On Mon, Sep 12, 2016 at 2:49 PM, <aleksey.maksimov@it-kb.ru> wrote:
Ok. I found log-file /var/log/ovirt-engine/host-deploy/ovirt-host-mgmt-20160912020013-kom-ad01-vm31.holding.com-null.log with this:

...
2016-09-12 02:00:13 ERROR otopi.plugins.otopi.packagers.yumpackager yumpackager.error:85 Yum Cannot queue package iproute: Cannot find a valid baseurl for repo: base/7/x86_64
2016-09-12 02:00:13 DEBUG otopi.context context._executeMethod:142 method exception
Traceback (most recent call last):
  File "/tmp/ovirt-B4lcSm14u9/pythonlib/otopi/context.py", line 132, in _executeMethod
    method['method']()
  File "/tmp/ovirt-B4lcSm14u9/otopi-plugins/otopi/network/hostname.py", line 54, in _internal_packages
    self.packager.install(packages=('iproute',))
  File "/tmp/ovirt-B4lcSm14u9/otopi-plugins/otopi/packagers/yumpackager.py", line 295, in install
    ignoreErrors=ignoreErrors
  File "/tmp/ovirt-B4lcSm14u9/pythonlib/otopi/miniyum.py", line 851, in install
    **kwargs
  File "/tmp/ovirt-B4lcSm14u9/pythonlib/otopi/miniyum.py", line 495, in _queue
    provides = self._queryProvides(packages=(package,))
  File "/tmp/ovirt-B4lcSm14u9/pythonlib/otopi/miniyum.py", line 433, in _queryProvides
    for po in self._yb.searchPackageProvides(args=packages):
  File "/usr/lib/python2.7/site-packages/yum/__init__.py", line 3429, in searchPackageProvides
    where = self.returnPackagesByDep(arg)
  File "/usr/lib/python2.7/site-packages/yum/__init__.py", line 4255, in returnPackagesByDep
    return self.pkgSack.searchProvides(depstring)
  File "/usr/lib/python2.7/site-packages/yum/__init__.py", line 1079, in <lambda>
    pkgSack = property(fget=lambda self: self._getSacks(),
  File "/usr/lib/python2.7/site-packages/yum/__init__.py", line 784, in _getSacks
    self.repos.populateSack(which=repos)
  File "/usr/lib/python2.7/site-packages/yum/repos.py", line 344, in populateSack
    self.doSetup()
  File "/usr/lib/python2.7/site-packages/yum/repos.py", line 158, in doSetup
    self.ayum.plugins.run('postreposetup')
  File "/usr/lib/python2.7/site-packages/yum/plugins.py", line 188, in run
    func(conduitcls(self, self.base, conf, **kwargs))
  File "/usr/lib/yum-plugins/fastestmirror.py", line 197, in postreposetup_hook
    if downgrade_ftp and _len_non_ftp(repo.urls) == 1:
  File "/usr/lib/python2.7/site-packages/yum/yumRepo.py", line 871, in <lambda>
    urls = property(fget=lambda self: self._geturls(),
  File "/usr/lib/python2.7/site-packages/yum/yumRepo.py", line 868, in _geturls
    self._baseurlSetup()
  File "/usr/lib/python2.7/site-packages/yum/yumRepo.py", line 834, in _baseurlSetup
    self.check()
  File "/usr/lib/python2.7/site-packages/yum/yumRepo.py", line 554, in check
    'Cannot find a valid baseurl for repo: %s' % self.ui_id
RepoError: Cannot find a valid baseurl for repo: base/7/x86_64
2016-09-12 02:00:13 ERROR otopi.context context._executeMethod:151 Failed to execute stage 'Environment packages setup': Cannot find a valid baseurl for repo: base/7/x86_64
2016-09-12 02:00:13 DEBUG otopi.transaction transaction.abort:119 aborting 'Yum Transaction'
2016-09-12 02:00:13 INFO otopi.plugins.otopi.packagers.yumpackager yumpackager.info:80 Yum Performing yum transaction rollback
Could not retrieve mirrorlist http://mirrorlist.centos.org/?release=7&arch=x86_64&repo=os&infra=stock error was
14: curl#7 - "Failed to connect to 2604:1580:fe02:2::10: Network is unreachable"
Loaded plugins: fastestmirror
2016-09-12 02:00:13 DEBUG otopi.context context.dumpEnvironment:760 ENVIRONMENT DUMP - BEGIN
2016-09-12 02:00:13 DEBUG otopi.context context.dumpEnvironment:770 ENV BASE/error=bool:'True'
2016-09-12 02:00:13 DEBUG otopi.context context.dumpEnvironment:770 ENV BASE/exceptionInfo=list:'[(<class 'yum.Errors.RepoError'>, RepoError(), <traceback object at 0x7f7002252f80>)]'
2016-09-12 02:00:13 DEBUG otopi.context context.dumpEnvironment:774 ENVIRONMENT DUMP - END
...

