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<?xml-stylesheet type="text/xsl" href="http://blogs.technet.com/utility/FeedStylesheets/rss.xsl" media="screen"?><rss version="2.0" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:slash="http://purl.org/rss/1.0/modules/slash/" xmlns:wfw="http://wellformedweb.org/CommentAPI/"><channel><title>Troubleshooting High LSASS CPU Utilization on a Domain Controller (Part 1 of 2)</title><link>http://blogs.technet.com/b/askds/archive/2007/08/20/troubleshooting-high-lsass-cpu-utilization-on-a-domain-controller-part-1-of-2.aspx</link><description>Hi, Ned here. Today I&amp;rsquo;m going to talk about troubleshooting Domain Controllers that are responding poorly due to high LSASS CPU utilization. I&amp;rsquo;ve split this article into two parts because there are actually two major forks that happen in this</description><dc:language>en-US</dc:language><generator>Telligent Evolution Platform Developer Build (Build: 5.6.50428.7875)</generator><item><title>re: Troubleshooting High LSASS CPU Utilization on a Domain Controller (Part 1 of 2)</title><link>http://blogs.technet.com/b/askds/archive/2007/08/20/troubleshooting-high-lsass-cpu-utilization-on-a-domain-controller-part-1-of-2.aspx#3372536</link><pubDate>Thu, 02 Dec 2010 03:50:05 GMT</pubDate><guid isPermaLink="false">d5e57398-b9ef-4490-9955-07cbb4e4a80d:3372536</guid><dc:creator>HighQual</dc:creator><description>&lt;p&gt;mbalsby did you find any solution? We have the same issue on one of our DC&lt;/p&gt;
&lt;div style="clear:both;"&gt;&lt;/div&gt;&lt;img src="http://blogs.technet.com/aggbug.aspx?PostID=3372536" width="1" height="1"&gt;</description></item><item><title>re: Troubleshooting High LSASS CPU Utilization on a Domain Controller (Part 1 of 2)</title><link>http://blogs.technet.com/b/askds/archive/2007/08/20/troubleshooting-high-lsass-cpu-utilization-on-a-domain-controller-part-1-of-2.aspx#3236884</link><pubDate>Thu, 07 May 2009 16:53:59 GMT</pubDate><guid isPermaLink="false">d5e57398-b9ef-4490-9955-07cbb4e4a80d:3236884</guid><dc:creator>NedPyle [MSFT]</dc:creator><description>&lt;p&gt;&amp;quot;Provider load failure&amp;quot; sounds like a WMI failure. Rather than troubleshoot further here, I'd suggest opening a support case with us, it sounds like there are multiple problems going on here.&lt;/p&gt;
&lt;div style="clear:both;"&gt;&lt;/div&gt;&lt;img src="http://blogs.technet.com/aggbug.aspx?PostID=3236884" width="1" height="1"&gt;</description></item><item><title>Provider load failure: Troubleshooting High LSASS CPU Utilization on a Domain Controller (Part 1 of 2)</title><link>http://blogs.technet.com/b/askds/archive/2007/08/20/troubleshooting-high-lsass-cpu-utilization-on-a-domain-controller-part-1-of-2.aspx#3236872</link><pubDate>Thu, 07 May 2009 16:34:15 GMT</pubDate><guid isPermaLink="false">d5e57398-b9ef-4490-9955-07cbb4e4a80d:3236872</guid><dc:creator>mbalsby</dc:creator><description>&lt;p&gt;Here is the error: Provider load failure&lt;/p&gt;
&lt;p&gt;C:\Program Files (x86)\Server Performance Advisor&amp;gt;spacmd start &amp;quot;active directory&amp;quot;&lt;/p&gt;
&lt;p&gt;The command completed successfully.&lt;/p&gt;
&lt;p&gt;C:\Program Files (x86)\Server Performance Advisor&amp;gt;spacmd stop &amp;quot;active directory&amp;quot;&lt;/p&gt;
