[Gluster-users] VM hangs when one of the glusterfs server started

[Josh Boon]

Have you tried the security options mentioned in known issues over at https://github.com/gluster/glusterfs/blob/release-3.6/doc/release-notes/3.6.3.md for qemu? 

----- Original Message -----

From: "Jay" <15305714684 at 189.cn> 
To: gluster-users at gluster.org 
Sent: Thursday, April 30, 2015 2:55:37 AM 
Subject: [Gluster-users] VM hangs when one of the glusterfs server started 



Hello guys 



I’ve encountered a problem, i have a glusterfs cluster of 3 servers, 1 volume,which is a replicate volume: 



[root at sy-host-1 ~]# gluster v info 



Volume Name: img 

Type: Replicate 

Volume ID: 93e23097-1899-4396-9fca-cf592f4c7a25 

Status: Started 

Number of Bricks: 1 x 3 = 3 

Transport-type: tcp 

Bricks: 

Brick1: 192.168.60.13:/ytxt/glusterfs 

Brick2: 192.168.60.14:/ytxt/glusterfs 

Brick3: 192.168.60.15:/ytxt/glusterfs 



The volume is used as a shared filesystem for kvm, but when i was doing some maintenance work on one of the servers, say, sy-host-2, i stopped glusterd daemon, after the maintenance work done , i started glusterd daemon, but as soon as the process was up, some of the vm was hanging, can not ssh to the vm. I was thinking if there was something to do with glusterd daemon,so i tried to stop the daemon just started, bang~~, everything was back to normal 



As soon as sy-host-2 started the glusterd daemon, sy-host-1 showed up something in the log(/var/log/glusterfs/glusterd.log): 



[2015-04-28 06:08:35.342054] E [client-handshake.c:1496:client_query_portmap_cbk] 0-img-client-1: failed to get the port number for remote subvolume. Please run 'gluster volume status' on server to see if brick process is running. 

[2015-04-28 06:08:35.342223] I [client.c:2215:client_rpc_notify] 0-img-client-1: disconnected from img-client-1. Client process will keep trying to connect to glusterd until brick's port is available 



I ran the command “gluster volume status” on sy-host-2, nothing but normal 



Any help is great appreciated 



-- 

Jay 

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