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From stack <st...@duboce.net>
Subject Re: Can't list table that exists inside HBase
Date Wed, 17 Jun 2009 17:38:40 GMT
See also 'tools' in the hbase shell.  There is a tool to flush all in a
table or an individual region.

I also need to roll a 0.19.4 candidate.  It has a few issues that have us
flushing catalog tables way more frequently that we used to.

St.Ack

On Wed, Jun 17, 2009 at 10:04 AM, Lucas Nazário dos Santos <
nazario.lucas@gmail.com> wrote:

> Helped a lot! Thanks for the replies. I'll keep coding and move to newer
> versions of HBase and Hadoop as soon as they are out. I'll also have a look
> at the flush operation from HBaseAdmin.
>
> Lucas
>
>
>
> On Wed, Jun 17, 2009 at 1:58 PM, Erik Holstad <erikholstad@gmail.com>
> wrote:
>
> > Hi Lucas!
> > Not sure if you have had a look at the BigTable paper, link in the
> > beginning
> > of http://hadoop.apache.org/hbase/ might clear some of the confusion.
> > But basically what happens is to support fast writes we only write to
> > memory  and periodically flush this data to disk, so while data is still
> in
> > memory
> > it is not persisted, needs to be written to disk/HDFS for that to be
> true.
> > We have a second mechanism for dealing with not losing data while sitting
> > in
> > memory. This is called WriteAheadLog and we are still waiting for Hadoop
> to
> > support one of the features to make this happen, which hopefully will
> > not be too long.
> >
> > Hope this helped.
> >
> > Erik
> >
>

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