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Hi Andy, I am looking at using something very similar in my setup and I was wondering about the data that I am seeing in the log files. In my data servers I am using: cms.perf int 5m pgm /usr/share/xrootd/utils/XrdOlbMonPerf 300 In my cmsd.log files I see lines like: 161028 00:05:59 449 Report_Usage cpu=7 net=72 xeq=0 mem=99 pag=0 dsk=53 23414869 being generated every 10 minutes. I would have expected to see this every five minutes based on the interval of 5 minutes. Am I missing something? Also, does the log line indicate data being collected from the performance monitoring program, or data being forwarded to the redirector? In the redirector I see lines like: 161028 01:45:59 27500 Node: storage-23-14.local load=9; cpu=10 net=13 inq=2 mem=99 pag=0 dsk=23368366 utl=53 shr=[100 3 0] The period between these lines (for the same data server) appears to be 110 minutes. Is the line above simply a periodic summary of the conditions that were last reported from the dataservers? Thanks, Patrick On 10/18/2016 03:23 PM, Andrew Hanushevsky wrote: > Hi Max, > > The load is calculated by the script you specify to run using cms.perf > > http://xrootd.org/doc/dev44/cms_config.htm#_Toc454223033 > > if you haven't specified it then only the file system loads are reported and > everything else is zero. We provide a sample script in the "utils" directory of > the source repo called XrdOlbMonPerf and it should work for any Linux system. > However, do verify as we normally don't update this script unless someone > complains and offers a solution. > > Andy > > -----Original Message----- From: Fischer, Max (SCC) > Sent: Tuesday, October 18, 2016 2:45 AM > To: [log in to unmask] > Subject: empty usage statistics (for cms.sched) > > Hi all, > > I'm investigating some broken load balancing in one of our sub-clusters. >> From a set of similar servers using a shared file system, about 1-2 show > considerably higher load (750 vs 30). > My attempt was to change `cms.sched` to prefer machines with low load, but there > was no effect from changing this policy. > > After switching on logging of `cms.ping` [1] statistics, it turns out that *all* > load statistics from servers are reported as 0: > 161018 11:32:09 25026 Node: f01-101-136-e.gridka.de load=0; cpu=0 net=0 inq=0 > mem=0 pag=0 dsk=871483960 utl=49 shr=[100 24 0] > > Do I have to adjust the configuration of server or manager to make this work? > The manager is running v4.3, the servers are running v4.3 and v4.4. > > Cheers, > Max > > [1] cms.ping docs > http://xrootd.org/doc/dev43/cms_config.htm#_Toc436250534 > ######################################################################## > 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