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From "Christopher Tubbs (JIRA)" <>
Subject [jira] [Commented] (ACCUMULO-4828) Initialization of master deadlocks
Date Mon, 26 Feb 2018 21:57:00 GMT


Christopher Tubbs commented on ACCUMULO-4828:

Commons-vfs2 is up to version 2.2 now, with some bugfixes. It requires Java 7, but we already
require that, so I'm doing a build in Jenkins now with that version to see if it fixes my
own issues with the ITs. Maybe it will magically fix the reported issue also.

> Initialization of master deadlocks
> ----------------------------------
>                 Key: ACCUMULO-4828
>                 URL:
>             Project: Accumulo
>          Issue Type: Bug
>            Reporter: Josh Elser
>            Assignee: Josh Elser
>            Priority: Critical
>             Fix For: 2.0.0
>         Attachments: stuck-master-jstack.txt
> See the attached jstack. It appears that thread trying to watch ZK for the location of
the monitor is blocking the instantiation of the Master because of some VFS call which is
never completing.
> I think we have two threads taking overlapping locks.

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