Franco,
Could you do the following to get more information:
"gluster volume profile <volname> start"
Wait for some time, this will start gathering what operations are coming to all the bricks"
Now execute "gluster volume profile <volname> info" > /file/you/should/reply/to/this/mail/with
Then execute:
gluster volume profile <volname> stop
Lets see if this throws any light on the problem at hand
Pranith
----- Original Message -----
> From: "Franco Broi" <franco.broi@xxxxxxxxxx>
> To: gluster-users@xxxxxxxxxxx
> Sent: Sunday, June 1, 2014 9:02:48 AM
> Subject: glusterfsd process spinning
>
> Hi
>
> I've been suffering from continual problems with my gluster filesystem
> slowing down due to what I thought was congestion on a single brick
> being caused by a problem with the underlying filesystem running slow
> but I've just noticed that the glusterfsd process for that particular
> brick is running at 100%+, even when the filesystem is almost idle.
>
> I've done a couple of straces of the brick and another on the same
> server, does the high number of futex errors give any clues as to what
> might be wrong?
>
> % time seconds usecs/call calls errors syscall
> ------ ----------- ----------- --------- --------- ----------------
> 45.58 0.027554 0 191665 20772 futex
> 28.26 0.017084 0 137133 readv
> 26.04 0.015743 0 66259 epoll_wait
> 0.13 0.000077 3 23 writev
> 0.00 0.000000 0 1 epoll_ctl
> ------ ----------- ----------- --------- --------- ----------------
> 100.00 0.060458 395081 20772 total
>
> % time seconds usecs/call calls errors syscall
> ------ ----------- ----------- --------- --------- ----------------
> 99.25 0.334020 133 2516 epoll_wait
> 0.40 0.001347 0 4090 26 futex
> 0.35 0.001192 0 5064 readv
> 0.00 0.000000 0 20 writev
> ------ ----------- ----------- --------- --------- ----------------
> 100.00 0.336559 11690 26 total
>
>
>
> Cheers,
>
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> Gluster-users mailing list
> Gluster-users@xxxxxxxxxxx
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>
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