On 05/06/15 20:28, Lionel Bouton wrote:
> Hi,
>
> On 05/06/15 20:07, Timofey Titovets wrote:
>> 2015-05-06 20:51 GMT+03:00 Lionel Bouton :
>>> Is there something that would explain why initially Btrfs creates the
>>> 4MB files with 128k extents (32 extents / file) ? Is it a bad thing for
>>> perfor
Hi,
On 05/07/15 12:30, Burkhard Linke wrote:
> [...]
> Part of the OSD boot up process is also the handling of existing
> snapshots and journal replay. I've also had several btrfs based OSDs
> that took up to 20-30 minutes to start, especially after a crash.
> During journal replay the OSD daemon
Hi,
On 05/07/2015 12:04 PM, Lionel Bouton wrote:
On 05/06/15 19:51, Lionel Bouton wrote:
*snipsnap*
We've seen progress on this front. Unfortunately for us we had 2 power
outages and they seem to have damaged the disk controller of the system
we are testing Btrfs on: we just had a system crash
On 05/06/15 19:51, Lionel Bouton wrote:
> During normal operation Btrfs OSD volumes continue to behave in the same
> way XFS ones do on the same system (sometimes faster/sometimes slower).
> What is really slow though it the OSD process startup. I've yet to make
> serious tests (umounting the file
Hi,
On 05/06/15 20:07, Timofey Titovets wrote:
> 2015-05-06 20:51 GMT+03:00 Lionel Bouton :
>> Is there something that would explain why initially Btrfs creates the
>> 4MB files with 128k extents (32 extents / file) ? Is it a bad thing for
>> performance ?
> This kind of behaviour is a reason why
Hi,
On 05/06/15 20:04, Mark Nelson wrote:
> [...]
> Out of curiosity, do you see excessive memory usage during
> defragmentation? Last time I spoke to josef it sounded like it wasn't
> particularly safe yet and could make the machine go OOM, especially if
> there are lots of snapshots.
>
We have
2015-05-06 20:51 GMT+03:00 Lionel Bouton :
> On 05/05/15 02:24, Lionel Bouton wrote:
>> On 05/04/15 01:34, Sage Weil wrote:
>>> On Mon, 4 May 2015, Lionel Bouton wrote:
Hi,
we began testing one Btrfs OSD volume last week and for this first test
we disabled autodefrag and began t
On 05/06/2015 12:51 PM, Lionel Bouton wrote:
On 05/05/15 02:24, Lionel Bouton wrote:
On 05/04/15 01:34, Sage Weil wrote:
On Mon, 4 May 2015, Lionel Bouton wrote:
Hi,
we began testing one Btrfs OSD volume last week and for this first test
we disabled autodefrag and began to launch manual btrfs
On 05/05/15 02:24, Lionel Bouton wrote:
> On 05/04/15 01:34, Sage Weil wrote:
>> On Mon, 4 May 2015, Lionel Bouton wrote:
>>> Hi,
>>>
>>> we began testing one Btrfs OSD volume last week and for this first test
>>> we disabled autodefrag and began to launch manual btrfs fi defrag.
>>> [...]
>> Cool.
On 05/05/15 06:30, Timofey Titovets wrote:
> Hi list,
> Excuse me, what I'm saying is off topic
>
> @Lionel, if you use btrfs, did you already try to use btrfs compression for
> OSD?
> If yes, сan you share the your experience?
Btrfs compresses by default using zlib. We force lzo compression inst
Hi list,
Excuse me, what I'm saying is off topic
@Lionel, if you use btrfs, did you already try to use btrfs compression for OSD?
If yes, сan you share the your experience?
2015-05-05 3:24 GMT+03:00 Lionel Bouton :
> On 05/04/15 01:34, Sage Weil wrote:
>> On Mon, 4 May 2015, Lionel Bouton wrote:
On 05/04/15 01:34, Sage Weil wrote:
> On Mon, 4 May 2015, Lionel Bouton wrote:
>> Hi,
>>
>> we began testing one Btrfs OSD volume last week and for this first test
>> we disabled autodefrag and began to launch manual btrfs fi defrag.
>> [...]
> Cool.. let us know how things look after it ages!
We
On 05/04/15 01:34, Sage Weil wrote:
> On Mon, 4 May 2015, Lionel Bouton wrote:
>> Hi, we began testing one Btrfs OSD volume last week and for this
>> first test we disabled autodefrag and began to launch manual btrfs fi
>> defrag. During the tests, I monitored the number of extents of the
>> journa
On Mon, 4 May 2015, Lionel Bouton wrote:
> Hi,
>
> we began testing one Btrfs OSD volume last week and for this first test
> we disabled autodefrag and began to launch manual btrfs fi defrag.
>
> During the tests, I monitored the number of extents of the journal
> (10GB) and it went through the r
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