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https://issues.apache.org/jira/browse/FLINK-25403?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Till Rohrmann reassigned FLINK-25403:
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Assignee: Till Rohrmann
> Make BlobServer/BlobCache compatible with local working directories
> -------------------------------------------------------------------
>
> Key: FLINK-25403
> URL: https://issues.apache.org/jira/browse/FLINK-25403
> Project: Flink
> Issue Type: Improvement
> Components: Runtime / Coordination
> Affects Versions: 1.15.0
> Reporter: Till Rohrmann
> Assignee: Till Rohrmann
> Priority: Major
> Fix For: 1.15.0
>
>
> With [FLIP-198|https://cwiki.apache.org/confluence/x/ZZiqCw] Flink processes
> can now have a working directory that they use to store "semi-persistent"
> information. The stored blobs by the {{BlobServer}} and the {{BlobCache}} can
> be candidates for such a storage because in case of a recovery we might not
> have to re-download them.
> In order to make the {{BlobServer}} and {{BlobCache}} work together with the
> local working directories, they have be able to detect corrupted blobs (e.g.
> due to process crashes when downloading blobs) and delete them. Therefore, I
> propose to let the {{BlobServer}} and {{BlobCache}} remember which blobs they
> have verified (by recomputing their checksums) and to delete those that did
> not pass.
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