[Gluster-users] Upgrade 5.5 -> 5.6: network traffic bug fixed?

Hu Bert revirii at googlemail.com
Mon Apr 15 06:54:12 UTC 2019

fyi: after setting performance.quick-read to off network traffic
dropped to normal levels, client load/iowait back to normal as well.

client: https://abload.de/img/network-client-afterihjqi.png
server: https://abload.de/img/network-server-afterwdkrl.png

Am Mo., 15. Apr. 2019 um 08:33 Uhr schrieb Hu Bert <revirii at googlemail.com>:
> Good Morning,
> today i updated my replica 3 setup (debian stretch) from version 5.5
> to 5.6, as i thought the network traffic bug (#1673058) was fixed and
> i could re-activate 'performance.quick-read' again. See release notes:
> https://review.gluster.org/#/c/glusterfs/+/22538/
> http://git.gluster.org/cgit/glusterfs.git/commit/?id=34a2347780c2429284f57232f3aabb78547a9795
> Upgrade went fine, and then i was watching iowait and network traffic.
> It seems that the network traffic went up after upgrade and
> reactivation of performance.quick-read. Here are some graphs:
> network client1: https://abload.de/img/network-clientfwj1m.png
> network client2: https://abload.de/img/network-client2trkow.png
> network server: https://abload.de/img/network-serverv3jjr.png
> gluster volume info: https://pastebin.com/ZMuJYXRZ
> Just wondering if the network traffic bug really got fixed or if this
> is a new problem. I'll wait a couple of minutes and then deactivate
> performance.quick-read again, just to see if network traffic goes down
> to normal levels.
> Best regards,
> Hubert

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