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Posted to user@hbase.apache.org by Felix Sprick <fs...@gmail.com> on 2011/03/11 11:31:27 UTC
Hbase HDFS replication factor
Hi,
I have a HBase cluster with 1 master and 3 slaves. I am wondering what
needs to be done in order to change the replication factor. I changed
dfs.replication in /usr/lib/hadoop/conf/hdfs-site.xml to a different
value. Do I have to change this on all 4 machines or is it enough on
the master? What needs to be restarted in order to apply the changes?
thanks,
Felix
Re: Hbase HDFS replication factor
Posted by lohit <lo...@yahoo.com>.
To add to this, you might have to increase replication factor of already created
files in HDFS.
I think new config does not trigger re-replication of already created files.
----- Original Message ----
From: Lars George <la...@gmail.com>
To: "user@hbase.apache.org" <us...@hbase.apache.org>
Sent: Fri, March 11, 2011 8:35:47 AM
Subject: Re: Hbase HDFS replication factor
Hi,
The files are created mainly by the region servers, so yes, this needs to be on
all servers to work as expected.
Lars
On Mar 11, 2011, at 11:31, Felix Sprick <fs...@gmail.com> wrote:
> Hi,
>
> I have a HBase cluster with 1 master and 3 slaves. I am wondering what
> needs to be done in order to change the replication factor. I changed
> dfs.replication in /usr/lib/hadoop/conf/hdfs-site.xml to a different
> value. Do I have to change this on all 4 machines or is it enough on
> the master? What needs to be restarted in order to apply the changes?
> thanks,
> Felix
Re: Hbase HDFS replication factor
Posted by Lars George <la...@gmail.com>.
Hi,
The files are created mainly by the region servers, so yes, this needs to be on all servers to work as expected.
Lars
On Mar 11, 2011, at 11:31, Felix Sprick <fs...@gmail.com> wrote:
> Hi,
>
> I have a HBase cluster with 1 master and 3 slaves. I am wondering what
> needs to be done in order to change the replication factor. I changed
> dfs.replication in /usr/lib/hadoop/conf/hdfs-site.xml to a different
> value. Do I have to change this on all 4 machines or is it enough on
> the master? What needs to be restarted in order to apply the changes?
> thanks,
> Felix