He's trying to use ipv6 connection ??
But, I have not ipv6 networks and my hosts/engine used only ipv4 settings.

​Hmm, it seems to me that you don't have IPv6 disabled properly, as your DNS resolver returns you IPv6 addresses. Please take a look at:

https://wiki.centos.org/FAQ/CentOS7#head-8984faf811faccca74c7bcdd74de7467f2fcd8ee
 

12.09.2016, 15:45, "Martin Perina" <mperina@redhat.com>:
>> ​2016-09-12 02:00:13,388 INFO [org.ovirt.engine.core.bll.hostdeploy.VdsDeployBase] (VdsDeploy) [] Retrieving installation logs to: '/var/log/ovirt-engine/host-deploy/ovirt-host-mgmt-20160912020013-kom-ad01-vm31.holding.com-null.l$
>
> This is most probably the log file where details of the issue can be found
>
> On Mon, Sep 12, 2016 at 2:35 PM, Yedidyah Bar David <didi@redhat.com> wrote:
>> On Mon, Sep 12, 2016 at 3:08 PM,  <aleksey.maksimov@it-kb.ru> wrote:
>>>
>>> Excuse me. I do not understand. What I should do?
>>> The directory /var/log/ovirt-engine/host-deploy many different log files
>>
>> Please check the one from a time where you see this error.
>>
>> Every run of host-deploy creates its own log file.
>>
>> Best,
>>
>>>
>>> 12.09.2016, 14:59, "Yedidyah Bar David" <didi@redhat.com>:
>>>> On Mon, Sep 12, 2016 at 11:17 AM, <aleksey.maksimov@it-kb.ru> wrote:
>>>>>  # yum install iproute
>>>>>
>>>>>  Loaded plugins: fastestmirror
>>>>>  Loading mirror speeds from cached hostfile
>>>>>   * base: mirror.awanti.com
>>>>>   * elrepo: dfw.mirror.rackspace.com
>>>>>   * epel: epel.besthosting.ua
>>>>>   * extras: centos-mirror.rbc.ru
>>>>>   * ovirt-4.0: ftp.nluug.nl
>>>>>   * ovirt-4.0-epel: epel.besthosting.ua
>>>>>   * updates: centos-mirror.rbc.ru
>>>>>  Package iproute-3.10.0-54.el7_2.1.x86_64 already installed and latest version
>>>>>  Nothing to do
>>>>>
>>>>>  # ls -la /etc/yum.repos.d/
>>>>>
>>>>>  total 76
>>>>>  drwxr-xr-x. 2 root root 4096 Jul 26 14:08 .
>>>>>  drwxr-xr-x. 102 root root 12288 Sep 12 11:00 ..
>>>>>  -rw-r--r--. 1 root root 1664 Dec 9 2015 CentOS-Base.repo
>>>>>  -rw-r--r--. 1 root root 1309 Dec 9 2015 CentOS-CR.repo
>>>>>  -rw-r--r--. 1 root root 649 Dec 9 2015 CentOS-Debuginfo.repo
>>>>>  -rw-r--r--. 1 root root 290 Dec 9 2015 CentOS-fasttrack.repo
>>>>>  -rw-r--r--. 1 root root 630 Dec 9 2015 CentOS-Media.repo
>>>>>  -rw-r--r--. 1 root root 1331 Dec 9 2015 CentOS-Sources.repo
>>>>>  -rw-r--r--. 1 root root 1952 Dec 9 2015 CentOS-Vault.repo
>>>>>  -rw-r--r--. 1 root root 2150 May 21 2014 elrepo.repo
>>>>>  -rw-r--r--. 1 root root 957 Jun 3 16:52 epel.repo
>>>>>  -rw-r--r--. 1 root root 1056 Jun 3 16:52 epel-testing.repo
>>>>>  -rw-r--r--. 1 root root 383 Jul 21 10:44 HP-MCP.repo
>>>>>  -rw-r--r--. 1 root root 446 Jul 21 10:45 HP-SPP-2014-06.repo
>>>>>  -rw-r--r--. 1 root root 417 Jul 21 10:44 HP-SPP-Current.repo
>>>>>  -rw-r--r--. 1 root root 1678 Jul 26 14:08 ovirt-4.0-dependencies.repo
>>>>>  -rw-r--r--. 1 root root 289 Jul 26 14:08 ovirt-4.0.repo
>>>>>
>>>>>  Which repo file you are interested in?
