2473663 - SUM sapcontrol OSExecute function fails in step DELETE-REMOTE-BOOTSTRAP-JARS/WILY-INTROSCOPE-CONFIGURATION-UPDATE with " OSExecute FAIL: NIECONN_REFUSED (Connection refused)"

During upgrade /update , Software update manager (SUM) shows error in step DELETE-REMOTE-BOOTSTRAP-JARS while executing sapcontrol cmd with OSExecute function return " OSExecute FAIL: NIECONN_REFUSED (Connection refused), NiRawConnect failed in plugin_fopen()"

you can notice the same in step WILY-INTROSCOPE-CONFIGURATION-UPDATE

--------/usr/sap/<SID>/SUM/sdt/log/SUM/DELETE-REMOTE-BOOTSTRAP-JARS_29.LOG--------

May 11, 2017 9:25:34 AM [Info ]: Major sap jvm version: 6
May 11, 2017 9:25:34 AM [Info ]: Process ID 1550, name sapcontrol has been started.
May 11, 2017 9:25:34 AM [Info ]: Command line: /sapmnt/<SID>/exe/uc/linuxx86_64/sapcontrol -nr 22 -host <dialoginstance1> -user <SID>adm <SecureField> -prot NI_HTTPS -function OSExecute /usr/sap/<SID>/SYS/exe/jvm/linuxx86_64/sapjvm_6.1.101/sapjvm_6/bin/java -cp /usr/sap/<SID>/SYS/global/sdtremote/sdt_trace.jar:/usr/sap/<SID>/SYS/global/sdtremote/sdt_trace_base.jar:/usr/sap/<SID>/SYS/global/sdtremote/sdt_util.jar:/usr/sap/<SID>/SYS/global/sdtremote/sdt_tools.jar:/usr/sap/<SID>/SYS/global/sdtremote/sap.com~tc~sec~csi.jar com.sap.sdt.tools.remote.SdtRemoteOperationsExecutor deleteBootstrapJars /usr/sap/<SID>/D22 SWITCH_UPGRADE 0 300
May 11, 2017 9:25:34 AM [Info ]: Standard out: /usr/sap/<SID>/SUM/sdt/tmp/SAPCONTROL_OSEXECUTE_22_29.OUT

----SAPCONTROL_OSEXECUTE_22_44.OUT------

11.05.2017 15:12:41
OSExecute
FAIL: NIECONN_REFUSED (Connection refused), NiRawConnect failed in plugin_fopen()

For example :

Checking further logs to see what instance was detected initially by SUM tool, the log INITIALIZE-COMMON-DETECT-MODULE-DETERMINE-PROFILES_01.LOG show results of sapcontrl function GetSystemInstanceList 

Seeing this you can understand that instance 22 on host <dialoginstance1> is not able to connect via sapcontrol cmd

-----/usr/sap/<SID>/SUM/sdt/log/SUM/INITIALIZE-COMMON-DETECT-MODULE-DETERMINE-PROFILES_01.LOG----'

May 3, 2017 7:21:46 PM [Info ]: Command line: /usr/sap/<SID>/DVEBMGS21/exe/sapcontrol -nr 21 -host <Primaryinstance> -user <SID>adm <SecureField> -prot NI_HTTPS -function GetSystemInstanceList 150
May 3, 2017 7:21:46 PM [Info ]: Standard out: /usr/sap/<SID>/SUM/sdt/tmp/SAPCONTROL_GETSYSTEMINSTANCELIST_21_04.OUT
May 3, 2017 7:21:47 PM [Info ]: Process ID 91 has been started.
May 3, 2017 7:21:47 PM [Info ]: Waiting for process ID 91, name sapcontrol to finish.
May 3, 2017 7:21:47 PM [Info ]: Process ID 91, name sapcontrol has been finished, exit code 0.
May 3, 2017 7:21:47 PM [Info ]: Correctly detected instance: 22 on host <dialoginstance1>
May 3, 2017 7:21:47 PM [Info ]: Correctly detected instance: 23 on host <dialoginstance2>
May 3, 2017 7:21:47 PM [Info ]: Correctly detected instance: 2 on host <SCSinstance>
May 3, 2017 7:21:47 PM [Info ]: Correctly detected instance: 20 on host <ASCSinstance>
May 3, 2017 7:21:47 PM [Info ]: Correctly detected instance: 21 on host <Primaryinstance>
May 3, 2017 7:21:47 PM [Info ]: Process ID 92, name sapcontrol has been started.

..
..

May 3, 2017 7:21:48 PM [Info ]: Instances [hostName: <dialoginstance1>|instanceNumber: 22|state: null|featuresList: ABAP|J2EE|GATEWAY|ICMAN|IGS|instanceName: D22|profilePath: /usr/sap/<SID>/SYS/profile/<SID>_D22_<dialoginstance1>|sapLocalHost: <dialoginstance1>|startProfile: /usr/sap/<SID>/SYS/profile/START_D22_<dialoginstance1>|osUserName: <SID>adm|isSCS: false|isInitiallyConnectedInstance: false|isCentralInstance: false
, hostName: <dialoginstance2>|instanceNumber: 23|state: null|featuresList: ABAP|J2EE|GATEWAY|ICMAN|IGS|instanceName: D23|profilePath: /usr/sap/<SID>/SYS/profile/<SID>_D23_<dialoginstance2>|sapLocalHost: <dialoginstance2>|startProfile: /usr/sap/<SID>/SYS/profile/START_D23_<dialoginstance2>|osUserName: <SID>adm|isSCS: false|isInitiallyConnectedInstance: false|isCentralInstance: false
, hostName: <SCSinstance>|instanceNumber: 2|state: null|featuresList: MESSAGESERVER|ENQUE|instanceName: SCS02|profilePath: /usr/sap/<SID>/SYS/profile/<SID>_SCS02_<SCSinstance>|sapLocalHost: <SCSinstance>|startProfile: /usr/sap/<SID>/SYS/profile/START_SCS02_<SCSinstance>|osUserName: <SID>adm|isSCS: true|isInitiallyConnectedInstance: false|isCentralInstance: false
, hostName: <ASCSinstance>|instanceNumber: 20|state: null|featuresList: MESSAGESERVER|ENQUE|instanceName: ASCS20|profilePath: /usr/sap/<SID>/SYS/profile/<SID>_ASCS20_<ASCSinstance>|sapLocalHost: <ASCSinstance>|startProfile: /usr/sap/<SID>/SYS/profile/START_ASCS20_<ASCSinstance>|osUserName: <SID>adm|isSCS: false|isInitiallyConnectedInstance: false|isCentralInstance: false
, hostName: <Primaryinstance>|instanceNumber: 21|state: null|featuresList: ABAP|J2EE|GATEWAY|ICMAN|IGS|instanceName: DVEBMGS21|profilePath: /usr/sap/<SID>/SYS/profile/<SID>_DVEBMGS21_<Primaryinstance>|sapLocalHost: <Primaryinstance>|startProfile: /usr/sap/<SID>/SYS/profile/START_DVEBMGS21_<Primaryinstance>|osUserName: <SID>adm|isSCS: false|isInitiallyConnectedInstance: true|isCentralInstance: true
]

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OSExecute, SUM , software update manager ,service/protectedwebmethods ,WILY-INTROSCOPE-CONFIGURATION-UPDATE , KBA , BC-UPG-TLS-TLJ , Upgrade tools for Java , BC-CST-STS , Startup Service , Problem