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From 胡一博 <huyibo1...@163.com>
Subject ygc problem on solr 5.5.1
Date Fri, 10 Nov 2017 06:22:10 GMT
Hello everyone!


I run a solr cloud on version 5.5.1.
Sometime ,the ygc time would increase from 0.1s to 10+seconds and keep 10+seconds for several
hours.Even after I trigger a fullgc ,the ygc still cost 10+seconds.
This happened seldom.
jvm params:(java version "1.7.0_60", Java HotSpot (TM) 64-Bit Server VM(build 24.60-b09, mixed
mode))
-XX:+CMSParallelRemarkEnabled
-XX:+CMSScavengeBeforeRemark
-XX:+ParallelRefProcEnabled
-XX:+UseCMSInitiatingOccupancyOnly
-XX:+UseConcMarkSweepGC
-XX:+UseParNewGC
-XX:+CMSFullGCsBeforeCompaction=1
-XX:+CMSInitiatingOccupancyFraction=80
-XX:ConcGCThreads=4
-XX:MaxTenuringThreshold=8
-XX:NewRatio=3
-XX:ParallelGCThreads=4
-XX:SurvivorRatio=4
-XX:TargetSurvivorRatio=90
-Xms30g
-Xmx30g
-Xss256k
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