java.lang.RuntimeException

java.util.ConcurrentModificationException at backtype.storm.utils.DisruptorQueue.consumeBatchToCursor( DisruptorQueue.java:87) at backtype.storm.utils.DisruptorQueue.consumeBatchWhenAvailable( DisruptorQueue.java:58) at backtype.storm.disruptor$consume_batch_when_available.invoke(disruptor.clj:62) at backtype.storm.daemon.executor$fn__4050$fn__4059$fn__4106.invoke(executor.clj:658)

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  • Stack trace

    • java.lang.RuntimeException: java.util.ConcurrentModificationException at backtype.storm.utils.DisruptorQueue.consumeBatchToCursor( DisruptorQueue.java:87) at backtype.storm.utils.DisruptorQueue.consumeBatchWhenAvailable( DisruptorQueue.java:58) at backtype.storm.disruptor$consume_batch_when_available.invoke(disruptor.clj:62) at backtype.storm.daemon.executor$fn__4050$fn__4059$fn__4106.invoke(executor.clj:658) at backtype.storm.util$async_loop$fn__465.invoke(util.clj:377) at clojure.lang.AFn.run(AFn.java:24) at java.lang.Thread.run(Thread.java:680) Caused by: java.util.ConcurrentModificationException at java.util.AbstractList$Itr.checkForComodification(AbstractList.java:372) at java.util.AbstractList$Itr.next(AbstractList.java:343) at java.util.AbstractCollection.toString(AbstractCollection.java:421) at storm.starter.tools.Rankings.toString(Rankings.java:91) at java.lang.String.valueOf(String.java:2826) at java.io.PrintStream.println(PrintStream.java:771) at storm.starter.bolt.PrintTrends.execute(PrintTrends.java:21)

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