[Gluster-users] Trouble to add brick

Burnash, James jburnash at knight.com
Mon May 23 18:08:53 UTC 2011


What is the output of:

# ls /etc/glusterd/peers
39bd607b-b355-4e0d-80ae-ef507e0dbabe  4583d8b7-f724-4017-b549-9aa9e27dd50f  a70858c6-cac3-43fa-b743-4d2226f8a433

Above output is mine.

If you cat each of these files, there should be one for each peer OTHER than the host that your are logged into), and hostnames each  files, like this:
# cat /etc/glusterd/peers/*
uuid=39bd607b-b355-4e0d-80ae-ef507e0dbabe
state=3
hostname1=jc1letgfs15-pfs1
uuid=4583d8b7-f724-4017-b549-9aa9e27dd50f
state=3
hostname1=jc1letgfs18-pfs1
uuid=a70858c6-cac3-43fa-b743-4d2226f8a433
state=3
hostname1=jc1letgfs14-pfs1

Here is a listing of all the peer files on all four nodes of my GlusterFS servers - I created this configuration in the same way you did - two servers, then add two servers:

jc1letgfs14
/etc/glusterd/peers/39bd607b-b355-4e0d-80ae-ef507e0dbabe
uuid=39bd607b-b355-4e0d-80ae-ef507e0dbabe
state=3
hostname1=jc1letgfs15-pfs1
/etc/glusterd/peers/4583d8b7-f724-4017-b549-9aa9e27dd50f
uuid=4583d8b7-f724-4017-b549-9aa9e27dd50f
state=3
hostname1=jc1letgfs18-pfs1
/etc/glusterd/peers/94f28f8c-8958-435b-80e4-3bd6d4fc5156
uuid=94f28f8c-8958-435b-80e4-3bd6d4fc5156
state=3
hostname1=10.20.72.191

jc1letgfs15
/etc/glusterd/peers/4583d8b7-f724-4017-b549-9aa9e27dd50f
uuid=4583d8b7-f724-4017-b549-9aa9e27dd50f
state=3
hostname1=jc1letgfs18-pfs1
/etc/glusterd/peers/94f28f8c-8958-435b-80e4-3bd6d4fc5156
uuid=94f28f8c-8958-435b-80e4-3bd6d4fc5156
state=3
hostname1=10.20.72.191
/etc/glusterd/peers/a70858c6-cac3-43fa-b743-4d2226f8a433
uuid=a70858c6-cac3-43fa-b743-4d2226f8a433
state=3
hostname1=jc1letgfs14-pfs1

jc1letgfs17
/etc/glusterd/peers/39bd607b-b355-4e0d-80ae-ef507e0dbabe
uuid=39bd607b-b355-4e0d-80ae-ef507e0dbabe
state=3
hostname1=jc1letgfs15-pfs1
/etc/glusterd/peers/4583d8b7-f724-4017-b549-9aa9e27dd50f
uuid=4583d8b7-f724-4017-b549-9aa9e27dd50f
state=3
hostname1=jc1letgfs18-pfs1
/etc/glusterd/peers/a70858c6-cac3-43fa-b743-4d2226f8a433
uuid=a70858c6-cac3-43fa-b743-4d2226f8a433
state=3
hostname1=jc1letgfs14-pfs1

jc1letgfs18
/etc/glusterd/peers/39bd607b-b355-4e0d-80ae-ef507e0dbabe
uuid=39bd607b-b355-4e0d-80ae-ef507e0dbabe
state=3
hostname1=jc1letgfs15-pfs1
/etc/glusterd/peers/94f28f8c-8958-435b-80e4-3bd6d4fc5156
uuid=94f28f8c-8958-435b-80e4-3bd6d4fc5156
state=3
hostname1=10.20.72.191
/etc/glusterd/peers/a70858c6-cac3-43fa-b743-4d2226f8a433
uuid=a70858c6-cac3-43fa-b743-4d2226f8a433
state=3
hostname1=jc1letgfs14-pfs1

I hope this is of some help.

