[jboss-jira] [JBoss JIRA] Commented: (JGRP-1283) reproducing outofmemoryerror
Bela Ban (JIRA)
jira-events at lists.jboss.org
Fri Feb 11 08:52:47 EST 2011
[ https://issues.jboss.org/browse/JGRP-1283?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12581695#comment-12581695 ]
Bela Ban commented on JGRP-1283:
--------------------------------
OK, here's one issue that can happen with a CTRL-Z:
- A and B
- B's credits for A are exhausted (or close to exhausted) when it is CTRL-Z'ed
- A removes B and installs view {A}
- B is fg'ed
- A includes B again in view {A,B}. However, the credits for B are now the max credits !
- B asks A for credits, but A won't send credits as it thinks B still has all credits !
This is the result of the assumption that a sender's a receiver's credits are always more or less the same. Stopping a process with CTRL-Z changes this.
SOLUTION: when A gets a credit request from B for N credits, send the full N credits back to B, instead of MAX_CREDITS minus <what A thinks B's credits are>.
> reproducing outofmemoryerror
> ----------------------------
>
> Key: JGRP-1283
> URL: https://issues.jboss.org/browse/JGRP-1283
> Project: JGroups
> Issue Type: Bug
> Reporter: ronald yang
> Assignee: Bela Ban
> Priority: Minor
> Fix For: 2.12
>
> Attachments: Follower.java, Leader.java, Leader.java, oome.tgz, oome.tgz, tcp-nio.xml
>
>
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