2065447 - inboundRA does not start after increasing MaxReaderThreadCount

You have increased parameter MaxReaderThreadCount in the inboundRA resource adapter in order to avoid issue like the following in IDoc_AAE adapter:

com.sap.conn.jco.JCoException: (104) JCO_ERROR_SYSTEM_FAILURE: Commit fault: ASJ.ejb.005043 (Failed in component: sap.com/com.sap.aii.adapter.idoc.app, BC-XI-CON-IDO) Exception raised from invocation of public void com.sap.aii.af.idoc.inbound.IDocReceiverBean.onCommit(java.lang.String) method on bean instance com.sap.aii.af.idoc.inbound.IDocReceiverBean@1bfafc25for bean sap.com/com.sap.aii.adapter.idoc.app*xml|com.sap.aii.adapter.idoc.ejb.jar*xml|IDocReceiverBean in application sap.com/com.sap.aii.adapter.idoc.app.; nested exception is: com.sap.conn.idoc.IDocRuntimeException (raised by system briu1357a|X6PCLNT010_AAE)
at com.sap.conn.jco.rt.MiddlewareJavaRfc.generateJCoException(MiddlewareJavaRfc.java:678)
at com.sap.conn.jco.rt.MiddlewareJavaRfc$JavaRfcServer.listen(MiddlewareJavaRfc.java:2513)
at com.sap.conn.jco.rt.DefaultServerWorker.dispatch(DefaultServerWorker.java:254)
at com.sap.conn.jco.rt.DefaultServerWorker.loop(DefaultServerWorker.java:345)
at com.sap.conn.jco.rt.DefaultServerWorker.run(DefaultServerWorker.java:232)
at com.sap.mw.jco.jra.JRA$ReaderThread.run(JRA.java:8628)
at com.sap.engine.services.connector.jca15.work.TaskImpl.run(TaskImpl.java:245)
at com.sap.engine.core.thread.execution.Executable.run(Executable.java:122)
at com.sap.engine.core.thread.execution.Executable.run(Executable.java:101)
at com.sap.engine.core.thread.execution.CentralExecutor$SingleThread.run(CentralExecutor.java:328)

After that the inboundRA resource adapter does not start even after full system restart and the following error like the following can be found:

"Timeout is over. Ra is blocking during start"
or
"Timeout is over. Ra is blocking during stop"...
or
"Couldn't start ReaderThreads in the ResourceAdapter because of  timeout"

• SAP NetWeaver 7.3
• SAP enhancement package 1 for SAP NetWeaver 7.3
• SAP NetWeaver 7.4
• SAP NetWeaver 7.5

inboundRA, maxReaderThreadCount, start, resource adapter, JCO_ERROR_SYSTEM_FAILURE, Process Integration 7.30, PI 7.30, Process Integration 7.31, PI 7.31, Process Orchestration 7.4, PI 7.4, PO 7.4, Process Orchestration 7.5, PI 7.5, PO 7.5, XI, AEX, cache , KBA , BC-XI-CON-IDO , Idoc Adapter J2EE , Problem