Java mon amour

Friday, August 29, 2014

WebLogic: disabling JMS message consumption at startup

One can TEMPORARILY disable consumption from a JMS Destination (JMSServer / Active Destinations/Monitor) , but when you restart, the queue is enabled again. This in production can be fatal.

One can disable PERMANENTLY consumption with this setting in the queue configuration:

See http://docs.oracle.com/cd/E23943_01/apirefs.1111/e13952/taskhelp/jms_modules/distributed_queues/ConfigureUDQPauseMessages.html

Wednesday, August 27, 2014

OSB and SLA alerts in Eclipse

When you define a SLA alert in the OSB Console (sbconsole) this xml is added you your .proxy file :

  <ser:alertRules>
    <ser:alertRule name="slow" enabled="true">
      <aler:description>slow</aler:description>
      <aler:AlertFrequency>every-time</aler:AlertFrequency>
      <aler:AlertSeverity>normal</aler:AlertSeverity>
      <aler:StopProcessing>false</aler:StopProcessing>
      <aler:Condition type="statistics">
        <aler:config aggregation-interval="10" xsi:type="mon:monitoringConditionType" xmlns:mon="http://www.bea.com/wli/monitoring/alert/condition/monitoringstatistic">
          <mon:monCondExpr>
            <mon:function>max</mon:function>
            <mon:lhs>Project$PVtest/PVtest/Transport/response-time</mon:lhs>
            <mon:lhs-operand-type xsi:nil="true"/>
            <mon:lhsDisplayName>Response Time</mon:lhsDisplayName>
            <mon:operator>></mon:operator>
            <mon:rhs>600000</mon:rhs>
          </mon:monCondExpr>
        </aler:config>
      </aler:Condition>
      <aler:AlertDestination ref="PVtest/pier"/>
      <aler:AlertSummary>slow</aler:AlertSummary>
    </ser:alertRule>
  </ser:alertRules>

where PVtest/pier is an AlertDestination.

The horrifying thing is that if I import into eclipse this sbconfig.jar, the alertRules is emptied.

You can find some reference in the comments here and here. Of course I am shocked and horrified, because this is horrible and horrific.

So if you want to have those SLA, you must be very careful with Eclipse....