[Gluster-users] Reliable Geo-Replication

Shwetha Acharya sacharya at redhat.com
Mon Jun 22 11:49:19 UTC 2020


Hi Felix,

Have you deleted the session with reset-sync-time and recreated the session?

If yes, the crawling starts from beginning.
Which happens in this way:

It begins with hybrid crawl, as data is already in  master before re
creating the geo-rep session. If geo-rep session is craeted before creating
data on master, hybrid crawl does not occur. *Note*:  renames and deletes
will not be synced in hybrid crawl.

Then it gradually changes to history crawl and changelog crawl.

You can wait for sync to complete by setting a checkpoint, need not try #
setfattr -n glusterfs.geo-rep.trigger-sync -v "1" <file-path>
reset-sync-time will take considerable time to finish syncing, as I stated
earlier, it is time consuming one.

Modes does not affect # setfattr -n glusterfs.geo-rep.trigger-sync -v "1"
<file-path>

Regards,
Shwetha


On Mon, Jun 22, 2020 at 5:01 PM Felix Kölzow <felix.koelzow at gmx.de> wrote:

> Dear Shwetha,
>
>
> sorry, one more question, since I try to collect some more information
> which may helpful for other gluster-users.
>
> Does the suggested command
>
> # setfattr -n glusterfs.geo-rep.trigger-sync -v "1" <file-path>
>
> also work regardless of the current mode, i.e. history, hybrid or
> changelog crawl?
>
>
> Regards,
>
> Felix
> On 22/06/2020 13:11, Shwetha Acharya wrote:
>
> Hi Felix,
>
> File path is the path from mount point. Need not include any other options.
>
> Regards,|
> Shwetha
>
> On Mon, Jun 22, 2020 at 3:15 PM Felix Kölzow <felix.koelzow at gmx.de> wrote:
>
>> Dear Shwetha,
>>
>> > One more alternative would be to triggering sync on indivisual files,
>> > # setfattr -n glusterfs.geo-rep.trigger-sync -v "1" <file-path>
>>
>> So, how to do it exactly and what is <file-path>? Is it a gluster mount
>> point with certain mount options
>>
>> or is this the brick path? Furthermore, does it work for directories?
>>
>>
>> Regards,
>>
>> Felix
>>
>>
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