[jira] [Updated] (FLINK-25479) Changlog materialization with incremental checkpoint cannot work well in local tests

["ASF GitHub Bot (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/FLINK-25479?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

ASF GitHub Bot updated FLINK-25479:
-----------------------------------
    Labels: pull-request-available  (was: )

> Changlog materialization with incremental checkpoint cannot work well in local tests
> ------------------------------------------------------------------------------------
>
>                 Key: FLINK-25479
>                 URL: https://issues.apache.org/jira/browse/FLINK-25479
>             Project: Flink
>          Issue Type: Bug
>          Components: Runtime / Checkpointing, Runtime / State Backends, Tests
>            Reporter: Yun Tang
>            Priority: Major
>              Labels: pull-request-available
>             Fix For: 1.15.0
>
>
> Currently, changelog materialization would call RocksDB state backend's snapshot method to generate {{IncrementalRemoteKeyedStateHandle}} as ChangelogStateBackendHandleImpl's materialized artifacts. And before next materialization, it will always report the same {{IncrementalRemoteKeyedStateHandle}} as before.
> For local tests, TM would report the {{IncrementalRemoteKeyedStateHandle}} to JM via local {{LocalRpcInvocation}}. However, as {{LocalRpcInvocation}} would not de/serialize message, which leads once we register the {{IncrementalRemoteKeyedStateHandle}} on JM side, it will also add a {{sharedStateRegistry}} to the one located on TM side. For the 2nd checkpoint, TM would reported same {{IncrementalRemoteKeyedStateHandle}} with  {{sharedStateRegistry}} to JM. And it will then throw exception as it already contains a {{sharedStateRegistry}}:
> IncrementalRemoteKeyedStateHandle
> {code:java}
> public void registerSharedStates(SharedStateRegistry stateRegistry, long checkpointID) {
>        Preconditions.checkState(
>                 sharedStateRegistry != stateRegistry,
>                 "The state handle has already registered its shared states to the given registry.");
> }
> {code}
> This bug would go in distribution environment as {{IncrementalRemoteKeyedStateHandle}} would be serialized and {{sharedStateRegistry}} is tagged as {{transient}}.



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