Hey everyone, We use Ignite 1.8 and see a difference in heap used when lowering the value for IGNITE_ATOMIC_CACHE_DELETE_HISTORY_SIZE. I'm not sure to understand what it's going to happen if we decrease that value on production. Could someone clear that up for me please? From what I understand, deleted entries go in that queue for cleaning, where one thread per cache is in charge of cleaning the queue. But what if the queue is full? I might have missed that information in the documentation, my bad if I did.
Maybe on the same subject, is it going to slow down the free up of the heap after cache.destroy()? We have a use-case where we delete 4 caches at the same time containing ~500k entries heavily indexed. When doing so, it takes few minutes for the heap to decrease as you can see here http://imgur.com/a/kPsSc . We would not want to extend the time to free up memory even more. More information about our setup: - on heap (we'll eventually move to off heap but back then we could not make Ignite 1.8 to free up memory at all with our version of glibc. It would work with jmalloc but that was not permitted on production at that time). - no backup - atomicity mode: atomic - cache mode: partitioned - cluster of 4 nodes - jvm options: -J-DIGNITE_LONG_OPERATIONS_DUMP_TIMEOUT=300000 -J-Xms12g -J-Xmx12g -J-server -J-XX:+UseParNewGC -J-XX:+UseConcMarkSweepGC -J-XX:+UseTLAB -J-XX:NewSize=128m -J-XX:MaxNewSize=128m -J-XX:MaxTenuringThreshold=0 -J-XX:SurvivorRatio=1024 -J-XX:+UseCMSInitiatingOccupancyOnly -J-XX:CMSInitiatingOccupancyFraction=10 -J-XX:MaxGCPauseMillis=1000 -J-XX:InitiatingHeapOccupancyPercent=10 -J-XX:+UseCompressedOops -J-XX:ParallelGCThreads=8 -J-XX:ConcGCThreads=8 -J-XX:+PrintGCDetails -J-XX:+PrintGCTimeStamps -J-XX:+PrintGCDateStamps -J-XX:+UseGCLogFileRotation -J-XX:NumberOfGCLogFiles=10 -J-XX:GCLogFileSize=100M -J-Xloggc:/tmp/ignite-gc.log -J-Dcom.sun.management.jmxremote.port=49130 Thanks for your help, Charly -- View this message in context: http://apache-ignite-users.70518.x6.nabble.com/Small-value-for-IGNITE-ATOMIC-CACHE-DELETE-HISTORY-SIZE-tp14037.html Sent from the Apache Ignite Users mailing list archive at Nabble.com.
