HySDS UI has a minimal dashboard in Kibana to display current status for its services (supervisor / systemd)

Kibana is running on https://<MOZART_IP_ADDRESS>/metrics/app/home

Accessing the HySDS Cluster Health page

HySDS Cluster health dashboard

The table above [Fig 4] shows the status of systemd services (Elasticsearch, redis, rabbitmq, etc.), check the systemd.SubState & systemd.ActiveStateTimestamp columns for the current status and last updated.

The table above [Fig 5] shows the status of supervisord services (celery workers, rest APIs, logstash, etc.), check the supervisord.status & supervisord.uptime columns for the current status and uptime.

Cluster Health backend

There are 2 supervisord processes running; they check for:

• supervisord services

  • celery workers:

    • job workers (factotum)

    • user rules

    • orchestrator

  • Rest APIs (grq2, mozart, pele, etc.)

  • Logstash

  • docker registry

  • sdswatch

  • Kibana

  • Filebeats

  • worker timeouts

• systemd services

  • Elasticsearch (grq, mozart & metrics)

  • Redis (mozart & metrics)

  • Rabbitmq

  • httpd (proxy)

The script(s) will periodically check for service statuses every minute

[program:watch_supervisord_services]
directory={{ OPS_HOME }}
command={{ OPS_HOME }}/mozart/bin/watch_supervisord_services.py --host mozart
process_name=%(program_name)s
priority=999
numprocs=1
numprocs_start=0
redirect_stderr=true
startretries=0
stdout_logfile=%(here)s/../log/%(program_name)s.fulldict.sdswatch.log
stdout_logfile_maxbytes=100MB
stdout_logfile_backups=10
startsecs=10

[program:watch_systemd_services]
directory={{ OPS_HOME }}
command={{ OPS_HOME }}/mozart/bin/watch_systemd_services.py --host mozart -s elasticsearch redis rabbitmq-server httpd
process_name=%(program_name)s
priority=999
numprocs=1
numprocs_start=0
redirect_stderr=true
startretries=0
stdout_logfile=%(here)s/../log/%(program_name)s.fulldict.sdswatch.log
stdout_logfile_maxbytes=100MB
stdout_logfile_backups=10
startsecs=10

Future plans for the Cluster Health page

The current page is very bare boned, but some ideas for the future are:

• Color-coating the status column in the table with

  • RED: service is down

  • GREEN: service is running

  • YELLOW: Service is starting

• Integration with Cloudwatch logs (if possible) or just a simple link

• Graphs & visualization

• Potentially moving it to a proper frontend/React application with better UI/UX

  • won't be limited by Kibana