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ASF GitHub Bot commented on STORM-1208: --------------------------------------- Github user redsanket commented on the pull request: https://github.com/apache/storm/pull/881#issuecomment-157175212 +1 NB > UI: NPE seen when aggregating bolt streams stats > ------------------------------------------------ > > Key: STORM-1208 > URL: https://issues.apache.org/jira/browse/STORM-1208 > Project: Apache Storm > Issue Type: Bug > Components: storm-core > Affects Versions: 0.11.0 > Reporter: Derek Dagit > Assignee: Derek Dagit > > A stack trace is seen on the UI via its thrift connection to nimbus. > On nimbus, a stack trace similar to the following is seen: > {noformat} > 2015-11-09 19:26:48.921 o.a.t.s.TThreadPoolServer [ERROR] Error occurred > during processing of message. > java.lang.NullPointerException > at > backtype.storm.stats$agg_bolt_streams_lat_and_count$iter__2219__2223$fn__2224.invoke(stats.clj:346) > ~[storm-core-0.10.1.jar:0.10.1] > at clojure.lang.LazySeq.sval(LazySeq.java:40) ~[clojure-1.6.0.jar:?] > at clojure.lang.LazySeq.seq(LazySeq.java:49) ~[clojure-1.6.0.jar:?] > at clojure.lang.RT.seq(RT.java:484) ~[clojure-1.6.0.jar:?] > at clojure.core$seq.invoke(core.clj:133) ~[clojure-1.6.0.jar:?] > at clojure.core.protocols$seq_reduce.invoke(protocols.clj:30) > ~[clojure-1.6.0.jar:?] > at clojure.core.protocols$fn__6078.invoke(protocols.clj:54) > ~[clojure-1.6.0.jar:?] > at > clojure.core.protocols$fn__6031$G__6026__6044.invoke(protocols.clj:13) > ~[clojure-1.6.0.jar:?] > at clojure.core$reduce.invoke(core.clj:6289) ~[clojure-1.6.0.jar:?] > at clojure.core$into.invoke(core.clj:6341) ~[clojure-1.6.0.jar:?] > at > backtype.storm.stats$agg_bolt_streams_lat_and_count.invoke(stats.clj:344) > ~[storm-core-0.10.1.jar:0.10.1] > at > backtype.storm.stats$agg_pre_merge_comp_page_bolt.invoke(stats.clj:439) > ~[storm-core-0.10.1.jar:0.10.1] > at backtype.storm.stats$fn__2578.invoke(stats.clj:1093) > ~[storm-core-0.10.1.jar:0.10.1] > at clojure.lang.MultiFn.invoke(MultiFn.java:241) > ~[clojure-1.6.0.jar:?] > at clojure.lang.AFn.applyToHelper(AFn.java:165) ~[clojure-1.6.0.jar:?] > at clojure.lang.AFn.applyTo(AFn.java:144) ~[clojure-1.6.0.jar:?] > at clojure.core$apply.invoke(core.clj:628) ~[clojure-1.6.0.jar:?] > at clojure.core$partial$fn__4230.doInvoke(core.clj:2470) > ~[clojure-1.6.0.jar:?] > at clojure.lang.RestFn.invoke(RestFn.java:421) ~[clojure-1.6.0.jar:?] > at clojure.core.protocols$fn__6086.invoke(protocols.clj:143) > ~[clojure-1.6.0.jar:?] > at > clojure.core.protocols$fn__6057$G__6052__6066.invoke(protocols.clj:19) > ~[clojure-1.6.0.jar:?] > at clojure.core.protocols$seq_reduce.invoke(protocols.clj:31) > ~[clojure-1.6.0.jar:?] > at clojure.core.protocols$fn__6078.invoke(protocols.clj:54) > ~[clojure-1.6.0.jar:?] > at > clojure.core.protocols$fn__6031$G__6026__6044.invoke(protocols.clj:13) > ~[clojure-1.6.0.jar:?] > at clojure.core$reduce.invoke(core.clj:6289) ~[clojure-1.6.0.jar:?] > at > backtype.storm.stats$aggregate_comp_stats_STAR_.invoke(stats.clj:1106) > ~[storm-core-0.10.1.jar:0.10.1] > at clojure.lang.AFn.applyToHelper(AFn.java:165) ~[clojure-1.6.0.jar:?] > at clojure.lang.AFn.applyTo(AFn.java:144) ~[clojure-1.6.0.jar:?] > at clojure.core$apply.invoke(core.clj:624) ~[clojure-1.6.0.jar:?] > at backtype.storm.stats$fn__2589.doInvoke(stats.clj:1127) > ~[storm-core-0.10.1.jar:0.10.1] > at clojure.lang.RestFn.invoke(RestFn.java:436) ~[clojure-1.6.0.jar:?] > at clojure.lang.MultiFn.invoke(MultiFn.java:236) > ~[clojure-1.6.0.jar:?] > at backtype.storm.stats$agg_comp_execs_stats.invoke(stats.clj:1303) > ~[storm-core-0.10.1.jar:0.10.1] > at > backtype.storm.daemon.nimbus$fn__5893$exec_fn__1502__auto__$reify__5917.getComponentPageInfo(nimbus.clj:1715) > ~[storm-core-0.10.1.jar:0.10.1] > at > backtype.storm.generated.Nimbus$Processor$getComponentPageInfo.getResult(Nimbus.java:3677) > ~[storm-core-0.10.1.jar:0.10.1] > at > backtype.storm.generated.Nimbus$Processor$getComponentPageInfo.getResult(Nimbus.java:3661) > ~[storm-core-0.10.1.jar:0.10.1] > at > org.apache.thrift7.ProcessFunction.process(ProcessFunction.java:39) > ~[storm-core-0.10.1.jar:0.10.1] > at org.apache.thrift7.TBaseProcessor.process(TBaseProcessor.java:39) > ~[storm-core-0.10.1.jar:0.10.1] > at > backtype.storm.security.auth.SaslTransportPlugin$TUGIWrapProcessor.process(SaslTransportPlugin.java:143) > ~[storm-core-0.10.1.jar:0.10.1] > at > org.apache.thrift7.server.TThreadPoolServer$WorkerProcess.run(TThreadPoolServer.java:285) > [storm-core-0.10.1.jar:0.10.1] > at > java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) > [?:1.8.0_40] > at > java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) > [?:1.8.0_40] > at java.lang.Thread.run(Thread.java:745) [?:1.8.0_40] > {noformat} -- This message was sent by Atlassian JIRA (v6.3.4#6332)