[jboss-jira] [JBoss JIRA] Commented: (JGRP-837) Add failure simulation capabilities to Simulator
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https://jira.jboss.org/jira/browse/JGRP-837?page=com.atlassian.jira.plugi...
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Richard Achmatowicz commented on JGRP-837:
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Only had one problem in writing this test case.
The NAKACK header does not provide public methods for inspecting the elements of the
header, which seems to be necessary in order to be able to set up drop functions to drop
specific messages based on header contents. I had to modify the NakAckHeader class to
allow this to happen in order to write the test.
Add failure simulation capabilities to Simulator
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Key: JGRP-837
URL: https://jira.jboss.org/jira/browse/JGRP-837
Project: JGroups
Issue Type: Feature Request
Reporter: Richard Achmatowicz
Assignee: Richard Achmatowicz
Priority: Minor
The Simulator can be used to test protocol layers in isolation. Multiple Simulator
instances can be configured so that they model a multicast group.
In its present state, messages are transported from one Simulator instance to another by
the send_thread, which moves messages from send_queue to recv_queue in a reliable fashion.
Futhermore, all Simulators perform at the same speed. I'd like to use the Simulator
to additionally simulate failures, in order to check the robustness of the protocols. In
particular, i'd like to model:
* dropped, reordered, corrupted messages
* failed processors ('crash' failure)
* network partitions
* slow processes
This JIRA issue will track progress on this and allow for discussion.
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