Instead of editing bin/solr, you should be able to set GC_TUNE in solr.in.sh, as I showed in my post below.
wunder Walter Underwood wun...@wunderwood.org http://observer.wunderwood.org/ (my blog) > On Jul 16, 2020, at 7:52 AM, krishan goyal <krishan1...@gmail.com> wrote: > > The issue was figured out by starting solr with the -f parameter which > starts solr in foreground and provides the errors if any > > Got an error - "Conflicting collector combinations in option list; please > refer to the release notes for the combinations allowed" > > Turns out bin/solr file starts with CMS by default and had to disable that > to resolve the conflict. > > > On Wed, Jul 15, 2020 at 10:20 PM Walter Underwood <wun...@wunderwood.org> > wrote: > >> I don’t see a heap size specified, so it is probably trying to run with >> a 512 Megabyte heap. That might just not work with the 32M region >> size. >> >> Here are the options we have been using for 3+ years on about 150 hosts. >> >> SOLR_HEAP=8g >> # Use G1 GC -- wunder 2017-01-23 >> # Settings from https://wiki.apache.org/solr/ShawnHeisey >> GC_TUNE=" \ >> -XX:+UseG1GC \ >> -XX:+ParallelRefProcEnabled \ >> -XX:G1HeapRegionSize=8m \ >> -XX:MaxGCPauseMillis=200 \ >> -XX:+UseLargePages \ >> -XX:+AggressiveOpts \ >> " >> >> wunder >> Walter Underwood >> wun...@wunderwood.org >> http://observer.wunderwood.org/ (my blog) >> >>> On Jul 15, 2020, at 4:24 AM, krishan goyal <krishan1...@gmail.com> >> wrote: >>> >>> Hi, >>> >>> I am using Solr 7.7 >>> >>> I am trying to start my solr server with G1 GC instead of the default CMS >>> but the solr service doesn't get up. >>> >>> The command I use to start solr is >>> >>> bin/solr start -p 25280 -a "-Dsolr.solr.home=<solrhomepath> >>> -Denable.slave=true -Denable.master=false -XX:+UseG1GC >>> -XX:MaxGCPauseMillis=500 -XX:+UnlockExperimentalVMOptions >>> -XX:G1MaxNewSizePercent=30 -XX:G1NewSizePercent=5 >> -XX:G1HeapRegionSize=32M >>> -XX:InitiatingHeapOccupancyPercent=70" >>> >>> I have tried various permutations of the start command by dropping / >> adding >>> other parameters but it doesn't work. However starts up just fine with >>> just "-Dsolr.solr.home=<solrhomepath> -Denable.slave=true >>> -Denable.master=false" and starts up with the default CMS collector >>> >>> I don't get any useful error logs too. It waits for default 180 secs and >>> then prints >>> >>> Warning: Available entropy is low. As a result, use of the UUIDField, >> SSL, >>> or any other features that require >>> RNG might not work properly. To check for the amount of available >> entropy, >>> use 'cat /proc/sys/kernel/random/entropy_avail'. >>> >>> Waiting up to 180 seconds to see Solr running on port 25280 [|] Still >> not >>> seeing Solr listening on 25280 after 180 seconds! >>> 2020-07-15 07:07:52.042 INFO (coreCloseExecutor-60-thread-6) [ >>> x:coreName] o.a.s.c.SolrCore [coreName] CLOSING SolrCore >>> org.apache.solr.core.SolrCore@7cc638d8 >>> 2020-07-15 07:07:52.099 INFO (coreCloseExecutor-60-thread-6) [ >>> x:coreName] o.a.s.m.SolrMetricManager Closing metric reporters for >>> registry=solr.core.coreName, tag=7cc638d8 >>> 2020-07-15 07:07:52.100 INFO (coreCloseExecutor-60-thread-6) [ >>> x:coreName] o.a.s.m.r.SolrJmxReporter Closing reporter >>> [org.apache.solr.metrics.reporters.SolrJmxReporter@5216981f: rootName = >>> null, domain = solr.core.coreName, service url = null, agent id = null] >> for >>> registry solr.core.coreName / >> com.codahale.metrics.MetricRegistry@32988ddf >>> 2020-07-15 07:07:52.173 INFO (ShutdownMonitor) [ ] >>> o.a.s.m.SolrMetricManager Closing metric reporters for >> registry=solr.node, >>> tag=null >>> 2020-07-15 07:07:52.173 INFO (ShutdownMonitor) [ ] >>> o.a.s.m.r.SolrJmxReporter Closing reporter >>> [org.apache.solr.metrics.reporters.SolrJmxReporter@28952dea: rootName = >>> null, domain = solr.node, service url = null, agent id = null] for >> registry >>> solr.node / com.codahale.metrics.MetricRegistry@655f4a3f >>> 2020-07-15 07:07:52.175 INFO (ShutdownMonitor) [ ] >>> o.a.s.m.SolrMetricManager Closing metric reporters for registry=solr.jvm, >>> tag=null >>> 2020-07-15 07:07:52.175 INFO (ShutdownMonitor) [ ] >>> o.a.s.m.r.SolrJmxReporter Closing reporter >>> [org.apache.solr.metrics.reporters.SolrJmxReporter@69c6161d: rootName = >>> null, domain = solr.jvm, service url = null, agent id = null] for >> registry >>> solr.jvm / com.codahale.metrics.MetricRegistry@1252ce77 >>> 2020-07-15 07:07:52.176 INFO (ShutdownMonitor) [ ] >>> o.a.s.m.SolrMetricManager Closing metric reporters for >> registry=solr.jetty, >>> tag=null >>> 2020-07-15 07:07:52.176 INFO (ShutdownMonitor) [ ] >>> o.a.s.m.r.SolrJmxReporter Closing reporter >>> [org.apache.solr.metrics.reporters.SolrJmxReporter@3aefae67: rootName = >>> null, domain = solr.jetty, service url = null, agent id = null] for >>> registry solr.jetty / com.codahale.metrics.MetricRegistry@3a538ecd >> >>
