[PATCH] Fix 'memory leak' in xend

[Jim Fehlig <jfehlig@novell.com>]

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I found that xend's memory usage grows considerably when running a
script such as

while true; do xm new foo ; sleep 2s; xm delete foo ; sleep 2s; done

XendAPIStore maintains a list of class instances and in the case of
new/create operation, an associated VMMetrics object is stashed in the
list but never removed on delete/shutdown.  This patch removes the
instance by invoking XendBase.destroy() method.

Signed-off-by: Jim Fehlig <jfehlig@novell.com>


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diff -r 9071521d4864 tools/python/xen/xend/XendDomain.py
--- a/tools/python/xen/xend/XendDomain.py	Fri Sep 07 11:39:10 2007 +0100
+++ b/tools/python/xen/xend/XendDomain.py	Mon Sep 10 11:35:59 2007 -0600
@@ -1088,6 +1088,7 @@ class XendDomain:
         log.info("Domain %s (%s) deleted." %
                  (dominfo.getName(), dominfo.info.get('uuid')))
                 
+        dominfo.metrics.destroy()
         self._managed_domain_unregister(dominfo)
         self._remove_domain(dominfo)
         XendDevices.destroy_device_state(dominfo)

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