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From "V.Narayanan (JIRA)" <j...@apache.org>
Subject [jira] Updated: (DERBY-2506) Adding the locator information to FD:OCA descriptor (FDODSC) andFD:OCA data (FDODTA) of the SQLDTA objects
Date Wed, 02 May 2007 09:08:15 GMT

     [ https://issues.apache.org/jira/browse/DERBY-2506?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

V.Narayanan updated DERBY-2506:

    Attachment: PreparedCallable_DRDA_v5.stat

Thanx a ton for the reviews and comments Rick.

Pls find some answers to the issues pointed.

>1) You have added some trace code to DRDAConnThread. Do you really want these tracesto
be printed out >whenever we are running debug jars? Should these traces be enabled by some
particular tracepoint? >Alternatively, is this just scaffolding which can be removed when
you are done debugging this code?

I got the following extract from http://wiki.apache.org/db-derby/ProtocolDebuggingTips

Server SanityManager.DEBUG Output

With a sane build, you can set the derby property, derby.drda.debug=true. This will produce
debug output on the server console which can be helpful in debugging protocol issues. This
property also launches a thread which will print periodic memory usage information for the
server jvm, so can be useful in debugging memory leaks as well. 

Also these traces exist for other Lid constant cases as well. 

>2) In NetStatementRequest.computeProtocolTypesAndLengths(), you are using the non-nullable
DRDA types for >locators. All of the other cases in this switch statement are using the
nullable DRDA types. If you are sure that >you should be using DRDA_TYPE_LOBLOC and DRDA_TYPE_CLOBLOC
rather than DRDA_TYPE_NLOBLOC >and DRDA_TYPE_NCLOBLOC, could you include a comment explaining
why the locator cases are different from >the other cases?

You are correct. These should have been Nullable. The patch attached addresses this issue.

I am running tests on this patch and shall post the results as soon as the tests complete.

I request for this patch to be considered for reviews and comments.

Thanx again for the comments and review Rick.

> Adding the locator information to FD:OCA descriptor (FDODSC) andFD:OCA data (FDODTA)
 of the SQLDTA objects
> -----------------------------------------------------------------------------------------------------------
>                 Key: DERBY-2506
>                 URL: https://issues.apache.org/jira/browse/DERBY-2506
>             Project: Derby
>          Issue Type: Sub-task
>            Reporter: V.Narayanan
>         Assigned To: V.Narayanan
>         Attachments: BlobLocatorTestProgram.java, PreparedCallable_DRDA_Test_diff.diff,
PreparedCallable_DRDA_Test_diff.stat, PreparedCallable_DRDA_Test_diff_v3.diff, PreparedCallable_DRDA_Test_diff_v3.stat,
PreparedCallable_DRDA_v1.diff, PreparedCallable_DRDA_v1.stat, PreparedCallable_DRDA_v2.diff,
PreparedCallable_DRDA_v2.stat, PreparedCallable_DRDA_v3.diff, PreparedCallable_DRDA_v3.stat,
PreparedCallable_DRDA_v4.diff, PreparedCallable_DRDA_v4.stat, PreparedCallable_DRDA_v5.diff,

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