[ 
https://issues.apache.org/jira/browse/STORM-770?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Stas Levin updated STORM-770:
-----------------------------
    Description: 
We got the following exception after our topology had been up for ~2 days, and 
I was wondering if it might be related. 
Looks like "task" in "mk-transfer-fn" is null, making "(.add remote 
(TaskMessage. task (.serialize serializer tuple)))" fail on NPE 
(worker.clj:128, storm-core-0.9.2-incubating.jar)

java.lang.RuntimeException: java.lang.NullPointerException
at 
backtype.storm.utils.DisruptorQueue.consumeBatchToCursor(DisruptorQueue.java:128)
 ~[storm-core-0.9.2-incubating.jar:0.9.2-incubating]
at 
backtype.storm.utils.DisruptorQueue.consumeBatchWhenAvailable(DisruptorQueue.java:99)
 ~[storm-core-0.9.2-incubating.jar:0.9.2-incubating]
at 
backtype.storm.disruptor$consume_batch_when_available.invoke(disruptor.clj:80) 
~[storm-core-0.9.2-incubating.jar:0.9.2-incubating]
at backtype.storm.disruptor$consume_loop_STAR_$fn__758.invoke(disruptor.clj:94) 
~[storm-core-0.9.2-incubating.jar:0.9.2-incubating]
at backtype.storm.util$async_loop$fn__457.invoke(util.clj:431) 
~[storm-core-0.9.2-incubating.jar:0.9.2-incubating]
at clojure.lang.AFn.run(AFn.java:24) [clojure-1.5.1.jar:na]
at java.lang.Thread.run(Thread.java:745) [na:1.7.0_72]
Caused by: java.lang.NullPointerException: null
at clojure.lang.RT.intCast(RT.java:1087) ~[clojure-1.5.1.jar:na]
at backtype.storm.daemon.worker$mk_transfer_fn$fn__5748.invoke(worker.clj:128) 
~[storm-core-0.9.2-incubating.jar:0.9.2-incubating]
at 
backtype.storm.daemon.executor$start_batch_transfer_GT_worker_handler_BANG$fn__5483.invoke(executor.clj:256)
 ~[storm-core-0.9.2-incubating.jar:0.9.2-incubating]
at 
backtype.storm.disruptor$clojure_handler$reify__745.onEvent(disruptor.clj:58) 
~[storm-core-0.9.2-incubating.jar:0.9.2-incubating]
at 
backtype.storm.utils.DisruptorQueue.consumeBatchToCursor(DisruptorQueue.java:125)
 ~[storm-core-0.9.2-incubating.jar:0.9.2-incubating]
... 6 common frames omitted,java.lang.RuntimeException: 
java.lang.NullPointerException

Any ideas?

P.S.
Also saw it here: 
http://mail-archives.apache.org/mod_mbox/storm-user/201501.mbox/%3CCABcMBhCusXXU=v1e66wfuatgyh1euqnd1siog65-tp8xlwx...@mail.gmail.com%3E

  was:
We got the following exception after our topology had been up for ~2 days, and 
I was wondering if it might be related. 
Looks like "task" in "mk-transfer-fn" is null, making "(.add remote 
(TaskMessage. task (.serialize serializer tuple)))" fail on NPE 
(worker.clj:128, storm-core-0.9.2-incubating.jar)
java.lang.RuntimeException: java.lang.NullPointerException
at 
backtype.storm.utils.DisruptorQueue.consumeBatchToCursor(DisruptorQueue.java:128)
 ~[storm-core-0.9.2-incubating.jar:0.9.2-incubating]
at 
backtype.storm.utils.DisruptorQueue.consumeBatchWhenAvailable(DisruptorQueue.java:99)
 ~[storm-core-0.9.2-incubating.jar:0.9.2-incubating]
at 
backtype.storm.disruptor$consume_batch_when_available.invoke(disruptor.clj:80) 
~[storm-core-0.9.2-incubating.jar:0.9.2-incubating]
at backtype.storm.disruptor$consume_loop_STAR_$fn__758.invoke(disruptor.clj:94) 
~[storm-core-0.9.2-incubating.jar:0.9.2-incubating]
at backtype.storm.util$async_loop$fn__457.invoke(util.clj:431) 
~[storm-core-0.9.2-incubating.jar:0.9.2-incubating]
at clojure.lang.AFn.run(AFn.java:24) [clojure-1.5.1.jar:na]
at java.lang.Thread.run(Thread.java:745) [na:1.7.0_72]
Caused by: java.lang.NullPointerException: null
at clojure.lang.RT.intCast(RT.java:1087) ~[clojure-1.5.1.jar:na]
at backtype.storm.daemon.worker$mk_transfer_fn$fn__5748.invoke(worker.clj:128) 
~[storm-core-0.9.2-incubating.jar:0.9.2-incubating]
at 
backtype.storm.daemon.executor$start_batch_transfer_GT_worker_handler_BANG$fn__5483.invoke(executor.clj:256)
 ~[storm-core-0.9.2-incubating.jar:0.9.2-incubating]
at 
backtype.storm.disruptor$clojure_handler$reify__745.onEvent(disruptor.clj:58) 
~[storm-core-0.9.2-incubating.jar:0.9.2-incubating]
at 
backtype.storm.utils.DisruptorQueue.consumeBatchToCursor(DisruptorQueue.java:125)
 ~[storm-core-0.9.2-incubating.jar:0.9.2-incubating]
... 6 common frames omitted,java.lang.RuntimeException: 
java.lang.NullPointerException

