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From "Andrey Konstantinov (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CASSANDRA-12149) NullPointerException on SELECT with SASI index
Date Sat, 09 Jul 2016 20:45:11 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-12149?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15369283#comment-15369283
] 

Andrey Konstantinov commented on CASSANDRA-12149:
-------------------------------------------------

Yes, there is no NPE without token condition, but NPE is an issue, it aborts all connections
with a client.

You said that token condition is useless when there is partition key constraint. Thank you
for this, and could you, please, clarify few things for me: I use cassandra-spark-connector
to generate token ranges for me to partition my custom RDD in spark (even if I know it hits
a single partition in Cassandra, and CassandraPartitionGenerator from the connector knows
this too). I could use clustering column to partition SELECT results within a single Cassandra
partition, but in this case I would need to know values of a clustering column (and I do not
know this in time of a query). How could I partition SELECT results hitting a single large
Cassandra partition, when I do not know values of clustering columns? Thanks!

> NullPointerException on SELECT with SASI index
> ----------------------------------------------
>
>                 Key: CASSANDRA-12149
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-12149
>             Project: Cassandra
>          Issue Type: Bug
>          Components: sasi
>            Reporter: Andrey Konstantinov
>         Attachments: CASSANDRA-12149.txt
>
>
> If I execute the sequence of queries (see the attached file), Cassandra aborts a connection
reporting NPE on server side. SELECT query without token range filter works, but does not
work when token range filter is specified. My intent was to issue multiple SELECT queries
targeting the same single partition, filtered by a column indexed by SASI, partitioning results
by different token ranges.
> Output from cqlsh on SELECT is the following:
> cqlsh> SELECT namespace, entity, timestamp, feature1, feature2 FROM mykeyspace.myrecordtable
WHERE namespace = 'ns2' AND entity = 'entity2' AND feature1 > 11 AND feature1 < 31 
AND token(namespace, entity) <= 9223372036854775807;
> ServerError: <ErrorMessage code=0000 [Server error] message="java.lang.NullPointerException">



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