iamssx opened a new issue, #6226:
URL: https://github.com/apache/rocketmq/issues/6226
use the default config to start up a rocketmq cluster,when it run for a
month or so, there will be a jvm crash because of oom. we try to modify the
linux memory arguments , and that is not worked. and we get the jvm dump and
thread stack. now we found that a lot of FlowMonitor thread wating, and it
keep increase.we suspect the amount of flowmonitor thread is the reason of jvm
crash.
please read the thread analysis and jvm crash, and tell us the true reason
why it crash, and the way to fix it, thanks!
environment:
rocketmq 5.0.0
linux redhat7.9, 48Core/755GB MEM
/usr/local/jdk/bin/java -server -Xms8g -Xmx8g -XX:+UseG1GC
-XX:G1HeapRegionSize=16m -XX:G1ReservePercent=25
-XX:InitiatingHeapOccupancyPercent=30 -XX:SoftRefLRUPolicyMSPerMB=0 -verbose:gc
-Xloggc:/dev/shm/rmq_srv_gc_%p_%t.log -XX:+PrintGCDetails
-XX:+PrintGCDateStamps -XX:+PrintGCApplicationStoppedTime
-XX:+PrintAdaptiveSizePolicy -XX:+UseGCLogFileRotation -XX:NumberOfGCLogFiles=5
-XX:GCLogFileSize=30m -XX:-OmitStackTraceInFastThrow -XX:+AlwaysPreTouch
-XX:MaxDirectMemorySize=15g -XX:-UseLargePages -XX:-UseBiasedLocking
-Drocketmq.client.logUseSlf4j=true -cp
.:/data/rocketmq-all-5.0.0-bin-release//bin/../conf:/data/rocketmq-all-5.0.0-bin-release//bin/../lib/*:
-Djdk.tls.rejectClientInitiatedRenegotiation=true
org.apacherocketmq.broker.BrokerStartup -c
/data/rocketmq/conf/broker-c.properties
the jvm crash info:
thread dump:
https://fastthread.io/my-thread-report.jsp?p=c2hhcmVkLzIwMjMvMDMvMi90aHJlYWQudHh0LS03LTE0LTU2&;
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