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https://issues.apache.org/jira/browse/CASSANDRA-6904?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14142983#comment-14142983
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Benedict commented on CASSANDRA-6904:
-------------------------------------

In 2.1 we should be using the header information to ensure we only replay each 
segment once.

I also think this is a good opportunity in 2.1 to drop in support for native 
archival, with which we could easily avoid backing up twice. The current 
situation feels a little clunky to me, since if we have a bug or other problem 
causing startup to crash we might repeatedly fill up the archive disk without 
the operator realising. That could be a follow up ticket, I'm fine either way, 
but it's really not a very challenging feature to insert and helps make this 
much more sane.

> commitlog segments may not be archived after restart
> ----------------------------------------------------
>
>                 Key: CASSANDRA-6904
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-6904
>             Project: Cassandra
>          Issue Type: Bug
>          Components: Core
>            Reporter: Jonathan Ellis
>            Assignee: Sam Tunnicliffe
>             Fix For: 2.0.11, 2.1.1
>
>         Attachments: 2.0-6904.txt, 2.1-6904.txt
>
>
> commitlog segments are archived when they are full, so the current active 
> segment will not be archived on restart (and its contents will not be 
> available for pitr).



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