db-derby-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Lily Wei (JIRA)" <j...@apache.org>
Subject [jira] Updated: (DERBY-4314) With derby client setTransactionIsolation executes and commits even if isolation has not changed
Date Wed, 29 Jul 2009 07:28:14 GMT

     [ https://issues.apache.org/jira/browse/DERBY-4314?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Lily Wei updated DERBY-4314:
----------------------------

    Attachment: DERBY-4314-5.diff

This patch fixs 
- mixed tabs/spaces indentation at @@ -909,6 +909,9 @@ 
- mixed tabs/spaces indentation at @@ -1005,8 +1008,21 @@ 
- use traceEntry instead of traceExit 

If it will be better for performance, I will be better to change the _isolation to READ_COMMITTED.
However, we have to handle the assumption in the code and piggybacking situation. Is this
the best place to change the current assumption?

> With derby client setTransactionIsolation executes and commits even if isolation has
not changed 
> -------------------------------------------------------------------------------------------------
>
>                 Key: DERBY-4314
>                 URL: https://issues.apache.org/jira/browse/DERBY-4314
>             Project: Derby
>          Issue Type: Improvement
>          Components: JDBC, Network Client
>    Affects Versions: 10.1.3.1, 10.2.2.0, 10.3.3.0, 10.4.2.0, 10.5.1.1, 10.6.0.0
>            Reporter: Kathey Marsden
>            Priority: Minor
>         Attachments: DERBY-4314-2.diff, DERBY-4314-3.diff, DERBY-4314-5.diff, DERBY-4314.diff
>
>
> With in EmbedConnection.setIsolation() we have a check to see if the isolation level
is the same and if so just return without doing a commit:
>   public void setTransactionIsolation(int level) throws SQLException {
> 		if (level == getTransactionIsolation())
> 			return;
> with org.apache.derby.client.am.Connection we have no such check. It would be good if
the client driver acted like embedded.

-- 
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