[Gluster-users] The strange behavior whose common denominator is gluster

Pablo Silva psilvao at gmail.com
Tue Jun 9 12:30:31 UTC 2015

Hi Ted!

    Thanks for your reply, for the implementation of Service N2 (As2
Mendelson B45 + gluster 3.3.1-15.el6.x86_64 (1 brick)
we have implemented  one brick

As you can see, Mendelson has a Brick, and use it for to process teh
Purchase Ordes feed in SOA21 by MULE process

[root at mendelson ~]# gluster volume info

Volume Name: m2mas2
Type: Distribute
Volume ID: 328d1e48-bb0a-4b41-92ac-699f78d2dca7
Status: Started
Number of Bricks: 1
Transport-type: tcp
Brick1: mendelson.XXXXX.b2b:/opt/mendelson/messages
Options Reconfigured:
auth.allow: 10.200.20.*,10.200.22.*
storage.owner-uid: 500
storage.owner-gid: 500

[root at mendelson ~]# cat /etc/fstab

# /etc/fstab
# Created by anaconda on Wed Oct 23 11:42:22 2013
# Accessible filesystems, by reference, are maintained under '/dev/disk'
# See man pages fstab(5), findfs(8), mount(8) and/or blkid(8) for more info
/dev/mapper/VolGroup-lv_root /                       ext4
defaults,acl        1 1
UUID=df46586a-2f06-4ada-b2e6-523f7ec3967b /boot                   ext4
defaults        1 2
/dev/mapper/VolGroup-lv_swap swap                    swap
defaults        0 0
tmpfs                   /dev/shm                tmpfs   defaults        0 0
devpts                  /dev/pts                devpts  gid=5,mode=620  0 0
sysfs                   /sys                    sysfs   defaults        0 0
proc                    /proc                   proc    defaults        0 0

In this machine run MULE process for to feed with Purchase Orders to

[root at soa21ifh ~]# mount
/dev/mapper/VolGroup00-LogVol00 on / type ext3 (rw,acl)
proc on /proc type proc (rw)
sysfs on /sys type sysfs (rw)
devpts on /dev/pts type devpts (rw,gid=5,mode=620)
/dev/xvda1 on /boot type ext3 (rw)
tmpfs on /dev/shm type tmpfs (rw)
none on /proc/sys/fs/binfmt_misc type binfmt_misc (rw)
sunrpc on /var/lib/nfs/rpc_pipefs type rpc_pipefs (rw)
glusterfs#mendelson:/m2mas2 on /opt/m2m.as2 type fuse

maybe you.'re right and we are wrong with the way of architecture....

Thanks in Advance


On Mon, Jun 8, 2015 at 6:06 PM, Ted Miller <tmiller at sonsetsolutions.org>

>  Are you sure you have mounted the gluster volume, and are writing to the
> gluster volume, and NOT to the brick?  What you describe can happen when
> you write to the brick instead of the gluster volume.  You can see here:
> http://www.gluster.org/community/documentation/index.php/QuickStart in
> steps 6 and 7.  If you do not understand the difference, include the output
> of the 'mount' command from one of your servers.
> Ted Miller
> Elkhart, IN, USA
> On 6/5/2015 8:46 AM, Pablo Silva wrote:
>  Dear Colleagues:
>    We are using gluster in 3.3.1-15.el6.x86_64 and GlusterFS-3.6.2-1.el5
> versions, we have two types of service:
> 1) Apache httpd-2.2.3-91.el5.centos + GlusterFS-3.6.2-1.el5 (two bricks)
> 2) AS2 Mendelson B45 + gluster 3.3.1-15.el6.x86_64 (two bricks)
>  It is different services, a common problem, which I will explain
>  Service N1 (Apache httpd-2.2.3-91.el5.centos + GlusterFS-3.6.2-1.el5 (two
> bricks))
> -----------------------------------------------------------------------------------------------------------------------
> We have a high-availability architecture, in which there are two Apache
> servers see a directory that is hosted on a gluster long ago we had a
> problem where an Apache server could list the files and submit them for
> download, while the other Apache server that is watching the same
> directory with the same files gluster indicated that there were no files for
> download.
> Feeding gluster files to that directory, MULE performed asynchronously. In
> summary, an Apache server could access files and another did not give aware
> of their existence, as the directory and the same files.
>  Service N2 (As2 Mendelson B45 + gluster 3.3.1-15.el6.x86_64 (two bricks)
> )
> --------------------------------------------------------------------------------------------------------------
>  We have only one Mendelson AS2 Server B45 running with gluster (two
> bricks),
> The operations of mendelson is quite simple, is to observe the presence of files
> in a directory every 5 seconds and sent to the partner, the directory is
> hosted in gluster, the issue that every certain amount of time not
> Mendelson AS2 takes cognizance the existence of files in the directory,
> even if you enter the directory notes of its existence
> In both cases, different services being the only common denominator is
> gluster, someone else is experiencing this problem?
> Have we not set the service gluster well and we are repeating the same
> mistake ?, or is it a bug?
>  Thanks in advance
>  Pablo
> _______________________________________________
> Gluster-users mailing listGluster-users at gluster.orghttp://www.gluster.org/mailman/listinfo/gluster-users
> --
> *Ted Miller*, Design Engineer
> *SonSet Solutions*
> (formerly HCJB Global Technology Center)
> my desk +1 574.970.4272
> receptionist +1 574.972.4252
> http://sonsetsolutions.org
> *Technology for abundant life!*
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