It's possible that the operation that failed is an internal one made by
disperse itself or any other translator, so this error is not reported
to the application.
The read issued by the application will only fail if anything fails
while processing the read itself. If everything goes well, the read will
succeed and it should contain healthy data.
What configuration are you using ? (gluster volume info)
What are you doing exactly ? (workload)
Why is one brick down/damaged ? are you doing tests ? how are you doing
them ?
Best regards,
Xavi
On 20/05/16 16:54, Ankireddypalle Reddy wrote:
Hi,
Did anyone get a chance to check this. We are intermittently
receiving corrupted data in read operations because of this.
Thanks and Regards,
Ram
*From:*gluster-users-bounces@xxxxxxxxxxx
[mailto:gluster-users-bounces@xxxxxxxxxxx] *On Behalf Of *Ankireddypalle
Reddy
*Sent:* Thursday, May 19, 2016 3:59 PM
*To:* gluster-users@xxxxxxxxxxx
*Subject:* Possible error not being returned
Hi,
A disperse volume was configured on servers with limited
network bandwidth. Some of the read operations failed with error
[2016-05-16 18:38:36.035559] E [MSGID: 122034]
[ec-common.c:461:ec_child_select] 0-SDSStoragePool-disperse-2:
Insufficient available childs for this request (have 1, need 2)
[2016-05-16 18:38:36.035713] W [fuse-bridge.c:2213:fuse_readv_cbk]
0-glusterfs-fuse: 155121179: READ => -1 (Input/output error)
For some read operations just the following error was logged but the I/O
did not fail.
[2016-05-16 18:42:45.401570] E [MSGID: 122034]
[ec-common.c:461:ec_child_select] 0-SDSStoragePool-disperse-3:
Insufficient available childs for this request (have 1, need 2)
[2016-05-16 18:42:45.402054] W [MSGID: 122053]
[ec-common.c:116:ec_check_status] 0-SDSStoragePool-disperse-3: Operation
failed on some subvolumes (up=7, mask=6, remaining=0, good=6, bad=1)
We are receiving corrupted data in the read operation when the error is
logged but the read call did not return any error.
Thanks and Regards,
Ram
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