On 5/9/2016 11:42 PM, lltvw wrote: > By using jps command double check the parms used to start solr, i found that > the max heap size already set to 10G. So I made a big mistake yesterday. > > But by using solr admin UI, I select the collection with performance problem, > in the overview page I find that the heap memory is about 8M. What is wrong. > > Every time I search difference characters, QTime from response header always > greater than 300ms. If I search again, cause i can hit cache, the response > time could become to about 30ms.
When my queries hit the cache, they only take a few milliseconds. 30 milliseconds for a cached query seems VERY slow. Can you open the dashboard in the admin UI, make it large enough to see everything, take a screenshot of the whole page, and included a URL where that screenshot can be viewed? I do not need to see the whole browser window, just the whole dashboard. Here's an example of what I am looking for: https://www.dropbox.com/s/ixu8dr954mst0c4/dashboard-just-page.png?dl=0 In my example, you can't see all of the JVM Args in the screenshot -- there are a lot more of them, and they wouldn't fit in the window even when maximized. So if your screenshot doesn't include all of them, you probably should copy those as text and include them in your reply -- like this: -DSTOP.KEY=solrrocks -DSTOP.PORT=7982 -Dcom.sun.management.jmxremote -Dcom.sun.management.jmxremote.authenticate=false -Dcom.sun.management.jmxremote.local.only=false -Dcom.sun.management.jmxremote.port=18982 -Dcom.sun.management.jmxremote.rmi.port=18982 -Dcom.sun.management.jmxremote.ssl=false -Djetty.home=/opt/solr5/server -Djetty.port=8982 -Dlog4j.configuration=file:/index/solr5/log4j.properties -Dsolr.install.dir=/opt/solr5 -Dsolr.solr.home=/index/solr5/data -Duser.timezone=UTC -XX:+CMSParallelRemarkEnabled -XX:+CMSScavengeBeforeRemark -XX:+ParallelRefProcEnabled -XX:+PrintGCApplicationStoppedTime -XX:+PrintGCDateStamps -XX:+PrintGCDetails -XX:+PrintGCTimeStamps -XX:+PrintHeapAtGC -XX:+PrintTenuringDistribution -XX:+UseCMSInitiatingOccupancyOnly -XX:+UseConcMarkSweepGC -XX:+UseParNewGC -XX:CMSInitiatingOccupancyFraction=70 -XX:CMSMaxAbortablePrecleanTime=2000 -XX:MaxTenuringThreshold=8 -XX:NewRatio=3 -XX:OnOutOfMemoryError=/opt/solr5/bin/oom_solr.sh 8982 /index/solr5/logs -XX:PretenureSizeThreshold=64m -XX:SurvivorRatio=4 -XX:TargetSurvivorRatio=90 -Xloggc:/index/solr5/logs/solr_gc.log -Xms22g -Xmx22g -verbose:gc How are you starting Solr? With Solr 4.x, there are limitless numbers of ways to install and start Solr, because it is released as a webapp .war file. When 5.0 was released, that was reduced to only a few supported options. Thanks, Shawn
