2434325 - GetTraceFile method returns "Cannot open file"

During an upgrade (system upgrade or SP level upgrade), SUM stops with an error message similar to the below:

The following error has occurred during the execution of the current step:
Error getting sapstartsrv pid for instance $$ on host <server name>. Sapcontrol client could not perform action get trace file on instance $$. Return code condition success evaluated to false for process sapcontrol for action get trace file.

• $$ is the instance number

The SUM log files indicate that SUM executed the following command:

sapcontrol -nr $$ -host <server name> -user <SIDadm> <password> -prot NI_HTTP -function GetTraceFile

The command's output is:

<date> <time>
GetTraceFile
FAIL: Cannot open file

The same error occurs if the command is executed manually.

• Product independent
• Client/Server Technology
• SAP running on Windows servers

SUM, GetTraceFile, upgrade, SP upgrade, SP update , KBA , BC-CST-STS , Startup Service , BC-UPG-TLS-TLA , Upgrade tools for ABAP , BC-OP-NT , Windows , BC-UPG-TLS-TLJ , Upgrade tools for Java , Problem