Re: [Condor-users] DAGman failed to detect a node's status, seems because it could not read its log.

["R. Kent Wenger" <wenger@xxxxxxxxxxx>]

On Mon, 21 Dec 2009, dawnsong wrote:

> It is fixed in the final. I set all the nodes share a same log file.
>
> As condor manual 7.3 said, DAGman support seperate logs by seperate nodes,
> but it seems that all nodes share one same log would make DAGman easy to run
> without complainent about "ERROR: failure to read job log".
>
> This confused me sine I have already upgraded to 7.4.

> From your earlier email, it sounds like your log file(s) are on NFS; is 
that correct?  If so, that's most likely the source of your problems.

When you upgraded the DAGMan version, did you re-run the DAG from scratch, 
or did you run it in recovery mode?  Do you still have the log file that 
generated the error?  If so, I'd like to take a look at it.  I'm guessing 
that if the file was on NFS, you got corrupted events because of two 
events being written at the same time.

Kent Wenger
Condor Team