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Posted to dev@uima.apache.org by "Adam Lally (JIRA)" <ui...@incubator.apache.org> on 2010/01/08 23:51:54 UTC
[jira] Created: (UIMA-1722) CDE is very slow to open an aggregate
containing a remote UIMA-AS component
CDE is very slow to open an aggregate containing a remote UIMA-AS component
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Key: UIMA-1722
URL: https://issues.apache.org/jira/browse/UIMA-1722
Project: UIMA
Issue Type: Improvement
Components: Async Scaleout, Eclipse plugins
Affects Versions: 2.3
Reporter: Adam Lally
I have an aggregate containing 3 remote UIMA-AS components. It takes about a minute (maybe more) to open this in the CDE, which makes it very cumbersome to use.
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[jira] Commented: (UIMA-1722) CDE is very slow to open an aggregate
containing a remote UIMA-AS component
Posted by "Marshall Schor (JIRA)" <ui...@incubator.apache.org>.
[ https://issues.apache.org/jira/browse/UIMA-1722?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12798728#action_12798728 ]
Marshall Schor commented on UIMA-1722:
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I've prototyped a fix for this, and will attend to it after the 2.3.0 release is done. There are 2 parts to the fix.
# change the CDE so that when it creates Resource Managers and sets their class loaders, that it reuses the exact same class loader as before (unless, of course, there was some change in the user's build path for the project). This will prevent multiple "loading" of classes (existing ones will be re-used) due to switching classloaders. \\ \\
Use-case reminder: Custom Resource Specifiers, which are specifying the inclusion of uima-as because they're being used for uima-as remote services. \\ \\
The class loader should be cached using a Java soft reference, so it can eventually be cleaned up as space is needed (if it is not being used). \\ \\
# change the CasCreationUtils utility method which gets the metadata for a descriptor or collection of these (getMetaDataList) to cache its results and re-use that if:
** the arguments are such that the same result would be returned (except for a remote AE becoming available or not)
** if the previous try at getting metadata partially failed due to some remote not responding, use the cache only for a short time (say 30 seconds); after that, try again to see if the remote has become available
> CDE is very slow to open an aggregate containing a remote UIMA-AS component
> ---------------------------------------------------------------------------
>
> Key: UIMA-1722
> URL: https://issues.apache.org/jira/browse/UIMA-1722
> Project: UIMA
> Issue Type: Improvement
> Components: Async Scaleout, Eclipse plugins
> Affects Versions: 2.3
> Reporter: Adam Lally
>
> I have an aggregate containing 3 remote UIMA-AS components. It takes about a minute (maybe more) to open this in the CDE, which makes it very cumbersome to use.
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