db-derby-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Myrna van Lunteren (JIRA)" <j...@apache.org>
Subject [jira] Commented: (DERBY-3198) Using setQueryTimeout will leak sections
Date Mon, 12 Nov 2007 18:41:51 GMT

    [ https://issues.apache.org/jira/browse/DERBY-3198?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12541887
] 

Myrna van Lunteren commented on DERBY-3198:
-------------------------------------------

I wonder if this could be related to the trouble we sometimes see with specific jvms with
the setQueryTimeoutTest, such as DERBY-1848.

> 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
>         Attachments: 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.

-- 
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.


Mime
View raw message