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https://issues.apache.org/jira/browse/DBCP-282?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12669979#action_12669979
]
Josh Wyatt commented on DBCP-282:
---------------------------------
I was able to get the desired behavior using commons-dbcp-1.2.2 with the
following patch against PerUserPoolDataSource.java.
This was a backport of a similar code change noted in 1.3, and congruent with
the research/recommendation in DBCP-178.
---
commons-dbcp-1.2.2-src/src/java/org/apache/commons/dbcp/datasources/PerUserPoolDataSource.java
2007-03-25 17:51:25.000000000 -0400
+++
commons-dbcp-1.2.2b-src/src/java/org/apache/commons/dbcp/datasources/PerUserPoolDataSource.java
2009-01-31 09:36:31.000000000 -0500
@@ -419,7 +419,9 @@
if (defaultTransactionIsolation != UNKNOWN_TRANSACTIONISOLATION) {
con.setTransactionIsolation(defaultTransactionIsolation);
}
- con.setReadOnly(defaultReadOnly);
+ if (con.isReadOnly() != defaultReadOnly) {
+ con.setReadOnly(defaultReadOnly);
+ }
}
/**
Our testing indicates that this completely disables the defaultReadOnly
parameter for PerUserPoolDataSource, which may not be desirable for some users.
> defaultReadOnly not honored in server.xml for PerUserPoolDataSource
> -------------------------------------------------------------------
>
> Key: DBCP-282
> URL: https://issues.apache.org/jira/browse/DBCP-282
> Project: Commons Dbcp
> Issue Type: Bug
> Affects Versions: 1.2.2
> Environment: Tomcat 4.1.29/Apache-2.0.55/Oracle JDBC on RedHat ES3.0
> on i386
> Reporter: Josh Wyatt
> Fix For: 1.3
>
> Original Estimate: 2h
> Remaining Estimate: 2h
>
> Running dbcp-1.2.2 on Apache-2.0.55/Tomcat-4.1.29/Jakarta on Linux, using
> JDBC to connect to Oracle 10g DB.
> We are seeing the constant SET TRANSACTION READ WRITE activity against the DB
> connection, and although I appreciate the discussion about a new
> configuration option, I am not able to figure out how to disable this
> activity.
> Background on this issue can be found at:
> http://issues.apache.org/jira/browse/DBCP-178
> For reference, assume that we do not have control over the codebase, although
> we have full control over the server configuration (server.xml, etc).
> I found the configuration options page for DBCP- but there appears to be no
> discussion on the logistics/mechanics of how to set or change these
> configuration options.
> Our connections are implemented as
> type="org.apache.commons.dbcp.datasources.PerUserPoolDataSource" in
> server.xml. We have tried setting the parameter in the ResourceParams
> section for the JDBC stanza, like this:
> <ResourceParams name="jdbc/OURDBINSTANCENAME">
> <parameter>
> <name>factory</name>
>
> <value>org.apache.commons.dbcp.datasources.PerUserPoolDataSourceFactory</value>
> </parameter>
> <parameter>
> <name>defaultReadOnly</name>
> <value>notset</value>
> </parameter>
> ...
> </ResourceParams>
> ...with no success.
> It should be noted that previous to discovering this issue, we did not have
> this parameter set at all; so I'm not even sure if this is the proper
> location for this configuration directive. I could not find any guidance in
> the DBCP documentation on where to put this stuff.
> Please advise,
> Josh
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