Zhuo Liu created STORM-1687:
-------------------------------
Summary: Divide by zero exception in stats
Key: STORM-1687
URL: https://issues.apache.org/jira/browse/STORM-1687
Project: Apache Storm
Issue Type: Bug
Components: storm-core
Affects Versions: 1.0.0, 2.0.0
Reporter: Zhuo Liu
Assignee: Zhuo Liu
Fix For: 1.0.0, 2.0.0
Since uptime can be 0, this will cause ArithmeticException: Divide by zero in
compute-agg-capacity.
Both for stats.clj in 1.x and StatsUtil.java in master (2.0)
{noformat}
java.lang.ArithmeticException: Divide by zero
at clojure.lang.Numbers.divide(Numbers.java:156)
at clojure.core$SLASH.invoke(core.clj:986)
at clojure.lang.AFn.applyToHelper(AFn.java:156)
at clojure.lang.RestFn.applyTo(RestFn.java:132)
at clojure.core$apply.invoke(core.clj:626)
at backtype.storm.util$div.doInvoke(util.clj:355)
at clojure.lang.RestFn.invoke(RestFn.java:423)
at backtype.storm.stats$compute_agg_capacity$fn__2249.invoke(stats.clj:409)
at backtype.storm.stats$compute_agg_capacity.invoke(stats.clj:404)
at backtype.storm.stats$agg_pre_merge_topo_page_bolt.invoke(stats.clj:555)
at backtype.storm.stats$agg_topo_exec_stats_STAR_.invoke(stats.clj:724)
at backtype.storm.stats$fn__2319.invoke(stats.clj:772)
at clojure.lang.MultiFn.invoke(MultiFn.java:241)
at clojure.lang.AFn.applyToHelper(AFn.java:165)
at clojure.lang.AFn.applyTo(AFn.java:144)
at clojure.core$apply.invoke(core.clj:628)
at clojure.core$partial$fn__4230.doInvoke(core.clj:2470)
at clojure.lang.RestFn.invoke(RestFn.java:421)
at clojure.core.protocols$fn__6086.invoke(protocols.clj:143)
at clojure.core.protocols$fn_6057$G6052_6066.invoke(protocols.clj:19)
at clojure.core.protocols$seq_reduce.invoke(protocols.clj:31)
at clojure.core.protocols$fn__6078.invoke(protocols.clj:54)
at clojure.core.protocols$fn_6031$G6026_6044.invoke(protocols.clj:13)
at clojure.core$reduce.invoke(core.clj:6289)
at backtype.storm.stats$aggregate_topo_stats.invoke(stats.clj:854)
at backtype.storm.stats$agg_topo_execs_stats.invoke(stats.clj:1008)
at
backtype.storm.daemon.nimbus$fn_5838$exec_fn1478auto$reify_5862.getTopologyPageInfo(nimbus.clj:1729)
at
backtype.storm.generated.Nimbus$Processor$getTopologyPageInfo.getResult(Nimbus.java:3651)
at
backtype.storm.generated.Nimbus$Processor$getTopologyPageInfo.getResult(Nimbus.java:3635)
at org.apache.thrift7.ProcessFunction.process(ProcessFunction.java:39)
at org.apache.thrift7.TBaseProcessor.process(TBaseProcessor.java:39)
at
backtype.storm.security.auth.SaslTransportPlugin$TUGIWrapProcessor.process(SaslTransportPlugin.java:143)
at
org.apache.thrift7.server.TThreadPoolServer$WorkerProcess.run(TThreadPoolServer.java:286)
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
{noformat}
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