The Issue

ARTIFACTORY: How to debug frontend service not running because of invalid joinKey

AuthorFullName__c
Paul Pan
articleNumber
000005238
ft:sourceType
Salesforce
FirstPublishedDate
2022-03-31T11:27:45Z
lastModifiedDate
2022-03-31
VersionNumber
3

Artifactory frontend will not start if an invalid joinKey is given. It may not give any helpful logging even if the logger has been set to Trace level in the system.yaml.

PS command shows frontend is starting:
UID        PID  PPID  C STIME TTY          TIME CMD
root         1     0  0 20:55 ?        00:00:00 /bin/bash /entrypoint-unified.sh
root        19     1  0 20:55 ?        00:00:00 /usr/sbin/sshd
root      3537     1 18 20:55 ?        00:02:03 /opt/jfrog/artifactory/app/router/bin/jf-router
root      3730     1  0 20:55 ?        00:00:06 /opt/jfrog/artifactory/app/metadata/bin/jf-metadata
root      3878     1  0 20:55 ?        00:00:00 /opt/jfrog/artifactory/app/event/bin/jf-event
root      4027     1  0 20:55 ?        00:00:04 /opt/jfrog/artifactory/app/third-party/node/bin/node /opt/jfrog/artifactory/app/frontend/bin/server/dist/startup.js /opt/jfrog/artifactory/app/frontend
root      4171     1  0 20:55 ?        00:00:00 /opt/jfrog/artifactory/app/observability/bin/jf-observability
root      4323     1  0 20:55 ?        00:00:01 /opt/jfrog/artifactory/app/integration/bin/jf-integration
root      4496     1 38 20:55 ?        00:04:11 /opt/jfrog/artifactory/app/third-party/java/bin/java -Djava.util.logging.config.file=/opt/jfrog/artifactory/app/artifactory/tomcat/conf/logging.properties -Djava.util.logging
root      4497     1  0 20:55 ?        00:00:00 tail -f /dev/null
root      4899    19  0 20:56 ?        00:00:00 sshd: root@pts/0
root      4934  4899  0 20:56 pts/0    00:00:00 -bash
root      8448    19  0 21:05 ?        00:00:00 sshd: root@pts/1
root      8492  8448  0 21:05 pts/1    00:00:00 -bash
root      9153  4027 99 21:06 ?        00:00:01 /opt/jfrog/artifactory/app/third-party/node/bin/node /opt/jfrog/artifactory/app/frontend/bin/server/dist/bundle.js
root      9164  8492  0 21:06 pts/1    00:00:00 ps -ef

thing is listening on port 8070:
tcp        0      0 127.0.0.1:8086          0.0.0.0:*               LISTEN      3730/jf-metadata
tcp        0      0 0.0.0.0:22              0.0.0.0:*               LISTEN      19/sshd
tcp        0      0 127.0.0.1:8091          0.0.0.0:*               LISTEN      4496/java
tcp        0      0 127.0.0.1:8061          0.0.0.0:*               LISTEN      3878/jf-event
tcp        0      0 127.0.0.1:8062          0.0.0.0:*               LISTEN      3878/jf-event
tcp        0      0 127.0.0.1:8036          0.0.0.0:*               LISTEN      4171/jf-observabili
tcp        0      0 127.0.0.1:8071          0.0.0.0:*               LISTEN      4323/jf-integration
tcp        0      0 127.0.0.1:8072          0.0.0.0:*               LISTEN      4323/jf-integration
tcp        0      0 127.0.0.1:8040          0.0.0.0:*               LISTEN      4496/java
tcp        0      0 0.0.0.0:8045            0.0.0.0:*               LISTEN      4496/java
tcp        0      0 127.0.0.1:8046          0.0.0.0:*               LISTEN      3537/jf-router
tcp        0      0 127.0.0.1:8047          0.0.0.0:*               LISTEN      3537/jf-router
tcp        0      0 127.0.0.1:8015          0.0.0.0:*               LISTEN      4496/java
tcp        0      0 127.0.0.1:8049          0.0.0.0:*               LISTEN      3537/jf-router
tcp        0      0 0.0.0.0:8081            0.0.0.0:*               LISTEN      4496/java
tcp        0      0 127.0.0.11:44211        0.0.0.0:*               LISTEN      -
tcp6       0      0 :::22                   :::*                    LISTEN      19/sshd
tcp6       0      0 :::8082                 :::*                    LISTEN      3537/jf-router