Elasticsearch java tuning

Elastic Stack Elasticsearch
1

Hi,

While running a single node ELK 5.6.2 recently I encountered JAVA memory heap error and it crashed the elasticsearch process.

Upon restarting elasticsearch I can see following warning messages. Can someone pls confirm in which files these parameters are configured ?

[2017-10-23T06:38:56,872][WARN ][o.e.b.BootstrapChecks ] [HMgkdpb] max file descriptors [4096] for elasticsearch process is too low, increase to at least [65536]
[2017-10-23T06:38:56,872][WARN ][o.e.b.BootstrapChecks ] [HMgkdpb] max number of threads [1024] for user [elasticsearch] is too low, increase to at least [2048]
[2017-10-23T06:38:56,872][WARN ][o.e.b.BootstrapChecks ] [HMgkdpb] max virtual memory areas vm.max_map_count [65530] is too low, increase to at least [262144]

Regards,
-Manish

2

What does the OOM error show?

3

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