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Posted to derby-dev@db.apache.org by "Rajesh Kartha (JIRA)" <de...@db.apache.org> on 2005/11/15 20:38:29 UTC
[jira] Resolved: (DERBY-676) OutOfMemoryError in Network Server while performing operations using one of the two Statement objects created from a Connection object
[ http://issues.apache.org/jira/browse/DERBY-676?page=all ]
Rajesh Kartha resolved DERBY-676:
---------------------------------
Resolution: Duplicate
Duplicate of DERBY-210
> OutOfMemoryError in Network Server while performing operations using one of the two Statement objects created from a Connection object
> --------------------------------------------------------------------------------------------------------------------------------------
>
> Key: DERBY-676
> URL: http://issues.apache.org/jira/browse/DERBY-676
> Project: Derby
> Type: Bug
> Components: Network Server
> Versions: 10.0.2.1, 10.1.1.0, 10.2.0.0, 10.1.1.1
> Environment: Windows 2000
> Reporter: Rajesh Kartha
> Attachments: JdbcTask.java, ReproTest.java
>
> The NetworkServer throws an OutOfMemoryError if there exists two Statement objects from a Connection object, but only one of them is being actively used
> for insert/select operations. I noticed 100% CPU usage and the memory usage of Network Server JVM steadily growing, so suspect a memory leak.
> The attached test reproduces it. With the default setting of maz heap size the Exception ocurs in about 12-15 mins during the 'select' operation. By setting the max heap size -Xmx for the Network Server JVM to a smaller value the error happnes much earlier.
> The test is very simple and uses plain Statement objects, which get closed after every insert/select. I tried the same test in the Embedded mode and did not see any errors.
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