&lt;p&gt;The command completed successfully.&lt;/p&gt;
&lt;p&gt;C:\Program Files (x86)\Server Performance Advisor&amp;gt;spacmd compile &amp;quot;active directo&lt;/p&gt;
&lt;p&gt;ry&amp;quot;&lt;/p&gt;
&lt;p&gt;Compiling: Active Directory&lt;/p&gt;
&lt;p&gt; &amp;nbsp; &amp;nbsp; &amp;nbsp;C:\PerfLogs\Data\Active Directory =&amp;gt; C:\PerfLogs\Transfer\Active Directory&lt;/p&gt;
&lt;p&gt;Provider load failure&lt;/p&gt;
&lt;p&gt;C:\Program Files (x86)\Server Performance Advisor&amp;gt;&lt;/p&gt;
&lt;div style="clear:both;"&gt;&lt;/div&gt;&lt;img src="http://blogs.technet.com/aggbug.aspx?PostID=3236872" width="1" height="1"&gt;</description></item><item><title>Windows Server 2003 Performance Advisor (SPA) - no reports generated</title><link>http://blogs.technet.com/b/askds/archive/2007/08/20/troubleshooting-high-lsass-cpu-utilization-on-a-domain-controller-part-1-of-2.aspx#3236765</link><pubDate>Thu, 07 May 2009 13:41:31 GMT</pubDate><guid isPermaLink="false">d5e57398-b9ef-4490-9955-07cbb4e4a80d:3236765</guid><dc:creator>mbalsby</dc:creator><description>&lt;p&gt;Hi Directory Services Team &lt;/p&gt;
&lt;p&gt;We are troubleshooting high CPU load on one of our Domain Controller. In the SCOM 2007 LSASS Processor time monitor view is shows normal load on 3 out of 4 DC’s&lt;/p&gt;
&lt;p&gt;One DC peaks With 60-100% CPU load primarily on the LSASS.exe process. This DC is not holding the PDCE role, but has the following roles:&lt;/p&gt;
&lt;p&gt;1.	Domain naming operation master&lt;/p&gt;
&lt;p&gt;2.	Schema master&lt;/p&gt;
&lt;p&gt;The symptoms:&lt;/p&gt;
&lt;p&gt;•	Long response time from clients. Citrix Edgesight monitoring reports shows this from both Windows XP and 2003 servers.&lt;/p&gt;
&lt;p&gt;•	Long response times when accessing DFS resources (through MS DFS / NetApp DFS CIFS)&lt;/p&gt;
&lt;p&gt;We have followed the &lt;a rel="nofollow" target="_new" href="http://blogs.technet.com/askds/archive/2007/08/20/troubleshooting-high-lsass-cpu-utilization-on-a-domain-controller-part-1-of-2.aspx"&gt;http://blogs.technet.com/askds/archive/2007/08/20/troubleshooting-high-lsass-cpu-utilization-on-a-domain-controller-part-1-of-2.aspx&lt;/a&gt; article without success.&lt;/p&gt;
&lt;p&gt;Our problem right now is that the Windows Server 2003 Performance Advisor (SPA) report does not show after running the data collector&lt;/p&gt;
&lt;div style="clear:both;"&gt;&lt;/div&gt;&lt;img src="http://blogs.technet.com/aggbug.aspx?PostID=3236765" width="1" height="1"&gt;</description></item><item><title>Conficker causes LSASS to consume CPU Time on Domain Controllers</title><link>http://blogs.technet.com/b/askds/archive/2007/08/20/troubleshooting-high-lsass-cpu-utilization-on-a-domain-controller-part-1-of-2.aspx#3227268</link><pubDate>Thu, 16 Apr 2009 19:55:08 GMT</pubDate><guid isPermaLink="false">d5e57398-b9ef-4490-9955-07cbb4e4a80d:3227268</guid><dc:creator>Ask the Directory Services Team</dc:creator><description>&lt;p&gt;Hi Gautam here, I wanted to blog about a high-impact problem we have been seeing recently. The problem&lt;/p&gt;
