Hello all – could use some help understanding the error below:
This shows up when I run the Apex program in local mode. Things run fine for a
short time, then I get a pause in my output and see these messages ultimately
terminating in an exception:
2016-03-17 12:54:14,458 [ProcessWideEventLoop] DEBUG internal.DataList release
- Holding
com.datatorrent.bufferserver.internal.DataList$Block@18b788b4{identifier=11.latenciesOut.2,
data=1048576, readingOffset=0, writingOffset=1048576,
starting_window=56eb0b5e00000001, ending_window=56eb0b5e00000012, refCount=3,
uniqueIdentifier=0, next=11.latenciesOut.2, future=null} in memory due to 3
references.
2016-03-17 12:54:14,459 [ServerHelper-1-1] DEBUG internal.DataList release -
Holding
com.datatorrent.bufferserver.internal.DataList$Block@18b788b4{identifier=11.latenciesOut.2,
data=1048576, readingOffset=0, writingOffset=1048576,
starting_window=56eb0b5e00000001, ending_window=56eb0b5e00000012, refCount=2,
uniqueIdentifier=0, next=11.latenciesOut.2, future=null} in memory due to 2
references.
2016-03-17 12:54:14,459 [ServerHelper-1-1] DEBUG internal.DataList release -
Holding
com.datatorrent.bufferserver.internal.DataList$Block@18b788b4{identifier=11.latenciesOut.2,
data=1048576, readingOffset=0, writingOffset=1048576,
starting_window=56eb0b5e00000001, ending_window=56eb0b5e00000012, refCount=1,
uniqueIdentifier=0, next=11.latenciesOut.2, future=null} in memory due to 1
references.
2016-03-17 12:54:14,486 [ProcessWideEventLoop] DEBUG internal.DataList release
- Holding
com.datatorrent.bufferserver.internal.DataList$Block@7abb74fb{identifier=1.output.1,
data=1048576, readingOffset=0, writingOffset=1048576,
starting_window=56eb0b5e00000011, ending_window=56eb0b5e00000012, refCount=3,
uniqueIdentifier=0, next=1.output.1, future=null} in memory due to 3 references.
2016-03-17 12:54:14,486 [ServerHelper-1-1] DEBUG internal.DataList release -
Holding
com.datatorrent.bufferserver.internal.DataList$Block@7abb74fb{identifier=1.output.1,
data=1048576, readingOffset=0, writingOffset=1048576,
starting_window=56eb0b5e00000011, ending_window=56eb0b5e00000012, refCount=2,
uniqueIdentifier=0, next=1.output.1, future=null} in memory due to 2 references.
2016-03-17 12:54:14,487 [ServerHelper-1-1] DEBUG internal.DataList release -
Holding
com.datatorrent.bufferserver.internal.DataList$Block@7abb74fb{identifier=1.output.1,
data=1048576, readingOffset=0, writingOffset=1048576,
starting_window=56eb0b5e00000011, ending_window=56eb0b5e00000012, refCount=1,
uniqueIdentifier=0, next=1.output.1, future=null} in memory due to 1 references.
2016-03-17 12:55:18,708 [ProcessWideEventLoop] WARN netlet.DefaultEventLoop
run -
Unexpected termination of {id=ProcessWideEventLoop, head=66, tail=66,
capacity=1024}
Exception in thread "ProcessWideEventLoop" java.lang.IllegalStateException:
Discarded block
com.datatorrent.bufferserver.internal.DataList$Block@20436d87{identifier=11.latenciesOut.2,
data=1048576, readingOffset=0, writingOffset=386752, starting_window=56eb0b5e00000012,
ending_window=56eb0b5e00000014, refCount=5, uniqueIdentifier=0, next=null, future=Done}
has positive reference count!
at com.datatorrent.bufferserver.internal.DataList.rewind(DataList.java:122)
at
com.datatorrent.bufferserver.server.Server.handlePublisherRequest(Server.java:321)
at
com.datatorrent.bufferserver.server.Server$UnidentifiedClient.onMessage(Server.java:408)
at
com.datatorrent.netlet.AbstractLengthPrependerClient.read(AbstractLengthPrependerClient.java:149)
at com.datatorrent.netlet.AbstractClient.read(AbstractClient.java:117)
at
com.datatorrent.netlet.DefaultEventLoop.handleSelectedKey(DefaultEventLoop.java:314)
at
com.datatorrent.netlet.OptimizedEventLoop$SelectedSelectionKeySet.forEach(OptimizedEventLoop.java:58)
at
com.datatorrent.netlet.OptimizedEventLoop.runEventLoop(OptimizedEventLoop.java:188)
at
com.datatorrent.netlet.OptimizedEventLoop.runEventLoop(OptimizedEventLoop.java:156)
at com.datatorrent.netlet.DefaultEventLoop.run(DefaultEventLoop.java:119)
at java.lang.Thread.run(Thread.java:745)
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