[jira] [Closed] (FLINK-25256) Savepoints do not work with ExternallyInducedSources

["Piotr Nowojski (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/FLINK-25256?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Piotr Nowojski closed FLINK-25256.
----------------------------------
    Fix Version/s: 1.15.0
                       (was: 1.14.6)
       Resolution: Fixed

> Savepoints do not work with ExternallyInducedSources
> ----------------------------------------------------
>
>                 Key: FLINK-25256
>                 URL: https://issues.apache.org/jira/browse/FLINK-25256
>             Project: Flink
>          Issue Type: Bug
>          Components: Runtime / Checkpointing
>    Affects Versions: 1.14.0, 1.13.3, 1.12.7
>            Reporter: Dawid Wysakowicz
>            Assignee: Arvid Heise
>            Priority: Major
>              Labels: pull-request-available, stale-assigned
>             Fix For: 1.16.0, 1.15.0
>
>
> It is not possible to take a proper savepoint with {{ExternallyInducedSource}} or {{ExternallyInducedSourceReader}} (both legacy and FLIP-27 versions). The problem is that we're hardcoding {{CheckpointOptions}} in the {{triggerHook}}.
> The outcome of current state is that operators would try to take checkpoints in the checkpoint location whereas the {{CheckpointCoordinator}} will write metadata for those states in the savepoint location.
> Moreover the situation gets even weirder (I have not checked it entirely), if we have a mixture of {{ExternallyInducedSource(s)}} and regular sources. In such a case the location and format at which the state of a particular task is persisted depends on the order of barriers arrival. If a barrier from a regular source arrives last the task takes a savepoint, on the other hand if last barrier is from an externally induced source it will take a checkpoint.



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