[Gluster-users] Gluster high RPC calls and reply

Gurdeep Singh (Guru) guru at bazaari.com.au
Mon Jul 7 13:28:05 UTC 2014

Hello Pranith,

The version I am using is

I did a wireshark capture and from looking at gluster information found that RPC lookup is being made for random files.


On 7 Jul 2014, at 7:19 pm, Pranith Kumar Karampuri <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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