Aljoscha Krettek created FLINK-8807:
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Summary: ZookeeperCompleted checkpoint store can get stuck in
infinite loop
Key: FLINK-8807
URL: https://issues.apache.org/jira/browse/FLINK-8807
Project: Flink
Issue Type: Bug
Components: State Backends, Checkpointing
Affects Versions: 1.5.0
Reporter: Aljoscha Krettek
Fix For: 1.5.0
This code:
https://github.com/apache/flink/blob/9071e3befb8c279f73c3094c9f6bddc0e7cce9e5/flink-runtime/src/main/java/org/apache/flink/runtime/checkpoint/ZooKeeperCompletedCheckpointStore.java#L201
can be stuck forever if at least one checkpoint is not readable because
{{CompletedCheckpoint}} does not have a proper {{equals()}}/{{hashCode()}}
anymore.
We have to fix this and also add a unit test that verifies the loop still works
if we make one snapshot unreadable.
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