Interconnectedness of all things

Which came 1st? Keeping log timestamps in sync

Monday Jan 19, 2009

Today I have been reminded why NTP is such a good idea in order to keep the concept of current time of nodes in sync for debugging distributed problems (such as a SAN). Knowing for sure that the order of events (even to the nearest second, though NTP is much more accurate) can really help weed out what is cause and what is effect. Also helps avoid the wrong turns in diagnosis when time across nodes is assumed to be accurate, and the assumption proves to be flawed.

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Posted at 05:35PM Jan 19, 2009 by clive in General
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Indeed and if your services run in different locations choosing a single timezone to run everything in also helps, UTC being the simplest....I seem to be repeating myself: http://blogs.sun.com/chrisg/entry/what_timezone_should_a_server

Posted by Chris Gerhard on January 19, 2009 at 07:23 PM GMT #

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