[Gluster-users] What is it with trusted.io-stats-dump?

[Jeevan Patnaik]

Hi,

Thanks. Now I understand :)

On Nov 13, 2017 1:06 PM, "Krutika Dhananjay" <kdhananj at redhat.com> wrote:

> trusted.io-stats-dump is a virtual (not physical) extended attribute.
> The code is written in a way that a request to set trusted.io-stats-dump
> gets bypassed at the io-stats translator layer on the stack and
> there it gets converted into the action of dumping the statistics into the
> provided output file path.
> See io_stats_setxattr() implementation in io-stats.c for more details.
>
> HTH,
> Krutika
>
> On Mon, Nov 13, 2017 at 12:14 PM, Jeevan Patnaik <g1patnaik at gmail.com>
> wrote:
>
>> Hi,
>>
>> I am trying to understand how the extended attribute
>> trusted.io-stats-dump works.
>>
>> setfattr -n trusted.io-stats-dump -v /tmp/gluster_perf_stats/io-stats-pre.txt
>> /mnt/gluster/gv0_glusterfs
>>
>> I can see that the io-stats-pre.txt is created. But how and what happened
>> in the background?
>>
>> And why I can't I see the attribute with getfattr again?
>>
>> getfattr -dm- /mnt/gluster/gv0_glusterfs
>> # file: mnt/gluster/gv0_glusterfs
>> trusted.glusterfs.dht.commithash="3480667945 <03480%20667%20945>"
>>
>> Regards,
>> Jeevan.
>>
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>> Gluster-users at gluster.org
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>>
>
>
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