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Re: [Xen-users] Restarting xend while domU are running
 
 
It looks like there isnt enough memory to start xend..
 
 How much free memory have you got On 9 August 2011 10:48, Bertrand LUPART  <bertrand.lupart@xxxxxxxxxx> wrote:
 Hello, 
 
Story: 
- xend 3.2.1 crashed on Dom0 and didn't restarted (xend.log below) 
- DomU are still running 
 
 
Question: 
- Is it safe to restart xend while DomU are still running? Won't xend 
try to start allready running DomU and mess up stuff? 
- Is it safer to log into each DomU and shutdown it manually before 
restarting xend? 
 
Thanx, 
 
 
 
----8<----8<----8<---- 
[2011-07-13 06:35:24 3509] CRITICAL (SrvDaemon:231) Xend died due to 
signal 9!  Restarting it. 
[2011-07-13 06:35:24 8776] INFO (SrvDaemon:331) Xend Daemon started 
[2011-07-13 06:35:25 8776] INFO (SrvDaemon:335) Xend changeset: 
unavailable. 
[2011-07-13 06:35:26 8776] INFO (SrvDaemon:342) Xend version: Unknown. 
[2011-07-13 06:35:32 8776] INFO (XendNetwork:114) Not recreating missing 
unmanaged network eth0 
[2011-07-13 06:35:34 8776] DEBUG (XendDomainInfo:132) 
XendDomainInfo.recreate({'max_vcpu_id': 3, 'cpu_time': 
1268771652253510L, 'ssidref': 73744, 'hvm': 0, 'shutdown_reason': 0, 
'dying': 0, 'online_vcpus': 4, 'domid': 0, 'pau 
sed': 0, 'crashed': 0, 'running': 1, 'maxmem_kb': 17179869180L, 
'shutdown': 0, 'mem_kb': 643072L, 'handle': [0, 0, 0, 0, 0, 0, 0, 0, 0, 
0, 0, 0, 0, 0, 0, 0], 'blocked': 0, 'name': 'Domain-0'}) 
[2011-07-13 06:35:34 8776] INFO (XendDomainInfo:149) Recreating domain 
0, UUID 00000000-0000-0000-0000-000000000000. at /local/domain/0 
[2011-07-13 06:35:36 8776] DEBUG (XendDomain:443) Adding Domain: 0 
[2011-07-13 06:35:36 8776] DEBUG (XendDomain:379) number of vcpus to use 
is 0 
[2011-07-13 06:35:36 8776] DEBUG (XendDomainInfo:132) 
XendDomainInfo.recreate({'max_vcpu_id': 0, 'cpu_time': 576190711184462L, 
'ssidref': 73744, 'hvm': 0, 'shutdown_reason': 0, 'dying': 0, 
'online_vcpus': 1, 'domid': 2, 'paus 
ed': 0, 'crashed': 0, 'running': 0, 'maxmem_kb': 2097152L, 'shutdown': 
0, 'mem_kb': 2097152L, 'handle': [115, 125, 2, 22, 224, 144, 141, 222, 
233, 135, 135, 50, 188, 10, 17, 249], 'blocked': 1}) 
[2011-07-13 06:35:36 8776] INFO (XendDomainInfo:149) Recreating domain 
2, UUID 737d0216-e090-8dde-e987-8732bc0a11f9. at /local/domain/2 
[2011-07-13 06:35:36 8776] DEBUG (XendDomainInfo:1092) 
XendDomainInfo.handleShutdownWatch 
[2011-07-13 06:35:37 8776] DEBUG (XendDomain:443) Adding Domain: 2 
[2011-07-13 06:35:37 8776] DEBUG (XendDomainInfo:132) 
XendDomainInfo.recreate({'max_vcpu_id': 0, 'cpu_time': 16677756695156L, 
'ssidref': 73744, 'hvm': 0, 'shutdown_reason': 0, 'dying': 0, 
'online_vcpus': 1, 'domid': 3, 'pause 
