client side OutOfMemoryError running derbnetclientmats:jdbcapi/derbyStress
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Key: DERBY-4200
URL: https://issues.apache.org/jira/browse/DERBY-4200
Project: Derby
Issue Type: Bug
Components: Network Client
Affects Versions: 10.5.1.2
Environment: java version "1.5.0"
Java(TM) 2 Runtime Environment, Standard Edition (build pxi32devifx-20070806
(SR5a))
IBM J9 VM (build 2.3, J2RE 1.5.0 IBM J9 2.3 Linux x86-32 j9vmxi3223-20070426
(JIT enabled)
J9VM - 20070420_12448_lHdSMR
JIT - 20070419_1806_r8
GC - 200704_19)
JCL - 20070725
SUSE linux running on vmware.
Reporter: Kathey Marsden
On the nightly run for 4/27 - 10.5.1.2 - (769232), I saw client
jdbcapi/derbystress.java run out of heap space. The test has not failed like
this before on the same machine with the same JVM, and the one checkin on that
day DERBY-3991 could not account for this failure.
I will attach the javacore and heapdump. Taking a quick look at the heap dump,
it seems to have a lot of client side Statement objects, which seems to be just
the leak the test is checking for. Note: the test runs with 64MB heap. It
would be interesting to run with other jvms and force a gc() and a heap dump at
this point in the test and see if we still have a lot of Statement objects or
if this is a specific platform/JVM issue.
The trace at the time of failure was :
1XMCURTHDINFO Current Thread Details
NULL ----------------------
3XMTHREADINFO "main" (TID:0x0808D300, sys_thread_t:0x0805CBC8, state:R,
native ID:0x0000644F) prio=5
4XESTACKTRACE at
org/apache/derby/client/am/Cursor.allocateCharBuffer(Bytecode PC:77(Compiled
Code))
4XESTACKTRACE at
org/apache/derby/client/net/NetStatementReply.parseSQLDTARDarray(Bytecode
PC:77(Compiled Code))
4XESTACKTRACE at
org/apache/derby/client/net/NetStatementReply.parseQRYDSC(Bytecode
PC:10(Compiled Code))
4XESTACKTRACE at
org/apache/derby/client/net/NetStatementReply.parseOpenQuery(Bytecode
PC:104(Compiled Code))
4XESTACKTRACE at
org/apache/derby/client/net/NetStatementReply.parseOPNQRYreply(Bytecode
PC:14(Compiled Code))
4XESTACKTRACE at
org/apache/derby/client/net/NetStatementReply.readOpenQuery(Bytecode
PC:6(Compiled Code))
4XESTACKTRACE at
org/apache/derby/client/net/StatementReply.readOpenQuery(Bytecode PC:7(Compiled
Code))
4XESTACKTRACE at
org/apache/derby/client/net/NetStatement.readOpenQuery_(Bytecode PC:11(Compiled
Code))
4XESTACKTRACE at
org/apache/derby/client/am/Statement.readOpenQuery(Bytecode PC:6(Compiled Code))
4XESTACKTRACE at
org/apache/derby/client/am/Statement.flowExecute(Bytecode PC:581(Compiled Code))
4XESTACKTRACE at
org/apache/derby/client/am/Statement.executeQueryX(Bytecode PC:3(Compiled Code))
4XESTACKTRACE at
org/apache/derby/client/am/Statement.executeQuery(Bytecode PC:3(Compiled Code))
4XESTACKTRACE at
org/apache/derbyTesting/functionTests/tests/jdbcapi/derbyStress.testDerby3316(derbyStress.java:156)
4XESTACKTRACE at
org/apache/derbyTesting/functionTests/tests/jdbcapi/derbyStress.main(derbyStress.java:57(Compiled
Code))
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