>>>>
>>>> The one(s) that has in it '[base]'. Also, you might find more
>>>> details in the host-deploy log, in /var/log/ovirt-engine/host-deploy .
>>>>
>>>>>  12.09.2016, 11:14, "Yedidyah Bar David" <didi@redhat.com>:
>>>>>>  On Mon, Sep 12, 2016 at 10:59 AM, <aleksey.maksimov@it-kb.ru> wrote:
>>>>>>>   Hi, Martin.
>>>>>>>
>>>>>>>   The command is executed successfully:
>>>>>>>
>>>>>>>   Updated:
>>>>>>>     vdsm.x86_64 0:4.18.12-1.el7 vdsm-cli.noarch 0:4.18.12-1.el7
>>>>>>>   Dependency Updated:
>>>>>>>     vdsm-api.noarch 0:4.18.12-1.el7 vdsm-hook-vmfex-dev.noarch 0:4.18.12-1.el7 vdsm-infra.noarch 0:4.18.12-1.el7
>>>>>>>     vdsm-jsonrpc.noarch 0:4.18.12-1.el7 vdsm-python.noarch 0:4.18.12-1.el7 vdsm-xmlrpc.noarch 0:4.18.12-1.el7
>>>>>>>     vdsm-yajsonrpc.noarch 0:4.18.12-1.el7
>>>>>>>   Complete!
>>>>>>>
>>>>>>>   12.09.2016, 10:47, "Martin Perina" <mperina@redhat.com>:
>>>>>>>>   Hi Aleksey,
>>>>>>>>
>>>>>>>>   the error message is raised by Host upgrade manager (more info at [1]) which checks for available package upgrades on the host.
>>>>>>>>
>>>>>>>>   It seems that you have somehow corrupted repository configuration of the host 'kom-ad01-vm31.holding.com':
>>>>>>>>
>>>>>>>>   2016-09-12 02:00:13,300 ERROR [org.ovirt.engine.core.bll.hostdeploy.VdsDeployBase] (VdsDeploy) [] Yum Cannot queue package iproute: Cannot find a valid baseurl for repo: base/7/x86_64
>>>>>>>>   2016-09-12 02:00:13,304 ERROR [org.ovirt.engine.core.bll.hostdeploy.VdsDeployBase] (VdsDeploy) [] Failed to execute stage 'Environment packages setup': Cannot find a valid baseurl for repo: base/7/x86_64
>>>>>>>>
>>>>>>>>   Could you please verify that you are able to successfully execute following commands on the host?
>>>>>>>>
>>>>>>>>     yum check-update
>>>>>>>>     yum update vdsm vdsm-cli
>>>>>>
>>>>>>  Can you please try also:
>>>>>>
>>>>>>  yum install iproute
>>>>>>
>>>>>>  And also share your /etc/yum.repos.d/* ?
>>>>>>
>>>>>>  Thanks.
>>>>>>
>>>>>>>>   Thanks
>>>>>>>>
>>>>>>>>   Martin Perina
>>>>>>>>
>>>>>>>>   [1] http://www.ovirt.org/develop/release-management/features/engine/upgrademanager/
>>>>>>>>
>>>>>>>>   On Mon, Sep 12, 2016 at 9:20 AM, <aleksey.maksimov@it-kb.ru> wrote:
>>>>>>>>>   Hello oVirt guru`s!
>>>>>>>>>
>>>>>>>>>   oVirt Engine Version: 4.0.1.1-1.el7.centos
>>>>>>>>>
>>>>>>>>>   Every day there is a message in web UI for one of my two hosts:
>>>>>>>>>
>>>>>>>>>   "Failed to check for available updates on host KOM-AD01-VM31 with message 'Command returned failure code 1 during SSH session 'root@
>>>>>>>>>
>>>>>>>>>   kom-ad01-vm31.holding.com''.
>>>>>>>>>
>>>>>>>>>   In /var/log/ovirt-engine/engine.log at this time:
>>>>>>>>>
>>>>>>>>>   ...
