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https://issues.apache.org/jira/browse/CASSANDRA-7827?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14110861#comment-14110861
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Paul Pak commented on CASSANDRA-7827:
-------------------------------------
Usage example:
{code}
String cf = "my_cf"; // underscores are not valid for MultipleOutputs output
names
String alias = "myCfAlias";
// set properties for CqlBulkOutputFormat as usual
CqlBulkOutputFormat.setColumnFamilySchema(conf, cf, "CREATE TABLE my_cf ...");
CqlBulkOutputFormat.setColumnFamilyInsertStatement(conf, cf, "INSERT INTO
my_cf...");
// set the alias
CqlBulkOutputFormat.setColumnFamilyAlias(conf, alias, cf);
// interactions with MultipleOutputs should be done using the alias
MultipleOutputs.addNamedOutput(job, alias, CqlBulkOutputFormat.class,
Object.class, List.class);
...
// again, interactions with MultipleOutputs should be done using the alias,
so...
multipleOutputs.write(alias, null, byteBufferList);
{code}
> Work around for output name restriction when using MultipleOutputs with
> CqlBulkOutputFormat
> -------------------------------------------------------------------------------------------
>
> Key: CASSANDRA-7827
> URL: https://issues.apache.org/jira/browse/CASSANDRA-7827
> Project: Cassandra
> Issue Type: Improvement
> Components: Hadoop
> Reporter: Paul Pak
> Assignee: Paul Pak
> Priority: Minor
> Labels: cql3, hadoop
> Attachments: trunk-7827-v1.txt
>
>
> When using MultipleOutputs with CqlBulkOutputFormat, the column family names
> to output to are restricted to only alphanumeric characters due to the logic
> found in MultipleOutputs.checkNamedOutputName(). This will provide a way to
> alias any column family name to a MultipleOutputs compatible output name, so
> that column family names won't be artificially restricted when using
> MultipleOutputs.
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