<p dir="ltr">Hi Amar,</p>
<p dir="ltr">I would like to test Cluster v6 , but as I'm quite new to oVirt - I'm not sure if oVirt <-> Gluster will communicate properly</p>
<p dir="ltr">Did anyone test rollback from v6 to v5.5 ? If rollback is possible - I would be happy to give it a try.</p>
<p dir="ltr">Best Regards,<br>
Strahil Nikolov</p>
<div class="quote">On Apr 3, 2019 11:35, Amar Tumballi Suryanarayan <atumball@redhat.com> wrote:<br type='attribution'><blockquote class="quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr"><div dir="ltr">Strahil,<div><br /></div><div>With some basic testing, we are noticing the similar behavior too.</div><div><br /></div><div>One of the issue we identified was increased n/w usage in 5.x series (being addressed by <a href="https://review.gluster.org/#/c/glusterfs/+/22404/">https://review.gluster.org/#/c/glusterfs/+/22404/</a>), and there are few other features which write extended attributes which caused some delay.</div><div><br /></div><div>We are in the process of publishing some numbers with release-3.12.x, release-5 and release-6 comparison soon. With some numbers we are already seeing release-6 currently is giving really good performance in many configurations, specially for 1x3 replicate volume type.</div><div><br /></div><div>While we continue to identify and fix issues in 5.x series, one of the request is to validate release-6.x (6.0 or 6.1 which would happen on April 10th), so you can see the difference in your workload.</div><div><br /></div><div>Regards,</div><div>Amar</div><div><br /></div><div><br /></div></div></div><br /><div class="elided-text"><div dir="ltr">On Wed, Apr 3, 2019 at 5:57 AM Strahil Nikolov <<a href="mailto:hunter86_bg@yahoo.com">hunter86_bg@yahoo.com</a>> wrote:<br /></div><blockquote style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb( 204 , 204 , 204 );padding-left:1ex"><div><div style="font-family:'courier new' , 'courier' , 'monaco' , monospace , sans-serif;font-size:16px"><div>Hi Community,</div><div><br /></div><div>I have the feeling that with gluster v5.5 I have poorer performance than it used to be on 3.12.15. Did you observe something like that?</div><div><br /></div><div>I have a 3 node Hyperconverged Cluster (ovirt + glusterfs with replica 3 arbiter1 volumes) with NFS Ganesha and since I have upgraded to v5 - the issues came up.</div><div>First it was 5.3 notorious experience and now with 5.5 - my sanlock is having problems and higher latency than it used to be. I have switched from NFS-Ganesha to pure FUSE , but the latency problems do not go away.</div><div><br /></div><div>Of course , this is partially due to the consumer hardware, but as the hardware has not changed I was hoping that the performance will remain as is.</div><div><br /></div><div>So, do you expect 5.5 to perform less than 3.12 ?</div><div><br /></div><div>Some info:</div><div><div>Volume Name: engine</div><div>Type: Replicate</div><div>Volume ID: 30ca1cc2-f2f7-4749-9e2e-cee9d7099ded</div><div>Status: Started</div><div>Snapshot Count: 0</div><div>Number of Bricks: 1 x (2 + 1) = 3</div><div>Transport-type: tcp</div><div>Bricks:</div><div>Brick1: ovirt1:/gluster_bricks/engine/engine</div><div>Brick2: ovirt2:/gluster_bricks/engine/engine</div><div>Brick3: ovirt3:/gluster_bricks/engine/engine (arbiter)</div><div>Options Reconfigured:</div><div>performance.client-io-threads: off</div><div>nfs.disable: on</div><div>transport.address-family: inet</div><div>performance.quick-read: off</div><div>performance.read-ahead: off</div><div><a href="http://performance.io">performance.io</a>-cache: off</div><div>performance.low-prio-threads: 32</div><div>network.remote-dio: off</div><div>cluster.eager-lock: enable</div><div>cluster.quorum-type: auto</div><div>cluster.server-quorum-type: server</div><div>cluster.data-self-heal-algorithm: full</div><div>cluster.locking-scheme: granular</div><div>cluster.shd-max-threads: 8</div><div>cluster.shd-wait-qlength: 10000</div><div>features.shard: on</div><div>user.cifs: off</div><div>storage.owner-uid: 36</div><div>storage.owner-gid: 36</div><div>network.ping-timeout: 30</div><div>performance.strict-o-direct: on</div><div>cluster.granular-entry-heal: enable</div><div>cluster.enable-shared-storage: enable</div><br /></div><div>Network: 1 gbit/s</div><div><br /></div><div>Filesystem:XFS</div><div><br /></div><div>Best Regards,</div><div>Strahil Nikolov</div><div><br /></div></div></div>_______________________________________________<br />
Gluster-users mailing list<br />
<a href="mailto:Gluster-users@gluster.org">Gluster-users@gluster.org</a><br />
<a href="https://lists.gluster.org/mailman/listinfo/gluster-users">https://lists.gluster.org/mailman/listinfo/gluster-users</a></blockquote></div><br clear="all" /><div><br /></div>-- <br /><div dir="ltr"><div dir="ltr"><div><div dir="ltr"><div>Amar Tumballi (amarts)<br /></div></div></div></div></div>
</blockquote></div>