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From "Joseph Allemandou (JIRA)" <j...@apache.org>
Subject [jira] [Created] (CASSANDRA-10481) Quoted capitalised keyspace doesn't work as output for Hadoop
Date Thu, 08 Oct 2015 15:03:26 GMT
Joseph Allemandou created CASSANDRA-10481:
---------------------------------------------

             Summary: Quoted capitalised keyspace doesn't work as output for Hadoop
                 Key: CASSANDRA-10481
                 URL: https://issues.apache.org/jira/browse/CASSANDRA-10481
             Project: Cassandra
          Issue Type: Bug
          Components: Hadoop
         Environment: Linux
            Reporter: Joseph Allemandou


When using CqlOutputFormat with a quoted keyspace containing capital letters, the initialisation
of the CqlRecordWriter fails.

In the code,error is hapenning at metadata table creation in the core constructor:
{code:title=CqlRecordWriter.java-main constructor|borderStyle=solid}
CqlRecordWriter(Configuration conf) {
         ...
        try
        {
            String keyspace = ConfigHelper.getOutputKeyspace(conf);
            try (Session client = CqlConfigHelper.getOutputCluster(ConfigHelper.getOutputInitialAddress(conf),
conf).connect(keyspace))
            {
                ringCache = new NativeRingCache(conf);
                if (client != null)
                {
                    TableMetadata tableMetadata = client.getCluster().getMetadata().getKeyspace(client.getLoggedKeyspace()).getTable(ConfigHelper.getOutputColumnFamily(conf));
                ...    
    }
{code}

It seemed to be dues to the reused function Metadata.handleId(keyspace) that, applied mulitple
times, removes uoptes and finally lowercase the keyspace name.

A valid solution (working for us at WMF) is to reuse the keyspace variable defined earlier
instead of using the client one.

{code:title=CqlRecordWriter.java-main constructor|borderStyle=solid}
CqlRecordWriter(Configuration conf) {
         ...
        try
        {
            String keyspace = ConfigHelper.getOutputKeyspace(conf);
            try (Session client = CqlConfigHelper.getOutputCluster(ConfigHelper.getOutputInitialAddress(conf),
conf).connect(keyspace))
            {
                ringCache = new NativeRingCache(conf);
                if (client != null)
                {
                    TableMetadata tableMetadata = client.getCluster().getMetadata().getKeyspace(keyspace).getTable(ConfigHelper.getOutputColumnFamily(conf));
                ...    
    }
{code}




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