Any ideas?

P.S.
Also saw it here: 
http://mail-archives.apache.org/mod_mbox/storm-user/201501.mbox/%3CCABcMBhCusXXU=v1e66wfuatgyh1euqnd1siog65-tp8xlwx...@mail.gmail.com%3E


> NullPointerException in consumeBatchToCursor
> --------------------------------------------
>
>                 Key: STORM-770
>                 URL: https://issues.apache.org/jira/browse/STORM-770
>             Project: Apache Storm
>          Issue Type: Bug
>    Affects Versions: 0.9.2-incubating
>            Reporter: Stas Levin
>
> We got the following exception after our topology had been up for ~2 days, 
> and I was wondering if it might be related. 
> Looks like "task" in "mk-transfer-fn" is null, making "(.add remote 
> (TaskMessage. task (.serialize serializer tuple)))" fail on NPE 
> (worker.clj:128, storm-core-0.9.2-incubating.jar)
> java.lang.RuntimeException: java.lang.NullPointerException
> at 
> backtype.storm.utils.DisruptorQueue.consumeBatchToCursor(DisruptorQueue.java:128)
>  ~[storm-core-0.9.2-incubating.jar:0.9.2-incubating]
> at 
> backtype.storm.utils.DisruptorQueue.consumeBatchWhenAvailable(DisruptorQueue.java:99)
>  ~[storm-core-0.9.2-incubating.jar:0.9.2-incubating]
> at 
> backtype.storm.disruptor$consume_batch_when_available.invoke(disruptor.clj:80)
>  ~[storm-core-0.9.2-incubating.jar:0.9.2-incubating]
> at 
> backtype.storm.disruptor$consume_loop_STAR_$fn__758.invoke(disruptor.clj:94) 
> ~[storm-core-0.9.2-incubating.jar:0.9.2-incubating]
> at backtype.storm.util$async_loop$fn__457.invoke(util.clj:431) 
> ~[storm-core-0.9.2-incubating.jar:0.9.2-incubating]
> at clojure.lang.AFn.run(AFn.java:24) [clojure-1.5.1.jar:na]
> at java.lang.Thread.run(Thread.java:745) [na:1.7.0_72]
> Caused by: java.lang.NullPointerException: null
> at clojure.lang.RT.intCast(RT.java:1087) ~[clojure-1.5.1.jar:na]
> at 
> backtype.storm.daemon.worker$mk_transfer_fn$fn__5748.invoke(worker.clj:128) 
> ~[storm-core-0.9.2-incubating.jar:0.9.2-incubating]
> at 
> backtype.storm.daemon.executor$start_batch_transfer_GT_worker_handler_BANG$fn__5483.invoke(executor.clj:256)
>  ~[storm-core-0.9.2-incubating.jar:0.9.2-incubating]
> at 
> backtype.storm.disruptor$clojure_handler$reify__745.onEvent(disruptor.clj:58) 
> ~[storm-core-0.9.2-incubating.jar:0.9.2-incubating]
> at 
> backtype.storm.utils.DisruptorQueue.consumeBatchToCursor(DisruptorQueue.java:125)
>  ~[storm-core-0.9.2-incubating.jar:0.9.2-incubating]
> ... 6 common frames omitted,java.lang.RuntimeException: 
> java.lang.NullPointerException
> Any ideas?
> P.S.
> Also saw it here: 
> http://mail-archives.apache.org/mod_mbox/storm-user/201501.mbox/%3CCABcMBhCusXXU=v1e66wfuatgyh1euqnd1siog65-tp8xlwx...@mail.gmail.com%3E



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