Re: what does this Note mean?

2016-10-13 Thread Jeff Jirsa 
Nodetool status / nodetool ring will show an estimated ownership. They estimate 
this by looking at the replication settings of one of the non-system keyspaces 
(presumably those that contain actual data).

 

If they all have the same replication settings (say, RF=3 in each DC using 
NetworkTopologyStrategy), then the ring/status ownership estimation can be 
reasonably certain it’s correct – whatever value it will calculate is true for 
all keyspaces.

If they differ, then it can print some ownership % from whatever keyspace it 
selects, but that % will be different than if you chose a different keyspace. 
In this case, pass the keyspace as the optional last argument to specify which 
keyspace matters to you.

 

-  Jeff

 

From: Kant Kodali 
Reply-To: "user@cassandra.apache.org" 
Date: Thursday, October 13, 2016 at 7:08 PM
To: "user@cassandra.apache.org" 
Subject: what does this Note mean?

 

 

Note: Non-system keyspaces don't have the same replication settings, effective 
ownership information is meaningless


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Re: what does this Note mean?

2016-10-13 Thread Sebastian Estevez 
It means for accurate load statistics add the keyspace name after nodetool
status.

nodetool status 




All the best,




On Thu, Oct 13, 2016 at 10:08 PM, Kant Kodali  wrote:

>
> Note: Non-system keyspaces don't have the same replication settings,
> effective ownership information is meaningless
>