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https://issues.apache.org/jira/browse/FLINK-5823?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15999811#comment-15999811
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ASF GitHub Bot commented on FLINK-5823:
---------------------------------------
Github user StephanEwen commented on the issue:
https://github.com/apache/flink/pull/3522
Here is a summary of why I picked a String initially for the metadata
persistence location:
> The idea of the pointer is to have a state-backend independent string
that indicates a checkpoint location. I picked a string, because the location
is ultimately passed as a string, either from the user command flink run -s
<savepoint path> or from ZooKeeper' "last completed checkpoint" entry.
>
> Introducing the StreamHandleAndPointer here spares the code from having
to reason about state backend specific file handles. We can change that at some
point, but for the breadth of changes already in this PR, this helped reduce
the scope a bit.
> Store Checkpoint Root Metadata in StateBackend (not in HA custom store)
> -----------------------------------------------------------------------
>
> Key: FLINK-5823
> URL: https://issues.apache.org/jira/browse/FLINK-5823
> Project: Flink
> Issue Type: Sub-task
> Components: State Backends, Checkpointing
> Reporter: Stephan Ewen
> Assignee: Stephan Ewen
> Fix For: 1.3.0
>
>
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