[jboss-jira] [JBoss JIRA] (JGRP-1912) LockService can fail under heavy load

[Bela Ban (JIRA)]

    [ https://issues.jboss.org/browse/JGRP-1912?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13040879#comment-13040879 ] 

Bela Ban commented on JGRP-1912:
--------------------------------

Item range=2 and lock-duration=0 works for me.

What exactly do you see as a failure ? Not being able to acquire a lock ? That's entirely possible as the lock queue of the server might become filled, so tryLock() requests take longer than 2s.

> LockService can fail under heavy load
> -------------------------------------
>
>                 Key: JGRP-1912
>                 URL: https://issues.jboss.org/browse/JGRP-1912
>             Project: JGroups
>          Issue Type: Bug
>    Affects Versions: 3.6.1
>         Environment: both windows 8.1 and RHEL
> java 1.7.0_75
>            Reporter: Chris Gentile
>            Assignee: Bela Ban
>             Fix For: 3.6.2
>
>         Attachments: LockServiceTestClient.java
>
>
> Once in awhile, the LockService will get stuck acquiring a lock.
> These seems to occur most often when two threads are simultaneously trying to acquire the same lock. (i.e.:  exact same millisecond on a server with multiple processors).



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