Re: Polling Lock Issues in 20.0.1 (With Minions)

Hi Josh,

On 07/25/2017 07:55 AM, Joshua McAdam wrote:
> org.opennms.netmgt.poller.pollables.LockUnavailable: Unable to obtain lock for PollableNode [65] within 500 milliseconds

These messages may look scary but they are only informational and are not indicative of any problems:
   When executing a poll (a monitor) the poller daemon will lock the node, ensuring that only one poll is active against
a node
   at any given time. If additional polls are scheduled while the lock is held, you will see messages like the one you
shared, and the
   associated poll will be rescheduled at some time in the near future.

To troubleshoot your problem further, I would try executing the monitors manually via the Karaf shell and validating
that these give the expected results:
   $ ssh -p 8101 admin@localhost
   admin@opennms> poller:poll -l HQ org.opennms.netmgt.poller.monitors.SshMonitor 127.0.0.1 port=8201

These polls will be triggered irrespective of any locks held by the poller and will allow you to verify that all Minion
related plumbing is working properly.

-Jesse



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