Thank you Cassandra. Does seem like a thread unsafe operation issue. But what confuses me is the error occurs every time and only occurs when I have multiple metrics group configured. Also the exception is null pointer on the linked list instead of already connected exception
Regards Sudershan Madhavan On 7 Nov 2017 6:18 pm, "Cassandra Targett" <casstarg...@gmail.com> wrote: > I believe this is https://issues.apache.org/jira/browse/SOLR-11413, > which has a fix already slated for Solr 7.2. > > On Tue, Nov 7, 2017 at 10:44 AM, sudershan madhavan > <sudershan.madha...@gmail.com> wrote: > > Hi, > > I am running Solrcloud version: 6.6.1 > > I have been trying to use graphite to report solr metrics and seem to get > > the below error while doing so in the solr logs: > >> > >> java.lang.NullPointerException > >> at > >> com.codahale.metrics.graphite.PickledGraphite.pickleMetrics( > PickledGraphite.java:313) > >> at > >> com.codahale.metrics.graphite.PickledGraphite.writeMetrics( > PickledGraphite.java:255) > >> at > >> com.codahale.metrics.graphite.PickledGraphite.send( > PickledGraphite.java:213) > >> at > >> com.codahale.metrics.graphite.GraphiteReporter.reportGauge( > GraphiteReporter.java:345) > >> at > >> com.codahale.metrics.graphite.GraphiteReporter.report( > GraphiteReporter.java:243) > >> at > >> com.codahale.metrics.ScheduledReporter.report( > ScheduledReporter.java:251) > >> at > >> com.codahale.metrics.ScheduledReporter$1.run( > ScheduledReporter.java:174) > >> at > >> java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) > >> at > >> java.util.concurrent.FutureTask.runAndReset(FutureTask.java:308) > >> at > >> java.util.concurrent.ScheduledThreadPoolExecutor$ > ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180) > >> at > >> java.util.concurrent.ScheduledThreadPoolExecutor$ > ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294) > >> at > >> java.util.concurrent.ThreadPoolExecutor.runWorker( > ThreadPoolExecutor.java:1142) > >> at > >> java.util.concurrent.ThreadPoolExecutor$Worker.run( > ThreadPoolExecutor.java:617) > >> at java.lang.Thread.run(Thread.java:745) > >> 2017-11-07 15:28:47.543 WARN (metrics-graphite-reporter-3-thread-1) > [ ] > >> c.c.m.g.GraphiteReporter Unable to report to Graphite > >> java.net.SocketException: Socket closed > >> at > >> java.net.SocketOutputStream.socketWrite(SocketOutputStream.java:118) > >> at java.net.SocketOutputStream.write(SocketOutputStream.java: > 143) > >> at > >> com.codahale.metrics.graphite.PickledGraphite.writeMetrics( > PickledGraphite.java:261) > >> at > >> com.codahale.metrics.graphite.PickledGraphite.send( > PickledGraphite.java:213) > >> at > >> com.codahale.metrics.graphite.GraphiteReporter.sendIfEnabled( > GraphiteReporter.java:328) > >> at > >> com.codahale.metrics.graphite.GraphiteReporter.reportTimer( > GraphiteReporter.java:288) > >> at > >> com.codahale.metrics.graphite.GraphiteReporter.report( > GraphiteReporter.java:259) > >> at > >> com.codahale.metrics.ScheduledReporter.report( > ScheduledReporter.java:251) > >> at > >> com.codahale.metrics.ScheduledReporter$1.run( > ScheduledReporter.java:174) > >> at > >> java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) > >> at > >> java.util.concurrent.FutureTask.runAndReset(FutureTask.java:308) > >> at > >> java.util.concurrent.ScheduledThreadPoolExecutor$ > ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180) > >> at > >> java.util.concurrent.ScheduledThreadPoolExecutor$ > ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294) > >> at > >> java.util.concurrent.ThreadPoolExecutor.runWorker( > ThreadPoolExecutor.java:1142) > >> at > >> java.util.concurrent.ThreadPoolExecutor$Worker.run( > ThreadPoolExecutor.java:617) > >> at java.lang.Thread.run(Thread.java:745) > >> 2017-11-07 15:28:47.543 ERROR (metrics-graphite-reporter-1-thread-1) > [ ] > >> c.c.m.ScheduledReporter Exception thrown from GraphiteReporter#report. > >> Exception was suppressed. > >> java.lang.NullPointerException > >> at java.util.LinkedList$ListItr.next(LinkedList.java:893) > >> at > >> com.codahale.metrics.graphite.PickledGraphite.pickleMetrics( > PickledGraphite.java:305) > >> at > >> com.codahale.metrics.graphite.PickledGraphite.writeMetrics( > PickledGraphite.java:255) > >> at > >> com.codahale.metrics.graphite.PickledGraphite.send( > PickledGraphite.java:213) > >> at > >> com.codahale.metrics.graphite.GraphiteReporter.sendIfEnabled( > GraphiteReporter.java:328) > >> at > >> com.codahale.metrics.graphite.GraphiteReporter.reportMetered( > GraphiteReporter.java:304) > >> at > >> com.codahale.metrics.graphite.GraphiteReporter.report( > GraphiteReporter.java:255) > >> at > >> com.codahale.metrics.ScheduledReporter.report( > ScheduledReporter.java:251) > >> at > >> com.codahale.metrics.ScheduledReporter$1.run( > ScheduledReporter.java:174) > >> at > >> java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) > >> at > >> java.util.concurrent.FutureTask.runAndReset(FutureTask.java:308) > >> at > >> java.util.concurrent.ScheduledThreadPoolExecutor$ > ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180) > >> at > >> java.util.concurrent.ScheduledThreadPoolExecutor$ > ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294) > >> at > >> java.util.concurrent.ThreadPoolExecutor.runWorker( > ThreadPoolExecutor.java:1142) > >> at > >> java.util.concurrent.ThreadPoolExecutor$Worker.run( > ThreadPoolExecutor.java:617) > >> at java.lang.Thread.run(Thread.java:745) > >> (END) > > > > > > Kindly let me know if this needs to be reported as a bug. >
