Try using haveged for your entropy problem. On Thu, 16 Jul, 2020, 10:20 pm Walter Underwood, <wun...@wunderwood.org> wrote:
> 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 > >> > >> > >
