[jira] [Commented] (NIFI-748) If unable to find a specific Provenance event, should not fail entire search

["Joseph Witt (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/NIFI-748?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14994972#comment-14994972 ] 

Joseph Witt commented on NIFI-748:
----------------------------------

given the lack of action on this we should move it off 040.  But given the trivial nature of the fix and its implications of not being fixed I am inclined that we just knock this out.

> If unable to find a specific Provenance event, should not fail entire search
> ----------------------------------------------------------------------------
>
>                 Key: NIFI-748
>                 URL: https://issues.apache.org/jira/browse/NIFI-748
>             Project: Apache NiFi
>          Issue Type: Improvement
>          Components: Core Framework
>            Reporter: Mark Payne
>             Fix For: 0.4.0
>
>
> We have a case where running with the prov being written to a disk that can be ejected. Disk was accidentally ejected while running. Provenance Event appears to have been indexed but event is not in the repo.
> Specifically, we are reaching Line 104 of DocsReader:
> {code}
> throw new IOException("Failed to find Provenance Event " + d);
> {code}
> As a result, searching for a specific Component ID is returning an error, so we can't search on that Component ID at all (unless we shrink the time range to a time when that didn't occur).
> We should generate a warning, and notify the user that X number of events could not be found and show what we can, rather than erroring out entirely.



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