[Gluster-users] [Gluster performance tuning]how to determine the value of performcance.cache-size

[Juan José Pavlik Salles]

Hi Jifeng, as far as I know and from the tests I've run,
performance.cache-size is located on the client side (even though docs said
it could also be on the server side). Therefore be careful not to use more
memory than you have on your gluster clients.



2014-11-10 8:03 GMT-03:00 Jifeng Li <jifeng.li at ericsson.com>:

>  Hi  ,
>
>
>
> How do I  determine  the value of  performance.cache-size option
>  suitable for my glusterFS environment ? If I have large memory, can I set
> this value more larger ?
>
>
>
> Now I have 6 nodes which have 4 bricks.
>
>
>
> Volume info is shown below:
>
> Volume Name: gv0
>
> Type: Distributed-Replicate
>
> Volume ID: 8968985c-9272-4b03-8078-cf3ed91f9fc2
>
> Status: Started
>
> Number of Bricks: 12 x 2 = 24
>
> Transport-type: tcp
>
> Bricks:
>
> Brick1: adf-db1:/export/disk1/brick
>
> Brick2: adf-db2:/export/disk1/brick
>
> Brick3: adf-db1:/export/disk2/brick
>
> Brick4: adf-db2:/export/disk2/brick
>
> Brick5: adf-db1:/export/disk3/brick
>
> Brick6: adf-db2:/export/disk3/brick
>
> Brick7: adf-db1:/export/disk4/brick
>
> Brick8: adf-db2:/export/disk4/brick
>
> Brick9: adf-rr1:/export/disk1/brick
>
> Brick10: adf-rr2:/export/disk1/brick
>
> Brick11: adf-rr1:/export/disk2/brick
>
> Brick12: adf-rr2:/export/disk2/brick
>
> Brick13: adf-rr1:/export/disk3/brick
>
> Brick14: adf-rr2:/export/disk3/brick
>
> Brick15: adf-rr1:/export/disk4/brick
>
> Brick16: adf-rr2:/export/disk4/brick
>
> Brick17: adf-fr1:/export/disk1/brick
>
> Brick18: adf-fr2:/export/disk1/brick
>
> Brick19: adf-fr1:/export/disk2/brick
>
> Brick20: adf-fr2:/export/disk2/brick
>
> Brick21: adf-fr1:/export/disk3/brick
>
> Brick22: adf-fr2:/export/disk3/brick
>
> Brick23: adf-fr1:/export/disk4/brick
>
> Brick24: adf-fr2:/export/disk4/brick
>
> Options Reconfigured:
>
> network.ping-timeout: 20
>
> performance.cache-size: 1024MB
>
>
>
>
>
>
>
>
>
> BRs,
>
> Jifeng.Li
>
>
>
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>



-- 
Pavlik Salles Juan José
Blog - http://viviendolared.blogspot.com
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