Spring Boot is an open-source Java-based extension of the Spring Framework designed to simplify the enterprise application development. Using actuator module, spring boot adds monitoring capability to the developed applications and provides access to the key performance indicators of JVM, threads, sessions, Hikari data sources, JDBC, error logs statistics and services. Moein monitoring system, in its application server category, monitors applications developed under the Spring Boot framework by connecting to their REST interface. Spring Boot key performance indicators are listed below.

1. JDBC Active Connections
2. JDBC Idle Connections
3. Hikari Active Connections
4. Hikari Idle Connections
5. Total Number of HTTP Server Requests
6. Number Of HTTP Server Requests
7. HTTP Server Request Rate
8. Number Of Successful HTTP Server Requests
9. Number Of Unsuccessful HTTP Server Requests
10. Rate Of Generated Logs
11. Rate Of Generated Error Logs
12. Rate Of Generated Warning Logs
13. Rate Of Generated Fatal Logs
14. Rate Of Generated Trace Logs
15. Hikari Connection Total Acquire Time
16. Hikari Connection Acquire Time
17. Hikari Pending Threads
18. Hikari Number of Timeout Connections
19. Hikari Connections Total Usage Time
20. Hikari Connections Usage Time
21. Tomcat Active Sessions
22. Tomcat Maximum Number of Sessions
23. Tomcat Session Maximum Alive Time
24. Tomcat Number of Created Sessions
25. Tomcat Number of Expired Sessions
26. Tomcat Number of Rejected Sessions
27. Number Of Buffers
28. Buffer Used Memory
29. Buffers Total Capacity
30. Old Generation Memory Size After Full GC
31. Max Size of Old Generation Memory Pool
32. GC Allocated Memory Rate
33. GC Promoted Memory Rate
34. GC Total Time
35. GC Time
36. Total Number of GCs
37. Number Of GCs
38. Successful HTTP Server Requests Rate
39. Unsuccessful HTTP Requests Rate
40. Number Of Requests with Error 500
41. Average Response Time of Successful Requests
42. Health
43. Unsuccessful HTTP Requests Percentage

JDBC:

1. Data Source Name
2. JDBC Active Connections
3. JDBC Idle Connections
4. Maximum Number of JDBC Connections
5. Minimum Number of JDBC Connections
6. Connection Pool Usage

Hikari Connection Pool:

1. Connection Pool Name
2. Hikari Active Connections
3. Hikari Idle Connections
4. Hikari Maximum Number of Connections
5. Total Number of Hikari Created Connections
6. Number Of Hikari Created Connections
7. Hikari Connection Total Acquire Time
8. Hikari Connection Acquire Time
9. Hikari Minimum Number of Connections
10. Hikari Pending Threads
11. Hikari Number of Timeout Connections
12. Hikari Connections Total Usage Time
13. Hikari Connections Usage Time

Services:

1. Name
2. Total Number of HTTP Server Requests
3. Number Of HTTP Server Requests
4. HTTP Server Request Rate
5. Number Of Successful HTTP Server Requests
6. Number Of Unsuccessful HTTP Server Requests
7. Successful HTTP Server Requests Rate
8. Unsuccessful HTTP Requests Rate
9. Number Of Requests with Error 500
10. Average Response Time of Successful Requests
11. Last Request Response Time
12. Unsuccessful HTTP Requests Percentage

JVM KPIs:

Host:

1. Operating System
2. Committed Virtual Memory
3. Total Swap Space
4. Free Swap Space Size
5. Used Swap Space
6. Swap Space Usage
7. Host Free Memory
8. Host Total Memory
9. Host Used Memory
10. Host Memory Used Percentage
11. CPU Time
12. Process CPU Usage
13. Host CPU Usage
14. Number Of Processors
15. Open File Descriptors
16. Maximum File Descriptors
17. Version

JVM:

1. Boot Class Path Supported
2. Host Name
3. VM Name
4. VM Vendor
5. VM Version
6. Library Path
7. Boot Class Path
8. JVM Uptime
9. Host Uptime
10. Class Path
11. Spec Name
12. Spec Vendor
13. Spec Version

Threads:

1. Daemon Thread Count
2. Peak Thread Count
3. Active Thread Count
4. Total Started Thread Count
5. Current Thread CPU Time
6. Current Thread User Time
7. Number Of TIMED_WAITING Threads
8. Number Of NEW Threads
9. Number Of RUNNABLE Threads
10. Number Of BLOCKED Threads
11. Number Of WAITING Threads
12. Number Of TERMINATED Threads

Memory:

1. Committed Heap Memory
2. Initial Heap Memory
3. Maximum Heap Memory
4. Used Heap Memory
5. Committed Non-Heap Memory
6. Initial Non-Heap Memory
7. Maximum Non-Heap Memory
8. Used Non-Heap Memory
9. Heap Memory Used Percentage
10. Non-Heap Memory Used Percentage

Java Classes:

1. Total Classes
2. Current Loaded Classes
3. Unloaded Classes

Garbage Collection:

1. Garbage Collection Count
2. Garbage Collection Rate
3. Garbage Collection Time
4. Average Garbage Collection Time

Communication Protocols:

• REST