high CPU
consumption: jstat.txt, jstack.txt, top.txt, hotthreads.txt and the
elasticsearch.yml config we are using.
Can anyone help?
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