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From "chris erway (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (CASSANDRA-5312) json2sstable throws java.lang.ClassCastException when using Murmur3
Date Tue, 05 Mar 2013 01:08:12 GMT

     [ https://issues.apache.org/jira/browse/CASSANDRA-5312?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

chris erway resolved CASSANDRA-5312.
------------------------------------

    Resolution: Not A Problem
    
> json2sstable throws java.lang.ClassCastException when using Murmur3
> -------------------------------------------------------------------
>
>                 Key: CASSANDRA-5312
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-5312
>             Project: Cassandra
>          Issue Type: Bug
>          Components: Tools
>    Affects Versions: 1.2.1
>         Environment: DataStax community AMI
>            Reporter: chris erway
>            Priority: Minor
>
> Tried to import some JSON tables using json2sstable today on a new cluster using the
Murmur3Partitioner.  It threw this exception:
> $ sudo -u cassandra json2sstable -K Keyspace -c CFName Keyspace-CFName-hd-1-Data.db.json
Keyspace-CFName-hd-1-Data.db
> log4j:WARN No appenders could be found for logger (org.apache.cassandra.config.DatabaseDescriptor).
> log4j:WARN Please initialize the log4j system properly.
> log4j:WARN See http://logging.apache.org/log4j/1.2/faq.html#noconfig for more info.
> Importing 21 keys...
> java.lang.ClassCastException: org.apache.cassandra.utils.Murmur3BloomFilter cannot be
cast to org.apache.cassandra.utils.Murmur2BloomFilter
> 	at org.apache.cassandra.utils.FilterFactory.serialize(FilterFactory.java:56)
> 	at org.apache.cassandra.io.sstable.SSTableWriter$IndexWriter.close(SSTableWriter.java:482)
> 	at org.apache.cassandra.io.sstable.SSTableWriter.closeAndOpenReader(SSTableWriter.java:325)
> 	at org.apache.cassandra.io.sstable.SSTableWriter.closeAndOpenReader(SSTableWriter.java:319)
> 	at org.apache.cassandra.tools.SSTableImport.importUnsorted(SSTableImport.java:379)
> 	at org.apache.cassandra.tools.SSTableImport.importJson(SSTableImport.java:313)
> 	at org.apache.cassandra.tools.SSTableImport.main(SSTableImport.java:535)
> ERROR: org.apache.cassandra.utils.Murmur3BloomFilter cannot be cast to org.apache.cassandra.utils.Murmur2BloomFilter
> There's a related issue in CASSANDRA-4196 having to do with bulk loading that suggests
a fix might involve passing the right type down to the FilterFactory.

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