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From "Sylvain Lebresne (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (CASSANDRA-7192) QueryTrace for a paginated query exists only for the first element of the list returned by getAllExecutionInfo()
Date Fri, 16 May 2014 11:22:43 GMT

     [ https://issues.apache.org/jira/browse/CASSANDRA-7192?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Sylvain Lebresne resolved CASSANDRA-7192.
-----------------------------------------

    Resolution: Not a Problem

Definitively a Java Driver problem. If you could open an issue on the driver JIRA, that would
be perfect.

> QueryTrace for a paginated query exists only for the first element of the list returned
by getAllExecutionInfo()
> ----------------------------------------------------------------------------------------------------------------
>
>                 Key: CASSANDRA-7192
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-7192
>             Project: Cassandra
>          Issue Type: Bug
>          Components: Core
>         Environment: A Cassandra 2.0.6 cluster of 16 nodes running on Ubuntu 12.04.2
LTS, using the Java Driver in the client.
>            Reporter: Roger Hernandez
>            Priority: Minor
>
> Within the Java Driver, with tracing enabled, I execute a large query that benefits from
automatic pagination (with fetchSize=10).
> I make sure to go through all of the ResultSet, and by the end of the query I call getAllExecutionInfo()
on the ResultSet. This returns an ArrayList of 9 ExecutionInfo elements (the number of pages
it requested from Cassandra).
> When accessing the QueryTrace in the ExecutionInfo from the ArrayList at index 0, I can
retrieve the information without issues. However, the first is the only one that has QueryTrace
information, every other ExecutionInfo of the array returns a NULL QueryTrace object.



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