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Posted to commits@cassandra.apache.org by "Philip Thompson (JIRA)" <ji...@apache.org> on 2014/06/05 00:57:02 UTC

[jira] [Created] (CASSANDRA-7353) Java heap being set too large on Windows with 32-bit JVM

Philip Thompson created CASSANDRA-7353:
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             Summary: Java heap being set too large on Windows with 32-bit JVM
                 Key: CASSANDRA-7353
                 URL: https://issues.apache.org/jira/browse/CASSANDRA-7353
             Project: Cassandra
          Issue Type: Bug
         Environment: Windows Server 2008, 8G RAM, 32-bit JVM
            Reporter: Philip Thompson
            Assignee: Joshua McKenzie
            Priority: Minor


On windows, the JVM settings for max heap size and new gen heap size are set based on the total system memory. When the system has 8G of RAM, the max heap size is set to 2048M. However, according to http://goo.gl/1ElbLm, the recommended max heap for a 32 bit JVM on Windows is 1.8G.

When cassandra is started on Windows under these conditions, the following error is seen:

Error occurred during initialization of VM
Could not reserve enough space for object heap
Error: Could not create the Java Virtual Machine.
Error: A fatal exception has occurred. Program will exit.



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