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Jan 16, 2023 at 03:38 PM

disp+work, Dispatcher, GRAY, Stopped - SAP S/4HANA 2021 FPS02 Fully-Activated Appliance

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I have spawn up an instance of SAP S/4HANA 2021 FPS02, Fully-Activated Appliance from SAP Internal CAL in AWS in mid-September. This instance is only activated for business hour by a weekly schedule in CAL console. It was working fine until after the New Year break. Starting Jan 11, users reported not able to connect via SAPGui. Upon checking with sapcontrol. Observed that Dispatcher gone into a Stopped state after every CAL activation. There's no change has been made since September. I wonder what might be causing this issue.

Under sapcontrol, nr 01 appears to be healthy. Here's the output of nr 00:

sid-hdb-s4h:s4hadm 52> sapcontrol -nr 00 -function GetProcessList

16.01.2023 15:07:13
GetProcessList
OK
name, description, dispstatus, textstatus, starttime, elapsedtime, pid
disp+work, Dispatcher, GRAY, Stopped, , , 10074
igswd_mt, IGS Watchdog, GREEN, Running, 2023 01 16 13:45:03, 1:22:10, 10075

Here's the dev_disp file grep output with string 'server'

sid-hdb-s4h:s4hadm 55> grep server dev_disp
use internal message server connection to port 3901
DpIPCInit2: start server >vhcals4hci_S4H_00                       <
rdisp/server_resource_limit: suspend_dispatching=78.000000 %/warn=90.000000 %/reject=99.000000 %
DpLogServerStatus: status = YELLOW, reason = Server not attached to message server
DpUpdateStatusFileWith: state=YELLOW, reason=Server not attached to message server
rdisp/vanished_server_timeout:	short/long = 180/960
DpMBufSetState: MBUF state LOADING, 1. server buffer modification
etd_event_sender/server: HOST=, PORT=0, SEND_METHOD=DATAGRAM
DpMBufSetState: MBUF state ACTIVE, 4. server buffer modification
DpMsgProcess: 1 server in MBUF
DpMBufReset: state = MBUF_PREPARED, 5. server buffer modification
DpHalt: shutdown server >vhcals4hci_S4H_00                       < (normal)
DpModState: change server state from STARTING to STOP
DpHalt: detach from message server
MsIDetach: send logout to msg_server (vhcals4hcs / 3901)
DpMBufSetState: MBUF state OFF, 6. server buffer modification
DpLogServerStatus: status = YELLOW, reason = Server not attached to message server
DpUpdateStatusFileWith: state=YELLOW, reason=Server not attached to message server
DpHalt: *** shutdown completed - server stopped ***