Otis Gospodnetic 2012-12-12, 20:15
Kevin Odell 2012-12-12, 20:19
-Re: How to know it's time for a major compaction?
Ted Yu 2012-12-12, 20:22
bq. they will major compact any region the balancer has moved.
Interesting. Do they achieve this through scripting ?
I think HBase can perform some follow-on action after region movement.
On Wed, Dec 12, 2012 at 12:19 PM, Kevin O'dell <[EMAIL PROTECTED]>wrote:
> I think it depends on your use case. Some use cases are extremely
> dependent on locality and latency, so they will major compact any region
> the balancer has moved. Some people follow the HFile count and will
> trigger a major when there are x amount of files. Others will just follow
> best practices and do it daily. Some do very little writes and only
> compact once a week.
> On Wed, Dec 12, 2012 at 3:15 PM, Otis Gospodnetic <
> [EMAIL PROTECTED]> wrote:
> > Hello,
> > What are the main metrics/signals people use/look at to say "OK, I really
> > need to do a major compaction now", other than "hm, performance is not
> > good, let's try major compaction tonight"?
> > Thanks,
> > Otis
> > --
> > HBASE Performance Monitoring - http://sematext.com/spm/index.html
> > Search Analytics - http://sematext.com/search-analytics/index.html
> Kevin O'Dell
> Customer Operations Engineer, Cloudera
Kevin Odell 2012-12-12, 20:30
Ted Yu 2012-12-12, 20:36
Kevin Odell 2012-12-12, 20:50
Ted Yu 2012-12-15, 05:53