DB Adapter polling on cluster

Question

Hi
Installation:
SOA Suite installed on cluster.
SOA Suite 10.1.3.3 MLR11
DB 10g
Problem (Metalink Service Request: 7237226.994 )
An ESB flow is polling on a table and doing a logical delete (update on a table when polled by using the markedread, markedreserved, markedunread properties). The problem that we are facing is that each node is polling the records and it start per node an ESB. As result each data to process is dubbeld.
We want to prevent this by using in the MarkReservedValue-property (MINE${instance}) and MarkReadValue-property (READ${instance}) where "${instance}" refers to the node who polls the record.
At runtime when polling the READ[undef:instance] value is inserted into our column who indicates that the record is polled or not. How can we make sure that the ${instance} is getting the correct value at runtime?
This is how my polling is defined.
<binding name="DBINT010PollingAdapterService_binding" type="tns:DBINT010PollingAdapterService_ptt">
<pc:inbound_binding/>
<operation name="receive">
<jca:operation
ActivationSpec="oracle.tip.adapter.db.DBActivationSpec"
DescriptorName="DBINT010PollingAdapterService.XxcmApdbInvoiceHeaders"
QueryName="DBINT010PollingAdapterService"
PollingStrategyName="LogicalDeletePollingStrategy"
MarkReadFieldName="STATUS"
MarkReadValue="READ${instance}"
MarkReservedValue="MINE${instance}"
MarkUnreadValue="NN"
SequencingFieldName="INVOICE_UNIQUE_ID"
MaxRaiseSize="1"
MaxTransactionSize="unlimited"
PollingInterval="60"
NumberOfThreads="1"
UseBatchDestroy="false"
ReturnSingleResultSet="false"
MappingsMetaDataURL="DBINT010PollingAdapterService_toplink_mappings.xml" />
<input/>
</operation>
</binding>
Regards
Edited by: OGROEF on Nov 5, 2008 9:07 PM
Edited by: OGROEF on Dec 15, 2008 4:21 PM

Answer 1

The following entry:
<MESSAGE>
<HEADER>
<TSTZ_ORIGINATING>2008-12-11T17:50:20.119+01:00</TSTZ_ORIGINATING>
<COMPONENT_ID>tip</COMPONENT_ID>
<MSG_TYPE TYPE="TRACE"></MSG_TYPE>
<MSG_LEVEL>16</MSG_LEVEL>
<HOST_ID>u514603.cmcdev.be</HOST_ID>
<HOST_NWADDR>10.151.70.3</HOST_NWADDR>
<MODULE_ID>esb.server.service.impl.inadapter</MODULE_ID>
<THREAD_ID>18</THREAD_ID>
<USER_ID>orasoad</USER_ID>
</HEADER>
<CORRELATION_DATA>
<EXEC_CONTEXT_ID><UNIQUE_ID>10.151.70.3:11323:1229014220014:8</UNIQUE_ID><SEQ>0</SEQ></EXEC_CONTEXT_ID>
</CORRELATION_DATA>
<PAYLOAD>
<MSG_TEXT>JCA: &lt;oracle.tip.adapter.db.TopLinkLogger log> SELECT UNIQUE_SUPPLIER_ID, SUPPLIER_NAME, SUPPLIER_NUMBER, NUMBER_TYPE, CM_SUPPLIER_TYPE, VAT_REGISTRATION_NUM, M_NUMBER, ADM_ID, OFB_PARTY_ID, CENTURY, LANGUAGE, ATTRIBUTE_CATEGORY, SPARE6, SPARE8, SPARE9, SPARE10, SPARE11, SPARE12, SPARE13, SPARE14, SPARE15, STATUS, ERROR_CODE, FILE_ID FROM XXCM.XXCM_AP_SUPPLIERS WHERE (STATUS = ?) ORDER BY UNIQUE_SUPPLIER_ID ASC FOR UPDATE NOWAIT
     bind => [MINE[undef:instance]]
</MSG_TEXT>
</PAYLOAD>
</MESSAGE>
can be found in $ORACLE_HOME/j2ee/oc4j_soa/log/oc4j_soa_default_group_1/oc4j/*.xml
Regards