[Gluster-users] GlusterFS cluster peer stuck in state: Sent and Received peer request (Connected)

[Atin Mukherjee]

Tommy,

It seems like that there were frequent disconnect events which may have
caused the peer handshaking to remain incomplete and leading to an
inconsistency in the cluster state.

Further follow up questions:

1. Restarting glusterd instances doesn't solve the problem?

2. If answer to 1 is yes can we try to set state=3 in all the
/var/lib/glusterd/peers/<UUID> files and then restart glusterd to see
whether the problem persists?

If the above still doesn't solve the problem output of 'cat
/var/lib/glusterd/peers/*' from all the nodes should help us in figuring
out the correct workaround.

~Atin

On 03/22/2016 02:51 PM, Atin Mukherjee wrote:
> Gaurav is looking into it and he will get back with his analysis.
> 
> ~Atin
> 
> On 03/22/2016 02:42 PM, tommy.yardley at baesystems.com wrote:
>> Hi,
>>
>> Is anyone able to help with this issue?
>>
>> Thanks,
>> Tommy
>>
>> -----Original Message-----
>> From: gluster-users-bounces at gluster.org [mailto:gluster-users-bounces at gluster.org] On Behalf Of tommy.yardley at baesystems.com
>> Sent: 17 March 2016 08:49
>> To: gluster-users at gluster.org
>> Subject: Re: [Gluster-users] GlusterFS cluster peer stuck in state: Sent and Received peer request (Connected)
>>
>> Hi,
>>
>> Sorry I had sent them directly to Atin
>>
>> I've trimmed down the larger log files a bit and attached all of them to this email.
>>
>> Many thanks,
>> Tommy
>>
>> -----Original Message-----
>> From: Gaurav Garg [mailto:ggarg at redhat.com]
>> Sent: 17 March 2016 07:07
>> To: Yardley, Tommy (UK Guildford)
>> Cc: gluster-users at gluster.org
>> Subject: Re: [Gluster-users] GlusterFS cluster peer stuck in state: Sent and Received peer request (Connected)
>>
>>>>> I’ve sent the logs directly as they push this message over the size limit.
>>
>> Where have you send logs. i could not able to find. could you send glusterd logs so that we can start analyzing this issue.
>>
>> Thanks,
>>
>> Regards,
>> Gaurav
>>
>> ----- Original Message -----
>> From: "Atin Mukherjee" <amukherj at redhat.com>
>> To: "tommy yardley" <tommy.yardley at baesystems.com>, gluster-users at gluster.org
>> Sent: Wednesday, March 16, 2016 5:49:05 PM
>> Subject: Re: [Gluster-users] GlusterFS cluster peer stuck in state: Sent and Received peer request (Connected)
>>
>> I couldn't look into this today, sorry about that. I can only look into this case on Monday. Anyone else to take this up?
>>
>> ~Atin
>>
>> On 03/15/2016 09:57 PM, tommy.yardley at baesystems.com wrote:
>>> Hi Atin,
>>>
>>>
>>>
>>> All nodes are running 3.5.8 – the probe sequence is:
>>> 172.31.30.64
>>>
>>> 172.31.27.27 (node having issue)
>>>
>>> 172.31.26.134 (node the peer probe is ran on)
>>>
>>> 172.31.19.46
>>>
>>>
>>>
>>> I’ve sent the logs directly as they push this message over the size limit.
>>>
>>>
>>>
>>> look forward to your reply,
>>>
>>>
>>>
>>> Tommy
>>>
>>>
>>>
>>>
>>>
>>> *From:*Atin Mukherjee [mailto:atin.mukherjee83 at gmail.com]
>>> *Sent:* 15 March 2016 15:58
>>> *To:* Yardley, Tommy (UK Guildford)
>>> *Cc:* gluster-users at gluster.org
>>> *Subject:* Re: [Gluster-users] GlusterFS cluster peer stuck in state:
>>> Sent and Received peer request (Connected)
>>>
>>>
>>>
>>> This indicates the peer handshaking didn't go through properly and
>>> your cluster is messed up. Are you running 3.5.8 version in all the nodes?
>>> Could you get me the glusterd log from all the nodes and mention the
>>> peer probe sequence? I'd be able to look at it tomorrow only and get back.
>>>
>>> -Atin
>>> Sent from one plus one
>>>
>>> On 15-Mar-2016 9:16 pm, "tommy.yardley at baesystems.com
>>> <mailto:tommy.yardley at baesystems.com>" <tommy.yardley at baesystems.com
>>> <mailto:tommy.yardley at baesystems.com>> wrote:
>>>
>>> Hi All,
>>>
>>>
>>>
>>> I’m running GlusterFS on a cluster hosted in AWS. I have a script
>>> which provisions my instances and thus will set up GlusterFS (specifically:
>>> glusterfs 3.5.8).
>>>
>>> My issue is that this only works ~50% of the time and the other 50% of
>>> the time one of the peers will be ‘stuck’ in the following state:
>>>
>>> /root at ip-xx-xx-xx-1:/home/ubuntu# gluster peer status/
>>>
>>> /Number of Peers: 3/
>>>
>>> / /
>>>
>>> /Hostname: xx.xx.xx.2/
>>>
>>> /Uuid: 3b4c1fb9-b325-4204-98fd-2eb739fa867f/
>>>
>>> /State: Peer in Cluster (Connected)/
>>>
>>> / /
>>>
>>> /Hostname: xx.xx.xx.3/
>>>
>>> /Uuid: acfc1794-9080-4eb0-8f69-3abe78bbee16/
>>>
>>> /State: Sent and Received peer request (Connected)/
>>>
>>> / /
>>>
>>> /Hostname: xx.xx.xx.4/
>>>
>>> /Uuid: af33463d-1b32-4ffb-a4f0-46ce16151e2f/
>>>
>>> /State: Peer in Cluster (Connected)/
>>>
>>>
>>>
>>> Running gluster peer status on the instance that is affected yields:
>>>
>>>
>>>
>>> /root at ip-xx-xx-xx-3:/var/log/glusterfs# gluster peer status Number of
>>> Peers: 1/
>>>
>>> / /
>>>
>>> /Hostname: xx.xx.xx.1/
>>>
>>> /Uuid: c4f17e9a-893b-48f0-a014-1a05cca09d01/
>>>
>>> /State: Peer is connected and Accepted (Connected)/
>>>
>>> / /
>>>
>>> Of which the status (Connected) in this case, will fluctuate between
>>> ‘Connected’ and ‘Disconnected’.
>>>
>>>
>>>
>>> I have been unable to locate the cause of this issue. Has this been
>>> encountered before, and if so is there a general fix? I haven’t been
>>> able to find anything as of yet.
>>>
>>>
>>>
>>> Many thanks,
>>>
>>>
>>>
>>> *Tommy*
>>>
>>>
>>>
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