Ferenc Gerlits created MINIFICPP-2787:
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Summary: The encryption of a blank Password property in
SmbConnectionControllerService causes errors on restart
Key: MINIFICPP-2787
URL: https://issues.apache.org/jira/browse/MINIFICPP-2787
Project: Apache NiFi MiNiFi C++
Issue Type: Bug
Reporter: Ferenc Gerlits
Steps to reproduce:
# Create a flow with an SmbConnectionControllerService, eg. ListSmb ->
FetchSmb -> PutFile. Leave both the Username and Password properties blank.
# Start minifi; the first time everything is fine.
# Restart minifi; after the second startup, you will see errors like this:
{noformat}
[2026-04-17 18:12:32.038]
[org::apache::nifi::minifi::core::controller::StandardControllerServiceNode]
[warning] Service 'SmbConnectionControllerService' failed to enable: Process
Schedule Operation: Either both a username and a password, or neither of them
should be provided.{noformat}
# The controller service will not be started. Any processors which depend on
the SmbConnectionControllerService will not be started, either.
I think this is because after the first startup, both properties will be read
as unset at first; then minifi will encrypt the (blank) Password property in
config.yml. After the second startup, the Username property will be read as
unset but the Password property will be read as set to the empty string; this
causes the error here:
{noformat}
if (password.has_value() != username.has_value())
throw Exception(PROCESS_SCHEDULE_EXCEPTION, "Either both a username and a
password, or neither of them should be provided.");{noformat}
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