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Posted to dev@parquet.apache.org by "Qinghui Xu (JIRA)" <ji...@apache.org> on 2019/03/08 21:03:00 UTC
[jira] [Commented] (PARQUET-282) OutOfMemoryError in job commit /
ParquetMetadataConverter
[ https://issues.apache.org/jira/browse/PARQUET-282?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16788297#comment-16788297 ]
Qinghui Xu commented on PARQUET-282:
------------------------------------
This looks like not a problem from parquet-mr itself, let's close it?
> OutOfMemoryError in job commit / ParquetMetadataConverter
> ---------------------------------------------------------
>
> Key: PARQUET-282
> URL: https://issues.apache.org/jira/browse/PARQUET-282
> Project: Parquet
> Issue Type: Bug
> Components: parquet-mr
> Affects Versions: 1.6.0
> Environment: CentOS, MapR,. Scalding
> Reporter: hy5446
> Priority: Critical
>
> We're trying to write some 14B rows (about 3.6 TB in parquets) to parquet files. When our ETL job finishes, it throws this exception, and the status is "died in job commit".
> 2015-05-14 09:24:28,158 FATAL [CommitterEvent Processor #4] org.apache.hadoop.yarn.YarnUncaughtExceptionHandler: Thread Thread[CommitterEvent Processor #4,5,main] threw an Error. Shutting down now...
> java.lang.OutOfMemoryError: GC overhead limit exceeded
> at java.nio.ByteBuffer.wrap(ByteBuffer.java:373)
> at java.nio.ByteBuffer.wrap(ByteBuffer.java:396)
> at parquet.format.Statistics.setMin(Statistics.java:237)
> at parquet.format.converter.ParquetMetadataConverter.toParquetStatistics(ParquetMetadataConverter.java:243)
> at parquet.format.converter.ParquetMetadataConverter.addRowGroup(ParquetMetadataConverter.java:167)
> at parquet.format.converter.ParquetMetadataConverter.toParquetMetadata(ParquetMetadataConverter.java:79)
> at parquet.hadoop.ParquetFileWriter.serializeFooter(ParquetFileWriter.java:405)
> at parquet.hadoop.ParquetFileWriter.writeMetadataFile(ParquetFileWriter.java:433)
> at parquet.hadoop.ParquetFileWriter.writeMetadataFile(ParquetFileWriter.java:423)
> at parquet.hadoop.ParquetOutputCommitter.writeMetaDataFile(ParquetOutputCommitter.java:58)
> at parquet.hadoop.mapred.MapredParquetOutputCommitter.commitJob(MapredParquetOutputCommitter.java:43)
> at org.apache.hadoop.mapred.OutputCommitter.commitJob(OutputCommitter.java:259)
> at org.apache.hadoop.mapreduce.v2.app.commit.CommitterEventHandler$EventProcessor.handleJobCommit(CommitterEventHandler.java:253)
> at org.apache.hadoop.mapreduce.v2.app.commit.CommitterEventHandler$EventProcessor.run(CommitterEventHandler.java:216)
> at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
> at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
> at java.lang.Thread.run(Thread.java:745)
> This seems to have something to do with the _metadata file creation, as the parquet files are perfectly fine and usable. Also I'm not sure how to alleviate this (i.e. add more heap space) since the crash is outside the Map/Reduce tasks themselves but seems in the job/application controller itself.
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