Thank you for reporting this. I had done testing on my local setup and the issue was resolved even with quick-read enabled. Let me test it again.
Regards,
Poornima
On Mon, Apr 15, 2019 at 12:25 PM Hu Bert <revirii@xxxxxxxxxxxxxx> wrote:
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@xxxxxxxxxxxxxx>:
>
> 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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