Java6 is pretty ancient these days. Definitely move to 7 or 8. Also there have been several improvements with later releases of elasticsearch also.
If you're hitting OOM problems it possible that one of your caches is unbound. One that can cause issues is the field data cache, but normally the query circuit breaker should kick in before oom does. Have a look at this doc. http://www.elasticsearch.org/guide/en/elasticsearch/guide/current/_limiting_memory_usage.html It sounds like you have a fairly busy cluster. I would definitely be looking at refresh interval. This doc gives you an idea of the impact. http://blog.sematext.com/2013/07/08/elasticsearch-refresh-interval-vs-indexing-performance/ I know how unfun it can be to have an unstable cluster. I hope you can resolve the issues. Cheers, Rob On Wednesday, November 19, 2014 9:15:33 PM UTC+1, Mark Walkom wrote: > > Java 6 is not good, can you change that to 7 (or even 8)? > > On 20 November 2014 02:55, 熊贻青 <[email protected] <javascript:>> wrote: > >> Hi Robert, >> Thanks for the detailed info. Here is what we have: 10 data only nodes, >> 192g ram each, 64g given to ES, java6. We have more than 40 indices >> actively receiving new data. Max indexing rate for a single index is 3k/s, >> total rate us around 50k. We still found timeout occasionally, but it >> doesn’t seems GC related (according to GC log info). It seems we have >> similar amount of data :). You do raise an interesting point. I could test >> a smaller heap to see if I could get better write performance. >> One more question, have you got any OOM issue with some huge query? >> >> Thanks! >> Jaguar >> >> -- >> You received this message because you are subscribed to the Google Groups >> "elasticsearch" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to [email protected] <javascript:>. >> To view this discussion on the web visit >> https://groups.google.com/d/msgid/elasticsearch/CAP0hgQ323gYKa6SnvvYOHw2cGy2KE7YWmJz1m%2BJOVZ6CSh8ArA%40mail.gmail.com >> >> <https://groups.google.com/d/msgid/elasticsearch/CAP0hgQ323gYKa6SnvvYOHw2cGy2KE7YWmJz1m%2BJOVZ6CSh8ArA%40mail.gmail.com?utm_medium=email&utm_source=footer> >> . >> >> For more options, visit https://groups.google.com/d/optout. >> > > -- You received this message because you are subscribed to the Google Groups "elasticsearch" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/elasticsearch/8ce70f9f-d0de-4cc9-b30f-34fbbc6d07f2%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
