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https://issues.apache.org/jira/browse/FLUME-3406?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17504412#comment-17504412
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Matt Sicker commented on FLUME-3406:
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{quote}It is used simply to verify that what was read from the checkpoint
matches what was written.
{quote}
That's literally what integrity means.
> Inflight events in file channel should not be using MD5 for integrity purposes
> ------------------------------------------------------------------------------
>
> Key: FLUME-3406
> URL: https://issues.apache.org/jira/browse/FLUME-3406
> Project: Flume
> Issue Type: Improvement
> Components: File Channel
> Reporter: Matt Sicker
> Priority: Major
>
> FlumeEventQueue's inner class InflightEventWrapper uses MD5 for calculating a
> digest of inflight events. MD5 has been considered unsuitable for
> cryptographic usage such as for integrity checks for many years now. This
> should migrate to SHA-256 at least.
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