[Gluster-users] FW: ATTN: nbalacha IRC - Gluster - BlackoutWNCT requested info for 0byte file issue

[Nithya Balachandran]

CCing Ravi (arbiter) , Poornima and Raghavendra (parallel readdir)

Hi Joshua,

I had a quick look at the files you sent across.  To summarize the issue,
you see empty linkto files on the mount point.

>From the logs I see  that parallel readdir is enabled for this volume:

performance.readdir-ahead: on
performance.parallel-readdir: on

There was a similar issue reported earlier [1] and fixed as part of [2].
Which version of gluster are you running? Poornima and Raghavendra, can you
take a look and see if it is the same issue?



An interesting observation - the value of the  trusted.glusterfs.dht.linkto
xattr is different on the one of the bricks of the replica set for some of
the files(Ravi, any idea why ?)

---------T 2 root root 0 May 18 16:49
/arbiterAA01/gvAA01/brick1/vaultAA01/support-couplers/CPL-SBS01
(CPL-SBS01)/D_VOL-b002-i1873-cd.md5

root at PB-WA-AA-00-A:/# getfattr -e hex -m . -d
/arbiterAA01/gvAA01/brick1/vaultAA01/support-couplers/CPL-SBS01\
\(CPL-SBS01\)/D_VOL-b002-i1873-cd.md5
getfattr: Removing leading '/' from absolute path names
# file: arbiterAA01/gvAA01/brick1/vaultAA01/support-couplers/CPL-SBS01
(CPL-SBS01)/D_VOL-b002-i1873-cd.md5
trusted.gfid=0xfc31c380697a4c70b6af1af35822e519
trusted.glusterfs.dht.linkto=0x6776414130312d726561646469722d61686561642d3100

This value is "gvAA01-readdir-ahead-1"



---------T 2 root root 0 May 18 16:49
/brick1/gvAA01/brick/vaultAA01/support-couplers/CPL-SBS01
(CPL-SBS01)/D_VOL-b002-i1873-cd.md5

root at PB-WA-AA-01-B:/# getfattr -e hex -m . -d
/brick1/gvAA01/brick/vaultAA01/support-couplers/CPL-SBS01\
\(CPL-SBS01\)/D_VOL-b002-i1873-cd.md5
getfattr: Removing leading '/' from absolute path names
# file: brick1/gvAA01/brick/vaultAA01/support-couplers/CPL-SBS01
(CPL-SBS01)/D_VOL-b002-i1873-cd.md5
trusted.gfid=0xfc31c380697a4c70b6af1af35822e519
trusted.glusterfs.dht.linkto=0x6776414130312d726561646469722d61686561642d3100

This value is "gvAA01-readdir-ahead-1"



---------T 2 root root 0 May 30 14:25
/brick1/gvAA01/brick/vaultAA01/support-couplers/CPL-SBS01
(CPL-SBS01)/D_VOL-b002-i1873-cd.md5

root at PB-WA-AA-02-B:/# getfattr -e hex -m . -d
/brick1/gvAA01/brick/vaultAA01/support-couplers/CPL-SBS01\
\(CPL-SBS01\)/D_VOL-b002-i1873-cd.md5
getfattr: Removing leading '/' from absolute path names
# file: brick1/gvAA01/brick/vaultAA01/support-couplers/CPL-SBS01
(CPL-SBS01)/D_VOL-b002-i1873-cd.md5
trusted.afr.dirty=0x000000000000000000000000
trusted.bit-rot.version=0x020000000000000058df0ab7000710ee
trusted.gfid=0xfc31c380697a4c70b6af1af35822e519
trusted.glusterfs.dht.linkto=0x6776414130312d7265706c69636174652d3100

This value is "gvAA01-replicate-1"


[1] http://lists.gluster.org/pipermail/gluster-users/2017-March/030254.html
[2] https://bugzilla.redhat.com/show_bug.cgi?id=1435942

On 30 May 2017 at 14:20, Joshua Coyle <joshua.coyle at probax.io> wrote:

>
>
>
>
> [image: Probax]
>
> *Joshua Coyle*
>
> *P*
>
> 1300 885 117
>
> *E*
>
> joshua.coyle at probax.io
>
> *W*
>
> probax.io <http://www.probax.io/>
>
> *A*
>
> QV1 Perth,
>
> Level 33/250 St Georges Tce,
>
> Perth WA 6000
>
> *smart safe local cloud*
>
>
>
>
>
> *From:* Joshua Coyle
> *Sent:* Tuesday, May 30, 2017 3:27 PM
> *To:* 'gluster-devel at gluster.org' <gluster-devel at gluster.org>
> *Subject:* ATTN: nbalacha IRC - Gluster - BlackoutWNCT requested info for
> 0byte file issue
>
>
>
> Hey nbalacha,
>
>
>
> Please find the requested information attached for the issue being
> discussed in IRC.
>
>
>
> If you need any further info, please let me know.
>
>
>
> Thanks,
>
>
>
> BlackoutWNCT
>
> [image: Probax]
>
> *Joshua Coyle*
>
> *P*
>
> 1300 885 117
>
> *E*
>
> joshua.coyle at probax.io
>
> *W*
>
> probax.io <http://www.probax.io/>
>
> *A*
>
> QV1 Perth,
>
> Level 33/250 St Georges Tce,
>
> Perth WA 6000
>
> *smart safe local cloud*
>
>
>
>
>
> _______________________________________________
> Gluster-users mailing list
> Gluster-users at gluster.org
> http://lists.gluster.org/mailman/listinfo/gluster-users
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.gluster.org/pipermail/gluster-users/attachments/20170531/9f630747/attachment-0001.html>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: image001.jpg
Type: image/jpeg
Size: 3799 bytes
Desc: not available
URL: <http://lists.gluster.org/pipermail/gluster-users/attachments/20170531/9f630747/attachment-0001.jpg>