d': 0, 'crashed': 0, 'running': 0, 'maxmem_kb': 262144L, 'shutdown': 0, 
'mem_kb': 262144L, 'handle': [157, 213, 214, 223, 183, 17, 225, 225, 
231, 247, 133, 104, 14, 200, 1, 221], 'blocked': 1}) 
[2011-07-13 06:35:37 8776] INFO (XendDomainInfo:149) Recreating domain 
3, UUID 9dd5d6df-b711-e1e1-e7f7-85680ec801dd. at /local/domain/3 
[2011-07-13 06:35:37 8776] DEBUG (XendDomain:443) Adding Domain: 3 
[2011-07-13 06:35:37 8776] DEBUG (XendDomainInfo:132) 
XendDomainInfo.recreate({'max_vcpu_id': 0, 'cpu_time': 53612680526673L, 
'ssidref': 73744, 'hvm': 0, 'shutdown_reason': 0, 'dying': 0, 
'online_vcpus': 1, 'domid': 12, 'paus 
ed': 0, 'crashed': 0, 'running': 0, 'maxmem_kb': 1048576L, 'shutdown': 
0, 'mem_kb': 1048576L, 'handle': [169, 167, 192, 176, 175, 15, 178, 198, 
162, 180, 45, 237, 175, 17, 143, 169], 'blocked': 1}) 
[2011-07-13 06:35:41 8776] INFO (XendDomainInfo:149) Recreating domain 
12, UUID a9a7c0b0-af0f-b2c6-a2b4-2dedaf118fa9. at /local/domain/12 
[2011-07-13 06:35:41 8776] DEBUG (XendDomain:443) Adding Domain: 12 
[2011-07-13 06:35:41 8776] DEBUG (XendDomainInfo:132) 
XendDomainInfo.recreate({'max_vcpu_id': 0, 'cpu_time': 19924498988769L, 
'ssidref': 73744, 'hvm': 0, 'shutdown_reason': 0, 'dying': 0, 
'online_vcpus': 1, 'domid': 15, 'paus 
ed': 0, 'crashed': 0, 'running': 0, 'maxmem_kb': 2097152L, 'shutdown': 
0, 'mem_kb': 2097152L, 'handle': [210, 97, 109, 81, 50, 232, 69, 47, 
234, 69, 222, 40, 172, 108, 108, 47], 'blocked': 1}) 
[2011-07-13 06:35:41 8776] INFO (XendDomainInfo:149) Recreating domain 
15, UUID d2616d51-32e8-452f-ea45-de28ac6c6c2f. at /local/domain/15 
[2011-07-13 06:35:42 8776] DEBUG (XendDomain:443) Adding Domain: 15 
[2011-07-13 06:35:42 8776] DEBUG (XendDomainInfo:132) 
XendDomainInfo.recreate({'max_vcpu_id': 0, 'cpu_time': 63299717248945L, 
'ssidref': 73744, 'hvm': 0, 'shutdown_reason': 0, 'dying': 0, 
'online_vcpus': 1, 'domid': 18, 'paus 
ed': 0, 'crashed': 0, 'running': 0, 'maxmem_kb': 2097152L, 'shutdown': 
0, 'mem_kb': 2097152L, 'handle': [87, 12, 87, 253, 157, 185, 57, 64, 81, 
38, 67, 153, 199, 214, 42, 192], 'blocked': 1}) 
[2011-07-13 06:35:42 8776] INFO (XendDomainInfo:149) Recreating domain 
18, UUID 570c57fd-9db9-3940-5126-4399c7d62ac0. at /local/domain/18 
[2011-07-13 06:35:42 8776] DEBUG (XendDomain:443) Adding Domain: 18 
[2011-07-13 06:35:42 8776] DEBUG (XendDomainInfo:1092) 
XendDomainInfo.handleShutdownWatch 
[2011-07-13 06:35:42 8776] DEBUG (XendDomainInfo:1092) 
XendDomainInfo.handleShutdownWatch 
[2011-07-13 06:35:42 8776] DEBUG (XendDomainInfo:1092) 
XendDomainInfo.handleShutdownWatch 
[2011-07-13 06:35:42 8776] DEBUG (XendDomainInfo:1092) 
XendDomainInfo.handleShutdownWatch 
[2011-07-13 06:35:42 8776] DEBUG (XendDomainInfo:1092) 
