cassandra-user mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From Henrik Schröder <skro...@gmail.com>
Subject Re: Question regarding major compaction.
Date Wed, 02 May 2012 19:26:33 GMT
On Tue, May 1, 2012 at 10:00 PM, Oleg Proudnikov <olegp@cloudorange.com>wrote:

> There is this note regarding major compaction in the tuning guide:
>
> "once you run a major compaction, automatic minor compactions are no longer
> triggered frequently forcing you to manually run major compactions on a
> routine
> basis"
>
> I think, this means that unless you run major compactions regularly, the
> number
> of sstables will naturally grow leading to incremental degradation in read
> performance for update workloads.


No, that's not true. Minor automatic compactions continue in the exact same
way as before, and if you outgrow that single largest file your major
compaction resulted in, you'll be in exactly the same state as if you had
never done that major compaction at all.


/Henrik

Mime
View raw message