hbase-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From Ted Yu <yuzhih...@gmail.com>
Subject Re: HBASE 3904
Date Mon, 20 Jun 2011 22:28:37 GMT
J-D:
What's your assessment of why isTableAvailable() was inaccurate for a table
with 70k regions ?

Thanks

On Mon, Jun 20, 2011 at 3:01 PM, Jean-Daniel Cryans <jdcryans@apache.org>wrote:

> That's not how it works, whether the createTable call is sync or not
> the regions are first created in .META. before the call can return.
>
> And looking at that code, it seems it's highly inefficient. We should
> not change the enable flag for every region, we should batch put all
> the .META. rows and we should not open a new HLog per new region.
>
> J-D
>
> On Mon, Jun 20, 2011 at 2:55 PM, Ted Yu <yuzhihong@gmail.com> wrote:
> > From Vidhyashankar @ 20/May/11 05:53:
> > Hence there might be a case when all regions are indeed fully assigned in
> > META but it is just that the master is yet to populate META with the rest
> of
> > the regions.
> >
> > The above means scanning .META. alone wouldn't guarantee that all the
> > regions of the table are assigned.
> >
>

Mime
  • Unnamed multipart/alternative (inline, None, 0 bytes)
View raw message