Till Rohrmann created FLINK-5085:
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Summary: Execute CheckpointCoodinator's state discard calls
asynchronously
Key: FLINK-5085
URL: https://issues.apache.org/jira/browse/FLINK-5085
Project: Flink
Issue Type: Bug
Components: State Backends, Checkpointing
Affects Versions: 1.1.3, 1.2.0
Reporter: Till Rohrmann
Assignee: Till Rohrmann
Fix For: 1.2.0, 1.1.4
The {{CheckpointCoordinator}} discards under certain circumstances pending
checkpoints or state handles. These discard operations can involve a blocking
IO operation if the underlying state handle refers to a file which has to be
deleted. In order to not block the calling thread, we should execute these
calls in a dedicated IO executor.
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