Apache HTTP Server
Table 1-2 Supported Configuration Metrics for Apache HTTP Server
| Metric Group | Name | Unit | Default Collection Frequency | Description |
|---|---|---|---|---|
| Virtual Hosts | IP Address | NA | 1 Day | IP address of the Virtual Host |
| Virtual Hosts | Port | NA | 1 Day | Port of the Virtual Host |
| Virtual Hosts | Server Name | NA | 1 Day | Server Name of the Virtual Host |
| Virtual Hosts | Server Type | NA | 1 Day | Server Type of the Virtual Host |
| Listen Addresses | IP Address | NA | 1 Day | IP address of the Listening Server |
| Listen Addresses | Port | NA | 1 Day | Port of the Listening Server |
| Listen Addresses | Protocol | NA | 1 Day | Connection protocol for the Listening Server |
| Configuration Overview | Maximum Clients | NA | 1 Day | Maximum number of server processes allowed to run at one time |
| Configuration Overview | Maximum Requests Per Child | NA | 1 Day | Total number of requests each child server process serves before the child dies |
| Configuration Overview | Maximum Spare Servers | NA | 1 Day | Maximum number of Spare Server Processes |
| Configuration Overview | Minimum Spare Servers | NA | 1 Day | Minimum number of Spare Server Processes |
| Configuration Overview | Start Servers | NA | 1 Day | Number of server processes created upon startup |
| Configuration Overview | Timeout | sec | 1 Day | Amount of time the server waits for receipts and transmissions during communications |
| Configuration Overview | Listen Backlog | NA | 1 Day | Maximum length of the queue of pending connection |
| Configuration Overview | Keep Alive | NA | 1 Day | Indicates if server allows more than one request per connection (ON) or not (OFF) |
| Configuration Overview | Maximum Keep Alive Requests | NA | 1 Day | Maximum number of requests allowed per persistent connection |
| Configuration Overview | Keep Alive Timeout | sec | 1 Day | Wait time for the server after serving a request |
| Configuration Overview | SSL Session Cache Timeout | sec | 1 Day | Timeout for the information stored in the global/inter-process SSL Session Cache |
| Configuration Overview | Hostname Lookups | NA | 1 Day | Indicates whether DNS Lookups are enabled on client IP address (ON) or not (OFF) |
| Configuration Overview | Log Level | NA | 1 Day | Level Detail of the Error Logs ( emerg, alert, crit, error, warn, notice, info or debug ) |
Table 1-3 Supported Configuration Metrics for Hosted Target
| Metric Group | Name | Unit | Description |
|---|---|---|---|
| Resource Allocation | Total CPUs | N/A | Total number of CPUs allocated or available to the entity |
| Resource Allocation | Total Memory | GB | Total amount of usable Physical RAM allocated or available to the entity |
Table 1-4 Supported Status and Performance Metrics for Apache HTTP Server
| Metric Group | Category | Name | Unit | Default Collection Frequency | Description |
|---|---|---|---|---|---|
| Performance Overview | Load | Data Served Rate | KB/sec | 5 Min | Size of data served per second |
| Performance Overview | Load | Busy Workers Utilization | % | 5 Min | Percentage of busy workers |
| Performance Overview | Load | Idle Workers | NA | 5 Min | Total number of Idle Workers |
| Performance Overview | Load | Busy Workers | NA | 5 Min | Total number of Busy Workers |
| HTTP Connections | Load | HTTP Connection Rate | conns/sec | 5 Min | Total number of HTTP Connections per second |
Table 1-5 Supported Status and Performance of Web Application Server
| Metric Group | Category | Name | Unit | Default Collection Frequency | Description |
|---|---|---|---|---|---|
| Web Requests | Load | Web Request Processing Time | ms | 5 Min | Average processing time per web request since the last collection |
| Web Requests | Load | Web Request Rate | ops/min | 5 Min | Number of web requests per minute since the last collection |
| Web Application Component | Load | Open HTTP Sessions | NA | . | Current total number of open http sessions for all the web applications on this web application server. |
Table 1-6 Supported Status and Performance Metrics for Hosted Target
| Metric Group | Category | Name | Unit | Description |
|---|---|---|---|---|
| CPU | Utilization | CPU Usage | sec | All CPUs usage during the interval |
| CPU | N/A | CPU Utilization | % | Percentage of CPU that was utilized |
| CPU | N/A | Interval | sec | Interval of metric collection |
| Memory | Load | Memory Usage | GB | Memory used in GB |
| Memory | Utilization | Memory Utilization | % | Percentage of memory that is utilized |
| Memory | N/A | Interval | sec | Interval of metric collection |
Table 1-7 Status and Performance Metrics for Generic Target
| Metric Group | Category | Name | Unit | Description |
|---|---|---|---|---|
| Response | Availability | Status | N/A | Status of the target |