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From Mark Thomas <>
Subject Re: backupManager - backup on all nodes and slowly
Date Mon, 03 Feb 2014 12:46:59 GMT
On 03/02/2014 11:59, Ja kub wrote:
> Ok, thx,
> 2 questions:
> 1) If I will have only one very large session (about 100Mb), will memory
> increase only on one backup node, and on 2 other nodes in cluster memory
> will not increase ?

You should see an increase on the primary and the backup node for that
session. The proxy sessions on the other two nodes should be minimal
since they just hold the session ID and the locations of the primary and
backup copies.

> 2) On 18080 node, on which all queries where asked memory increased not too
> much than 100Mb, and on each of other nodes memory also increased about 100
> Mb.
>   Is it not strange ? I would expect about 35-50 Mb of memory increase on
> each of 3 backup nodes. Now memory consumption is the same as with Delta
> Manager.

It depends a lot on what that memory is doing. You'd need to look very
carefully with a profiler to be sure of what was going on.

You can use the Manager app to see which sessions are on which nodes in
what state.


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