Hi Mikael, We are using below settings and we have default off heap memory enabled. Heap size is 10 GB per node and we are running 4 nodes as part of cluster. Data size is ~25MB but it continuously updates and inserts records in every 5 mins and 15 mins. It’s a low latency application. We haven’t enabled persistence.
-Dcom.sun.management.jmxremote -Dcom.sun.management.jmxremote.port=55555 -Dcom.sun.management.jmxremote.authenticate=false -Dcom.sun.management.jmxremote.ssl=false -Xms10g -Xmx10g -XX:+AlwaysPreTouch -XX:+UseG1GC -XX:+ScavengeBeforeFullGC -XX:+DisableExplicitGC -Djava.net.preferIPv4Stack=true Regards Satyajit From: Mikael <mikael.arons...@gmail.com> Sent: Tuesday, January 11, 2022 11:29 PM To: user@ignite.apache.org Subject: Re: long JVM pauses CAUTION: This email originated from outside our organisation - mikael.arons...@gmail.com<mailto:mikael.arons...@gmail.com> Do not click on links, open attachments, or respond unless you recognize the sender and can validate the content is safe. Hi! There are no generic settings, each case is unique, it will require some tuning to get it right, how much java heap do you use ? and what garbage collector are you using ? how much data do you have ? persistence enabled ? how do you use the caches, is data deleted often or do you keep it around for longer time ? Mikael On 2022-01-11 18:23, satyajit.man...@barclays.com<mailto:satyajit.man...@barclays.com> wrote: Hi Team, We do see long JVM pauses and after that nodes in our cluster stops. This happens in every two weeks usually. What are the possible solutions to avoid long JVM pause. Can someone advise generic settings which is recommended in such cases? [23:20:37,824][WARNING][jvm-pause-detector-worker][IgniteKernal] Possible too long JVM pause: 2262 milliseconds. Regards Satyajit Restricted - Internal This message is for information purposes only. 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