Hi Burkhard,
I'm sure the user has permission to read and write. Besides, we're not using EC data pools.
Now the situation is that any openration to a specific file, the command will hang.
Operations to any other files won't hang.
Burkhard Linke <Burkhard.Linke@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx> 于2018年8月13日周一 下午9:42写道：
Hi,
On 08/13/2018 03:22 PM, Zhenshi Zhou wrote:
> Hi,
> Finally, I got a running server with files /sys/kernel/debug/ceph/xxx/
>
> [root@docker27 525c4413-7a08-40ca-9a98-0a6df009025b.client213522]# cat mdsc
> [root@docker27 525c4413-7a08-40ca-9a98-0a6df009025b.client213522]# cat monc
> have monmap 2 want 3+
> have osdmap 4545 want 4546
> have fsmap.user 0
> have mdsmap 335 want 336+
> fs_cluster_id -1
> [root@docker27 525c4413-7a08-40ca-9a98-0a6df009025b.client213522]# cat osdc
> REQUESTS 6 homeless 0
> 82580 osd10 1.7f9ddac7 [10,13]/10 [10,13]/10
> 10000053a04.00000000 0x400024 1 write
> 81019 osd11 1.184ed679 [11,7]/11 [11,7]/11
> 1000005397b.00000000 0x400024 1 write
> 81012 osd12 1.cd98ed57 [12,9]/12 [12,9]/12
> 10000053971.00000000 0x400024 1 write,startsync
> 82589 osd12 1.7cd5405a [12,8]/12 [12,8]/12
> 10000053a13.00000000 0x400024 1 write,startsync
> 80972 osd13 1.91886156 [13,4]/13 [13,4]/13
> 10000053939.00000000 0x400024 1 write
> 81035 osd13 1.ac5ccb56 [13,4]/13 [13,4]/13
> 10000053997.00000000 0x400024 1 write
>
> The cluster claims nothing, and shows HEALTH_OK still.
> What I did is just vim a file storing on cephfs, and then it hung there.
> And I got a process with 'D' stat.
> By the way, the whole mount directory is still in use and with no error.
So there are no pending mds requests, mon seems to be ok, too.
But the osd requests seems to be stuck. Are you sure the ceph user used
for the mount point is allowed to write to the cephfs data pools? Are
you using additional EC data pools?
Regards,
Burkhard
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