[Gluster-users] Interpreting gluster volume top read/write output

Diego Zuccato diego.zuccato at unibo.it
Tue Feb 22 08:52:32 UTC 2022


Hi Hubert.

Didn't notice the 'top' command, so I cannot answer your doubts.

But I tried and noticed that read reports some entries like
2880            <gfid:dd539c92-ea64-4a96-b953-3a2d673496db>
2761            <gfid:eac8592f-63d0-4bb2-bdd8-92606d9c06a3>
Hope that's not symptom of a problem...

Il 22/02/2022 09:41, Hu Bert ha scritto:
> Hello @ll,
> 
> we're just doing some "research" on our own replica 3 volume
> (hostnames gserver1-3, gluster 9.4), and there are a few questions
> regarding the output of 'gluster volume top $volname read/write'.
> 
> 1)
> gluster volume top workdata write
> Brick: gserver2:/gluster/md7/workdata
> Count           filename
> =======================
> 203             /images/504/013/50401355/de.mp4
> 195             /images/396/910/39691058/de.mp4
> 167             /themes/oad-high-scardus-trail/media/220202Hstimageslider1.mp4
> 
> does this mean that these files have been written 203/195/... times?
> lifetime writes?
> 
> 2)
> gluster volume top workdata read
> Brick: gserver1:/gluster/md3/workdata
> Count           filename
> =======================
> 1794            /images/441/297/44129755/de.mp4
> 275             /images/275/806/27580686/default.jpg
> 258             /images/269/844/26984442/default.jpg
> 256             /images/269/845/26984597/default.jpg
> 
> gserver1 was rebooted yesterday; does this mean these files have been
> read 1794/275/... times? lifetime reads or since reboot?
> 
> We're just a bit ... curious if these are real read/write stats,
> lifetime, since reboot.
> 
> 
> thx,
> Hubert
> ________
> 
> 
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-- 
Diego Zuccato
DIFA - Dip. di Fisica e Astronomia
Servizi Informatici
Alma Mater Studiorum - Università di Bologna
V.le Berti-Pichat 6/2 - 40127 Bologna - Italy
tel.: +39 051 20 95786


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