>>>>>>>>>   2016-09-12 01:59:45,045 INFO [org.ovirt.engine.core.bll.hostdeploy.VdsDeployBase] (VdsDeploy) [] Stage: Initializing
>>>>>>>>>   2016-09-12 01:59:45,055 INFO [org.ovirt.engine.core.bll.hostdeploy.VdsDeployBase] (VdsDeploy) [] Stage: Environment setup
>>>>>>>>>   2016-09-12 01:59:45,070 INFO [org.ovirt.engine.core.bll.hostdeploy.VdsDeployBase] (VdsDeploy) [] Stage: Environment packages setup
>>>>>>>>>
>>>>>>>>>   2016-09-12 02:00:13,300 ERROR [org.ovirt.engine.core.bll.hostdeploy.VdsDeployBase] (VdsDeploy) [] Yum Cannot queue package iproute: Cannot find a valid baseurl for repo: base/7/x86_64
>>>>>>>>>   2016-09-12 02:00:13,304 ERROR [org.ovirt.engine.core.bll.hostdeploy.VdsDeployBase] (VdsDeploy) [] Failed to execute stage 'Environment packages setup': Cannot find a valid baseurl for repo: base/7/x86_64
>>>>>>>>>   2016-09-12 02:00:13,304 INFO [org.ovirt.engine.core.bll.hostdeploy.VdsDeployBase] (VdsDeploy) [] Yum Performing yum transaction rollback
>>>>>>>>>   2016-09-12 02:00:13,368 INFO [org.ovirt.engine.core.bll.hostdeploy.VdsDeployBase] (VdsDeploy) [] Stage: Pre-termination
>>>>>>>>>   2016-09-12 02:00:13,388 INFO [org.ovirt.engine.core.bll.hostdeploy.VdsDeployBase] (VdsDeploy) [] Retrieving installation logs to: '/var/log/ovirt-engine/host-deploy/ovirt-host-mgmt-20160912020013-kom-ad01-vm31.holding.com-null.l$
>>>>>>>>>   2016-09-12 02:00:13,459 INFO [org.ovirt.engine.core.bll.hostdeploy.VdsDeployBase] (VdsDeploy) [] Stage: Termination
>>>>>>>>>   2016-09-12 02:00:13,506 ERROR [org.ovirt.engine.core.uutils.ssh.SSHDialog] (DefaultQuartzScheduler5) [] SSH error running command root@kom-ad01-vm31.holding.com:'umask 0077; MYTMP="$(TMPDIR="${OVIRT_TMPDIR}" mktemp -d -t ovirt-XXXXXXXXXX)"; trap "chmod -R u+rwX \"${MYTMP}\" > /dev/null 2>&1; rm -fr \"${MYTMP}\" > /dev/null 2>&1" 0; tar --warning=no-timestamp -C "${MYTMP}" -x && "${MYTMP}"/ovirt-host-mgmt DIALOG/dialect=str:machine DIALOG/customization=bool:True': Command returned failure code 1 during SSH session 'root@kom-ad01-vm31.holding.com'
>>>>>>>>>
>>>>>>>>>   2016-09-12 02:00:13,506 ERROR [org.ovirt.engine.core.uutils.ssh.SSHDialog] (DefaultQuartzScheduler5) [] Exception: java.io.IOException: Command returned failure code 1 during SSH session 'root@kom-ad01-vm31.holding.com'
>>>>>>>>>           at org.ovirt.engine.core.uutils.ssh.SSHClient.executeCommand(SSHClient.java:526) [uutils.jar:]
>>>>>>>>>           at org.ovirt.engine.core.uutils.ssh.SSHDialog.executeCommand(SSHDialog.java:317) [uutils.jar:]
>>>>>>>>>           at org.ovirt.engine.core.bll.hostdeploy.VdsDeployBase.execute(VdsDeployBase.java:563) [bll.jar:]
>>>>>>>>>           at org.ovirt.engine.core.bll.host.HostUpgradeManager.isUpdateAvailable(HostUpgradeManager.java:44) [bll.jar:]
>>>>>>>>>           at org.ovirt.engine.core.bll.host.AvailableUpdatesFinder.isUpdateAvailable(AvailableUpdatesFinder.java:26) [bll.jar:]
>>>>>>>>>           at org.ovirt.engine.core.bll.VdsEventListener.isUpdateAvailable(VdsEventListener.java:553) [bll.jar:]
>>>>>>>>>           at org.ovirt.engine.core.vdsbroker.ResourceManager.isUpdateAvailable(ResourceManager.java:510) [vdsbroker.jar:]
>>>>>>>>>           at org.ovirt.engine.core.vdsbroker.VdsManager.availableUpdates(VdsManager.java:306) [vdsbroker.jar:]
>>>>>>>>>           at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) [rt.jar:1.8.0_101]
>>>>>>>>>           at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) [rt.jar:1.8.0_101]
>>>>>>>>>           at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) [rt.jar:1.8.0_101]
