[Xen-changelog] [xen-unstable] Fix memory leak in xend

[Xen patchbot-unstable <patchbot-unstable@xxxxxxxxxxxxxxxxxxx>]

# HG changeset patch
# User kfraser@xxxxxxxxxxxxxxxxxxxxx
# Date 1189514475 -3600
# Node ID 4cd10e49c3f8086ab26a3a8ddd87928dc8b20bec
# Parent  d146097e049deb5b3d6c632db26dc86b9c161f1e
Fix memory leak in xend

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@xxxxxxxxxx>
---
 tools/python/xen/xend/XendDomain.py |    1 +
 1 files changed, 1 insertion(+)

diff -r d146097e049d -r 4cd10e49c3f8 tools/python/xen/xend/XendDomain.py
--- a/tools/python/xen/xend/XendDomain.py       Tue Sep 11 13:40:44 2007 +0100
+++ b/tools/python/xen/xend/XendDomain.py       Tue Sep 11 13:41:15 2007 +0100
@@ -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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