[Gluster-users] Node failure timeouts and mount issues on boot

[Alun James]

Hi folks, 


I have a test gluster vol setup between 2 physical servers. Centos 6 / Gluster ver 3.4.2-1.el6 



Volume Name: storevol0 
Type: Replicate 
Status: Started 
Number of Bricks: 1 x 2 = 2 
Transport-type: tcp 
Bricks: 
Brick1: store01.gluster:/mnt/brick0 
Brick2: store02.gluster:/mnt/brick0 


Each node (store01 and store02) also mounts the gluster vol locally in fstab: 


store01.gluster:/storevol0 /home glusterfs defaults,_netdev 0 0 


and 


store02.gluster:/storevol0 /home glusterfs defaults,_netdev 0 0 


When one node reboots I notice 2 results: 


- The /home mount on the remaining node is unavailable for 30-60 secs before becoming available. 
- The rebooted server does not mount /home on boot, but a mount request after boot up works fine. 


I know I can tune the timeout setting and in my particular use case it wont matter so much, however how would this work if VMs where stored on this volume, surely the storage going missing for any number of seconds would cause a real problem with running virtual machines? 


How can I get the mount to work on reboot, _netdev seems not to be helping? 


Regards 

ALUN JAMES 
Senior Systems Engineer 
Tibus 

T: +44 (0)28 9033 1122 
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