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Posted to dev@phoenix.apache.org by Andrew Purtell <ap...@apache.org> on 2015/07/01 23:54:03 UTC
SYSTEM.SEQUENCE is created with 256 regions by default now?
I built 4.5.0-HBase-0.98-SNAPSHOT from the head of branch 4.x-HBase-0.98
today and saw that when I started up sqlline Phoenix initialized
SYSTEM.SEQUENCE with 256 regions. Is that intended? I was really surprised
and that's a lot of regions for a single node all-localhost cluster.
--
Best regards,
- Andy
Problems worthy of attack prove their worth by hitting back. - Piet Hein
(via Tom White)
Re: SYSTEM.SEQUENCE is created with 256 regions by default now?
Posted by Andrew Purtell <ap...@apache.org>.
Thanks. As you can see I haven't been around much for a while.
On Wed, Jul 1, 2015 at 3:39 PM, James Taylor <ja...@apache.org> wrote:
> Yes, since 4.2.2. The number of regions is controlled by
> the phoenix.sequence.saltBuckets property (only the first time
> SYSTEM.SEQUENCE is created):
>
> Here are a couple of mailing list threads where this was discussed before
> (there are quite a few others too):
>
>
> http://search-hadoop.com/m/9UY0h2XEa5e1WTdx2/sequence&subj=Re+how+to+drop+SYSTEM+SEQUENCE+table+to+reduce+the+no+of+salt+buckets+for+this+table
>
> http://search-hadoop.com/m/9UY0h29HRFP1zi3Z31/sequence&subj=Re+Connection+taking+longer+time+after+upgrading+to+apache+phoenix+4+3+1
>
> On Wed, Jul 1, 2015 at 2:54 PM, Andrew Purtell <ap...@apache.org>
> wrote:
>
> > I built 4.5.0-HBase-0.98-SNAPSHOT from the head of branch 4.x-HBase-0.98
> > today and saw that when I started up sqlline Phoenix initialized
> > SYSTEM.SEQUENCE with 256 regions. Is that intended? I was really
> surprised
> > and that's a lot of regions for a single node all-localhost cluster.
> >
> > --
> > Best regards,
> >
> > - Andy
> >
> > Problems worthy of attack prove their worth by hitting back. - Piet Hein
> > (via Tom White)
> >
>
--
Best regards,
- Andy
Problems worthy of attack prove their worth by hitting back. - Piet Hein
(via Tom White)
Re: SYSTEM.SEQUENCE is created with 256 regions by default now?
Posted by James Taylor <ja...@apache.org>.
Yes, since 4.2.2. The number of regions is controlled by
the phoenix.sequence.saltBuckets property (only the first time
SYSTEM.SEQUENCE is created):
Here are a couple of mailing list threads where this was discussed before
(there are quite a few others too):
http://search-hadoop.com/m/9UY0h2XEa5e1WTdx2/sequence&subj=Re+how+to+drop+SYSTEM+SEQUENCE+table+to+reduce+the+no+of+salt+buckets+for+this+table
http://search-hadoop.com/m/9UY0h29HRFP1zi3Z31/sequence&subj=Re+Connection+taking+longer+time+after+upgrading+to+apache+phoenix+4+3+1
On Wed, Jul 1, 2015 at 2:54 PM, Andrew Purtell <ap...@apache.org> wrote:
> I built 4.5.0-HBase-0.98-SNAPSHOT from the head of branch 4.x-HBase-0.98
> today and saw that when I started up sqlline Phoenix initialized
> SYSTEM.SEQUENCE with 256 regions. Is that intended? I was really surprised
> and that's a lot of regions for a single node all-localhost cluster.
>
> --
> Best regards,
>
> - Andy
>
> Problems worthy of attack prove their worth by hitting back. - Piet Hein
> (via Tom White)
>