[JBoss JIRA] Created: (JBAS-4455) LoadBalancePolicy that tries to pin all requests associated with a tx to one server
by Brian Stansberry (JIRA)
LoadBalancePolicy that tries to pin all requests associated with a tx to one server
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Key: JBAS-4455
URL: http://jira.jboss.com/jira/browse/JBAS-4455
Project: JBoss Application Server
Issue Type: Feature Request
Security Level: Public (Everyone can see)
Components: Clustering
Reporter: Brian Stansberry
Assigned To: Galder Zamarreno
Priority: Minor
The HA proxies don't allow failover once a tx has reached a server. This can lead to this kind of situation:
EJB A deployed on nodes 1 and 2.
EJB B deployed on nodes 1 and 2.
1) Start tx, invoke on A.1.
2) Lookup B.
3) Invoke on B. LB policy picks B.2
4) Node 2 is dead for some reason so call fails.
5) Can't fail over because tx context won't allow a failover after a call has reached a server.
But, B.1 is fine and is running on the only node the tx has invoked on. :(
Approach to improving this. This is based on JRMPInovkerProxyHA methods, but the idea is generic:
In invocationHasReachedAServer, instead of storing null as the value, you store the target (key is the tx).
In invoke, if there's a tx, you add that target (if there is one) to the invocation as transient metadata
The LB policy gets passed the invocation as an arg when it chooses a target (this is already in the API)
LB policy checks for the metadata. If there, and that target is in its target list, return that target
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18 years, 6 months
[JBoss JIRA] Created: (JBBUILD-324) Build.xml in testsuite directory doesn't support multiple JVM argument
by Sunny Chan (JIRA)
Build.xml in testsuite directory doesn't support multiple JVM argument
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Key: JBBUILD-324
URL: http://jira.jboss.com/jira/browse/JBBUILD-324
Project: JBoss Build System
Issue Type: Feature Request
Components: Targets and Tasks
Affects Versions: Repository Build head, Repsository Build Branch_4_0
Environment: Any
Reporter: Sunny Chan
Priority: Minor
We are using the JBoss unit test as part of our JVM verification testsuite. We wanted to be able to invoke tests with multiple JVM options, but it didn't work. If you set parameters via build.sh -Djunit.vm.options with multiple paramters (e.g. -Djunit.vm.options="-d64 -verbose:gc"), it will fail with unrecongized option error.
The problem is that in testsuite/build.xml, the junit.vm.options is passed onto junit ant task via <jvmarg value> tag rather then <jvmarg line> tag. The jvmarg line allows multiple JVM options exist in one line. Once I replace all instance of <jvmarg value="${junit.jvm.options}"/> with <jvmarg line="${junit.jvm.options}"/> then the problem goes away.
I can provide a patch for this if you want - but I don't know the rules on patches (whether I need to be cleared for contribution) so let me know if you want that.
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18 years, 6 months