DB Adapter polling as singleton process is not working as expected

Am using poller DB adapater to control the transaction per seconds to the downstream system and i want this poller process as singleton (One instance should be in running state at a time).
As suggested in oracle documents , below is the parameters configured in composite.xml file.
<service name="polling_Mange_Alert_Events"
  ui:wsdlLocation="polling_Mange_Alert_Events.wsdl">
<interface.wsdl interface="http://xmlns.oracle.com/pcbpel/adapter/db/Application1/int_app_manageAlerts/polling_Mange_Alert_Events#wsdl.interface(polling_Mange_Alert_Events_ptt)"/>
  <binding.jca config="polling_Mange_Alert_Events_db.jca">
  <property name="singleton">true</property>
  </binding.jca>
  <property name="jca.retry.count" type="xs:int" many="false" override="may">2147483647</property>
  <property name="jca.retry.interval" type="xs:int" many="false"
  override="may">1</property>
  <property name="jca.retry.backoff" type="xs:int" many="false"
  override="may">2</property>
  <property name="jca.retry.maxInterval" type="xs:string" many="false"
  override="may">120</property>
  </service>
Below is the JCA file parameters configured :
<adapter-config name="polling_Mange_Alert_Events" adapter="Database Adapter" wsdlLocation="polling_Mange_Alert_Events.wsdl" xmlns="http://platform.integration.oracle/blocks/adapter/fw/metadata">
  <connection-factory location="eis/DB/vff-int-fus" UIConnectionName="PT_APPINFRA" adapterRef=""/>
  <endpoint-activation portType="polling_Mange_Alert_Events_ptt" operation="receive">
    <activation-spec className="oracle.tip.adapter.db.DBActivationSpec">
      <property name="DescriptorName" value="polling_Mange_Alert_Events.ManageAlertEvents"/>
      <property name="QueryName" value="polling_Mange_Alert_EventsSelect"/>
      <property name="MappingsMetaDataURL" value="polling_Mange_Alert_Events-or-mappings.xml"/>
      <property name="PollingStrategy" value="LogicalDeletePollingStrategy"/>
      <property name="MarkReadColumn" value="TRANSACTION_STATUS"/>
      <property name="MarkReadValue" value="Processing"/>
      <property name="PollingInterval" value="10"/>
      <property name="MaxRaiseSize" value="5"/>
      <property name="MaxTransactionSize" value="5"/>
      <property name="NumberOfThreads" value="1"/>
      <property name="ReturnSingleResultSet" value="false"/>
      <property name="MarkUnreadValue" value="Pending"/>
    </activation-spec>
  </endpoint-activation>
</adapter-config>
This poller process is running on clustered environment (2 soa nodes) and it is not working as expected as singleton process.
Please advise to solve this issue ?

Hi,
1.Set Singleton property outside   <binding.jca> like this:
<binding.jca config="polling_Mange_Alert_Events_db.jca"/>
  <property name="singleton">true</property>
  <property name="jca.retry.count" type="xs:int" many="false" override="may">2147483647</property>
  <property name="jca.retry.interval" type="xs:int" many="false"
2.Also you can try setting these values in jca file:
<property name="RowsPerPollingInterval" value="100"/>
<property name="MaxTransactionSize" value="100"/>
3. try to increase the polling interval time.
Regards,
Anshul

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    Inputting the value and changing it straight away is relatively rare.
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    My latest Technet article - Dynamic XAML

