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https://issues.apache.org/jira/browse/FLINK-20504?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17247849#comment-17247849
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Rui Li commented on FLINK-20504:
--------------------------------
If we look at
[StreamTask::disposeAllOperators|https://github.com/apache/flink/blob/release-1.11.1/flink-streaming-java/src/main/java/org/apache/flink/streaming/runtime/tasks/StreamTask.java#L703]
during {{cleanUpInvoke}}, this should only be an error log. So I wonder
whether this cause job failure or just a log message?
> NPE when writing to hive and fail over happened
> -----------------------------------------------
>
> Key: FLINK-20504
> URL: https://issues.apache.org/jira/browse/FLINK-20504
> Project: Flink
> Issue Type: Bug
> Components: Connectors / Hive
> Affects Versions: 1.11.1
> Reporter: zhuxiaoshang
> Priority: Major
>
> When writing to hive and fail over happened,I got the following exception
> {code:java}
> java.lang.NullPointerException
> at
> org.apache.parquet.hadoop.InternalParquetRecordWriter.flushRowGroupToStore(InternalParquetRecordWriter.java:165)
> at
> org.apache.parquet.hadoop.InternalParquetRecordWriter.close(InternalParquetRecordWriter.java:114)
> at
> org.apache.parquet.hadoop.ParquetRecordWriter.close(ParquetRecordWriter.java:165)
> at
> org.apache.hadoop.hive.ql.io.parquet.write.ParquetRecordWriterWrapper.close(ParquetRecordWriterWrapper.java:103)
> at
> org.apache.hadoop.hive.ql.io.parquet.write.ParquetRecordWriterWrapper.close(ParquetRecordWriterWrapper.java:120)
> at
> org.apache.flink.connectors.hive.write.HiveBulkWriterFactory$1.dispose(HiveBulkWriterFactory.java:61)
> at
> org.apache.flink.formats.hadoop.bulk.HadoopPathBasedPartFileWriter.dispose(HadoopPathBasedPartFileWriter.java:79)
> at
> org.apache.flink.streaming.api.functions.sink.filesystem.Bucket.disposePartFile(Bucket.java:235)
> at java.util.HashMap$Values.forEach(HashMap.java:981)
> at
> org.apache.flink.streaming.api.functions.sink.filesystem.Buckets.close(Buckets.java:318)
> at
> org.apache.flink.streaming.api.functions.sink.filesystem.StreamingFileSinkHelper.close(StreamingFileSinkHelper.java:108)
> at
> org.apache.flink.table.filesystem.stream.StreamingFileWriter.dispose(StreamingFileWriter.java:177)
> at
> org.apache.flink.streaming.runtime.tasks.StreamTask.disposeAllOperators(StreamTask.java:703)
> at
> org.apache.flink.streaming.runtime.tasks.StreamTask.cleanUpInvoke(StreamTask.java:635)
> at
> org.apache.flink.streaming.runtime.tasks.StreamTask.invoke(StreamTask.java:542)
> at org.apache.flink.runtime.taskmanager.Task.doRun(Task.java:721)
> at org.apache.flink.runtime.taskmanager.Task.run(Task.java:546)
> at java.lang.Thread.run(Thread.java:748)
> {code}
> But it does not reproduce every time.
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