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From "Sebb (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (INFRA-17754) Corrupted mbox files on minotaur on Oct 25 2018
Date Fri, 25 Jan 2019 11:54:00 GMT

    [ https://issues.apache.org/jira/browse/INFRA-17754?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16752195#comment-16752195
] 

Sebb commented on INFRA-17754:
------------------------------

In all cases, the truncated message is the first of the pair.
This suggests that the delivery agent was killed (or failed) whilst the mbox was being written.
On resumption, outstanding message delivery is retried, though it looks like this starts with
the next message in the queue.

AFAICT links to duplicate messages on mail-archives will only show the last duplicate message-id
in a mailbox, so it's not possible to link to the truncated message to show the issue. Which
is good in that removal of the first truncated copy won't affect any Permalinks.

> Corrupted mbox files on minotaur on Oct 25 2018
> -----------------------------------------------
>
>                 Key: INFRA-17754
>                 URL: https://issues.apache.org/jira/browse/INFRA-17754
>             Project: Infrastructure
>          Issue Type: Bug
>          Components: Mail Archives
>            Reporter: Sebb
>            Priority: Major
>
> There are several instances of corrupted mailboxes on minotaur/mailarchive
> These all occured around 11:45 to 12:30 on Oct 25 2018.
> They all involve a duplicated mail where the second copy is truncated.
> It does not have the two CRLFs at the end.
> As a result, the From_ header line for the next message does not start in column 1 and
is not therefore recognised.
> The details are:
> bookkeeper-commits: First: 2343 Last: 3569 Missing: [3377] Duplicates: [3376]]
> bookkeeper-issues: First: 4665 Last: 14818 Missing: [13224] Duplicates: [13223]]
> flink-issues: First: 145655 Last: 208989 Missing: [197434] Duplicates: [197430]]
> flink-user: First: 17329 Last: 25090 Missing: [23926] Duplicates: [23925]]
> mynewt-commits: First: 15229 Last: 23994 Missing: [22648] Duplicates: [22649]]
> nifi-users: First: 7710 Last: 10444 Missing: [9983] Duplicates: [9982]]
> In all cases the duplicates appear to be identical messages - the only difference is
the data stamp on the From_ line. The first Received line in each pair has the same date and
SMTP Id. This suggests that the duplication occured on minotaur.
> It looks as if the mbox files can be fixed by removing the truncated duplicate.
> But why did the issue occur?



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