3699903 - Cannot establish HTTP connection to Unix domain socket '/tmp/.sapstream50013' during SAP HANA upgrade

• SAP HANA database upgrade fails with the following error in the hdblcm.log:

19:12:23.482 - INFO: -----------------------------------------------------------
19:12:23.482 - INFO: Starting instances...
19:12:23.482 - INFO: -----------------------------------------------------------
19:12:23.485 - INFO:   Starting master host 'hostname' (worker), parameters: instance number = 00, user = SIDadm
19:12:23.486 - INFO:     Taking trace directory snapshot of '/usr/sap/SID/HDB00/hostname/trace'
19:12:23.490 - INFO:     Taking trace directory snapshot of '/usr/sap/SID/HDB00/hostname/trace/DB_SID'
19:12:23.493 - ERR :     Cannot establish http connection to unix domain socket '/tmp/.sapstream50013' (No such file or directory)
19:12:23.493 - INFO:     Sending HTTP request, function = Start, maximum number of retries = 3
19:12:23.494 - ERR :     Cannot establish http connection to unix domain socket '/tmp/.sapstream50013' (No such file or directory)
19:12:23.494 - ERR :   Start instance 00 on master host 'hostname' (worker) failed.
19:12:23.494 - INFO:   Messages from trace files of database 'SYSTEMDB'
19:12:23.498 - INFO:   Messages from trace files of database 'SID'
19:12:23.501 - ERR :   Check the log file for SAP HANA Database error messages
...
19:14:54.353 - INFO: Summary of critical errors
19:14:54.319 - ERR :   Update of SAP HANA Database components failed.
19:12:23.494 - ERR :     Start instance 00 on master host 'hostname' (worker) failed.
19:12:23.494 - ERR :       Cannot establish http connection to unix domain socket '/tmp/.sapstream50013' (No such file or directory)
19:12:23.501 - ERR :     Check the log file for SAP HANA Database error messages

• Disabling SELinux as per KBAs 3390375 and 3439076 does not resolve the error.
• The /var/log/messages file contains the following error messages:
  

  Dec 31 20:23:28 hostname systemd[1]: systemd-fsck@dev-mapper-sapvg\x2dlv_usr_sap.service: Job systemd-fsck@dev-mapper-sapvg\x2dlv_usr_sap.service/start failed with result 'dependency'.
  Dec 31 20:23:28 hostname systemd[1]: dev-mapper-sapvg\x2dlv_usr_sap.device: Job dev-mapper-sapvg\x2dlv_usr_sap.device/start failed with result 'timeout'.

• The sapsysinfo file contains the following error messages:
  

  Dec 31 20:19:28 hostname SAPSID_00[1686312]: Triggering SAP Service SAPSID_00 start via systemd failed
  Dec 31 20:19:28 hostname systemd[1]: Dependency failed for SAP Instance SAPSID_00.
  Dec 31 20:19:28 hostname systemd[1]: SAPSID_00.service: Job SAPSID_00.service/start failed with result 'dependency'.

• The sapsysinfo properties of SAPSID_00.service contain the following dependencies:

  After=usr.mount SAP.slice sysinit.target -.mount remote-fs.target systemd-journald.socket usr-sap.mount basic.target time-sync.target

  However, the output of the df command only contains /usr, rather than /usr/sap:

  [root@hostname system]# df -h
  Filesystem                             Size  Used Avail Use% Mounted on
  devtmpfs                               4.0M     0  4.0M   0% /dev
  tmpfs                                  190G     0  190G   0% /dev/shm
  tmpfs                                   51G  162M   51G   1% /run
  /dev/mapper/rootvg-rootlv              7.8G  813M  6.6G  11% /
  /dev/mapper/rootvg-usrlv               9.7G  4.6G  4.7G  50% /usr

 "Image/data in this KBA is from SAP internal systems, sample data, or demo systems. Any resemblance to real data is purely coincidental."

• SAP HANA, platform edition 2.0
• RedHat Linux

SAP HANA upgrade, unix domain socket error, '/tmp/.sapstream50013', service start failed, SELinux status,RedHat, Linux, /usr/sap , KBA , HAN-LM-UPG-DB , Upgrade of HANA Database , BC-OP-LNX , Linux , Problem