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https://issues.apache.org/jira/browse/PARQUET-220?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14379106#comment-14379106
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Konstantin Shaposhnikov commented on PARQUET-220:
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https://github.com/apache/incubator-parquet-mr/pull/152
> Unnecessary warning in ParquetRecordReader.initialize
> -----------------------------------------------------
>
> Key: PARQUET-220
> URL: https://issues.apache.org/jira/browse/PARQUET-220
> Project: Parquet
> Issue Type: Improvement
> Affects Versions: parquet-mr_1.6.0
> Reporter: Konstantin Shaposhnikov
>
> When reading a parquet file using spark 1.3.0 lots of warnings are printed in
> the log:
> {noformat}
> WARNING: parquet.hadoop.ParquetRecordReader: Can not initialize counter due
> to context is not a instance of TaskInputOutputContext, but is
> org.apache.hadoop.mapreduce.task.TaskAttemptContextImpl
> {noformat}
> I have checked the source of ParquetRecordReader and found that while it
> checks for context to be TaskInputOutputContext it seems to never actually
> rely on this fact.
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