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
