Open Stack

replication logs

On Thu, Nov 20, 2014 at 9:32 PM, Matsuda, Kenichiro <
matsuda_kenichi at jp.fujitsu.com> wrote:

> Hi,
>
> Thank you for the info.
>
> I was able to get replication info easily by swift-recon API.
> But, I wasn't able to judge whether no failure from recon info of
> object-replicator.
>
> Could you please advise me for a way of get object-replicator's failure
> info?
>
> [replication info from recon]
> * account
>
> ------------------------------------------------------------------------------
> # curl http://192.168.1.11:6002/recon/replication/account | python
> -mjson.tool
> {
>     "replication_last": 1416354262.7157061,
>     "replication_stats": {
>         "attempted": 20,
>         "diff": 0,
>         "diff_capped": 0,
>         "empty": 0,
>         "failure": 20,
>         "hashmatch": 0,
>         "no_change": 40,
>         "remote_merge": 0,
>         "remove": 0,
>         "rsync": 0,
>         "start": 1416354240.9761429,
>         "success": 40,
>         "ts_repl": 0
>     },
>     "replication_time": 21.739563226699829
> }
>
> ------------------------------------------------------------------------------
>
> * container
>
> ------------------------------------------------------------------------------
> # curl http://192.168.1.11:6002/recon/replication/container | python
> -mjson.tool
> {
>     "replication_last": 1416353436.9448521,
>     "replication_stats": {
>         "attempted": 13346,
>         "diff": 0,
>         "diff_capped": 0,
>         "empty": 0,
>         "failure": 870,
>         "hashmatch": 0,
>         "no_change": 1908,
>         "remote_merge": 0,
>         "remove": 0,
>         "rsync": 0,
>         "start": 1416349377.3627851,
>         "success": 1908,
>         "ts_repl": 0
>     },
>     "replication_time": 4059.5820670127869
> }
>
> ------------------------------------------------------------------------------
>
> * object
>
> ------------------------------------------------------------------------------
> # curl http://192.168.1.11:6002/recon/replication | python -mjson.tool
> {
>     "object_replication_last": 1416334368.60865,
>     "object_replication_time": 2316.5563162644703
> }
> # curl http://192.168.1.11:6002/recon/replication/object | python
> -mjson.tool
> {
>     "object_replication_last": 1416334368.60865,
>     "object_replication_time": 2316.5563162644703
> }
>
> ------------------------------------------------------------------------------
>
> Best Regards,
> Kenichiro Matsuda.
>
>
> From: Clay Gerrard [mailto:clay.gerrard at gmail.com]
> Sent: Friday, November 21, 2014 4:22 AM
> To: OpenStack Development Mailing List (not for usage questions)
> Subject: Re: [openstack-dev] [swift] a way of checking replicate
> completion on swift cluster
>
> You might check if the swift-recon tool has the data you're looking for.
> It can report the last completed replication pass time across nodes in the
> ring.
>
> On Thu, Nov 20, 2014 at 1:28 AM, Matsuda, Kenichiro <
> matsuda_kenichi at jp.fujitsu.com> wrote:
> Hi,
>
> I would like to know about a way of checking replicate completion on swift
> cluster.
> (e.g. after rebalanced Ring)
>
> I found the way of using swift-dispersion-report from Administrator's
> Guide.
> But, this way is not enough, because swift-dispersion-report can't checking
> replicate completion for other data that made by not
> swift-dispersion-populate.
>
> And also, I found the way of using replicator's logs from Q&A.
> But, I would like to more easy way, because check of below logs is very
> heavy.
>
>   (account/container/object)-replicator * All storage node on swift cluster
>
> Could you please advise me for it?
>
> Findings:
>   Administrator's Guide  Cluster Health
>
> http://docs.openstack.org/developer/swift/admin_guide.html#cluster-health
>   how to check replicator work complete
>
> https://ask.openstack.org/en/question/18654/how-to-check-replicator-work-complete/
>
> Best Regards,
> Kenichiro Matsuda.
>
>
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