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Posted to commits@cassandra.apache.org by "Ivan Ryndin (JIRA)" <ji...@apache.org> on 2016/01/20 21:04:39 UTC
[jira] [Updated] (CASSANDRA-11048) JSON queries are not thread safe
[ https://issues.apache.org/jira/browse/CASSANDRA-11048?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Ivan Ryndin updated CASSANDRA-11048:
------------------------------------
Attachment: 0001-Fix-thread-unsafe-usage-of-JsonStringEncoder-see-CAS.patch
patch file submitted
> 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
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