Hi, You don't provide information about the number of documents. Anyway, all your cache size and mostly initial size are big. Cache are stored in JVM heap.
About cache size, most is not always better. Did you make some performance benchmarks in order to set these values ? Try with the default values, after a few hours check cumulative caches statistics in order to decide if you need to increase their sizes. The objective is not to have cumulative_hitratio to 100%. There isn't ideal value as it is really related to your datas, to the user's queries, to how you build your queries ... but 70% is a good value. At some point increasing the size again and again won't increase cumulative_hitratio a lot as it is a logarithmic curve. Check also the heap usage also with your JVM GC logs and a tool like gceasy.io Regards Dominique Le lun. 9 août 2021 à 07:44, Satya Nand <satya.n...@indiamart.com.invalid> a écrit : > Hi, > We are facing a strange issue in our solr system. Most of the days it keeps > running fine but once or twice in a month, we face OutofMemory on solr > servers. > > We are using Leader-Follower architecture, one Leader and 4 followers. > Strangely we get OutofMemory error on all follower servers. > Before the OutOfMemory this exception is found on all servers. > > Aug, 04 2021 15:26:11 org.apache.solr.servlet.HttpSolrCall > search-central-prd-solr-temp1 > ERROR: null:java.lang.NullPointerException search-central-prd-solr-temp1 > at > > org.apache.solr.search.CollapsingQParserPlugin$OrdScoreCollector.finish(CollapsingQParserPlugin.java:617) > search-central-prd-solr-temp1 > at > > org.apache.solr.search.SolrIndexSearcher.buildAndRunCollectorChain(SolrIndexSearcher.java:240) > search-central-prd-solr-temp1 > at > > org.apache.solr.search.SolrIndexSearcher.getDocListNC(SolrIndexSearcher.java:2027) > search-central-prd-solr-temp1 > at > > org.apache.solr.search.SolrIndexSearcher.getDocListC(SolrIndexSearcher.java:1844) > search-central-prd-solr-temp1 > at > org.apache.solr.search.SolrIndexSearcher.search(SolrIndexSearcher.java:609) > search-central-prd-solr-temp1 > at > > org.apache.solr.handler.component.QueryComponent.process(QueryComponent.java:547) > search-central-prd-solr-temp1 > at > > org.apache.solr.handler.component.SearchHandler.handleRequestBody(SearchHandler.java:295) > search-central-prd-solr-temp1 > at > > org.apache.solr.handler.RequestHandlerBase.handleRequest(RequestHandlerBase.java:173) > search-central-prd-solr-temp1 > at org.apache.solr.core.SolrCore.execute(SolrCore.java:2440) > search-central-prd-solr-temp1 > at > org.apache.solr.servlet.HttpSolrCall.execute(HttpSolrCall.java:723) > search-central-prd-solr-temp1 > at org.apache.solr.servlet.HttpSolrCall.call(HttpSolrCall.java:529) > search-central-prd-solr-temp1 > at > > org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:347) > search-central-prd-solr-temp1 > at > > org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:298) > search-central-prd-solr-temp1 > at > > org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1691) > search-central-prd-solr-temp1 > at > org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:582) > search-central-prd-solr-temp1 > at > > org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:143) > search-central-prd-solr-temp1 > at > org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:548) > search-central-prd-solr-temp1 > at > > org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:226) > search-central-prd-solr-temp1 > at > > org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1180) > search-central-prd-solr-temp1 > at > org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:512) > search-central-prd-solr-temp1 > at > > org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:185) > search-central-prd-solr-temp1 > at > > org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1112) > search-central-prd-solr-temp1 > at > > org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141) > search-central-prd-solr-temp1 > at > > org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:213) > search-central-prd-solr-temp1 > at > > org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:119) > search-central-prd-solr-temp1 > at > > org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:134) > search-central-prd-solr-temp1 > at > > org.eclipse.jetty.rewrite.handler.RewriteHandler.handle(RewriteHandler.java:335) > search-central-prd-solr-temp1 > at > > org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:134) > search-central-prd-solr-temp1 > at org.eclipse.jetty.server.Server.handle(Server.java:534) > search-central-prd-solr-temp1 > at > org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:320) > search-central-prd-solr-temp1 > at > org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:251) > search-central-prd-solr-temp1 > > *Configuration* > Index size- 95 GB > Heap 30 GB > Ram-96 GB > Polling Interval - 3 Hours > Caching- > <filterCache class="solr.FastLRUCache" size="4000" initialSize="2000" > autowarmCount="100" /> <queryResultCache class="solr.LRUCache" size="30000" > initialSize="1000" autowarmCount="100" /> <documentCache class= > "solr.LRUCache" size="25000" initialSize="512" autowarmCount="512" /> > > -- > >
