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From vdpyatkov <vldpyat...@gmail.com>
Subject Re: Exceptions while running Closure with task count > 1000
Date Mon, 24 Apr 2017 11:38:14 GMT
Hi,

You will get the message "Task was not deployed or was redeployed" when
topology is instability.

You need to look at heap utilization and GC work.
I recommend to try G1 garbage collector and jdk 1.8 with option like this:

-server
-XX:SurvivorRatio=12
-XX:ConcGCThreads=8
-XX:+AlwaysPreTouch
-XX:+UseG1GC
-XX:MaxGCPauseMillis=2000
-XX:InitiatingHeapOccupancyPercent=30
-XX:G1HeapRegionSize=8m
-XX:+ScavengeBeforeFullGC
-XX:+DisableExplicitGC

and looking after behavior of heap by log

-XX:+PrintGCDetails
-XX:+PrintGCTimeStamps
-XX:+PrintGCDateStamps
-XX:+UseGCLogFileRotation
-XX:+PrintAdaptiveSizePolicy
-XX:+PrintGCApplicationStoppedTime
-XX:NumberOfGCLogFiles=10
-XX:GCLogFileSize=100M
-Xloggc:/var/gridgain/logs/gc/gc.log

Also look at jvm dump, in case OOM through out again:

-XX:+HeapDumpOnOutOfMemoryError 
-XX:HeapDumpPath=/path/to/heapdump



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