Yes we have files whose sizes sometimes exceeds brick size .
This case also hits when we have partially filled bricks and then we
want to create a single file using the space available in all the
bricks, even though that file size is lesser than a bricksize.
Example:
Say we have three bricks of 10 MB each.
Each brick is filled with one 5.1 MB file each, initially.
Now the left over space is 4.9 MB in each brick. So total space is 4.9
MB * 3 = 14.7 MB. We cannot now create a file of atleast 5 MB.
Thanks
Subrata
On 07/23/2014 10:38 AM, Joe Julian wrote:
To you have single files that exceed brick sizes which grow and shrink?
On July 22, 2014 10:02:16 PM PDT, Subrata Ghosh
<[email protected]> wrote:
Can you please help for this. It is really becoming critical for us.
Regards,
Subrata
On 07/22/2014 04:45 PM, Subrata Ghosh wrote:
Hi ,
We are using GlusterFS in our product for DFS. We have found an
issue in using "striping" while experimenting with Striped
Volumes in our DFS infrastructure. We thought of enable striping
to support "Max Files Size" when a file dynamically grows/shrink
over time inside a brick. We need to add more storage dynamically
to handle this situation and striped the file across bricks to
fit it properly in that striped volume .
*Question*: is Does Gluster supports "dynamic configuration of
Stripe Count" (increment / decrement stripe count) of Striping
currently ?
We tried with following two basic experiments :
1. Create a volume with two bricks with stripe count 2 with no
replica ( to simplify ).
2. Add one more brick in that volume and increase stripe count by
one ( the stripe count becomes 3 now) .
- Seems it works fine and files are being striped across
3 bricks as per specified chunk-size .
3. However faced issues while removing a brick from the volume
and decrement stripe count by one again ( so the stripe count
becomes 2 again)
=> Gluster is not allowing to reduce the stripe count in
this scenario.
Could you please help us by clarifying this.
Thanks for your help
Regards,
Subrata Ghosh
(Ericsson R&D)
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