Take a look at the following article:
http://www.datastax.com/dev/blog/when-to-use-leveled-compaction
You'll want to monitor your IOPS for a while to make sure you can spare the
overhead before you try it. Certainly one at a time on column families and
only where the use case makes sense given the
Hello,
I also have some doubts about changing to leveled compaction:
1) Is this change computationally expensive? My sstables have around 7gb of
data, I'm afraid the nodes won't handle the pressure of compactions, maybe
dying by OOM or getting an extremely high latency during the compactions...
Thanks much Rob!
Brian
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On Thu, Aug 22, 2013 at 5:24 PM, brianchang wrote:
> One more follow-up question: can we freely switch back to
> SizeTieredCompactionStrategy later (and also resume running major
> compaction
> cron job), if we find LeveledCompactionStrategy does not end up with better
> performance (e.g., if we
Thanks much Edward!
One more follow-up question: can we freely switch back to
SizeTieredCompactionStrategy later (and also resume running major compaction
cron job), if we find LeveledCompactionStrategy does not end up with better
performance (e.g., if we should experience those intensive I/O prob
No . Leveled tables can not be manually compacted.
On Thursday, August 22, 2013, brianchang wrote:
> Hi, Cassandra experts,
>
> Currently we are running major compaction (triggered daily by cron job),
as
> our application continue creating new columns in each row with old columns
> automatically
