Re: Gluster high RPC calls and reply

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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.

Gurdeep.



On 7 Jul 2014, at 7:19 pm, Pranith Kumar Karampuri <pkarampu@xxxxxxxxxx> 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@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. 


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