Tan Kim created FLINK-31963:
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Summary: java.lang.ArrayIndexOutOfBoundsException when scale down
via autoscaler
Key: FLINK-31963
URL: https://issues.apache.org/jira/browse/FLINK-31963
Project: Flink
Issue Type: Bug
Components: Kubernetes Operator, Runtime / Checkpointing
Environment: Flink: 1.17.0
FKO: 1.4.0
StateBackend: RocksDB(Genetic Incremental Checkpoint & Unaligned Checkpoint
enabled)
Reporter: Tan Kim
Attachments: jobmanager_error.txt, taskmanager_error.txt
I'm testing Autoscaler through Kubernetes Operator and I'm facing the following
issue.
As you know, when a job is scaled down through the autoscaler, the job manager
and task manager go down and then back up again.
When this happens, an index out of bounds exception is thrown and the state is
not restored from a checkpoint.
[~gyfora] told me via the Flink Slack troubleshooting channel that this is
likely an issue with Unaligned Checkpoint and not an issue with the autoscaler,
but I'm opening a ticket with Gyula for more clarification.
Please see the attached JM and TM error logs.
Thank you.
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