On 09/11/2014 11:37 AM, Ilya Ivanov wrote:
I don't understand why there's such a complicated process to recover
when I can just look at both files, decide which one I need and delete
another one.
If the file needs to be deleted the whole file needs to be copied which
is fine for small files but for big files like VM images it takes less
time if the file already exists and it syncs only the parts of files
that are different from the good copy.
One more reason is if the parent directory from which the file is
deleted from is the source then self-heal will delete the file from
other directory rather than creating it. SO instead of deleting the file
may be it is a better practise to make a copy of the file somewhere and
delete it. We shall update the document as well with this new
information. Thanks for the feedback. In 3.7 it is going to be
simplified. We are giving a command to fix the split-brains where the
user gets to choose the file and it will do the rest.
Pranith
On Thu, Sep 11, 2014 at 7:56 AM, Pranith Kumar Karampuri
<pkara...@redhat.com <mailto:pkara...@redhat.com>> wrote:
On 09/11/2014 09:29 AM, Ilya Ivanov wrote:
Right... I deleted it and now all appears to be fine.
Still, could you please elaborate on "gfid split-brain"?
Could you go through
https://github.com/gluster/glusterfs/blob/master/doc/debugging/split-brain.md
Let us know if you would like something to be more clearer and we
can add that and improve the document.
Pranith
On Thu, Sep 11, 2014 at 5:32 AM, Pranith Kumar Karampuri
<pkara...@redhat.com <mailto:pkara...@redhat.com>> wrote:
On 09/11/2014 12:16 AM, Ilya Ivanov wrote:
Any insight?
Was the other file's gfid d3def9e1-c6d0-4b7d-a322-b5019305182e?
Could you check if this file exists in <brick>/.glusterfs/d3/de/
When a file is deleted this file also needs to be deleted if
there are no more hardlinks to the file
Pranith
On Tue, Sep 9, 2014 at 8:35 AM, Ilya Ivanov
<bearw...@gmail.com <mailto:bearw...@gmail.com>> wrote:
What's a gfid split-brain and how is it different from
"normal" split-brain?
I accessed the file with stat, but "heal info" still
shows "Number of entries: 1"
[root@gluster1 gluster]# getfattr -d -m. -e hex gv01/123
# getfattr -d -m. -e hex gv01/123
# file: gv01/123
trusted.afr.gv01-client-0=0x000000000000000000000000
trusted.afr.gv01-client-1=0x000000000000000000000000
trusted.gfid=0x35f86f4561134ba0bd1b94ef70179d4d
[root@gluster1 gluster]# getfattr -d -m. -e hex gv01
# file: gv01
trusted.afr.gv01-client-0=0x000000000000000000000000
trusted.afr.gv01-client-1=0x000000000000000000000000
trusted.gfid=0x00000000000000000000000000000001
trusted.glusterfs.dht=0x000000010000000000000000ffffffff
trusted.glusterfs.volume-id=0x31a2c4c486ca4344b838d2c2e6c716c1
On Tue, Sep 9, 2014 at 8:19 AM, Pranith Kumar Karampuri
<pkara...@redhat.com <mailto:pkara...@redhat.com>> wrote:
On 09/09/2014 11:35 AM, Ilya Ivanov wrote:
Ahh, thank you, now I get it. I deleted it on one
node and it replicated to another one. Now I get
the following output:
[root@gluster1 var]# gluster volume heal gv01 info
Brick gluster1:/home/gluster/gv01/
<gfid:d3def9e1-c6d0-4b7d-a322-b5019305182e>
Number of entries: 1
Brick gluster2:/home/gluster/gv01/
Number of entries: 0
Is it normal? Why the number of entries isn't reset
to 0?
If you access the file using ls/stat etc, it will be
fixed. But before that could you please post the
output of 'getfattr -d -m. -e hex
file/path/in/backend/brick' and 'getfattr -d -m. -e
hex parent/dir/to/file/path/in/backend/brick'
Pranith
And why wouldn't the file show up in split-brain
before, anyway?
Gfid split-brains are not shown in
heal-info-split-brain yet.
Pranith
On Tue, Sep 9, 2014 at 7:46 AM, Pranith Kumar
Karampuri <pkara...@redhat.com
<mailto:pkara...@redhat.com>> wrote:
On 09/09/2014 01:54 AM, Ilya Ivanov wrote:
Hello.
I've Gluster 3.5.2 on Centos 6. A primitive
replicated volume, as describe here
<https://www.digitalocean.com/community/tutorials/how-to-create-a-redundant-storage-pool-using-glusterfs-on-ubuntu-servers>.
I tried to simulate split-brain by temporarily
disconnecting the nodes and creating a file
with the same name and different contents.
That worked.
The question is, how do I fix it now? All the
tutorials suggest deleting the file from one
of the nodes. I can't do that, it reports
"Input/output error". The file won't even show
up in "gluster volume heal gv00 info
split-brain". That shows 0 entries.
The deletion needs to happen on one of the
bricks, not from the mount point.
Pranith
I can see the file in "gluster volume heal
gv00 info heal-failed", though.
--
Ilya.
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