>>>>>>>>>           at java.lang.reflect.Method.invoke(Method.java:498) [rt.jar:1.8.0_101]
>>>>>>>>>           at org.ovirt.engine.core.utils.timer.JobWrapper.invokeMethod(JobWrapper.java:77) [scheduler.jar:]
>>>>>>>>>           at org.ovirt.engine.core.utils.timer.JobWrapper.execute(JobWrapper.java:51) [scheduler.jar:]
>>>>>>>>>           at org.quartz.core.JobRunShell.run(JobRunShell.java:213) [quartz.jar:]
>>>>>>>>>           at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) [rt.jar:1.8.0_101]
>>>>>>>>>           at java.util.concurrent.FutureTask.run(FutureTask.java:266) [rt.jar:1.8.0_101]
>>>>>>>>>           at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) [rt.jar:1.8.0_101]
>>>>>>>>>           at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) [rt.jar:1.8.0_101]
>>>>>>>>>           at java.lang.Thread.run(Thread.java:745) [rt.jar:1.8.0_101]
>>>>>>>>>
>>>>>>>>>   2016-09-12 02:00:13,507 ERROR [org.ovirt.engine.core.bll.hostdeploy.VdsDeployBase] (DefaultQuartzScheduler5) [] Error during host kom-ad01-vm31.holding.com install: java.io.IOException: Command returned failure code 1 during SSH session 'root@kom-ad01-vm31.holding.com'
>>>>>>>>>           at org.ovirt.engine.core.uutils.ssh.SSHClient.executeCommand(SSHClient.java:526) [uutils.jar:]
>>>>>>>>>           at org.ovirt.engine.core.uutils.ssh.SSHDialog.executeCommand(SSHDialog.java:317) [uutils.jar:]
>>>>>>>>>           at org.ovirt.engine.core.bll.hostdeploy.VdsDeployBase.execute(VdsDeployBase.java:563) [bll.jar:]
>>>>>>>>>           at org.ovirt.engine.core.bll.host.HostUpgradeManager.isUpdateAvailable(HostUpgradeManager.java:44) [bll.jar:]
>>>>>>>>>           at org.ovirt.engine.core.bll.host.AvailableUpdatesFinder.isUpdateAvailable(AvailableUpdatesFinder.java:26) [bll.jar:]
>>>>>>>>>           at org.ovirt.engine.core.bll.VdsEventListener.isUpdateAvailable(VdsEventListener.java:553) [bll.jar:]
>>>>>>>>>           at org.ovirt.engine.core.vdsbroker.ResourceManager.isUpdateAvailable(ResourceManager.java:510) [vdsbroker.jar:]
>>>>>>>>>           at org.ovirt.engine.core.vdsbroker.VdsManager.availableUpdates(VdsManager.java:306) [vdsbroker.jar:]
>>>>>>>>>           at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) [rt.jar:1.8.0_101]
>>>>>>>>>           at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) [rt.jar:1.8.0_101]
>>>>>>>>>           at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) [rt.jar:1.8.0_101]
>>>>>>>>>           at java.lang.reflect.Method.invoke(Method.java:498) [rt.jar:1.8.0_101]
>>>>>>>>>           at org.ovirt.engine.core.utils.timer.JobWrapper.invokeMethod(JobWrapper.java:77) [scheduler.jar:]
>>>>>>>>>           at org.ovirt.engine.core.utils.timer.JobWrapper.execute(JobWrapper.java:51) [scheduler.jar:]
>>>>>>>>>           at org.quartz.core.JobRunShell.run(JobRunShell.java:213) [quartz.jar:]
>>>>>>>>>           at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) [rt.jar:1.8.0_101]
>>>>>>>>>           at java.util.concurrent.FutureTask.run(FutureTask.java:266) [rt.jar:1.8.0_101]
>>>>>>>>>           at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) [rt.jar:1.8.0_101]
>>>>>>>>>           at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) [rt.jar:1.8.0_101]
>>>>>>>>>           at java.lang.Thread.run(Thread.java:745) [rt.jar:1.8.0_101]
>>>>>>>>>
>>>>>>>>>   2016-09-12 02:00:13,512 ERROR [org.ovirt.engine.core.bll.host.HostUpgradeManager] (DefaultQuartzScheduler5) [] Failed to refresh host 'KOM-AD01-VM31' packages 'vdsm-cli, vdsm' availability.
