<html><head></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; ">This has so far hit all almost all of the places I work with (not so much GPFS crashing, but certainly storage manager going bezerk) - the majority of them do not use public NTP servers. In most cases no one actually noticed until it was pointed out, well worth a quick 'top' of your storage servers if you're using Engenio/LSI/NetApp based units (ie, DS3/4/5000).<div><br></div><div>The fix is here: <a href="http://blog.wpkg.org/2012/07/01/java-leap-second-bug-30-june-1-july-2012-fix/">http://blog.wpkg.org/2012/07/01/java-leap-second-bug-30-june-1-july-2012-fix/</a></div><div><br></div><div>But of course I wouldn't mess with the time in production unless you've got GPFS shutdown first.</div><div><br></div><div>Cheers,</div><div><div>B<br><div><div><br></div><div> <div><div apple-content-edited="true">
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<br><div><div>On 2 Jul 2012, at 14:59, Jonathan Buzzard wrote:</div><br class="Apple-interchange-newline"><blockquote type="cite"><div>On 02/07/12 14:03, Jez Tucker wrote:<br><blockquote type="cite">Just had a lovely one.<br></blockquote><blockquote type="cite"><br></blockquote><blockquote type="cite">As I’m, sure all of you are aware by now, there’s been much fun with<br></blockquote><blockquote type="cite">some of the NTP Stratum 1 servers not correctly accounting for the<br></blockquote><blockquote type="cite">leap-seocnd last night.<br></blockquote><blockquote type="cite"><br></blockquote><blockquote type="cite"><a href="http://www.dailymail.co.uk/news/article-2167588/Leap-second-2012-Websites-crash-time-hiccup-caused-online-chaos.html?ito=feeds-newsxml">http://www.dailymail.co.uk/news/article-2167588/Leap-second-2012-Websites-crash-time-hiccup-caused-online-chaos.html?ito=feeds-newsxml</a><br></blockquote><blockquote type="cite"><br></blockquote><blockquote type="cite"><a href="http://www.telegraph.co.uk/technology/news/9369671/Leap-second-brings-down-top-websites.html">http://www.telegraph.co.uk/technology/news/9369671/Leap-second-brings-down-top-websites.html</a><br></blockquote><blockquote type="cite"><br></blockquote><blockquote type="cite">You may wish to turn off ntp on your servers and correct your NTP to<br></blockquote><blockquote type="cite">trusted servers.<br></blockquote><blockquote type="cite"><br></blockquote><blockquote type="cite">A clock skew from <a href="http://ntp.pool.org">ntp.pool.org</a> just took out one of our servers and the<br></blockquote><blockquote type="cite">node was expelled from the cluster.<br></blockquote><br>Hum, not sure I would run my production servers directly off something<br>from <a href="http://ntp.pool.org">ntp.pool.org</a>, I would at least put a local server in between.<br><br>Not notice any problems here, but then we are running latest RHEL 5.8<br>and latest IBM Storage Manager (10.83) :-)<br><br>JAB.<br><br>--<br>Jonathan A. Buzzard Tel: +441382-386998<br>Storage Administrator, College of Life Sciences<br>University of Dundee, DD1 5EH<br><br>The University of Dundee is a registered Scottish Charity, No: SC015096<br><br>_______________________________________________<br>gpfsug-discuss mailing list<br><a href="mailto:gpfsug-discuss@gpfsug.org">gpfsug-discuss@gpfsug.org</a><br>http://gpfsug.org/mailman/listinfo/gpfsug-discuss<br></div></blockquote></div><br></div></div></div></div></div></body></html>