XendDomainInfo.handleShutdownWatch 
[2011-07-13 06:35:44 8776] ERROR (XendDomainInfo:2619) bridge_to_network 
Traceback (most recent call last): 
  File "/usr/lib/xen-3.2-1/lib/python/xen/xend/XendDomainInfo.py", line 
2610, in get_dev_xenapi_config 
    for (b,ifs) in Brctl.get_state().items() 
  File "/usr/lib/xen-3.2-1/lib/python/xen/util/Brctl.py", line 33, in 
get_state 
    fin = os.popen(CMD_BRCTL + ' show', 'r') 
OSError: [Errno 12] Cannot allocate memory 
[2011-07-13 06:35:51 8776] ERROR (XendDomainInfo:2619) bridge_to_network 
Traceback (most recent call last): 
  File "/usr/lib/xen-3.2-1/lib/python/xen/xend/XendDomainInfo.py", line 
2617, in get_dev_xenapi_config 
    config.get('bridge')).get_uuid() 
  File "/usr/lib/xen-3.2-1/lib/python/xen/xend/XendNode.py", line 501, 
in bridge_to_network 
    'brctl show | cut -d "\n" -f 2 | cut -f 1') 
  File "/usr/lib/python2.5/commands.py", line 53, in getstatusoutput 
    pipe = os.popen('{ ' + cmd + '; } 2>&1', 'r') 
OSError: [Errno 12] Cannot allocate memory 
[2011-07-13 06:35:53 8776] WARNING (XendAPI:678) API call: 
VBD.set_device not found 
[2011-07-13 06:35:53 8776] WARNING (XendAPI:678) API call: VBD.set_type 
not found 
[2011-07-13 06:35:53 8776] WARNING (XendAPI:678) API call: 
session.get_all_records not found 
[2011-07-13 06:35:53 8776] WARNING (XendAPI:678) API call: 
event.get_record not found 
[2011-07-13 06:35:53 8776] WARNING (XendAPI:678) API call: event.get_all 
not found 
[2011-07-13 06:35:53 8776] WARNING (XendAPI:678) API call: 
VM.get_auto_power_on not found 
[2011-07-13 06:35:53 8776] WARNING (XendAPI:678) API call: 
VM.set_auto_power_on not found 
[2011-07-13 06:35:53 8776] WARNING (XendAPI:678) API call: 
VIF.get_network not found 
[2011-07-13 06:35:53 8776] WARNING (XendAPI:678) API call: 
VIF.set_device not found 
[2011-07-13 06:35:53 8776] WARNING (XendAPI:678) API call: VIF.set_MAC 
not found 
[2011-07-13 06:35:53 8776] WARNING (XendAPI:678) API call: VIF.set_MTU 
not found 
[2011-07-13 06:35:53 8776] WARNING (XendAPI:678) API call: debug.get_all 
not found 
[2011-07-13 06:35:53 8776] ERROR (SrvDaemon:353) Exception starting xend 
(can't start new thread) 
Traceback (most recent call last): 
  File "/usr/lib/xen-3.2-1/lib/python/xen/xend/server/SrvDaemon.py", 
line 346, in run 
    servers.start(status) 
  File "/usr/lib/xen-3.2-1/lib/python/xen/xend/server/SrvServer.py", 
line 117, in start 
    thread.start() 
  File "/usr/lib/python2.5/threading.py", line 440, in start 
    _start_new_thread(self.__bootstrap, ()) 
error: can't start new thread 
[2011-07-13 06:36:09 3509] INFO (SrvDaemon:219) Xend exited with status 
1. 
---->8---->8---->8---- 
 
 
-- 
Bertrand LUPART 
 
 
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