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From "Philip Thompson (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (CASSANDRA-7019) Improve tombstone compactions
Date Thu, 23 Jun 2016 18:13:16 GMT

     [ https://issues.apache.org/jira/browse/CASSANDRA-7019?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Philip Thompson updated CASSANDRA-7019:
---------------------------------------
    Attachment: cell.tar.gz
                control.tar.gz
                none.tar.gz
                row.tar.gz

I have attached tarballs with the compaction.log, debug.log, and stress log files for each
test. I am not able to produce a functioning stress graph, probably due to their size

> Improve tombstone compactions
> -----------------------------
>
>                 Key: CASSANDRA-7019
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-7019
>             Project: Cassandra
>          Issue Type: Improvement
>          Components: Compaction
>            Reporter: Marcus Eriksson
>            Assignee: Branimir Lambov
>              Labels: compaction, fallout
>             Fix For: 3.x
>
>         Attachments: 7019-2-system.log, 7019-debug.log, cell.tar.gz, control.tar.gz,
none.tar.gz, row.tar.gz, temp-plot.html
>
>
> When there are no other compactions to do, we trigger a single-sstable compaction if
there is more than X% droppable tombstones in the sstable.
> In this ticket we should try to include overlapping sstables in those compactions to
be able to actually drop the tombstones. Might only be doable with LCS (with STCS we would
probably end up including all sstables)



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