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https://issues.apache.org/jira/browse/ACCUMULO-4832?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16380533#comment-16380533
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Keith Turner commented on ACCUMULO-4832:
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I ran continuous ingest for 1 hour on 8 nodes with this change (commit
3df4acc7f3662d16eb752fdf46cdfd6285f54512) and saw no warning. I took the
instance I had setup for 1.7.4-RC0 testing and replaced all of the jars.
> Seeing warnings when write ahead log changes.
> ---------------------------------------------
>
> Key: ACCUMULO-4832
> URL: https://issues.apache.org/jira/browse/ACCUMULO-4832
> Project: Accumulo
> Issue Type: Bug
> Reporter: Keith Turner
> Assignee: Ivan Bella
> Priority: Blocker
> Labels: pull-request-available
> Fix For: 1.7.4, 1.9.0, 2.0.0
>
> Time Spent: 2h 50m
> Remaining Estimate: 0h
>
> While running continuous ingest against 1.7.4-rc0 I saw a lot of warning like
> the followng.
> {noformat}
> 2018-02-26 17:51:58,189 [log.TabletServerLogger] WARN : Logs closed while
> writing, retrying attempt 1 (suppressing retry messages for 180000ms)
> 2018-02-26 17:51:58,724 [log.TabletServerLogger] WARN : Logs closed while
> writing, retrying attempt 1 (suppressing retry messages for 180000ms)
> 2018-02-26 17:51:58,940 [log.TabletServerLogger] WARN : Logs closed while
> writing, retrying attempt 1 (suppressing retry messages for 180000ms)
> 2018-02-26 17:51:59,226 [log.TabletServerLogger] WARN : Logs closed while
> writing, retrying attempt 1 (suppressing retry messages for 180000ms)
> 2018-02-26 17:51:59,227 [log.TabletServerLogger] WARN : Logs closed while
> writing, retrying attempt 1 (suppressing retry messages for 180000ms)
> 2018-02-26 17:51:59,227 [log.TabletServerLogger] WARN : Logs closed while
> writing, retrying attempt 1 (suppressing retry messages for 180000ms)
> {noformat}
>
> The warning are generated by [TabletServerLogger.java line
> 341|https://github.com/apache/accumulo/blob/4e91215f101362ef206e9f213b4d8d12b3f6e0e2/server/tserver/src/main/java/org/apache/accumulo/tserver/log/TabletServerLogger.java#L341]
> when a write ahead log is closed. Write ahead logs are closed as part of
> normal operations as seen on [TabletServerLogger.java line
> 386|https://github.com/apache/accumulo/blob/4e91215f101362ef206e9f213b4d8d12b3f6e0e2/server/tserver/src/main/java/org/apache/accumulo/tserver/log/TabletServerLogger.java#L386].
> There should not be a warning when this happens. This is caused by changes
> made for ACCUMULO-4777. Before these changes this event was logged at debug.
> At this time, these changes have not been released. It would be nice to fix
> this before releasing 1.7.4
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