[
https://issues.apache.org/jira/browse/DERBY-2634?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13213039#comment-13213039
]
Kathey Marsden commented on DERBY-2634:
---------------------------------------
I was wondering, have you had a chance to try this with 10.8.2.2 and jdk 1.6.
If it is still a problem I am curious how the test case behaves with embedded.
Is .SocketInputStream.read() just blocking or really reading large amounts of
data?
> CLOB performance partially very poor on linux system
> ----------------------------------------------------
>
> Key: DERBY-2634
> URL: https://issues.apache.org/jira/browse/DERBY-2634
> Project: Derby
> Issue Type: Improvement
> Components: Network Client, Network Server
> Affects Versions: 10.2.2.0, 10.3.1.4
> Environment: gnu linux, network client and network server on the same
> machine
> Reporter: Frank-Ralph Reiser
> Labels: CLOB
> Attachments: derbytest-linux-laptop-1.66GHz.txt, testcase.zip
>
>
> Doing some performance tests with several differente database
> implementations, we noticed very poor query performance of apache derby under
> certain conditions.
> If the select statement selects a CLOB column and if it contains a subselect,
> traversing the ResultSet takes very long with nearly no cpu load.
--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators:
https://issues.apache.org/jira/secure/ContactAdministrators!default.jspa
For more information on JIRA, see: http://www.atlassian.com/software/jira
