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Hi Adrian, Actually, we keep previous releases so that we can look back at core files. However, since you do mention this is Alice, we know that the release you are using is a custom build (i.e. the base code has been modified). So, yes, we wouldn't be able to make much sense of a core file but only because of that issue. A pstack would certainly give us a broad view of the issue; along with the log file of the day. Andy On Sat, 13 Jul 2013, Adrian Sevcenco wrote: > On 07/12/2013 10:44 PM, Andrew Hanushevsky wrote: >> Hi Adrian, > Hi! > >> Not at all. XRootD is fully multi-threaded and can use as many cores as >> you have. When this situation occurs it's normally due to an error in a >> plug-in where all the requests pileup on a single core. When you see >> this happen, a simple pstack of the process along with the day's log >> file will help us determine what the issue is. Did this resolve itself? > No, at random times (depending of the number of requests) the > dataservers gets locked and i have to restart the xrootd services .. > Given that ALICE use at best 3.2.6 i imagine that would be pointless to > give you gdb traces from the core dumps (when the services coredumps).. > At the next locked xrootd i will post a pstacks and a link to logs... > > Thanks! > Adrian > > > >> >> Andy >> >> On Fri, 12 Jul 2013, Adrian Sevcenco wrote: >> >>> Hi! Is xrootd single threaded? When there is load on the data servers is >>> see only 1 core at 100% ... >>> Can i conclude that for data servers is better to have less cores with >>> higher frequencies? >>> >>> Thank you! >>> Adrian >>> >>> >>> ######################################################################## >>> Use REPLY-ALL to reply to list >>> >>> To unsubscribe from the XROOTD-L list, click the following link: >>> https://listserv.slac.stanford.edu/cgi-bin/wa?SUBED1=XROOTD-L&A=1 >>> > > > > ######################################################################## > Use REPLY-ALL to reply to list > > To unsubscribe from the XROOTD-L list, click the following link: > https://listserv.slac.stanford.edu/cgi-bin/wa?SUBED1=XROOTD-L&A=1 > ######################################################################## Use REPLY-ALL to reply to list To unsubscribe from the XROOTD-L list, click the following link: https://listserv.slac.stanford.edu/cgi-bin/wa?SUBED1=XROOTD-L&A=1