You need to disable RBD caching.
Tyler Bishop
Chief Technical Officer
513-299-7108 x10
[email protected]
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From: "gjprabu" <[email protected]>
To: "Frédéric Nass" <[email protected]>
Cc: "<[email protected]>" <[email protected]>, "Siva
Sokkumuthu" <[email protected]>, "Kamal Kannan Subramani(kamalakannan)"
<[email protected]>
Sent: Tuesday, October 13, 2015 9:11:30 AM
Subject: Re: [ceph-users] ceph same rbd on multiple client
Hi ,
We have CEPH RBD with OCFS2 mounted servers. we are facing i/o errors
simultaneously while move the folder using one nodes in the same disk other
nodes data replicating with below said error (Copying is not having any
problem). Workaround if we remount the partition this issue get resolved but
after sometime problem again reoccurred. please help on this issue.
Note : We have total 5 Nodes, here two nodes working fine other nodes are
showing like below input/output error on moved data's.
ls -althr
ls: cannot access LITE_3_0_M4_1_TEST: Input/output error
ls: cannot access LITE_3_0_M4_1_OLD: Input/output error
total 0
d????????? ? ? ? ? ? LITE_3_0_M4_1_TEST
d????????? ? ? ? ? ? LITE_3_0_M4_1_OLD
Regards
Prabu
---- On Fri, 22 May 2015 17:33:04 +0530 Frédéric Nass
<[email protected]> wrote ----
Hi,
Waiting for CephFS, you can use clustered filesystem like OCFS2 or GFS2 on top
of RBD mappings so that each host can access the same device and clustered
filesystem.
Regards,
Frédéric.
Le 21/05/2015 16:10, gjprabu a écrit :
--
Frédéric Nass
Sous direction des Infrastructures,
Direction du Numérique,
Université de Lorraine.
Tél : 03.83.68.53.83
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BQ_BEGIN
Hi All,
We are using rbd and map the same rbd image to the rbd device on two different
client but i can't see the data until i umount and mount -a partition. Kindly
share the solution for this issue.
Example
create rbd image named foo
map foo to /dev/rbd0 on server A, mount /dev/rbd0 to /mnt
map foo to /dev/rbd0 on server B, mount /dev/rbd0 to /mnt
Regards
Prabu
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