[Swift-devel] Re: Please review and advise on: Bug 357 - Script hangs in staging on OSG

Mihael Hategan hategan at mcs.anl.gov
Thu Apr 14 20:53:10 CDT 2011


On Thu, 2011-04-14 at 20:11 -0500, Michael Wilde wrote:
> ALlan, what I meant was: do you have any evidence that this current run is hung (either in a similar manner to the one we looked at closely this morning, or in a different manner)?
> 
> In this mornings log, you could tell from plots of stagein and stageout events that many these events were not completing after something triggered an error.
> 
> Do you have similar plots or evidence of hangs regarding this run and its log?
> 
> I dont know from browsing the traces if one would *naturally* expect
> the transfer threads to all be waiting on input sockets most of the
> time, or if seeing all 4 threads waiting on sockets is indicative of
> data transfer being totally hung.

If nothing else happens in the log, then probably so. But the same could
happen for very large files (or very slow servers).





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