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	<title>The Pythian Blog &#187; HW</title>
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		<title>Resolving High Water Enqueue Contention</title>
		<link>http://www.pythian.com/news/1008/resolving-hw-enqueue-contention/</link>
		<comments>http://www.pythian.com/news/1008/resolving-hw-enqueue-contention/#comments</comments>
		<pubDate>Wed, 21 May 2008 16:43:32 +0000</pubDate>
		<dc:creator>Riyaj Shamsudeen</dc:creator>
				<category><![CDATA[Oracle]]></category>
		<category><![CDATA[Oracle E-Business Suite]]></category>
		<category><![CDATA[enqueue]]></category>
		<category><![CDATA[high water]]></category>
		<category><![CDATA[high water mark]]></category>
		<category><![CDATA[HW]]></category>
		<category><![CDATA[HWM]]></category>
		<category><![CDATA[_bump_highwater_mark_count]]></category>

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		<description><![CDATA[Recently, I had a few email exchanges &#8212; on the Oracle-l list and offline &#8212; about HW enqueue contention. A few interesting observations emerged from test cases I created during that discussion. HW Enqueue When a session needs access to a resource, it requests a lock on that resource in a specific mode. Internally, lock [...]]]></description>
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