[
https://issues.apache.org/jira/browse/NIFI-7346?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17079596#comment-17079596
]
ASF subversion and git services commented on NIFI-7346:
-------------------------------------------------------
Commit c99a1870184087a5a3ff3e7ac032c4c0f98a352b in nifi's branch
refs/heads/master from Mark Payne
[ https://gitbox.apache.org/repos/asf?p=nifi.git;h=c99a187 ]
NIFI-7346: Ensure that the Provenance Repository doesn't delete the Active
Event File
> Provenance Repository can stop producing data and become empty
> --------------------------------------------------------------
>
> Key: NIFI-7346
> URL: https://issues.apache.org/jira/browse/NIFI-7346
> Project: Apache NiFi
> Issue Type: Bug
> Components: Core Framework
> Reporter: Mark Payne
> Assignee: Mark Payne
> Priority: Major
> Fix For: 1.12.0
>
> Time Spent: 0.5h
> Remaining Estimate: 0h
>
> The Provenance Repository is designed to periodically age off old data. This
> is done by looking at the Last Modified Time for all event files, and then
> removing any file whose Last Modified Time is longer than the configured
> "nifi.provenance.repository.max.storage.time" time.
> However, it does this without first checking if the event file is the
> "active" event file. As a result, it can delete the event file while it is
> being written to. If this happens, on Linux and OSX, the delete will succeed
> and any further writes to the underlying file handle will simply disappear.
> And checking the size of the file will always return 0.
> As a result, the Event File will never roll over because it never reaches the
> max size. And it doesn't roll over based on time due to NIFI-7339. As a
> result, all data will be aged off from the Provenance Repository and no new
> data will be added until restart.
--
This message was sent by Atlassian Jira
(v8.3.4#803005)
