[OpenAFS] bosserver cron and signal 13

[Daniel Blakeley]

Quoting Nathan Neulinger (nneul@umr.edu):
> I remember having this problem myself... I eventually switched backupsys
> to just use the system cron. 

Yes, I've done this.  
 
> I went to try this and see if I can reproduce the problem to track
> down/come up with a fix, but have now been unable to reproduce it with
> openafs cvs.
>
> Is it happened for you with ANY cron job? Can you come up with a way to
> reproduce symptom with current openafs? If we can come up with a way to
> reproduce symptom, I should be able to fix problem, even though transarc
> didn't pass along the fix.

We are running version 1.2.2.  I can only reproduce the problem with
the vos backupsys ...  I tried several other cron instances that sent
messages to standard out, standard error, and standard out and error
combined but could not get it to fail.
 
> I did see this delta note in transarc release notes:
> 
> Defect 12625
> 
>     This fix resolves a condition that caused the 'vos backupsys'
> command to fail when run by the bosserver a
> s a cron job. On Linux, when the bosserver
>     runs a process that tries to write to stdout/stderr, the process
> receives a SIGPIPE and fails. Although t
> his error appeared only on Linux, code changes
>     were made on all platforms to prevent processes that are started by
> the bosserver from writing to stdout/
> stderr. 
> 
> 
> But that equivalent change has not been made in openafs, and I can't
> reproduce problem.
> 
> -- Nathan
> 
> Daniel Blakeley wrote:
> > 
> > Hi,
> > 
> > We just switched from Transarc AFS to OpenAFS and found that bos cron
> > functionality no longer works.  Any command run using an instance of
> > type cron will exit with a signal 13.  This is bad because we have
> > been using bos cron to do a vos backupsys everyday.
> > 
> > We had this problem a few months ago with the Transarc version and
> > they did fix something with the bosserver but Transarc did not say
> > what they changed.
> > 
> > Any help would be appreciated.
> > 
> > Thanks,
> > - Daniel
> > 
> > --
> > Daniel Blakeley (N2YEN)     Cornell Center for Materials Research
> > daniel@ccmr.cornell.edu     302 Thurston Hall
> > _______________________________________________
> > OpenAFS-info mailing list
> > OpenAFS-info@openafs.org
> > https://lists.openafs.org/mailman/listinfo/openafs-info
> 
> -- 
> 
> 
> ------------------------------------------------------------
> Nathan Neulinger                       EMail:  nneul@umr.edu
> University of Missouri - Rolla         Phone: (573) 341-4841
> Computing Services                       Fax: (573) 341-4216
- Daniel

--
Daniel Blakeley (N2YEN)     Cornell Center for Materials Research
daniel@ccmr.cornell.edu     302 Thurston Hall