Bug 1312717 - Can not migrate virtual machine from host A to host B with error message.( Error: Could not connect to peer host)
Can not migrate virtual machine from host A to host B with error message.( Er...
Product: Red Hat Enterprise Virtualization Manager
Classification: Red Hat
Component: ovirt-engine (Show other bugs)
Unspecified Unspecified
high Severity high
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Assigned To: nobody nobody
Depends On:
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Reported: 2016-02-28 22:46 EST by Yoshinori Takahashi
Modified: 2016-03-09 03:17 EST (History)
8 users (show)

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Fixed In Version:
Doc Type: Bug Fix
Doc Text:
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Last Closed: 2016-03-09 03:17:34 EST
Type: Bug
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oVirt Team: Virt
RHEL 7.3 requirements from Atomic Host:
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Comment 1 Yaniv Kaul 2016-02-29 02:15:08 EST
Please attach logs. Engine as well as VDSM logs from both source and destination.

I assume you've looked into possible DNS issues (for example, the destination having multiple records in DNS, some which are wrong), firewall, routing, etc.
Comment 3 Tomas Jelinek 2016-03-07 04:30:17 EST
I see couple of "java.net.NoRouteToHostException: No route to host" and "Caused by: java.rmi.ConnectException: Connection timeout" in the logs which looks like some network issues.

Can you please make sure the connection between the two hosts is indeed working when trying to migrate?
Comment 7 Tomas Jelinek 2016-03-09 03:17:34 EST
yes, something like:
telnet hostB <port>

e.g. with default port:
telnet hostB 54321

The particular port you can find in vdsm.conf as management_port.

So, closing this BZ as "not a bug", since it seems it was a networking issue.
In case it will start happening again and the networking would be OK, please feel free to reopen.

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