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https://issues.apache.org/jira/browse/FLUME-2595?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14288009#comment-14288009
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Hari Shreedharan commented on FLUME-2595:
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To be fair, I have not seen replay speed of more than a few minutes after
FLUME-2155 (which removed a specific edge case that cause the hours-long replay
in some cases), but did cause the normal case to become worse - which was fixed
by FLUME-2450. So the current replay speed should be in the seconds-range.
Of course, doing a checkpoint would definitely improve performance on startup.
[~roshan_naik] - Are you planning to work on this one?
> Add option to checkpoint on file channel shutdown
> -------------------------------------------------
>
> Key: FLUME-2595
> URL: https://issues.apache.org/jira/browse/FLUME-2595
> Project: Flume
> Issue Type: Bug
> Components: File Channel
> Affects Versions: v1.5.1
> Reporter: Roshan Naik
> Labels: channel
>
> Restarting a File channel based agent can take very long, a few hours to
> evens days in some cases. The reason being the slow replay performance.
> By having the file channel checkpoint on shutdown, this long replay can
> avoided as there will be nothing to replay on startup.
> A small hit (a few seconds perhaps) will be observed on shutdown to perform
> the checkpoint.
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