[Gluster-users] Hot Tier

Hari Gowtham
Mon, 31 Jul 2017 08:51:57 -0000

For the tier daemon to migrate the files for read, few performance
translators have to be turned off.
By default the performance quick-read and io-cache are turned on. You
can turn them off so that
the files will be migrated for read.

On Mon, Jul 31, 2017 at 11:34 AM, Hari Gowtham <hgowtham at redhat.com>
wrote:
> Hi,
>
> If it was just reads then the tier daemon won't migrate the files to
hot tier.
> If you create a file or write to a file that file will be made
> available on the hot tier.
>
>
> On Mon, Jul 31, 2017 at 11:06 AM, Nithya Balachandran
> <nbalacha at redhat.com> wrote:
>> Milind and Hari,
>>
>> Can you please take a look at this?
>>
>> Thanks,
>> Nithya
>>
>> On 31 July 2017 at 05:12, Dmitri Chebotarov <4dimach at
gmail.com> wrote:
>>>
>>> Hi
>>>
>>> I'm looking for an advise on hot tier feature - how can I tell
if the hot
>>> tier is working?
>>>
>>> I've attached replicated-distributed hot tier to an EC volume.
>>> Yet, I don't think it's working, at least I don't see
any files directly
>>> on the bricks (only folder structure). 'Status' command has
all 0s and 'In
>>> progress' for all servers.
>>>
>>> ~]# gluster volume tier home status
>>> Node                 Promoted files       Demoted files
Status
>>> ---------            ---------            ---------
---------
>>> localhost            0                    0                    in
progress
>>> MMR11                0                    0                    in
progress
>>> MMR08                0                    0                    in
progress
>>> MMR03                0                    0                    in
progress
>>> MMR02                0                    0                    in
progress
>>> MMR07                0                    0                    in
progress
>>> MMR06                0                    0                    in
progress
>>> MMR09                0                    0                    in
progress
>>> MMR12                0                    0                    in
progress
>>> MMR10                0                    0                    in
progress
>>> MMR05                0                    0                    in
progress
>>> MMR04                0                    0                    in
progress
>>> Tiering Migration Functionality: home: success
>>>
>>>
>>> I have a folder with .yml files (Ansible) on the gluster volume,
which as
>>> I understand is 'cache friendly'.
>>> No matter how many times I read files, nothing is moved to the hot
tier
>>> bricks.
>>>
>>> Thank you.
>>>
>>> _______________________________________________
>>> Gluster-users mailing list
>>> Gluster-users at gluster.org
>>> http://lists.gluster.org/mailman/listinfo/gluster-users
>>
>>
>>
>> _______________________________________________
>> Gluster-users mailing list
>> Gluster-users at gluster.org
>> http://lists.gluster.org/mailman/listinfo/gluster-users
>
>
>
> --
> Regards,
> Hari Gowtham.



--
Regards,
Hari Gowtham.