: Friday, March 1, 2013 5:46 AM
To: user@cassandra.apache.org user@cassandra.apache.org
Subject: Re: -pr vs. no -pr
Sweeet, I %100 understand this now from these last few emails. It has
always been a bit confusing.
Thanks,
Dean
From: Sylvain Lebresne sylv...@datastax.commailto:sylv
On Fri, Mar 1, 2013 at 12:39 AM, Hiller, Dean dean.hil...@nrel.gov wrote:
Isn't it true if I have 6 nodes, I could run nodetool repair on just 2
nodes(RF=3) instead of using nodetool repair –pr???
What is the advantage of –pr then?
I think the main advantage of nodetool is that you don't
On Thu, Feb 28, 2013 at 11:39 PM, Hiller, Dean dean.hil...@nrel.gov wrote:
Isn't it true if I have 6 nodes, I could run nodetool repair on just 2
nodes(RF=3) instead of using nodetool repair –pr???
Yes, it is true.
And to precise further, in your case you have 2 options:
1) doing repair
@cassandra.apache.org
Date: Friday, March 1, 2013 4:36 AM
To: user@cassandra.apache.orgmailto:user@cassandra.apache.org
user@cassandra.apache.orgmailto:user@cassandra.apache.org
Subject: Re: -pr vs. no -pr
On Thu, Feb 28, 2013 at 11:39 PM, Hiller, Dean
dean.hil...@nrel.govmailto:dean.hil...@nrel.gov
Isn't it true if I have 6 nodes, I could run nodetool repair on just 2
nodes(RF=3) instead of using nodetool repair –pr???
What is the advantage of –pr then?
I mean a repair involves all three nodes and pushes and pulls data, right?
Thanks,
Dean
The way I've always thought about it is that -pr will make sure the information
that specific node originates is consistent with its replicas.
So, we know that a node is responsible for a specific token range, and the next
nodes in the ring will hold its replicas. The -pr will make sure that a
