[Gluster-users] rpc_client_ping_timer_expired logic

[Khoi Mai]

Hi Gluster community,

Can someone who has insight on how rpc_client_ping_timer_expired operates, 
I would love to learn more about.   The reason behind it is that last week 
I had 2 fuse clients produce the same disconnect message, but reconnected 
immediately afterwards.  What I'd like to know is what may have caused it 
to behave this way and where else I can look to build and understanding of 
root cause.  The gluster node does show the same disconnect/reconnect.

Jan 28 14:25:27 omhq1cab GlusterFS[1640]: [2016-01-28 20:25:27.685703] C 
[client-handshake.c:127:rpc_client_ping_timer_expired] 
0-prodstatic-client-3: server 72.36.4.204:49155 has not responded in the 
last 10 seconds, disconnecting.


Jan 28 14:24:52 omhq1ca9 GlusterFS[1612]: [2016-01-28 20:24:52.589450] C 
[client-handshake.c:127:rpc_client_ping_timer_expired] 
0-prodstatic-client-3: server 72.36.4.204:49155 has not responded in the 
last 10 seconds, disconnecting.

My setup for the volume is as follows:  Brick4 was the one that appeared 
not responding to the clients.  I have an environment where multiple 
clients(30+)  mount this volume and none of them had any issues with 
Brick4 logged.

Volume Name: prodstatic
Type: Distributed-Replicate
Volume ID: 187c241d-0eeb-4405-80f2-c704ea44bc36
Status: Started
Number of Bricks: 2 x 4 = 8
Transport-type: tcp
Bricks:
Brick1: server1140:/export/content/static
Brick2: server1c5d:/export/content/static
Brick3: server11ad:/export/content/static
Brick4: server1781:/export/content/static
Brick5: server1c56:/export/content/static
Brick6: server1c58:/export/content/static
Brick7: server1c57:/export/content/static
Brick8: server1c59:/export/content/static
Options Reconfigured:
network.ping-timeout: 10
server.allow-insecure: on
features.quota: on

Thanks
Khoi

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