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Question: Why is my study stuck in the 'Processing' status hours after I deployed it?
Topic: caIntegrator usage
Release: all versions
Date entered: 2/22/2012
Details About the Question
When you deploy a study, you may find its status showing as 'Processing' on the 'Manage Studies' page hours or even days later (see screenshot below). The status may remain stuck like this indefinitely regardless of how fast your caIntegrator server is.
Answer
The most common cause of this problem is an out of memory error caused by a limitation in the size of the heap on the JBoss server running caIntegrator. If a study deployment fails due to this error, caIntegrator does not notify the user and instead logs the error in the server.log file located at the following Windows path:
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The recommended heap size varies greatly depending on the size of your dataset and the amount of available physical memory on your caIntegrator server. For reference, in a dataset containing 500 Affymetrix CEL files that are approximately 16GB in combined size, the minimum heap size required for the study deployment to complete successfully is 15 GB.
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