Hi All,
I have few doubts around es JVM setting and GC scenarios. i have the
following cluster. i have 2 nodes in my cluster
Node 1 : memory 24 GB Heap space allocated : 12 GB
Node 2 : memory 24 GB Heap space allocated : 12 GB
No of Records will index in to ES per day is 750,000
Few days back i am getting following information from elastic search
frequently.
[2015-02-19 08:39:35,445][INFO ][monitor.jvm ] [node2]
[gc][young][794293][3926] duration [812ms], collections [1]/[1s], total
[812ms]/[5.9m], memory [8gb]->[8.2gb]/[11.9gb], all_pools {[young]
[33.1mb]->[64.1mb]/[133.1mb]}{[survivor] [16.6mb]->[16.6mb]/[16.6mb]}{[old]
[8gb]->[8.1gb]/[11.8gb]}
[2015-02-19 08:40:08,079][INFO ][monitor.jvm ] [node2]
[gc][young][794323][3972] duration [729ms], collections [1]/[1s], total
[729ms]/[6.1m], memory [3.6gb]->[3.8gb]/[11.9gb], all_pools {[young]
[3.6mb]->[53mb]/[133.1mb]}{[survivor] [16.6mb]->[16.6mb]/[16.6mb]}{[old]
[3.6gb]->[3.7gb]/[11.8gb]}
when i do some R & D around i got a point this will perform by
garbage collector young to sweep the memory. if i got gc long pauses my
records indexing process will interrupt i may lose some data.
ES suggesting no JVM tweaking required. so please suggest me where i
need to optimize the cluster to get rid of GC pauses based on my
configurations.
Thanks,
phani
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