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Posted to dev@velocity.apache.org by "Will Glass-Husain (JIRA)" <ji...@apache.org> on 2005/09/18 23:36:54 UTC
[jira] Commented: (VELOCITY-203) No upper limit on cached file handles causes random ResourceLoader exceptions
[ http://issues.apache.org/jira/browse/VELOCITY-203?page=comments#action_12329723 ]
Will Glass-Husain commented on VELOCITY-203:
--------------------------------------------
Responding to this old bug. If you or someone else wants to write a patch, I'll commit it. Even a self-contained test case would be helpful. Thanks.
> No upper limit on cached file handles causes random ResourceLoader exceptions
> -----------------------------------------------------------------------------
>
> Key: VELOCITY-203
> URL: http://issues.apache.org/jira/browse/VELOCITY-203
> Project: Velocity
> Type: Bug
> Components: Texen
> Versions: 1.0-Release
> Environment: Operating System: other
> Platform: Other
> Reporter: Ian Ragsdale
> Assignee: Velocity-Dev List
>
> The Generator class caches filehandles while generating files. There is no
> upper limit on the number of filehandles it will cache, so when generating many
> files with the same generator, it eventually hits the per-process limits on the
> number of open files. This then causes failures in the resource loader because
> it cannot open any more files. I've seen this problem on OS X and Linux, but it
> should be a pretty universal problem.
> You can work around this problem by increasing the number of filehandles
> available to the ant task, but that isn't always easy to do when running it as a
> subtask from an IDE, and it should be fairly simple to implement a basic LRU scheme.
> An alternative fix would be to more accurately report the error - the current
> implementation just throws a ResourceNotFound exception, making it very hard to
> track down the root cause of the error.
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