Re: ERXJDBCConnectionAnalyser and Connections Exhausted!
Re: ERXJDBCConnectionAnalyser and Connections Exhausted!
- Subject: Re: ERXJDBCConnectionAnalyser and Connections Exhausted!
- From: Chuck Hill <email@hidden>
- Date: Thu, 28 Oct 2010 10:01:37 -0700
I wrote it to debug a failure to connect so this was never a concern - the JVM exited right after this. It was NOT intended to be used how you are using it. It is intended to debug configuration issues.
Closing this connection is non-trivial.
For what I think this is doing, you would be better off making a simple fetch of an entity that you know is there.
Chuck
On Oct 28, 2010, at 5:38 AM, Farrukh Ijaz wrote:
> Hi Gurus,
>
> How can I release the JDBC connection that is hooked by ERXJDBCConnectionAnalyser class?
>
> I've defined following properties:
>
> er.extensions.ERXJDBCAdaptor.useConnectionBroker = true
>
> dbMinConnectionsGLOBAL=1
> dbMaxConnectionsGLOBAL=5
> dbMaxCheckoutGLOBAL=600
> dbDebugLevelGLOBAL=3
>
> I've following code being called one of my direct actions for testing purpose:
>
> public WOActionResults monitorAction() {
> NSMutableDictionary<String, String> dictStatus = new NSMutableDictionary<String, String>();
> for (EOModel m : EOModelGroup.defaultGroup().models()) {
> ERXJDBCConnectionAnalyzer ca = new ERXJDBCConnectionAnalyzer(m);
> try {
> ca.testConnection();
> dictStatus.put(m.name(), "OK");
> } catch (Throwable t) {
> dictStatus.put(m.name(), "Error: " + t.getMessage());
> }
> }
> WOComponent page = pageWithName(Monitor.class.getName());
> page.takeValueForKey(dictStatus, "dictStatus");
> return page;
> }
>
> If I set the useConnectionBroker property to "false", it works okay. Otherwise I get following exception.
>
> er.transaction.adaptor.ConnectionAnalyzer (ERXJDBCConnectionAnalyzer.java:84) - Checking JDBC connection with information {minConnections = "1"; ... ... ... ... ... ...
> 2010-10-28 15:33:39,297 INFO XXXXXXXX[-:12345 0] er.transaction.adaptor.ConnectionAnalyzer (ERXJDBCConnectionAnalyzer.java:105) - Trying to create JDBCAdaptor...
> 2010-10-28 15:33:39,297 INFO XXXXXXXX[-:12345 0] er.transaction.adaptor.ConnectionAnalyzer (ERXJDBCConnectionAnalyzer.java:115) - Successfully created adaptor er.extensions.jdbc.ERXJDBCAdaptor
> 2010-10-28 15:33:39,298 INFO XXXXXXXX[-:12345 0] er.transaction.adaptor.ConnectionAnalyzer (ERXJDBCConnectionAnalyzer.java:126) - Trying to create plugin...
> 2010-10-28 15:33:39,298 INFO XXXXXXXX[-:12345 0] er.transaction.adaptor.ConnectionAnalyzer (ERXJDBCConnectionAnalyzer.java:131) - Created plugin com.webobjects.jdbcadaptor.PostgresqlPlugIn
> 2010-10-28 15:33:39,298 INFO XXXXXXXX[-:12345 0] er.transaction.adaptor.ConnectionAnalyzer (ERXJDBCConnectionAnalyzer.java:170) - Trying to load JDBC driver org.postgresql.Driver...
> 2010-10-28 15:33:39,299 INFO XXXXXXXX[-:12345 0] er.transaction.adaptor.ConnectionAnalyzer (ERXJDBCConnectionAnalyzer.java:183) - Successfully loaded JDBC driver org.postgresql.Driver
> 2010-10-28 15:33:39,299 INFO XXXXXXXX[-:12345 0] er.transaction.adaptor.ConnectionAnalyzer (ERXJDBCConnectionAnalyzer.java:192) - JDBC driver and plugin are loaded, trying to connect...
> 2010-10-28 15:33:41,299 WARN XXXXXXXX[-:12345 0] er.extensions.jdbc.ERXJDBCConnectionBroker (ERXJDBCConnectionBroker.java:368) - Connections Exhausted! Will wait and try again in loop 0
> 2010-10-28 15:33:43,300 WARN XXXXXXXX[-:12345 0] er.extensions.jdbc.ERXJDBCConnectionBroker (ERXJDBCConnectionBroker.java:368) - Connections Exhausted! Will wait and try again in loop 1
> 2010-10-28 15:33:45,301 WARN XXXXXXXX[-:12345 0] er.extensions.jdbc.ERXJDBCConnectionBroker (ERXJDBCConnectionBroker.java:368) - Connections Exhausted! Will wait and try again in loop 2
>
> How can I enforce ERXJDBCConnectionAnalyser to release connection?
>
> Thanks,
>
> Farrukh
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--
Chuck Hill Senior Consultant / VP Development
Practical WebObjects - for developers who want to increase their overall knowledge of WebObjects or who are trying to solve specific problems.
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