Russ Hatch created CASSANDRA-6964:
-------------------------------------
Summary: error in logs: ByteBuf.release() was not called before
it's garbage-collected
Key: CASSANDRA-6964
URL: https://issues.apache.org/jira/browse/CASSANDRA-6964
Project: Cassandra
Issue Type: Bug
Reporter: Russ Hatch
Attachments: node1.log
Running some of our paging tests against 2.1 several of these exceptions are
triggered:
{noformat}
run_tests:
[java] SLF4J: Failed to load class "org.slf4j.impl.StaticLoggerBinder".
[java] SLF4J: Defaulting to no-operation (NOP) logger implementation
[java] SLF4J: See http://www.slf4j.org/codes.html#StaticLoggerBinder for
further details.
[java] test_zero_page_size_ignored (__main__.TestPagingSize) ... ERROR
[java]
[java]
======================================================================
[java] ERROR: test_zero_page_size_ignored (__main__.TestPagingSize)
[java]
----------------------------------------------------------------------
[java] Traceback (most recent call last):
[java] File "/home/rhatch/git/knifewine/cassandra-dtest-jython/base.py",
line 152, in tearDown
[java] raise AssertionError('Unexpected error in %s node log: %s' %
(node.name, errors))
[java] AssertionError: Unexpected error in node1 node log: ["ERROR
[nioEventLoopGroup-3-2] 2014-03-31 17:16:44,337 Slf4JLogger.java:176 - LEAK:
ByteBuf.release() was not called before it's garbage-collected. Enable advanced
leak reporting to find out where the leak occurred. To enable advanced leak
reporting, specify the JVM option '-Dio.netty.leakDetectionLevel=advanced' or
call ResourceLeakDetector.setLevel()\n"]
[java]
[java]
----------------------------------------------------------------------
[java] Ran 1 test in 37.876s
[java]
[java] FAILED (errors=1)
{noformat}
These tests are run through jython with the java driver, so there's a little
bit of setup needed (if you have ccm and dtest you are most of the way there):
1. clone and set up https://github.com/riptano/cassandra-dtest-jython . You may
need to install ivy and copy ivy.jar to ~/.ant/lib/ivy.jar
2. you should have ccm, and CASSANDRA_DIR should be set in your environment
3. from the root of cassandra-dtest-jython run the tests with 'ant run_tests'.
The tests take about 10 minutes run completely.
4. if you don't want to wait for the entire test suite to run, change the
bottom of paging_test.py to just run a single test like so:
{noformat}
if __name__ == '__main__':
suite = unittest.TestSuite()
suite.addTest(TestPagingSize("test_zero_page_size_ignored"))
unittest.TextTestRunner(verbosity=2).run(suite)
exit(0)
{noformat}
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