[jboss-jira] [JBoss JIRA] Commented: (JGRP-718) Transport: limit number of bytes read
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https://jira.jboss.org/jira/browse/JGRP-718?page=com.atlassian.jira.plugi...
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Vladimir Blagojevic commented on JGRP-718:
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Message is read from stream passed to a Message object. I assume
discard_messages_larger_than flag is a property of TP? How can we use
discard_messages_larger_than flag from within a Message object? Maybe we can make this
flag a JVM property?
Transport: limit number of bytes read
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Key: JGRP-718
URL: https://jira.jboss.org/jira/browse/JGRP-718
Project: JGroups
Issue Type: Feature Request
Reporter: Bela Ban
Assignee: Vladimir Blagojevic
Priority: Minor
Fix For: 2.7
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.
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