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[Xen-users] xend does not start

To: 'Xen List' <xen-users@xxxxxxxxxxxxxxxxxxx>
Subject: [Xen-users] xend does not start
From: "Olivier B." <xen.list@xxxxxxxxx>
Date: Tue, 17 Aug 2010 19:42:15 +0200
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I have a Xen server which doesn't work anymore (xend refuse to start), apparently without any modification in configuration. Since it was an "old" Debian testing with Xen 3.4, I upgrade to the last debian testing packages, with Xen 4.0.

But I obtain the same problem : xend does not start.
I verified that Xen is running (with a pvops kernel from Debian, or and from Jeremy's Git), and xenfs (/proc/xen) is mounted.

In logs I have this errors :
[2010-08-17 19:04:16 2339] INFO (SrvDaemon:220) Xend exited with status 1.
[2010-08-17 19:07:57 5348] INFO (SrvDaemon:332) Xend Daemon started
[2010-08-17 19:07:57 5348] INFO (SrvDaemon:336) Xend changeset: unavailable.
[2010-08-17 19:07:59 5348] ERROR (SrvDaemon:349) Exception starting xend ((111, 'Connection refused'))
Traceback (most recent call last):
File "/usr/lib/xen-4.0/lib/python/xen/xend/server/SrvDaemon.py", line 341, in run
    servers = SrvServer.create()
File "/usr/lib/xen-4.0/lib/python/xen/xend/server/SrvServer.py", line 251, in create
    root.putChild('xend', SrvRoot())
File "/usr/lib/xen-4.0/lib/python/xen/xend/server/SrvRoot.py", line 40, in __init__
  File "/usr/lib/xen-4.0/lib/python/xen/web/SrvDir.py", line 84, in get
    val = val.getobj()
  File "/usr/lib/xen-4.0/lib/python/xen/web/SrvDir.py", line 52, in getobj
    self.obj = klassobj()
File "/usr/lib/xen-4.0/lib/python/xen/xend/server/SrvNode.py", line 30, in __init__
    self.xn = XendNode.instance()
File "/usr/lib/xen-4.0/lib/python/xen/xend/XendNode.py", line 1141, in instance
File "/usr/lib/xen-4.0/lib/python/xen/xend/XendNode.py", line 578, in save
File "/usr/lib/xen-4.0/lib/python/xen/xend/XendNode.py", line 594, in save_networks
    for network_uuid in XendNetwork.get_all()])
File "/usr/lib/xen-4.0/lib/python/xen/xend/XendBase.py", line 101, in get_record
    for key in keys])
File "/usr/lib/xen-4.0/lib/python/xen/xend/XendNetwork.py", line 196, in get_VIFs
    vms = XendDomain.instance().get_all_vms()
File "/usr/lib/xen-4.0/lib/python/xen/xend/XendDomain.py", line 1882, in instance
File "/usr/lib/xen-4.0/lib/python/xen/xend/XendDomain.py", line 114, in init
File "/usr/lib/xen-4.0/lib/python/xen/xend/xenstore/xstransact.py", line 355, in Mkdir
    complete(path, lambda t: t.mkdir(*args))
File "/usr/lib/xen-4.0/lib/python/xen/xend/xenstore/xstransact.py", line 361, in complete
    t = xstransact(path)
File "/usr/lib/xen-4.0/lib/python/xen/xend/xenstore/xstransact.py", line 29, in __init__
    self.transaction = xshandle().transaction_start()
File "/usr/lib/xen-4.0/lib/python/xen/xend/xenstore/xsutil.py", line 18, in xshandle
    xs_handle = xen.lowlevel.xs.xs()
Error: (111, 'Connection refused')
[2010-08-17 19:07:59 5347] INFO (SrvDaemon:220) Xend exited with status 1.

How can I debug that ?


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