  • Subtraction of two key figures normalized to result not working as expected

    Hello SAP Community!
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    200805         PLANT-B  MAT-1           200805          74,240.00
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    200805         PLANT-B  MAT-1           200807          74,240.00
    200806         PLANT-A  MAT-1           200805               0.00
    200806         PLANT-B  MAT-1           200805               0.00
    200806         PLANT-A  MAT-1           200806         510,235.00
    200806         PLANT-B  MAT-1           200806          74,240.00
    200806         PLANT-A  MAT-1           200807         438,721.00
    200806         PLANT-B  MAT-1           200807          74,240.00
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    MAT1      PLANT-A  
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                       Comparison Units (June 2008) 510,235.00  438,721.00
              PLANT-B  
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                       Comparison Units (June 2008)  74,240.00   74,240.00
              TOTALS   Base Units                   512,961.00  431,221.00
                       Comparison Units             584,475.00  512,961.00
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    Material  Plant                                 2008/06     2008/07
    ===================================================================
    MAT1      PLANT-A  
                       Base Units (May 2008)        438,721.00  356,981.00
                       Base Units % (May 2008)      85.527%     85.527%
                       Comparison Units (June 2008) 510,235.00  438,721.00
                       Comparison Units %(Jun 2008) 87.298%     82.784%
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                       Base Units (May 2008)         74,240.00   74,240.00
                       Base Units % (May 2008)       14.473%     15.702%
                       Comparison Units (June 2008)  74,240.00   74,240.00
                       Comparison Units %(Jun 2008)  12.702%     17.216%
              TOTALS   Base Units                   512,961.00  431,221.00
                       Comparison Units             584,475.00  512,961.00
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    Material  Plant                                 2008/06     2008/07
    ===================================================================
    MAT1      PLANT-A  
                       Base Units (May 2008)        438,721.00  356,981.00
                       Base Units % (May 2008)      85.527%     85.527%
                       Comparison Units (June 2008) 510,235.00  438,721.00
                       Comparison Units %(Jun 2008) 87.298%     82.784%
                       Delta base vs. comp. units %  1.77%       2.74%
                       Delta base vs. comp. units    71,514.00  81,740.00
              PLANT-B  
                       Base Units (May 2008)         74,240.00   74,240.00
                       Base Units % (May 2008)       14.473%     15.702%
                       Comparison Units (June 2008)  74,240.00   74,240.00
                       Comparison Units %(Jun 2008)  12.702%     17.216%
                       Delta base vs. comp. units %  -1.77%      -2.74%
                       Delta base vs. comp. units         0.00        0.00
              TOTALS   Base Units                   512,961.00  431,221.00
                       Comparison Units             584,475.00  512,961.00
    5) PROBLEM:
    In my report, the "Delta base vs. comp. units %" is not working as expected and
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    Material  Plant                                 2008/06     2008/07
    ===================================================================
    MAT1      PLANT-A  
                       Base Units (May 2008)        438,721.00  356,981.00
                       Base Units % (May 2008)      85.527%     85.527%
                       Comparison Units (June 2008) 510,235.00  438,721.00
                       Comparison Units %(Jun 2008) 87.298%     82.784%
                       Delta base vs. comp. units %  71,514.00  81,740.00 <<<WRONG!!
                       Delta base vs. comp. units    71,514.00  81,740.00
              PLANT-B  
                       Base Units (May 2008)         74,240.00   74,240.00
                       Base Units % (May 2008)       14.473%     15.702%
                       Comparison Units (June 2008)  74,240.00   74,240.00
                       Comparison Units %(Jun 2008)  12.702%     17.216%
                       Delta base vs. comp. units %       0.00        0.00
                       Delta base vs. comp. units         0.00        0.00
              TOTALS   Base Units                   512,961.00  431,221.00
                       Comparison Units             584,475.00  512,961.00
    The formulas are:
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    b) Delta base vs. comp. units
      Delta base vs. comp. units = Comparison Units - Base Units
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    - Base Units %
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    - Delta base vs. comp. units
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    Thanks for the time taken to read in detail all of this. Long text but necessary to understand what the problem is.
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    Thank you.
    Mario

    Hi,
    The subraction will be carried out before doing the normalization of your KF's. So, it is displaying "number of units". Create a calculated keyfigure and subtract the KF's and in the properties of this calculated keyfigure, change the enhancement as "After Aggregation".
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    Regards,
    S P.

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