Hospital Management System – Needs W.r.t Application Stability
- The architecture of management System is as follows
- Your organization
qtinfosystemsis maintaing this system for 100 hospitals - Now lets try to figure out some failures
- Network failures
- Hardware failures
- Application failures
- You are assigned to figure out failures. To solve this issues we will figure out a pro-active approach
- For every 1 minute
- check if every server is responding or not
- Check if application is responding or not
- Alert if the servers/applications are not responding
- For every 1 minute
- Log is a record which specifies some activity done
- Operating systems have logs, we might need to finetune it
- Windows => event viewer
- Linux => Syslog
- Applications also log, try to understand about failure from there
- Operating systems have logs, we might need to finetune it
- Tracing is an approach to figure out the flow in your system
- Every system has resource utilization information
- cpu
- memory
- disk
- network
- Metrics are values which represent some information about system/application with value as number with time dimension
- QT Info System needs a Monitoring Solution.
- Observability is what QT Info System needs i.e. they need to get
- logs
- metrics
- traces
- MTTR (Mean Time To Recover) this refers to average time taken by your organization to recover from failures.
- MTTF (Mean Time To Fail): This refers to average time during the certain to get an failure in your system
- SLA (Service Level Agreement): This is an agreement between service provider and customer w.r.t to availability and other important metrics