James Burnash
Unix Engineer


-----Original Message-----
From: gluster-users-bounces at gluster.org [mailto:gluster-users-bounces at gluster.org] On Behalf Of Karim Latouche
Sent: Monday, May 23, 2011 1:02 PM
To: Mohit Anchlia
Cc: gluster-users at gluster.org
Subject: Re: [Gluster-users] Trouble to add brick

hi

Here is the output of gluster peer status  command of the four nodes

mysqldccbackup mysqldccbackupmirror are the two first nodes

I got issues when I tried to add gfsbrick1 and two to the already working cluster



> [root at gfsbrick1 ~]# gluster peer status
> Number of Peers: 1
>
> Hostname: 10.0.4.225
> Uuid: 00000000-0000-0000-0000-000000000000
> State: Establishing Connection (Connected)


> [root at gfsbrick2 ~]# gluster peer status
> Number of Peers: 2
>
> Hostname: 10.0.4.225
> Uuid: 2f4a1869-8c7e-49ea-a7b1-d9b2d364e5d6
> State: Peer in Cluster (Connected)
>
> Hostname: mysqldccbackupmirror
> Uuid: 0961e0d2-e2e8-497d-9c51-4b96c061f939
> State: Peer Rejected (Connected)

> [root at mysqldccbackup ~]# gluster peer status
> Number of Peers: 3
>
> Hostname: mysqldccbackupmirror
> Uuid: 0961e0d2-e2e8-497d-9c51-4b96c061f939
> State: Peer in Cluster (Connected)
>
> Hostname: gfsbrick2
> Uuid: 14f07412-b2e5-4b34-8980-d180a64b720f
> State: Peer in Cluster (Connected)
>
> Hostname: gfsbrick1
> Uuid: 00000000-0000-0000-0000-000000000000
> State: Establishing Connection (Connected)



> root at mysqldccbackupmirror ~]# gluster peer status
> Number of Peers: 1
>
> Hostname: 10.0.4.225
> Uuid: 2f4a1869-8c7e-49ea-a7b1-d9b2d364e5d6
> State: Peer in Cluster (Connected)
> [root at mysqldccbackupmirror ~]# gluster peer status
> Number of Peers: 1
>
> Hostname: 10.0.4.225
> Uuid: 2f4a1869-8c7e-49ea-a7b1-d9b2d364e5d6
> State: Peer in Cluster (Connected)

Thx a lot

KL









> Please send the complete output of gluster peer status from both the nodes.
>
> On Mon, May 23, 2011 at 9:44 AM, Karim Latouche
> <klatouche at digitalchocolate.com>  wrote:
>> hi
>>
>> Thx for your answer.
>>
>> I should have mention that I already set up a proper hosts file to avoid DNS
>> resolution issue but I still have same issue.
>>
>> The last brick is allways the one having issues to be added . I tried adding
>> gfsbrick2 first then gfsbrick1 and the result is the same
>>
>> I get
>>
>>> Hostname: gfsbrick2
>>> Uuid: 14f07412-b2e5-4b34-8980-d180a64b720f
>>> State: Peer in Cluster (Connected)
>>>
>>> Hostname: gfsbrick1
>>> Uuid: 00000000-0000-0000-0000-000000000000
>>> State: Establishing Connection (Connected)
>>
>> instead of
>>
>>
>>> Hostname: gfsbrick2
>>> Uuid: 00000000-0000-0000-0000-000000000000
>>> State: Establishing Connection (Connected)
>>
>> It 's really strange.
>>
>>
>> Thx
>>
>> KL
>>
>>
>>
>>
>>> Karim,
>>>      gfsbrick1 is not able to contact gfsbrick2 yet. Generally happens if
>>> the DNS resolutions dont happen as expected. You can map them manually in
>>> /etc/hosts for both the machines?.
>>>
>>> something like:
>>> on gfsbrick1
>>> <ip-of-brick2>    gfsbrick2
>>> on gfsbrick2
>>> <ip-of-brick1>    gfsbrick1
>>>
>>> Pranith.
>>>
>>> ----- Original Message -----
>>> From: "Karim Latouche"<klatouche at digitalchocolate.com>
>>> To: gluster-users at gluster.org
>>> Sent: Monday, May 23, 2011 7:56:22 PM
>>> Subject: [Gluster-users] Trouble to add brick
>>>
>>> Hi
>>>
>>> I got a strange problems
>>>
>>> I run a two bricks replicated volume and I tried to add 2 more bricks
>>>
>>> The first one went ok
>>>
>>>> gluster peer probe gfsbrick1
>>>> Probe successful
>>> It seems I can't add the second one
>>>
>>> I get a
>>>
>>>> Hostname: gfsbrick2
>>>> Uuid: 00000000-0000-0000-0000-000000000000
>>>> State: Establishing Connection (Connected)
>>> Did anyone encounter this issue ?
>>>
>>> Thx
>>>
>>> KL
>>>
>>>
>>> _______________________________________________
>>> Gluster-users mailing list
>>> Gluster-users at gluster.org
>>> http://gluster.org/cgi-bin/mailman/listinfo/gluster-users
>> _______________________________________________
>> Gluster-users mailing list
>> Gluster-users at gluster.org
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