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https://issues.apache.org/jira/browse/STORM-197?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13891984#comment-13891984
]
Jason Trost commented on STORM-197:
-----------------------------------
yes, I modified storm-starter's TridentWordCount to use the RandomSentenceSpout
(with metrics collection added).
https://github.com/jt6211/storm-starter/tree/STORM-197_demo
It should error out immediate when running with this error:
{noformat}
java.lang.RuntimeException: java.lang.RuntimeException:
TopologyContext.registerMetric can only be called from within overridden
IBolt::prepare() or ISpout::open() method.
at
backtype.storm.utils.DisruptorQueue.consumeBatchToCursor(DisruptorQueue.java:90)
~[storm-core-0.9.0.1.jar:na]
at
backtype.storm.utils.DisruptorQueue.consumeBatchWhenAvailable(DisruptorQueue.java:61)
~[storm-core-0.9.0.1.jar:na]
at
backtype.storm.disruptor$consume_batch_when_available.invoke(disruptor.clj:62)
~[storm-core-0.9.0.1.jar:na]
at
backtype.storm.daemon.executor$fn__3498$fn__3510$fn__3557.invoke(executor.clj:730)
~[storm-core-0.9.0.1.jar:na]
at backtype.storm.util$async_loop$fn__444.invoke(util.clj:403)
~[storm-core-0.9.0.1.jar:na]
at clojure.lang.AFn.run(AFn.java:24) [clojure-1.4.0.jar:na]
at java.lang.Thread.run(Thread.java:722) [na:1.7.0_17]
Caused by: java.lang.RuntimeException: TopologyContext.registerMetric can only
be called from within overridden IBolt::prepare() or ISpout::open() method.
at
backtype.storm.task.TopologyContext.registerMetric(TopologyContext.java:213)
~[storm-core-0.9.0.1.jar:na]
at
storm.starter.spout.RandomSentenceSpout.open(RandomSentenceSpout.java:26)
~[classes/:na]
at
storm.trident.spout.RichSpoutBatchExecutor$RichSpoutEmitter.emitBatch(RichSpoutBatchExecutor.java:88)
~[storm-core-0.9.0.1.jar:na]
at
storm.trident.spout.TridentSpoutExecutor.execute(TridentSpoutExecutor.java:65)
~[storm-core-0.9.0.1.jar:na]
at
storm.trident.topology.TridentBoltExecutor.execute(TridentBoltExecutor.java:352)
~[storm-core-0.9.0.1.jar:na]
at
backtype.storm.daemon.executor$fn__3498$tuple_action_fn__3500.invoke(executor.clj:615)
~[storm-core-0.9.0.1.jar:na]
at
backtype.storm.daemon.executor$mk_task_receiver$fn__3421.invoke(executor.clj:383)
~[storm-core-0.9.0.1.jar:na]
at
backtype.storm.disruptor$clojure_handler$reify__2962.onEvent(disruptor.clj:43)
~[storm-core-0.9.0.1.jar:na]
at
backtype.storm.utils.DisruptorQueue.consumeBatchToCursor(DisruptorQueue.java:87)
~[storm-core-0.9.0.1.jar:na]
... 6 common frames omitted
{noformat}
> registering metrics in an IRichSpout used in Trident Topology throws an
> Exception
> ---------------------------------------------------------------------------------
>
> Key: STORM-197
> URL: https://issues.apache.org/jira/browse/STORM-197
> Project: Apache Storm (Incubating)
> Issue Type: Bug
> Reporter: Jason Trost
>
> Because of how the RichSpoutBatchExecutor initializes and calls open() of the
> IRichSpout, any metric registrations cause an exception to be thrown. See
> stacktrace below.
> java.lang.RuntimeException: java.lang.RuntimeException:
> TopologyContext.registerMetric can only be called from within overridden
> IBolt::prepare() or ISpout::open() method.
> at
> backtype.storm.utils.DisruptorQueue.consumeBatchToCursor(DisruptorQueue.java:90)
> at
> backtype.storm.utils.DisruptorQueue.consumeBatchWhenAvailable(DisruptorQueue.java:61)
> at
> backtype.storm.disruptor$consume_batch_when_available.invoke(disruptor.clj:62)
> at
> backtype.storm.daemon.executor$fn__3498$fn__3510$fn__3557.invoke(executor.clj:730)
> at backtype.storm.util$async_loop$fn__444.invoke(util.clj:403)
> at clojure.lang.AFn.run(AFn.java:24)
> at java.lang.Thread.run(Thread.java:722)
> Caused by: java.lang.RuntimeException: TopologyContext.registerMetric can
> only be called from within overridden IBolt::prepare() or ISpout::open()
> method.
> at
> backtype.storm.task.TopologyContext.registerMetric(TopologyContext.java:213)
> at com.XXXXXXX.spouts.amqp.AMQPSpout.open(AMQPSpout.java:232)
> at
> storm.trident.spout.$RichSpoutEmitter.emitBatch(RichSpoutBatchExecutor.java:88)
> at
> storm.trident.spout.TridentSpoutExecutor.execute(TridentSpoutExecutor.java:65)
> at
> storm.trident.topology.TridentBoltExecutor.execute(TridentBoltExecutor.java:352)
> at
> backtype.storm.daemon.executor$fn__3498$tuple_action_fn__3500.invoke(executor.clj:615)
> at
> backtype.storm.daemon.executor$mk_task_receiver$fn__3421.invoke(executor.clj:383)
> at
> backtype.storm.disruptor$clojure_handler$reify__2962.onEvent(disruptor.clj:43)
> at
> backtype.storm.utils.DisruptorQueue.consumeBatchToCursor(DisruptorQueue.java:87)
> ... 6 more
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