Splunk Add-on for VMware: hydra gateway port 8008 will not start on DCN

[klowk]

Hi all,

the hydra gateway port 8008 will not get started on DCN. I found only each time this authentication error message in splunkd.log.

06-16-2023 16:19:35.890 +0200 ERROR ExecProcessor [23751 ExecProcessor] - message from "/opt/splunk/bin/python3.7 /opt/splunk/etc/apps/SA-Hydra/bin/bootstrap_hydra_gateway.py" Traceback (most recent call last):
06-16-2023 16:19:35.890 +0200 ERROR ExecProcessor [23751 ExecProcessor] - message from "/opt/splunk/bin/python3.7 /opt/splunk/etc/apps/SA-Hydra/bin/bootstrap_hydra_gateway.py" File "/opt/splunk/etc/apps/SA-Hydra/bin/bootstrap_hydra_gateway.py", line 26, in <module>
06-16-2023 16:19:35.890 +0200 ERROR ExecProcessor [23751 ExecProcessor] - message from "/opt/splunk/bin/python3.7 /opt/splunk/etc/apps/SA-Hydra/bin/bootstrap_hydra_gateway.py" port, service_log_level, access_log_level = get_gateway_config(session_key)
06-16-2023 16:19:35.890 +0200 ERROR ExecProcessor [23751 ExecProcessor] - message from "/opt/splunk/bin/python3.7 /opt/splunk/etc/apps/SA-Hydra/bin/bootstrap_hydra_gateway.py" File "/opt/splunk/etc/apps/SA-Hydra/bin/bootstrap_hydra_gateway.py", line 16, in get_gateway_config
06-16-2023 16:19:35.890 +0200 ERROR ExecProcessor [23751 ExecProcessor] - message from "/opt/splunk/bin/python3.7 /opt/splunk/etc/apps/SA-Hydra/bin/bootstrap_hydra_gateway.py" stanza = HydraGatewayStanza.from_name("gateway", "SA-Hydra", session_key=session_key)
06-16-2023 16:19:35.890 +0200 ERROR ExecProcessor [23751 ExecProcessor] - message from "/opt/splunk/bin/python3.7 /opt/splunk/etc/apps/SA-Hydra/bin/bootstrap_hydra_gateway.py" File "/opt/splunk/etc/apps/SA-Hydra/bin/hydra/models.py", line 610, in from_name
06-16-2023 16:19:35.890 +0200 ERROR ExecProcessor [23751 ExecProcessor] - message from "/opt/splunk/bin/python3.7 /opt/splunk/etc/apps/SA-Hydra/bin/bootstrap_hydra_gateway.py" host_path=host_path)
06-16-2023 16:19:35.890 +0200 ERROR ExecProcessor [23751 ExecProcessor] - message from "/opt/splunk/bin/python3.7 /opt/splunk/etc/apps/SA-Hydra/bin/bootstrap_hydra_gateway.py" File "/opt/splunk/lib/python3.7/site-packages/splunk/models/base.py", line 552, in get
06-16-2023 16:19:35.890 +0200 ERROR ExecProcessor [23751 ExecProcessor] - message from "/opt/splunk/bin/python3.7 /opt/splunk/etc/apps/SA-Hydra/bin/bootstrap_hydra_gateway.py" entity = self._get_entity(id, host_path=host_path)
06-16-2023 16:19:35.890 +0200 ERROR ExecProcessor [23751 ExecProcessor] - message from "/opt/splunk/bin/python3.7 /opt/splunk/etc/apps/SA-Hydra/bin/bootstrap_hydra_gateway.py" File "/opt/splunk/etc/apps/SA-Hydra/bin/hydra/models.py", line 339, in _get_entity
06-16-2023 16:19:35.890 +0200 ERROR ExecProcessor [23751 ExecProcessor] - message from "/opt/splunk/bin/python3.7 /opt/splunk/etc/apps/SA-Hydra/bin/bootstrap_hydra_gateway.py" splunk.entity.getEntity(self.model.resource, None, sessionKey=self.sessionKey, uri=mid, hostPath=host_path))
06-16-2023 16:19:35.890 +0200 ERROR ExecProcessor [23751 ExecProcessor] - message from "/opt/splunk/bin/python3.7 /opt/splunk/etc/apps/SA-Hydra/bin/bootstrap_hydra_gateway.py" File "/opt/splunk/lib/python3.7/site-packages/splunk/entity.py", line 277, in getEntity
06-16-2023 16:19:35.890 +0200 ERROR ExecProcessor [23751 ExecProcessor] - message from "/opt/splunk/bin/python3.7 /opt/splunk/etc/apps/SA-Hydra/bin/bootstrap_hydra_gateway.py" serverResponse, serverContent = rest.simpleRequest(uri, getargs=kwargs, sessionKey=sessionKey, raiseAllErrors=True)
06-16-2023 16:19:35.890 +0200 ERROR ExecProcessor [23751 ExecProcessor] - message from "/opt/splunk/bin/python3.7 /opt/splunk/etc/apps/SA-Hydra/bin/bootstrap_hydra_gateway.py" File "/opt/splunk/lib/python3.7/site-packages/splunk/rest/__init__.py", line 553, in simpleRequest
06-16-2023 16:19:35.890 +0200 ERROR ExecProcessor [23751 ExecProcessor] - message from "/opt/splunk/bin/python3.7 /opt/splunk/etc/apps/SA-Hydra/bin/bootstrap_hydra_gateway.py" raise splunk.AuthenticationFailed
06-16-2023 16:19:35.890 +0200 ERROR ExecProcessor [23751 ExecProcessor] - message from "/opt/splunk/bin/python3.7 /opt/splunk/etc/apps/SA-Hydra/bin/bootstrap_hydra_gateway.py" splunk.AuthenticationFailed: [HTTP 401] Client is not authenticated

Does someone have any idea to solve this issue?

Thanks in advance
Kathrin