[jira] [Created] (CASSANDRA-7120) Bad paging state returned for prepared statements for last page

["Tyler Hobbs (JIRA)" <ji...@apache.org>]

Tyler Hobbs created CASSANDRA-7120:
--------------------------------------

             Summary: Bad paging state returned for prepared statements for last page
                 Key: CASSANDRA-7120
                 URL: https://issues.apache.org/jira/browse/CASSANDRA-7120
             Project: Cassandra
          Issue Type: Bug
          Components: Core
            Reporter: Tyler Hobbs


When executing a paged query with a prepared statement, a non-null paging state is sometimes being returned for the final page, causing an endless paging loop.

Specifically, this is the schema being used:
{noformat}
    CREATE KEYSPACE test3rf WITH replication = {'class': 'SimpleStrategy', 'replication_factor': '3'}';
    USE test3rf;
    CREATE TABLE test3rf.test (
                k int PRIMARY KEY,
                v int
    )
{noformat}

The inserts are like so:
{noformat}
INSERT INTO test3rf.test (k, v) VALUES (?, 0)
{noformat}

With values from [0, 99] used for k.

The query is {{SELECT * FROM test3rf.test}} with a fetch size of 3.

The final page returns the row with k=3, and the paging state is {{0004000000420004000176007fffffa2}}.  This matches the paging state from three pages earlier.  When executing this with a non-prepared statement, no paging state is returned for this page.

This problem doesn't happen with the 2.0 branch.



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