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
