[Lustre-discuss] slow recovery when MDS failed over

[Brian J. Murrell]

On Thu, 2008-08-07 at 12:06 -0400, Brock Palen wrote:
> In doing some testing with our new hardware I did the following:
> 
> I rebooted the active MDS server, it failed over to the second one as  
> expected.  While this was happening a client was reset.
> 
> When the MDS came up on the new server by heartbeat it went into  
> recovery as expected.  The MDS now has been in recovery for 1.5  
> hours.  I don't think this is normal.
> 
> What would cause this?  I know by having a client go down (the reset  
> above) while the MDS is down but before recovery will cause recovery  
> to time out but 1.5 hours is unacceptable time to wait for the file  
> system to come back.
> 
> This is a stock 1.6.5.1 install.

Hrm.  Can you provide the syslog from the backup MDS from the time it
was mounted until present?

b.

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