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https://issues.apache.org/jira/browse/FLINK-3718?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15249953#comment-15249953
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ASF GitHub Bot commented on FLINK-3718:
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Github user aljoscha closed the pull request at:
https://github.com/apache/flink/pull/1879
> Add Option For Completely Async Backup in RocksDB State Backend
> ---------------------------------------------------------------
>
> Key: FLINK-3718
> URL: https://issues.apache.org/jira/browse/FLINK-3718
> Project: Flink
> Issue Type: Bug
> Components: Streaming
> Reporter: Aljoscha Krettek
> Assignee: Aljoscha Krettek
>
> Right now, the snapshotting for RocksDB has a synchronous part where a backup
> of the RocksDB database is drawn and an asynchronous part where this backup
> is written to HDFS.
> We should add an option that uses the snapshot feature of RocksDB to get an
> iterator over all keys at a set point in time. The iterator can be used to
> store everything to HDFS. Normal operation can continue while we store the
> keys. This makes the snapshot completely asynchronous.
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