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From "Till Rohrmann (JIRA)" <j...@apache.org>
Subject [jira] [Created] (FLINK-2979) RollingSink does not work with Hadoop 2.7.1
Date Thu, 05 Nov 2015 14:07:27 GMT
Till Rohrmann created FLINK-2979:
------------------------------------

             Summary: RollingSink does not work with Hadoop 2.7.1
                 Key: FLINK-2979
                 URL: https://issues.apache.org/jira/browse/FLINK-2979
             Project: Flink
          Issue Type: Bug
          Components: Streaming Connectors
    Affects Versions: 0.10
            Reporter: Till Rohrmann


When executing the {{RollingSinkFaultToleranceITCase}} with Hadoop 2.7.1, then the test either
does not finish because it's stuck in an endless restart loop with the following exception

{code}
java.lang.Exception: Could not restore checkpointed state to operators and functions
	at org.apache.flink.streaming.runtime.tasks.StreamTask.restoreStateLazy(StreamTask.java:414)
	at org.apache.flink.streaming.runtime.tasks.StreamTask.invoke(StreamTask.java:208)
	at org.apache.flink.runtime.taskmanager.Task.run(Task.java:584)
	at java.lang.Thread.run(Thread.java:745)
Caused by: java.lang.Exception: Failed to restore state to function: In-Progress file hdfs://127.0.0.1:52884/string-non-rolling-out/part-0-1
was neither moved to pending nor is still in progress.
	at org.apache.flink.streaming.api.operators.AbstractUdfStreamOperator.restoreState(AbstractUdfStreamOperator.java:165)
	at org.apache.flink.streaming.runtime.tasks.StreamTask.restoreStateLazy(StreamTask.java:406)
	... 3 more
Caused by: java.lang.RuntimeException: In-Progress file hdfs://127.0.0.1:52884/string-non-rolling-out/part-0-1
was neither moved to pending nor is still in progress.
	at org.apache.flink.streaming.connectors.fs.RollingSink.restoreState(RollingSink.java:670)
	at org.apache.flink.streaming.connectors.fs.RollingSink.restoreState(RollingSink.java:120)
	at org.apache.flink.streaming.api.operators.AbstractUdfStreamOperator.restoreState(AbstractUdfStreamOperator.java:162)
	... 4 more
{code}

or it fails because the number of read strings differs from the exactly-once result (some
strings are read multiple times).



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