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https://issues.apache.org/jira/browse/FLINK-9407?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16535987#comment-16535987
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ASF GitHub Bot commented on FLINK-9407:
---------------------------------------
Github user hequn8128 commented on the issue:
https://github.com/apache/flink/pull/6075
Hi @zhangminglei , The main reason to implement the `CheckpointedFuntion `
is you have kept a buffer in you Writer class. The buffer is a memory buffer
which will suffer data loss during job failover.
> Support orc rolling sink writer
> -------------------------------
>
> Key: FLINK-9407
> URL: https://issues.apache.org/jira/browse/FLINK-9407
> Project: Flink
> Issue Type: New Feature
> Components: filesystem-connector
> Reporter: zhangminglei
> Assignee: zhangminglei
> Priority: Major
> Labels: patch-available, pull-request-available
>
> Currently, we only support {{StringWriter}}, {{SequenceFileWriter}} and
> {{AvroKeyValueSinkWriter}}. I would suggest add an orc writer for rolling
> sink.
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