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From "Ott, Charles H." <CHARLES.H....@saic.com>
Subject RE: Uneven distribute of Hosted Tablets?
Date Thu, 30 May 2013 20:40:22 GMT
Thanks for the feedback.  I will keep what you said in mind.

 

From: user-return-2636-CHARLES.H.OTT=saic.com@accumulo.apache.org
[mailto:user-return-2636-CHARLES.H.OTT=saic.com@accumulo.apache.org] On
Behalf Of David Medinets
Sent: Thursday, May 30, 2013 4:34 PM
To: accumulo-user
Subject: Re: Uneven distribute of Hosted Tablets?

 

Don't worry about splits until you have a few billion entries and a lot
more servers. What you're seeing now is just a bad signal to noise
ratio.

 

On Thu, May 30, 2013 at 11:22 AM, Ott, Charles H. <
CHARLES.H.OTT@saic.com> wrote:

First I want to say thanks to the you all.  The information provided by
this mailing list has been invaluable to me and I appreciate it.

 

My newest concern is the uneven allocation of hosted tablets across my
tablet servers:

 

(Image Pasted below here)

 

(Image Pasted above here)

 

I have been reading about pre-splitting tables in the Accumulo guide.
But I am not sure if that would be the 'fix' for this.  (Or even if this
needs fixing.)

 

I have 3 tables that could potentially grow to n number of records.
Currently of those tables (and there single tablet) reside on the
1620-accumulo server (Hosting 24 tablets).

 

Since there is already several entries on those tables, would splitting
them be appropriate?  Does splitting guarantee that the new tablets will
be allocated to Node1 instead of Node 3? Or perhaps could I "re-balance"
the cluster so that all of the tablet servers host an approximately
equal number of tablets?

 

These tablet servers were all brought up at separate times and I have
not performed any optimizations or custom operations on them.

 

 

Thanks,

Charles

 

 

 


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