Hello. 

ZERO) https://bugzilla.redhat.com/enter_bug.cgi?product=ovirt
Sorry, entering a bug into the product oVirt has been disabled

And lets go.

A) If host with ovirt have iscsi target we will have bug troubles.

Its looks like
1. Create targetcli from LVM
2. All ok
3. Reboot
4/ LVM found oVIrt partitions and connect it.
5. targetcli can't get device. It's allready busy.

If you add some filter to don's search iscsi devices then ovirt does not work correctly.

B) Some throuble with glusterD. VSDM do mount of hosted engine volume and this host is aslo GluserD Server. Bug troubles. 

C) If i reboot 1 of 3 gluster servers then hosted engine will very slowly. Have many errors in dmes, Agent-ha reboot VM. Vm can't conect to don't full cluster and stuck in Paused mode. Realy... 

Its all look so bad... i mirgrate to NFS :(

D) Network conffugurate realy bad. If i need to change network i can't do it. oVirt save posted from web settings. Bug vsdm-networking MUST fallback to previos setup if i mistake or SERVIS does not start.

E). Ovirt reports does not install. 

     [java] org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'actionModelService' defined in file [/usr/share/jasperreports-server/buildomatic/conf_source/ieCe/applicationContext.xml]: Invocation of init method failed; nested exception is java.lang.ExceptionInInitializerError

2016-02-28 09:20:59 DEBUG otopi.plugins.ovirt_engine_setup.ovirt_engine_reports.jasper.deploy plugin.execute:941 execute-output: ('./js-ant', '-DmasterPropsSource=/tmp/tmp3paFhC/config', 'import-minimal-ce') stderr:
OpenJDK 64-Bit Server VM warning: ignoring option MaxPermSize=512m; support was removed in 8.0

BUILD FAILED
/usr/share/jasperreports-server/buildomatic/bin/import-export.xml:263: The following error occurred while executing this line:
/usr/share/jasperreports-server/buildomatic/bin/import-export.xml:142: Java returned: 255

Total time: 24 seconds

2016-02-28 09:20:59 DEBUG otopi.context context._executeMethod:156 method exception
Traceback (most recent call last):
  File "/usr/lib/python2.7/site-packages/otopi/context.py", line 146, in _executeMethod
    method['method']()
  File "/usr/share/ovirt-engine/setup/bin/../plugins/ovirt-engine-setup/ovirt-engine-reports/jasper/deploy.py", line 656, in _deploy
    self._buildJs(config=config, cmd=cmd)
  File "/usr/share/ovirt-engine/setup/bin/../plugins/ovirt-engine-setup/ovirt-engine-reports/jasper/deploy.py", line 215, in _buildJs
    'buildomatic',
  File "/usr/lib/python2.7/site-packages/otopi/plugin.py", line 946, in execute
    command=args[0],
RuntimeError: Command './js-ant' failed to execute
2016-02-28 09:20:59 ERROR otopi.context context._executeMethod:165 Failed to execute stage 'Misc configuration': Command './js-ant' failed to execute
2016-02-28 09:20:59 DEBUG otopi.transaction transaction.abort:134 aborting 'Yum Transaction'
2016-02-28 09:20:59 INFO otopi.plugins.otopi.packagers.yumpackager yumpackager.info:95 Yum Performing yum transaction rollback
Загружены модули: fastestmirror, versionlock





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С уважением, 
Бадалян Вячеслав Борисович

ООО "Открытые бизнес-решения"
Технический директор
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http://www.open-bs.ru