Nanoseconds? You need something like a GPS (run of the mill is good to 10-50 ns) or IEEE-1588 timing distribution (Precision Time Protocol)
If you have accurate 1pps to appropriate hardware on your nodes, then getting (much better) than sub-microsecond timing is more a matter of software than the hardware. James Lux, P.E. Task Manager, FINDER – Finding Individuals for Disaster and Emergency Response Co-Principal Investigator, SCaN Testbed (née CoNNeCT) Project Jet Propulsion Laboratory 4800 Oak Grove Drive, MS 161-213 Pasadena CA 91109 +1(818)354-2075 +1(818)395-2714 (cell) From: Matt Hurd <[email protected]<mailto:[email protected]>> Date: Saturday, August 9, 2014 at 5:16 PM To: Walid <[email protected]<mailto:[email protected]>> Cc: "[email protected]<mailto:[email protected]>" <[email protected]<mailto:[email protected]>> Subject: Re: [Beowulf] ELK query "Elasticsearch, logstash and Kibana" Can it do better than millisecond time stamps yet? My network stuff needs nanoseconds or better... --Matt. On 7 August 2014 12:48, Walid <[email protected]<mailto:[email protected]>> wrote: Hi, I am interested to see if any one is already using ELK for HPC related logs. i would like to know more about what metrics, information, reports they are generating and logstash patterns, filters, any groks used. I have just started working on this starting with the configuration management side of systems, however i see huge potential for people who can not afford to have splunk, I am thinking scheduler, interconnect, GPFS, provisioning, system logs, job tractability, metrics from accounting file, profiling, better failure management and visualisation. kind regards Walid _______________________________________________ Beowulf mailing list, [email protected]<mailto:[email protected]> sponsored by Penguin Computing To change your subscription (digest mode or unsubscribe) visit http://www.beowulf.org/mailman/listinfo/beowulf
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