[Gluster-users] Gluster high RPC calls and reply

[Pranith Kumar Karampuri]

On 07/07/2014 06:58 PM, Gurdeep Singh (Guru) wrote:
> Hello Pranith,
>
> The version I am using is 3.5.1.1
>
> I did a wireshark capture and from looking at gluster information 
> found that RPC lookup is being made for random files.
In other response Niels pointed out how to check for it.
You can also attach the capture file so that we can take a look at it.

Pranith
>
> Gurdeep.
>
>
>
> On 7 Jul 2014, at 7:19 pm, Pranith Kumar Karampuri 
> <pkarampu at redhat.com <mailto:pkarampu at redhat.com>> wrote:
>
>>
>> On 07/06/2014 06:58 PM, Gurdeep Singh (Guru) wrote:
>>> Hello,
>>>
>>> I have setup gluster in replicate type and its working fine.
>>>
>>> I am seeing a constant chatting between the hosts for lookup call 
>>> and lookup reply. I am trying to understand as to why this traffic 
>>> is being initiated constantly. Please look at the attached image. 
>>> This traffic is using around 200KB/s of constant bandwidth and is 
>>> exhausting our allocated monthly bandwidth on our 2 VPS.
>> Self-heal-daemon tries to check if there is anything that needs 
>> healing every 10 minutes. Those RPCs are lookups. Could you check 
>> from the tcpdump if it is generating from self-heal-daemon? Which 
>> version of gluster are you using? I think there is a way to increase 
>> this 'time' in latest versions.
>>
>> Pranith
>>>
>>> The configuration I have for Gluster is:
>>>
>>> [guru at srv1 ~]$ sudo gluster volume info
>>> [sudo] password for guru:
>>>
>>> Volume Name: gv0
>>> Type: Replicate
>>> Volume ID: dc8dc3f2-f5bd-4047-9101-acad04695442
>>> Status: Started
>>> Number of Bricks: 1 x 2 = 2
>>> Transport-type: tcp
>>> Bricks:
>>> Brick1: srv1:/root/gluster-vol0
>>> Brick2: srv2:/root/gluster-vol0
>>> Options Reconfigured:
>>> cluster.lookup-unhashed: on
>>> performance.cache-refresh-timeout: 60
>>> performance.cache-size: 1GB
>>> storage.health-check-interval: 30
>>>
>>> <Mail Attachment.png>
>>>
>>> Please suggest how to fine tune the RPC calls/reply.
>>>
>>> Thanks,
>>> Gurdeep.
>>>
>>>
>>> _______________________________________________
>>> Gluster-users mailing list
>>> Gluster-users at gluster.org
>>> http://supercolony.gluster.org/mailman/listinfo/gluster-users
>>
>

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