<html><head></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><div apple-content-edited="true"><p class="p2">I've had a few (this is growing number as the day goes on) number of customers with IBM Storage Manager eating loads of CPU cycles and causing slow downs as a result (SLES 10 SP1, mostly). </p><div>The common factor, at least at this end, seems to be ntp sycning against public ntp pool servers and Java, but Jez's report...... scary stuff...</div><div><br></div><div>Cheers,</div><div>Barry</div><div><br></div><div><br></div>
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<br><div><div>On 2 Jul 2012, at 14:12, Orlando Richards wrote:</div><br class="Apple-interchange-newline"><blockquote type="cite"><div>Hi Jez,<br><br>We've had a few issues with the leap second - but so far it has been isolated to redhat 6.2 systems.<br><br>What OS are you running on your affected server?<br><br>Cheers,<br>Orlando.<br><br><br>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><blockquote type="cite"><br></blockquote><blockquote type="cite">Jez<br></blockquote><blockquote type="cite"><br></blockquote><blockquote type="cite">---<br></blockquote><blockquote type="cite"><br></blockquote><blockquote type="cite">Jez Tucker<br></blockquote><blockquote type="cite"><br></blockquote><blockquote type="cite">Senior Sysadmin<br></blockquote><blockquote type="cite"><br></blockquote><blockquote type="cite">Rushes<br></blockquote><blockquote type="cite"><br></blockquote><blockquote type="cite">DDI: +44 (0) 207 851 6276<br></blockquote><blockquote type="cite"><br></blockquote><blockquote type="cite"><a href="http://www.rushes.co.uk">http://www.rushes.co.uk</a> <<a href="http://www.rushes.co.uk/">http://www.rushes.co.uk/</a>><br></blockquote><blockquote type="cite"><br></blockquote><blockquote type="cite"><br></blockquote><blockquote type="cite"><br></blockquote><blockquote type="cite">_______________________________________________<br></blockquote><blockquote type="cite">gpfsug-discuss mailing list<br></blockquote><blockquote type="cite"><a href="mailto:gpfsug-discuss@gpfsug.org">gpfsug-discuss@gpfsug.org</a><br></blockquote><blockquote type="cite"><a href="http://gpfsug.org/mailman/listinfo/gpfsug-discuss">http://gpfsug.org/mailman/listinfo/gpfsug-discuss</a><br></blockquote><br><br>-- <br> --<br> Dr Orlando Richards<br> Information Services<br>IT Infrastructure Division<br> Unix Section<br> Tel: 0131 650 4994<br><br>The University of Edinburgh is a charitable body, registered in Scotland, with registration number SC005336.<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></body></html>