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Posted to issues@hive.apache.org by "gabrywu (Jira)" <ji...@apache.org> on 2020/08/27 06:45:01 UTC

[jira] [Comment Edited] (HIVE-16352) Ability to skip or repair out of sync blocks with HIVE at runtime

    [ https://issues.apache.org/jira/browse/HIVE-16352?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17185647#comment-17185647 ] 

gabrywu edited comment on HIVE-16352 at 8/27/20, 6:44 AM:
----------------------------------------------------------

Yes, it's better to repair the Avro files. [~belugabehr], [~navdeepniku]

However, sometimes the Avro files are generated by real-time pipelines, such as Flink and Spark Streaming. It's difficult to re-generate the Avro files, and it's OK to discard the bad Avro blocks. In this case, we need a variable which indicates to skip the bad blocks.


was (Author: gabry.wu):
Yes, it's better to repair the Avro files. [~belugabehr], [~navdeepniku]

However, sometimes the Avro files are generated by real-time pipelines, such as Flink and Spark Streaming. It's difficult to re-generate the Avro files, and it's OK to discard the bad Avro blocks. In this case, we need a variable which indicates to skip the bad block.

> Ability to skip or repair out of sync blocks with HIVE at runtime
> -----------------------------------------------------------------
>
>                 Key: HIVE-16352
>                 URL: https://issues.apache.org/jira/browse/HIVE-16352
>             Project: Hive
>          Issue Type: New Feature
>            Reporter: Navdeep Poonia
>            Priority: Major
>              Labels: pull-request-available
>          Time Spent: 0.5h
>  Remaining Estimate: 0h
>
> When a file is corrupted it raises the error java.io.IOException: Invalid sync! with hive.
>  Can we have some functionality to skip or repair such blocks at runtime to make avro more error resilient in case of data corruption.
>  Error: java.io.IOException: java.io.IOException: java.io.IOException: While processing file s3n://<bucket>/navdeepp/warehouse/avro_test/354dc34474404f4bbc0d8013fc8e6e4b_000042. java.io.IOException: Invalid sync!
>  at org.apache.hadoop.hive.io.HiveIOExceptionHandlerChain.handleRecordReaderNextException(HiveIOExceptionHandlerChain.java:121)
>  at org.apache.hadoop.hive.io.HiveIOExceptionHandlerUtil.handleRecordReaderNextException(HiveIOExceptionHandlerUtil.java:77)
>  at org.apache.hadoop.hive.shims.HadoopShimsSecure$CombineFileRecordReader.doNextWithExceptionHandler(HadoopShimsSecure.java:334)



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