>>>>>>>>>   2016-09-12 02:00:13,512 ERROR [org.ovirt.engine.core.bll.host.HostUpgradeManager] (DefaultQuartzScheduler5) [] Exception: java.io.IOException: Command returned failure code 1 during SSH session 'root@kom-ad01-vm31.holding.com'
>>>>>>>>>           at org.ovirt.engine.core.uutils.ssh.SSHClient.executeCommand(SSHClient.java:526) [uutils.jar:]
>>>>>>>>>           at org.ovirt.engine.core.uutils.ssh.SSHDialog.executeCommand(SSHDialog.java:317) [uutils.jar:]
>>>>>>>>>           at org.ovirt.engine.core.bll.hostdeploy.VdsDeployBase.execute(VdsDeployBase.java:563) [bll.jar:]
>>>>>>>>>           at org.ovirt.engine.core.bll.host.HostUpgradeManager.isUpdateAvailable(HostUpgradeManager.java:44) [bll.jar:]
>>>>>>>>>           at org.ovirt.engine.core.bll.host.AvailableUpdatesFinder.isUpdateAvailable(AvailableUpdatesFinder.java:26) [bll.jar:]
>>>>>>>>>           at org.ovirt.engine.core.bll.VdsEventListener.isUpdateAvailable(VdsEventListener.java:553) [bll.jar:]
>>>>>>>>>           at org.ovirt.engine.core.vdsbroker.ResourceManager.isUpdateAvailable(ResourceManager.java:510) [vdsbroker.jar:]
>>>>>>>>>           at org.ovirt.engine.core.vdsbroker.VdsManager.availableUpdates(VdsManager.java:306) [vdsbroker.jar:]
>>>>>>>>>           at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) [rt.jar:1.8.0_101]
>>>>>>>>>           at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) [rt.jar:1.8.0_101]
>>>>>>>>>           at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) [rt.jar:1.8.0_101]
>>>>>>>>>           at java.lang.reflect.Method.invoke(Method.java:498) [rt.jar:1.8.0_101]
>>>>>>>>>           at org.ovirt.engine.core.utils.timer.JobWrapper.invokeMethod(JobWrapper.java:77) [scheduler.jar:]
>>>>>>>>>           at org.ovirt.engine.core.utils.timer.JobWrapper.execute(JobWrapper.java:51) [scheduler.jar:]
>>>>>>>>>           at org.quartz.core.JobRunShell.run(JobRunShell.java:213) [quartz.jar:]
>>>>>>>>>           at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) [rt.jar:1.8.0_101]
>>>>>>>>>           at java.util.concurrent.FutureTask.run(FutureTask.java:266) [rt.jar:1.8.0_101]
>>>>>>>>>           at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) [rt.jar:1.8.0_101]
>>>>>>>>>           at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) [rt.jar:1.8.0_101]
>>>>>>>>>           at java.lang.Thread.run(Thread.java:745) [rt.jar:1.8.0_101]
>>>>>>>>>
>>>>>>>>>   2016-09-12 02:00:13,513 ERROR [org.ovirt.engine.core.vdsbroker.VdsManager] (DefaultQuartzScheduler5) [] Failed to check if updates are available for host 'KOM-AD01-VM31'
>>>>>>>>>   2016-09-12 02:00:13,518 ERROR [org.ovirt.engine.core.dal.dbbroker.auditloghandling.AuditLogDirector] (DefaultQuartzScheduler5) [] Correlation ID: null, Call Stack: null, Custom Event ID: -1, Message: Failed to check for available updates on host KOM-AD01-VM31 with message 'Command returned failure code 1 during SSH session 'root@kom-ad01-vm31.holding.com''.
>>>>>>>>>
>>>>>>>>>   ...
>>>>>>>>>
>>>>>>>>>   What could be the problem?
>>>>>>>>>   _______________________________________________
>>>>>>>>>   Users mailing list
>>>>>>>>>   Users@ovirt.org
>>>>>>>>>   http://lists.ovirt.org/mailman/listinfo/users
>>>>>>>   _______________________________________________
>>>>>>>   Users mailing list
>>>>>>>   Users@ovirt.org
>>>>>>>   http://lists.ovirt.org/mailman/listinfo/users
>>>>>>
>>>>>>  --
>>>>>>  Didi
>>>>
>>>> --
>>>> Didi
>>
>> --
>> Didi