[ovirt-users] WebAdmin is down, HostedEngine is up

[Alexander Wels]

On Monday, March 20, 2017 9:14:51 AM EDT Logan Kuhn wrote:
> Starting at 1:09am on Saturday the Hosted Engine has been rebooting because
> it failed it's liveliness check.  This is due to the webadmin not loading.
> Nothing changed as far as I can tell on the engine since it's last
> successful reboot on Friday afternoon.
> 
> The engine, dwhd and httpd are all up and do not seem to be reporting
> anything unusual in their respective logs.  The engine can talk to the
> database as I can login using the credentials in /etc/ovirt-engine/engine.co
> nf.d/10-setup-database.conf and the logs on the postgres server are showing
> activity.
> 
> I tried to run engine-setup but it says it's not in global maintenance even
> though the hosted engine hosts agree that it is.  We are on version 4.0.6.3
> 
> Server, engine and agent logs are attached
> 
> Regards,
> Logan

Looking at our logs, it appears that on Friday one of your hosts ran out of 
disk space in its logs or temp directory. At which point connectivity started 
to be spotty. I see a bunch of attempts to migrate VMs away from that host 
(ovirttest1). All of them fail. That repeats a ton of times, I forwarded to 
Saturday where it appears you had a bunch of stale locks which also repeates a 
bunch of time until the engine VM gets restarted.

Then I see nothing but restarts of the engine and no apparent errors in the 
engine log.

The server log does however reveal this:
2017-03-20 07:04:27,282 ERROR [org.quartz.core.ErrorLogger] 
(QuartzOvirtDBScheduler_QuartzSchedulerThread) An error occurred while 
scanning for the next triggers to fire.: org.quartz.JobPersistenceException: 
Failed to obtain DB connection from data source 'NMEngineDS': 
java.sql.SQLException: Could not retrieve datasource via JNDI url 'java:/
ENGINEDataSourceNoJTA' java.sql.SQLException: 
javax.resource.ResourceException: IJ000470: You are trying to use a connection 
factory that has been shut down: java:/ENGINEDataSourceNoJTA [See nested 
exception: java.sql.SQLException: Could not retrieve datasource via JNDI url 
'java:/ENGINEDataSourceNoJTA' java.sql.SQLException: 
javax.resource.ResourceException: IJ000470: You are trying to use a connection 
factory that has been shut down: java:/ENGINEDataSourceNoJTA]
	at 
org.quartz.impl.jdbcjobstore.JobStoreCMT.getNonManagedTXConnection(JobStoreCMT.java:
168) [quartz.jar:]
	at 
org.quartz.impl.jdbcjobstore.JobStoreSupport.executeInNonManagedTXLock(JobStoreSupport.java:
3807) [quartz.jar:]
	at 
org.quartz.impl.jdbcjobstore.JobStoreSupport.acquireNextTriggers(JobStoreSupport.java:
2751) [quartz.jar:]
	at org.quartz.core.QuartzSchedulerThread.run(QuartzSchedulerThread.java:
264) [quartz.jar:]
Caused by: java.sql.SQLException: Could not retrieve datasource via JNDI url 
'java:/ENGINEDataSourceNoJTA' java.sql.SQLException: 
javax.resource.ResourceException: IJ000470: You are trying to use a connection 
factory that has been shut down: java:/ENGINEDataSourceNoJTA
	at 
org.quartz.utils.JNDIConnectionProvider.getConnection(JNDIConnectionProvider.java:
163) [quartz.jar:]
	at 
org.quartz.utils.DBConnectionManager.getConnection(DBConnectionManager.java:
108) [quartz.jar:]
	at 
org.quartz.impl.jdbcjobstore.JobStoreCMT.getNonManagedTXConnection(JobStoreCMT.java:
165) [quartz.jar:]
	... 3 more

Is your postgresql service running? That is the most likely source of the 
engine not coming up.