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Re: ERXJDBCConnectionAnalyser and Connections Exhausted!
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Re: ERXJDBCConnectionAnalyser and Connections Exhausted!


  • Subject: Re: ERXJDBCConnectionAnalyser and Connections Exhausted!
  • From: Simon <email@hidden>
  • Date: Thu, 28 Oct 2010 14:48:26 +0100

i don't have the answer, but we see this same issue all the time....

simon


On 28 October 2010 13:38, Farrukh Ijaz
<email@hidden> 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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References: 
 >ERXJDBCConnectionAnalyser and Connections Exhausted! (From: Farrukh Ijaz <email@hidden>)

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