The error message
Unable to connect to xend: Connection refused. Is xend running?
can be caused by a number of issues, but if your xend.log contains lines regarding syntax, such as:
[2012-01-23 11:33:37 5670] INFO (SrvDaemon:227) Xend stopped due to signal 15. [2012-01-23 11:33:38 6427] INFO (SrvDaemon:332) Xend Daemon started [2012-01-23 11:33:38 6427] INFO (SrvDaemon:336) Xend changeset: unavailable. [2012-01-23 11:33:38 6427] ERROR (SrvDaemon:349) Exception starting xend (no element found: line 1, column 0) Traceback (most recent call last): File "/usr/lib64/python2.6/site-packages/xen/xend/server/SrvDaemon.py", line 341, in run servers = SrvServer.create() File "/usr/lib64/python2.6/site-packages/xen/xend/server/SrvServer.py", line 251, in create root.putChild('xend', SrvRoot()) File "/usr/lib64/python2.6/site-packages/xen/xend/server/SrvRoot.py", line 40, in __init__ self.get(name) File "/usr/lib64/python2.6/site-packages/xen/web/SrvDir.py", line 84, in get val = val.getobj() File "/usr/lib64/python2.6/site-packages/xen/web/SrvDir.py", line 52, in getobj self.obj = klassobj() File "/usr/lib64/python2.6/site-packages/xen/xend/server/SrvNode.py", line 30, in __init__ self.xn = XendNode.instance() File "/usr/lib64/python2.6/site-packages/xen/xend/XendNode.py", line 1140, in instance inst = XendNode() File "/usr/lib64/python2.6/site-packages/xen/xend/XendNode.py", line 158, in __init__ self._init_PPCIs() File "/usr/lib64/python2.6/site-packages/xen/xend/XendNode.py", line 270, in _init_PPCIs saved_ppcis = self.state_store.load_state('ppci') File "/usr/lib64/python2.6/site-packages/xen/xend/XendStateStore.py", line 104, in load_state dom = minidom.parse(xml_path) File "/usr/lib64/python2.6/site-packages/_xmlplus/dom/minidom.py", line 1915, in parse return expatbuilder.parse(file) File "/usr/lib64/python2.6/site-packages/_xmlplus/dom/expatbuilder.py", line 926, in parse result = builder.parseFile(fp) File "/usr/lib64/python2.6/site-packages/_xmlplus/dom/expatbuilder.py", line 211, in parseFile parser.Parse("", True) ExpatError: no element found: line 1, column 0
there is a good chance your xend database (stored, intuitively, in python syntax...) is suffering from corruption.
It is safe to remove the database but best practice to back it up so rename the directory:
# mv /var/lib/xend /var/lib/xend.bak # /etc/init.d/xend restart
Comments
THANK YOU so much, you just saved my butt.
Thank you so much. Your fix saved my day. It worked for me on my OVM3 server.
Regards
Omer
VERY VERY VERY of THANKS