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https://issues.apache.org/jira/browse/GEODE-2290?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Kirk Lund updated GEODE-2290:
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Labels: ClassLoader DeployCommand deploy gfsh (was: )
> Provide way to limit scanning of deployed jars
> ----------------------------------------------
>
> Key: GEODE-2290
> URL: https://issues.apache.org/jira/browse/GEODE-2290
> Project: Geode
> Issue Type: Improvement
> Components: gfsh, management
> Reporter: Kirk Lund
> Labels: ClassLoader, DeployCommand, deploy, gfsh
>
> Currently if you use the GFSH command "deploy jar" the deployed jar will be
> scanned in such a way that the deployer will load and resolve every .class
> file in the jar file. The original intention of "deploy jar" was that only
> Functions would be deployed. Any .class that is found to be a Function is
> automatically registered with the FunctionService.
> You can also include implementations of other Apache Geode callbacks such as
> CacheListener. If you then follow up the deploy with "alter region" you can
> alter the region to add the CacheListener or other callback.
> Some users have reported trying to deploy a jar with much more than just
> Functions or CacheListeners or domain classes used for Region Entries. If the
> jar includes a class that the callbacks or domain classes don't directly use
> but that class requires a missing transitive dependency, then the deployer
> will generate a NoClassDefFoundError when it tries to load and resolve that
> class.
> Along with the potential NoClassDefFoundError, forcing every .class to be
> loaded and resolved can consume a lot of PermGen memory.
> Various ideas have been tossed around to allow someone to deploy such a jar
> without having the deployer generate NoClassDefFoundError. This requires
> something like one of the following approaches:
> 1) add a new --do-not-deploy option flag
> 2) comma-delimited list of classes to load and deploy
> 3) regex list of classes to load and deploy
> 4) have I missed something?
> This would give the User better control over which classes to actually load
> and resolve.
> [NOTE: I'll update this ticket based on feedback and discussion on
> dev@geode.apache.org]
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