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Sergio Bossa commented on CASSANDRA-11048: ------------------------------------------ [~henryman], the {{Json}} class can definitely be tested in isolation, no need for integration tests in this case. > 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 > Labels: easyfix, newbie, patch > Attachments: > 0001-Fix-thread-unsafe-usage-of-JsonStringEncoder-see-CAS.patch > > > {{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 -- This message was sent by Atlassian JIRA (v6.3.4#6332)