3137484 - HANA Studio cannot connect with HANA Database due to sapcontrol error.

1. Below error occurs when you open Configure system replication from HANA studio.

'sapstartsrv' service not started, SAPControl request failed: Connection timed out: connect: <hostname of HANA Database instance>:5<NR>13

(NR represents the instance number of HANA instance)

2. Error "Error during initialization of the system replication wizard See log viewer for details" appears when open "Configure system replication..." from HANA studio

The Error log shows below error:

org.eclipse.ui
Error
Thu Dec 23 14:50:08 IST 2021
Unhandled event loop exception

org.eclipse.e4.core.di.InjectionException: java.lang.NullPointerException: while trying to invoke the method org.eclipse.core.runtime.IStatus.getException() of a null object loaded from local variable 'status

3. After adding the SYSTEMDB in HANA Studio, the errors are presented when attempting to open it from the systems pane :

SAPControl request failed

com.sap.ndb.studio.sapcontrol.SAPControlException: SAPControl request failed
 at com.sap.ndb.studio.sapcontrol.operations.SAPControlOperation.execute(SAPControlOperation.java:124)
 at com.sap.ndb.studio.sapcontrol.SAPControl.getInstanceProperties(SAPControl.java:512)
 at com.sap.ndb.studio.sapcontrol.SAPControl.collectProperties(SAPControl.java:588)
 at com.sap.ndb.studio.sapcontrol.SAPControl.open(SAPControl.java:377)
 at com.sap.ndb.studio.sapcontrol.SAPControlManager.getSAPControl(SAPControlManager.java:139)
 at com.sap.ndb.studio.sapcontrol.SAPControlManager.getSAPControl(SAPControlManager.java:86)
 at com.sap.ndb.studio.sapcontrol.SAPControlManager.needCredentials(SAPControlManager.java:59)
 at com.sap.ndb.studio.navigator.operations.SAPSystemObjectUpdate.executeTrySAPControl(SAPSystemObjectUpdate.java:145)
 at com.sap.ndb.studio.navigator.operations.SAPSystemObjectUpdate.execute(SAPSystemObjectUpdate.java:94)
 at com.sap.ndb.studio.navigator.operations.UpdateSAPSystemOperation.execute(UpdateSAPSystemOperation.java:73)
 at com.sap.ndb.studio.datamodel.controler.DataModelOperationJob.run(DataModelOperationJob.java:70)
 at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63)
Caused by: com.sun.xml.messaging.saaj.SOAPExceptionImpl: com.sun.xml.messaging.saaj.SOAPExceptionImpl: Bad response: (502Bad Gateway
 at com.sun.xml.messaging.saaj.client.p2p.HttpSOAPConnection.call(HttpSOAPConnection.java:164)
 at com.sap.ndb.studio.sapcontrol.operations.SAPControlOperation.execute(SAPControlOperation.java:100)
 ... 11 more
Caused by: com.sun.xml.messaging.saaj.SOAPExceptionImpl: Bad response: (502Bad Gateway
 at com.sun.xml.messaging.saaj.client.p2p.HttpSOAPConnection.post(HttpSOAPConnection.java:279)
 at com.sun.xml.messaging.saaj.client.p2p.HttpSOAPConnection.call(HttpSOAPConnection.java:160)
 ... 12 more

SAP HANA Platform Edition 2.0

KBA , BC-CST-STS , Startup Service , HAN-STD-ADM-DBA , SAP HANA Studio (Eclipse) Admin Tooling , HAN-DB , SAP HANA Database , Problem