Stephan Ewen created FLINK-5800:
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Summary: Make sure that the CheckpointStreamFactory is
instantiated once per operator only
Key: FLINK-5800
URL: https://issues.apache.org/jira/browse/FLINK-5800
Project: Flink
Issue Type: Improvement
Components: State Backends, Checkpointing
Affects Versions: 1.2.0
Reporter: Stephan Ewen
Assignee: Stephan Ewen
Fix For: 1.3.0, 1.2.1
Previously, the {{CheckpointSteamFactory}} was created once per checkpoint, and
its repeated initialization logic (like ensuring existence of the parent
directory) caused unnecessary load on some file systems at very large scale.
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