Bin YANG wrote:
Hi,
I am confused with some thing in HBase.
1. All data is stored in HDFS. Data is served to clients by
HRegionServers. Is it allowed that the tablet T is on machine A, and
served by a HRegionServers running on machine B?
Yes, tablet T may be hosted in HDFS on machine A
-Original Message-
From: Bin YANG [mailto:[EMAIL PROTECTED]
Sent: Thursday, November 01, 2007 3:06 AM
To: hadoop-user@lucene.apache.org
Subject: HBase question on HRegions server
Hi,
I am confused with some thing in HBase.
1. All data is stored in HDFS. Data is served to clients
Thank you very much Michael and Jim!
That means the master does not maintain the mapping from HRegion to
HRegionServer. And the mapping from HRegion to HRegionServer is in the
META and ROOT. Is it right?
So if a client want to read a tablet, it should first find the ROOT,
find corresponding
-Original Message-
From: Bin YANG [mailto:[EMAIL PROTECTED]
Sent: Thursday, November 01, 2007 6:59 PM
To: hadoop-user@lucene.apache.org
Subject: Re: HBase question on HRegions server
Thank you very much Michael and Jim!
That means the master does not maintain the mapping from
