[STORM-1672] Stats not get class cast exception

• Type: Bug
• Status: Resolved
• Priority: Critical
• Resolution: Fixed
• Affects Version/s: 2.0.0
• Fix Version/s: 2.0.0
• Component/s: storm-core
• Assignee: Robert Joseph Evans
• Reporter: Robert Joseph Evans
• Created: 31/Mar/16 19:24
• Updated: 16/May/16 06:32
• Resolved: 16/May/16 06:32

Description

Component page in UI

2016-03-31 14:21:44.576 o.a.s.t.s.AbstractNonblockingServer$FrameBuffer [ERROR] Unexpected throwable while invoking!
java.lang.ClassCastException: java.lang.Long cannot be cast to java.util.Map
        at org.apache.storm.stats.StatsUtil.filterSysStreams(StatsUtil.java:1696)
        at org.apache.storm.stats.StatsUtil.aggPreMergeCompPageBolt(StatsUtil.java:240)
        at org.apache.storm.stats.StatsUtil.aggCompExecStats(StatsUtil.java:1130)
        at org.apache.storm.stats.StatsUtil.aggregateCompStats(StatsUtil.java:1108)
        at org.apache.storm.stats.StatsUtil.aggCompExecsStats(StatsUtil.java:1236)
        at org.apache.storm.daemon.nimbus$fn__3490$exec_fn__789__auto__$reify__3519.getComponentPageInfo(nimbus.clj:2130)
        at org.apache.storm.generated.Nimbus$Processor$getComponentPageInfo.getResult(Nimbus.java:3826)
        at org.apache.storm.generated.Nimbus$Processor$getComponentPageInfo.getResult(Nimbus.java:3810)
        at org.apache.storm.thrift.ProcessFunction.process(ProcessFunction.java:39)
        at org.apache.storm.thrift.TBaseProcessor.process(TBaseProcessor.java:39)
        at org.apache.storm.security.auth.SimpleTransportPlugin$SimpleWrapProcessor.process(SimpleTransportPlugin.java:158)
        at org.apache.storm.thrift.server.AbstractNonblockingServer$FrameBuffer.invoke(AbstractNonblockingServer.java:518)
        at org.apache.storm.thrift.server.Invocation.run(Invocation.java:18)
        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:744)