Le 07/12/2007 à 17:44:43+0100, Albert Shih a écrit
Hi all
>
I come back with my problem.
I've make many tests and the result is same.
> I've put into my gluster-client config
>
> volume node1
> type storage/posix
> option directory /_glusterfs
> end-volume
>
> volume node2
> type protocol/client
> option transport-type tcp/client # for TCP/IP transport
> option remote-host x.y.z.t
> option transport-timeout 30
> option remote-subvolume brick
> end-volume
>
> volume node3
> etc...
>
> volume unify
> type cluster/unify
> subvolumes node1....node18
> option scheduler nufa
> option nufa.local-volume-name node1
> option nufa.limits.min-free-disk 5%
> option namespace ns
> end-volume
>
> But....it's not working. Event the only left 1% gluster always write on
> local disk. He jump to another node when they left...nothing.
Well let me explain what kind a test I've make.
On one node I write enougth file to make the local file system full at 95 % (of 125Go)
After that I continue to write small file (1Go) in my glusterfs partition and event
when the local-disk is full at 98% when I start to write a new file It's continu to write on local
disk
Unfortunaly I'm not a developper I'm going to check in nufa.c source code
and I don't understand much (but I've see the nufa.limits-min-free-disk is
in % and not on GB or something like that). But in nufa.c in this block
I've add
if (op_ret == 0) {
percent = (trav_stats->free_disk * 100) / trav_stats->total_disk_size;
***********
gf_log ("nufa", GF_LOG_ERROR, "percent at %d", percent);
***********
if (nufa_struct->array[idx].free_disk > percent) {
if (nufa_struct->array[idx].eligible)
gf_log ("nufa", GF_LOG_CRITICAL,
"node \"%s\" is _almost_ full",
nufa_struct->array[idx].xl->name);
nufa_struct->array[idx].eligible = 0;
} else {
nufa_struct->array[idx].eligible = 1;
}
} else {
nufa_struct->array[idx].eligible = 0;
}
restart my glusterfs with log and I've seen the calculation of percent is
correct but what's I don't understand is when this calculation is make.
Because I've just one group of the log with my «special» add sometime after
I umount/remount my glusterfs partition. And never after that even when the
disk is full at 95%, 98%, 99%. Maybe it's normal (I'm really not a
developper).
Anyone have a solution ? or make nufa.limits working ?
Regards.
JAS
--
Albert SHIH
Observatoire de Paris Meudon
SIO batiment 15
Heure local/Local time:
Mar 11 déc 2007 15:48:00 CET
