[Errno 5] Input/output error: '/abc/def/ghi.gz'

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I am running:  glusterfs 3.5.9 built on Mar 28 2016 07:10:17

 

Other volume info:

 

Type: Distributed-Replicate

Number of Bricks: 8 x 3 = 24

Transport-type: tcp

Options Reconfigured:

performance.cache-refresh-timeout: 30

performance.cache-size: 768MB

cluster.quorum-type: auto

cluster.server-quorum-type: server

cluster.server-quorum-ratio: 51

 

When I try to manipulate a file (def/ghi.gz) on the mounted glusterfs folder (abc) I get an Errno 5 input/output error.  Most of the files work, but there are lots that have this same problem.

 

I visited each brick in my volume to see what the extended file attributes are for this file.

 

On my_volume-replicate-0 there is an empty file with the filename.  When I run “ls -al” it looks like this:

---------T    2 root       root            0 Mar  1 14:56 ghi.gz

 

On the first two bricks (bricks 0 and 1) of my_volume-replicate-0 when I run “getfattr -d -m. -e hex ghi.gz” I get the following results:

# file: ghi.gz

trusted.afr.my_volume-client-0=0x000000000000000000000000

trusted.afr.my_volume-client-1=0x000000000000000000000000

trusted.afr.my_volume-client-2=0x000000020000000200000000

trusted.gfid=0xabb0369b05844390add6ea72ce7e107a

trusted.glusterfs.dht.linkto=0x686f7374696e672d7265706c69636174652d3400

 

The link to looks like the following when I use text encoding instead of hex encoding:

trusted.glusterfs.dht.linkto="my_volume-replicate-4"

 

The third brick (brick 2) of my_volume-replicate-0 has these extended attributes:

# file: ghi.gz

trusted.gfid=0xc5c99fe21c3f4582b48e6f69ff76e33b

trusted.glusterfs.dht.linkto=0x686f7374696e672d7265706c69636174652d3400

 

So the third brick has a DIFFERENT trusted.gfid.

 

The first two bricks have trusted.afr.my_volume-client-2=0x000000020000000200000000.  Does that mean that the first two bricks think that the third brick (brick 2) has differences?

 

All three bricks are linking to my_volume-replicate-4.

 

All three bricks (bricks 12, 13, and 14) of my_volume-replicate-4 all have the actual file with these extended attributes:

# file: ghi.gz

trusted.afr.my_volume-client-12=0x000000000000000000000000

trusted.afr.my_volume-client-13=0x000000000000000000000000

trusted.afr.my_volume-client-14=0x000000000000000000000000

trusted.gfid=0xabb0369b05844390add6ea72ce7e107a

 

So, my_volume-replicate-4’s trusted.gfid matches bricks 0 and 1 of my_volume-replicate-0.  And they all have 0x000000000000000000000000 for all three trusted.afr.my_volume-client-## attribute.  I assume this means that the file is the same on all three bricks of my_volume-replicate-4.

 

No other bricks in the system have the ghi.gz file on them.

 

When I go to .glusterfs/indices/xattrop of bricks 0 and 1 there is a file there named abb0369b-0584-4390-add6-ea72ce7e107a.  This means that this file id is in need of healing, correct?  There is NOT a file named abb0369b-0584-4390-add6-ea72ce7e107a on brick 2.

 

When I run “gluster volume heal my_volume info heal-failed” it lists <gfid:abb0369b-0584-4390-add6-ea72ce7e107a> four times.  I have tried to do a full heal and a rebalance of the system, but it does not fix this problem.

 

How do I fix this problem?  Is there an easy way that I can fix all of the files with the problem in bulk?

 

Thank you very much for any insights or help you may have!!

 

Dave

 

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