Stéphane Landelle created AVRO-1220:
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Summary: Dead lock
Key: AVRO-1220
URL: https://issues.apache.org/jira/browse/AVRO-1220
Project: Avro
Issue Type: Bug
Components: java
Affects Versions: 1.7.3
Environment: OSX, JDK6
Reporter: Stéphane Landelle
I experience a dead lock when running multiple DataFileReader in concurrent
threads.
See test case here:
https://github.com/slandelle/avro-test
AvroBinaryEncodingTest randomly stalls about 50% of the time.
A thread dump would show a dead lock in org.apache.avro.io.parsing.Symbol class
initialization.
IHMO, the problem is that the Symbol class has static final members that are
instances of Symbol subclasses.
I built a custom version of avro where all the constants (NULL, BOOLEAN, INT,
etc) have been extracted into a dedicated class outside of Symbol hierarchy and
the test case now runs fine.
Cheers,
Stéphane Landelle
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