[jira] Resolved: (DERBY-3198) Using setQueryTimeout will leak sections

["Dyre Tjeldvoll (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/DERBY-3198?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Dyre Tjeldvoll resolved DERBY-3198.
-----------------------------------

    Resolution: Fixed

Committed revision 602495.

> Using setQueryTimeout will leak sections 
> -----------------------------------------
>
>                 Key: DERBY-3198
>                 URL: https://issues.apache.org/jira/browse/DERBY-3198
>             Project: Derby
>          Issue Type: Bug
>          Components: JDBC, Network Client
>    Affects Versions: 10.3.1.4
>            Reporter: Dyre Tjeldvoll
>            Assignee: Dyre Tjeldvoll
>         Attachments: derby-3198.v1.diff, derby-3198.v2.diff, derby-3198.v3.diff, derby-3198.v4.diff, derby-3198.v5.diff, derby-3198.v6.diff, repro.diff
>
>
> The implementation of setQueryTimeout relies on NetStatementReply.writeSetSpecialRegister() which will allocate a dynamic section when called. No reference to this Section object is kept, and so Section.free() never gets called on it. Executing the same statment repeatedly with a query timeout set results in the client driver throwing an exception because the number of Sections exceeding 32000.

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