[jboss-jira] [JBoss JIRA] (JGRP-718) Transport: limit number of bytes read

[Bela Ban (JIRA)]

     [ https://issues.jboss.org/browse/JGRP-718?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Bela Ban updated JGRP-718:
--------------------------
    Fix Version/s: 3.6.8
                       (was: Future)


We also send a cookie, plus the length, so unless both match, the mesage won't ever be read and will be discarded right away. If it does match, then an OOME will ensure, will causes the msg to be discarded as well, and the next message will be read (or the conn closed).

> Transport: limit number of bytes read
> -------------------------------------
>
>                 Key: JGRP-718
>                 URL: https://issues.jboss.org/browse/JGRP-718
>             Project: JGroups
>          Issue Type: Feature Request
>            Reporter: Bela Ban
>            Assignee: Vladimir Blagojevic
>            Priority: Minor
>             Fix For: 3.6.8
>
>
> In the transport, each message is prefixed with its length. If, on the receiver side, we receive garbage data (e.g. a random app connects to the same port), then JGroups tries to interpret the first 4 bytes as length, and this might be quite huge (1.6GB in one instance).
> If we know that our packets are never larger than 200'000 bytes, then we can set a flag discard_messages_larger_than="200000". If the flag is 0, no messages will be discarded.



--
This message was sent by Atlassian JIRA
(v6.4.11#64026)