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Posted to commits@cassandra.apache.org by "Sergio Bossa (JIRA)" <ji...@apache.org> on 2016/01/20 18:41:39 UTC

[jira] [Created] (CASSANDRA-11048) JSON queries are not thread safe

Sergio Bossa created CASSANDRA-11048:
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             Summary: JSON queries are not thread safe
                 Key: CASSANDRA-11048
                 URL: https://issues.apache.org/jira/browse/CASSANDRA-11048
             Project: Cassandra
          Issue Type: Bug
            Reporter: Sergio Bossa
            Priority: Critical


{{org.apache.cassandra.cql3.Json}} uses a shared instance of {{JsonStringEncoder}} which is not thread safe (see 1), while {{JsonStringEncoder#getInstance()}} should be used (see 2).

As a consequence, concurrent {{select JSON}} queries often produce wrong (sometimes unreadable) results.

1. http://grepcode.com/file/repo1.maven.org/maven2/org.codehaus.jackson/jackson-core-asl/1.9.2/org/codehaus/jackson/io/JsonStringEncoder.java
2. http://grepcode.com/file/repo1.maven.org/maven2/org.codehaus.jackson/jackson-core-asl/1.9.2/org/codehaus/jackson/io/JsonStringEncoder.java#JsonStringEncoder.getInstance%28%29



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