[Bugs] [Bug 1250704] Random errors when reading multiple files in parallel on disperse volume

[bugzilla at redhat.com]

https://bugzilla.redhat.com/show_bug.cgi?id=1250704



--- Comment #24 from Backer <mdfakkeer at gmail.com> ---
Hi xavier,

We are not able to read any files from disperse-0 to disperse-35 subvolumes and
it hangs.
But we are able to read files from dipserse-36 to disperse-71 subvolumes.

About cluster setup

Distributed dispersed volume has been created across nodes. Each node node has
36 drives and disperse count is 8+2. So disperse-0 to disperse-35 has been
created between node1 and node10 and disperse-36 to disperse-71 has been
created between node11 to node20. Node1 to 10 hard-disks are almost full. So we
are trying to re-balance the data between disperse set 0-35 to disperse 36 to
71.

when we tried to read a file from a client, it put the following messages in
client log.

[2015-08-31 07:07:41.250555] I [MSGID: 109045]
[dht-common.c:1665:dht_lookup_everywhere_cbk] 0-glustertest-dht: attempting
deletion of stale linkfile
/Packages/Features/DCI/J/JAATS-IN-GOLMAAL_FTR_S_PUN-en_CAN-XX_51_2K_OC_RIM_OV/JAATS-IN-GOLMAAL_FTR_S_PUN-en_CAN-XX_51_2K_OC_20130518_RIM_OV/JAAT-IN-GOLMAAL_R5-6-7-8-9_CSC_J2K-reel-5-jp2k.mxf
on glustertest-disperse-34 (hashed subvol is glustertest-disperse-14)
[2015-08-31 07:07:41.251942] I [MSGID: 109069]
[dht-common.c:990:dht_lookup_unlink_cbk] 0-glustertest-dht: lookup_unlink
returned with op_ret -> 0 and op-errno -> 0 for
/Packages/Features/DCI/J/JAATS-IN-GOLMAAL_FTR_S_PUN-en_CAN-XX_51_2K_OC_RIM_OV/JAATS-IN-GOLMAAL_FTR_S_PUN-en_CAN-XX_51_2K_OC_20130518_RIM_OV/JAAT-IN-GOLMAAL_R5-6-7-8-9_CSC_J2K-reel-5-jp2k.mxf

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