Hi, Following the advice on different blog post on production setup for Elasticsearch, I'm using -Xms256m -Xmx256 and set bootstrap.mlockall to True. My guess was that the after restart, my Elasticsearch process would use about 256m of ram, and that it's memory usage would remain quasi-constant …

This is what it does - http://linux.die.net/man/2/mlockall Basically it prevents the memory being moved to swap. Regards, Mark Walkom Infrastructure Engineer Campaign Monitor email: markw@campaignmonitor.com web: www.campaignmonitor.com On 30 January 2014 00:01, briche arnaud briche.arnaud@g…

Also mlockall may not be supported depending on your OS. -- 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 elasticsearch+unsubscribe@googlegroups.com . To view this…

The JVM uses reserved memory, buffers, and stacks beside the heap, most can not be controlled by user settings. To reduce memory as much as possible for a Java process, do not use mlockall tricks, use 32bit JVM and reduce maximum allowed stack size with -Xss (this will affect performance of cour…

Ok, I now understand mlockall. But I'm not asking this question in the context of a memory contrived node; my production nodes have 32G ram; I used this setting in order to prevent OOM of prodution nodes. I may misunderstood the informations a gathered from the web, but I deduced that with the f…

If you have 32G RAM, just configure ES with ES_HEAP_SIZE=16g If you want to mess with JVM options, set them to -Xmx16g -Xms16g (look into bin/elasticsearch.in.sh assuming you are on Linux) To answer your question, you have passed wrong args in Xmx to the JVM and the JVM silently resets the heap…

Discuss the Elastic Stack

Trouble understanding mlockall behaviour

Elastic Stack Elasticsearch

Topic		Replies	Views
Issue restarting Elasticsearch with mlockall = true Elasticsearch	2	338	July 6, 2017
Cannot set up mlockall 'true' on RedHat 6.6 Elasticsearch	14	4069	July 5, 2017
Elasticsearch is taking more memory than allocated heap when using bootstrap.mlockall: true Elasticsearch	4	2474	July 6, 2017
Mlockall vs ES_HEAP_SIZE Elasticsearch	2	654	July 5, 2017
Mlockall and mmapfs store type clarification Elasticsearch	2	632	July 6, 2017

Elasticsearch is a trademark of Elasticsearch BV, registered in the U.S. and in other countries
Trademarks
Terms
Privacy
Brand
Code of Conduct

Apache, Apache Lucene, Apache Hadoop, Hadoop, HDFS and the yellow elephant logo are trademarks of the Apache Software Foundation in the United States and/or other countries.

Trouble understanding mlockall behaviour

Related topics