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Re: [Gluster-devel] svn co / cp fail

From: Pooya Woodcock
Subject: Re: [Gluster-devel] svn co / cp fail
Date: Thu, 26 Apr 2007 11:24:01 -0700 
Ooops! Ok it works now!
-Pooya

On Apr 26, 2007, at 10:58 AM, Anand Avati wrote:


Pooya,
      please update the appropriate 'option auth.ip.<brick>.allow'
lines in the protocol/server translator to allow the new volume names
(locks*) from the preivous names (brick*)

thanks,
avati


On Thu, Apr 26, 2007 at 10:27:46AM -0700, Pooya Woodcock wrote:

Avati,
Thanks, I confirmed that the bug is fixed!

I loaded the posix-locks translater as follows on the server side.
Did I do this right? I couldn't get the volume to mount when I put
"subvolumes locks locks-afr" in the protocol/server translator (and
then also changing the client side to look for remote-subvolume locks
and remote-subvolume locks-afr). When I had the remote subvolumes set
to locks and locks-afr, I got this error:
Apr 26 10:05:13] [ERROR/tcp-client.c:123/do_handshake()] tcp/
client:SETVOLUME on remo
te server failed (Volume "locks-afr" is not attachable from host
10.175.175.134)

## current server.vol ###
volume brick
        type storage/posix
        option directory /GlusterFS
end-volume

volume locks
  type features/posix-locks
  subvolumes brick
end-volume

volume brick-afr
        type storage/posix
        option directory /GlusterFS-AFR
end-volume

volume locks-afr
  type features/posix-locks
  subvolumes brick-afr
end-volume

volume server
        type protocol/server
        option transport-type tcp/server
        option bind-address 10.175.175.137
        option listen-port 6996
        subvolumes brick brick-afr
        option auth.ip.brick.allow 10.175.175.*
        option auth.ip.brick-afr.allow 10.175.175.*
end-volume



On Apr 26, 2007, at 9:43 AM, Anand Avati wrote:


Pooya,
 the bug was in posix-locks. posis-locks is supposed to be loaded on
server side just above the storage/posix trnaslator. loading it on the client side makes it lock only for processes within the same machine. 

the bug has been fixed in posix locks, but nonetheless you need to
load posix-locks on server side for it to be put to use at all. please 
tla update to get the fix (or just loading posix-locks on serverside
alone will fix it too)

avati

On Thu, Apr 26, 2007 at 08:31:27AM -0700, Pooya Woodcock wrote:


On Apr 26, 2007, at 2:51 AM, Anand Avati wrote:

Pooya,
the svn was failing because of the same root cause as brent was
facing for mtime failures. i have committed some changes to
write-behind to use a more 'play safe' flushing policy. I am able to 
successfully svn co now.

I am still unable to reprodcue the cp issue. please give me your
spec files and the commands you executed before you got the bug.

regards,
avati



Hi Avati,
  After upgrading to patch-123, all I did was start copying files
around and then noticed that I can't overwrite any file. My shell
thinks that the file is a directory when it is not. I just did
another test:

address@hidden www]# touch hi
address@hidden www]# touch hi2
address@hidden www]# cp hi2 hi
cp: overwrite `hi'? yes
cp: cannot create regular file `hi': No such file or directory

address@hidden www]# mv hi2 hi
mv: overwrite `hi'? yes

address@hidden www]# cp hi hi2
address@hidden www]# ls -l hi*
-rw-r--r--  1 root root 0 Apr 26 08:22 hi
-rw-r--r--  1 root root 0 Apr 26 08:23 hi2

address@hidden www]# rm hi
rm: remove regular empty file `hi'? yes
address@hidden www]# rm hi2
rm: remove regular empty file `hi2'? yes
address@hidden www]#
So you see, it is just the cp/overwrite which fails. This happens on 
nodes 2-4 also.
***After reverting to patch 119, all the above commands work fine*** 

Here are the conf files for glusterfs/glusterfsd I am using....

There are 4 servers and 4 clients.
## SERVER.VOL (same on each except for bind-address) ##

volume brick
       type storage/posix
       option directory /GlusterFS
end-volume

volume brick-afr
       type storage/posix
       option directory /GlusterFS-AFR
end-volume

volume server
       type protocol/server
       option transport-type tcp/server
       option bind-address 10.175.175.134
       option listen-port 6996
       subvolumes brick brick-afr
       option auth.ip.brick.allow 10.175.175.*
       option auth.ip.brick-afr.allow 10.175.175.*
end-volume


### CLIENT.VOL ###
volume brick1
type protocol/client
option transport-type tcp/client
option remote-host 10.175.175.134
option remote-port 6996
option remote-subvolume brick
end-volume

volume brick1-afr
type protocol/client
option transport-type tcp/client
option remote-host 10.175.175.135
option remote-port 6996
option remote-subvolume brick-afr
end-volume

volume brick2
type protocol/client
option transport-type tcp/client
option remote-host 10.175.175.135
option remote-port 6996
option remote-subvolume brick
end-volume

volume brick2-afr
type protocol/client
option transport-type tcp/client
option remote-host 10.175.175.136
option remote-port 6996
option remote-subvolume brick-afr
end-volume

volume brick3
type protocol/client
option transport-type tcp/client
option remote-host 10.175.175.136
option remote-port 6996
option remote-subvolume brick
end-volume

volume brick3-afr
type protocol/client
option transport-type tcp/client
option remote-host 10.175.175.137
option remote-port 6996
option remote-subvolume brick-afr
end-volume

volume brick4
type protocol/client
option transport-type tcp/client
option remote-host 10.175.175.137
option remote-port 6996
option remote-subvolume brick
end-volume

volume brick4-afr
type protocol/client
option transport-type tcp/client
option remote-host 10.175.175.134
option remote-port 6996
option remote-subvolume brick-afr
end-volume

volume afr1
type cluster/afr
subvolumes brick1 brick1-afr
option replicate *:2
end-volume

volume afr2
type cluster/afr
subvolumes brick2 brick2-afr
option replicate *:2
end-volume

volume afr3
type cluster/afr
subvolumes brick3 brick3-afr
option replicate *:2
end-volume

volume afr4
type cluster/afr
subvolumes brick4 brick4-afr
option replicate *:2
end-volume

volume unify1
type cluster/unify
subvolumes afr1 afr2 afr3 afr4
 option readdir-force-success on
 option scheduler rr
 option rr.limits.min-free-disk 10GB
end-volume

volume locks
       type features/posix-locks
       subvolumes unify1
end-volume



--
ultimate_answer_t
deep_thought (void)
{
 sleep (years2secs (7500000));
 return 42;
}





--
ultimate_answer_t
deep_thought (void)
{
  sleep (years2secs (7500000));
  return 42;
}
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