&lt;img src="http://blogs.technet.com/aggbug.aspx?PostID=3227268" width="1" height="1"&gt;</description></item><item><title>Domain Infrastructure Research</title><link>http://blogs.technet.com/b/askds/archive/2007/08/20/troubleshooting-high-lsass-cpu-utilization-on-a-domain-controller-part-1-of-2.aspx#3193661</link><pubDate>Wed, 28 Jan 2009 18:25:55 GMT</pubDate><guid isPermaLink="false">d5e57398-b9ef-4490-9955-07cbb4e4a80d:3193661</guid><dc:creator>Confluence: Campus Active Directory</dc:creator><description>&lt;p&gt;Microsoft Support Documents 2008 &amp;quot;Lag site&amp;quot; or &amp;quot;hot site&amp;quot; (aka delayed replication) for Active Directory Disaster Recovery support&lt;/p&gt;
&lt;img src="http://blogs.technet.com/aggbug.aspx?PostID=3193661" width="1" height="1"&gt;</description></item><item><title>Top AskDS Blog Posts</title><link>http://blogs.technet.com/b/askds/archive/2007/08/20/troubleshooting-high-lsass-cpu-utilization-on-a-domain-controller-part-1-of-2.aspx#3158740</link><pubDate>Mon, 24 Nov 2008 18:16:09 GMT</pubDate><guid isPermaLink="false">d5e57398-b9ef-4490-9955-07cbb4e4a80d:3158740</guid><dc:creator>Ask the Directory Services Team</dc:creator><description>&lt;p&gt;We’ve been at this for over a year (since August 2007), with more than 100 posts (127 to be exact), so&lt;/p&gt;
&lt;img src="http://blogs.technet.com/aggbug.aspx?PostID=3158740" width="1" height="1"&gt;</description></item><item><title>re: Troubleshooting High LSASS CPU Utilization on a Domain Controller (Part 1 of 2)</title><link>http://blogs.technet.com/b/askds/archive/2007/08/20/troubleshooting-high-lsass-cpu-utilization-on-a-domain-controller-part-1-of-2.aspx#1798179</link><pubDate>Wed, 22 Aug 2007 00:01:46 GMT</pubDate><guid isPermaLink="false">d5e57398-b9ef-4490-9955-07cbb4e4a80d:1798179</guid><dc:creator>NedPyle [MSFT]</dc:creator><description>&lt;p&gt;Hi Brad,&lt;/p&gt;
&lt;p&gt;I definitely wrestled with that when creating this post. I find that some of the detail is lacking from the NTDS diagnostic entries for this that I can get from SPA or Tracing, so I ended up writing up all the logging then removing it. The MSDN link I included for inefficient LDAP does point to it at the very end, but it's not as good as your link. &lt;/p&gt;
&lt;p&gt;I may revisit this with some other load scenarios caused by RPC/SMB/NP API calls at some point as well, since none of this example or LDAP logging will be helpful there.&lt;/p&gt;
&lt;p&gt;I really appreciate the comment!&lt;/p&gt;
&lt;p&gt;-Ned&lt;/p&gt;
&lt;div style="clear:both;"&gt;&lt;/div&gt;&lt;img src="http://blogs.technet.com/aggbug.aspx?PostID=1798179" width="1" height="1"&gt;</description></item><item><title>re: Troubleshooting High LSASS CPU Utilization on a Domain Controller (Part 1 of 2)</title><link>http://blogs.technet.com/b/askds/archive/2007/08/20/troubleshooting-high-lsass-cpu-utilization-on-a-domain-controller-part-1-of-2.aspx#1791888</link><pubDate>Tue, 21 Aug 2007 01:15:39 GMT</pubDate><guid isPermaLink="false">d5e57398-b9ef-4490-9955-07cbb4e4a80d:1791888</guid><dc:creator>BooRadely</dc:creator><description>&lt;p&gt;Great post with good details. &amp;nbsp;Surprised you didnt mention Filed Engineering since ti shows these bad queries.&lt;/p&gt;
&lt;p&gt;&lt;a rel="nofollow" target="_new" href="http://www.activedir.org/article.aspx?aid=97"&gt;http://www.activedir.org/article.aspx?aid=97&lt;/a&gt;&lt;/p&gt;
&lt;div style="clear:both;"&gt;&lt;/div&gt;&lt;img src="http://blogs.technet.com/aggbug.aspx?PostID=1791888" width="1" height="1"&gt;</description></item></channel></rss>