Resin Documentation

resin 4.0.19 release notes

4.0.19 is primarily a bug fix release, including several important fixes in the networking code for timeouts.

Thanks to everyone who reported bugs in 4.0.18. We encourage people to report 4.0.19 bugs at http://bugs.caucho.com.

Resin Eclipse Plugin is updated to publish and reload applications instantly. These settings can be overridden in the Properties dialog (press F3 on the selected server).
Fixed bugs: http://bugs.caucho.com/view.php?id=4589.

Resin Eclispe Snapshot and Release update sites are:

• Eclipse Plugin Release Update Site
• Eclipse Plugin Snapshot Update Site

• All style and content was updated to pass W3C HTML validation and follow W3C accessibility guidelines.
• The Web Applications page was updated to include an option to undeploy an application.
• Graphs now allow pan and zoom.

In addition a few new health conditions and actions, all applicable command line actions are now also available as health actions.

• <health:IfNotRecent> - Condition that throttles actions to execute no more than once per period.
• <health:ActionSequence> - An action that executes a series of child actions in sequence.
• <health:FailSafeRestart> - Initiates a delayed guaranteed restart of Resin.
• <health:StartProfiler> - Starts a performance profiling session.
• <health:CallJmxOperation> - Calls a JMX MBean operation.
• <health:SetJmxAttribute> - Sets a JMX MBean attribute.

The new actions and predicates can be combined to initiate an intelligent diagnostic gathering restart sequence. In the following example, upon detecting a critical health condition, Resin registers a 10 minute delayed fail-safe restart, dumps diagnostic information, and then profiles the system for 5 minutes. Finally it attempts to restart cleanly, although if that is not possible due to system instability, the earlier fail-safe restart will trigger.

<cluster xmlns="http://caucho.com/ns/resin"
         xmlns:resin="urn:java:com.caucho.resin"
         xmlns:health="urn:java:com.caucho.health"
         xmlns:ee="urn:java:ee">
         
  <health:ActionSequence>
    <health:FailSafeRestart timeout="10m"/>
    <health:DumpThreads/>
    <health:DumpHeap/>
    <health:StartProfiler active-time="5m"/>
    <health:Restart/>
    <health:IfHealthCritical time="5m"/>
    <health:IfNotRecent time="10m"/>
  </health:ActionSequence>

</cluster>