Process Monitoring
Viewing Process Monitoring
Process monitoring is used to monitor active processes on a host. By default, the Agent collects CPU usage, memory usage, and the number of opened files of the active processes. If you have customized process monitoring, the number of processes containing keywords is also monitored.
The Agent collects process CPU usages every minute and displays the top 5 processes, ranked by the CPU usage over the last 24 hours.
To view the process monitoring information, install the Agent.
Adding Process Monitoring
Process monitoring is used to monitor active processes on a host. By default, the Agent collects CPU usage, memory usage, and the number of opened files of the active processes. Customized process monitoring can collect the number of key processes and obtain the status of key processes at any time.
Suppose that the following processes are running on a server:
/usr/bin/java /usr/bin/ntpd /telescope /usr/bin/python
Three keywords are configured, and the collection results are as follows:
- Key word: Java, number of processes: 1
- Key word: telescope, number of processes: 1
- Key word: /usr/bin, number of processes: 3
Add specified processes.
- Log in to the management console.
- Click Service List in the upper left corner and select Cloud Eye.
- In the navigation pane, choose Server Monitoring.
- On the Server Monitoring page, locate the ECS and click View Metric to go to the OS Monitoring page.
- Select the Process Monitoring tab.
- Click Add Process under Custom Process Monitoring. On the Add Process page, enter a process name or keyword.
Figure 1 Add Process
You do not need to configure the Processes column. After you set the process name, the system will update the number of matched processes.
After the configuration is complete, you can view the number of custom processes you added in the Custom Process Monitoring area.
Viewing Custom Process Monitoring
- Log in to the management console.
- Click Service List in the upper left corner and select Cloud Eye.
- In the navigation pane, choose Server Monitoring.
- On the Server Monitoring page, locate the ECS and click View Metric to go to the OS Monitoring page.
- Select the Process Monitoring tab.
- Under Custom Process Monitoring, locate a custom process and click on the left of the process name.
- Locate the row that contains the process ID and click View Details in the Operation column. On the View Metric drawer that is slid out, view the CPU usage, memory usage, and number of opened files of the current process. For details about the three metrics, see Table 1. Above the graphs, Time Range can be 1h, 3h, 12h, 1d, or 7d. You can also customize the time range to view historical monitoring data for any period during the last year.
- In the Custom Processes area, details of custom processes running on the host is displayed.
Table 1 Process Monitoring metrics Metric
Description
Value Range
Collection (Linux)
Collection (Windows)
CPU Usage
CPU consumed by a process
pHashId (process name and process ID) is the value of md5.
0-1 x Number of CPU cores
Monitored object: ECS or BMS
Check the metric value changes in file /proc/pid/stat.
Monitored object: ECS or BMS
Call the API GetProcessTimes to obtain the CPU usage of the process.
Memory Usage
Memory consumed by a process
pHashId (process name and process ID) is the value of md5.
0 to 1
Monitored object: ECS or BMS
Memory Usage = RSS*PAGESIZE/MemTotal
RSS: Obtain its value by checking the second column of file /proc/pid/statm.
PAGESIZE: Obtain its value by running the getconf PAGESIZE command.
MemTotal: Obtain its value by checking file /proc/meminfo.
Monitored object: ECS or BMS
- Invoke Windows API procGlobalMemoryStatusEx to obtain the total memory size.
- Invoke GetProcessMemoryInfo to obtain the used memory size.
- Use the used memory size to divide the total memory size to get the memory usage.
Open Files
The number of opened files consumed by the process
pHashId (process name and process ID) is the value of md5.
≥ 0
Monitored object: ECS or BMS
You can run the ls -l /proc/pid/fd command to view the number.
Not supported
Enabling Alarm Notifications for Custom Process Monitoring
You can configure alarm notifications. When the number of processes decreases or increases, Cloud Eye will notify you immediately.
To enable alarm notifications for custom process monitoring, perform the following steps:
- Log in to the management console.
- Click Service List in the upper left corner and select Cloud Eye.
- In the navigation pane, choose Server Monitoring.
- On the Server Monitoring page, locate the ECS and click View Metric to go to the OS Monitoring page.
- Select the Process Monitoring tab.
- On the Custom Process Monitoring page, create an alarm rule for a process by using either of the following method:
- Locate a process and click Create Alarm Rule in the Operation column.
- Click the icon next to the process name and click Create Alarm Rule in the row where the process ID is located.
- Configure basic information about the alarm rule. For details, see Creating an Alarm Rule.
Querying the System Processes
After the Agent is installed, you can check system processes on Cloud Eye.
To query the number of processes, perform the following steps:
- Log in to the management console.
- Click Service List in the upper left corner and select Cloud Eye.
- In the navigation pane, choose Server Monitoring.
- On the Server Monitoring page, locate the ECS and click View Metric to go to the OS Monitoring page.
- Select the Process Monitoring tab.
In the System Processes area, the process information is displayed. Table 2 describes the metrics of system processes.
Table 2 System process metrics Metric
Description
Value Range
Collection (Linux)
Collection (Windows)
Running Processes
Number of processes that are running
≥ 0
Monitored object: ECS or BMS
You can obtain the state of each process by checking the Status value in the /proc/pid/status file, and then collect the total number of processes in each state.
Not supported
Idle Processes
Number of processes that are idle
≥ 0
Monitored object: ECS or BMS
You can obtain the state of each process by checking the Status value in the /proc/pid/status file, and then collect the total number of processes in each state.
Not supported
Zombie Processes
Number of zombie processes
≥ 0
Monitored object: ECS or BMS
You can obtain the state of each process by checking the Status value in the /proc/pid/status file, and then collect the total number of processes in each state.
Not supported
Blocked Processes
Number of processes that are blocked
≥ 0
Monitored object: ECS or BMS
You can obtain the state of each process by checking the Status value in the /proc/pid/status file, and then collect the total number of processes in each state.
Not supported
Sleeping Processes
Number of processes that are sleeping
≥ 0
Monitored object: ECS or BMS
You can obtain the state of each process by checking the Status value in the /proc/pid/status file, and then collect the total number of processes in each state.
Not supported
Total Processes
Total number of processes
≥ 0
Monitored object: ECS or BMS
You can obtain the state of each process by checking the Status value in the /proc/pid/status file, and then collect the total number of processes in each state.
Monitored object: ECS or BMS
Obtain the total number of processes by using the system process status support module psapi.dll.
Viewing Top 5 Processes with the Highest CPU Usage
- The Agent collects process CPU usages every minute and displays the top 5 processes, ranked by the CPU usage over the last 24 hours.
- Run the top command to query the CPU usage and memory usage of a process.
- Run the lsof or ls /proc/pid/fd |wc -l command to query the number of files opened by the current process. In the command, replace pid with the ID of the process to be queried.
- If a process occupies multiple CPUs, the CPU usage may exceed 100% because the collection result is the total usage of multiple CPUs.
- The top 5 processes are not fixed. The process list displays the top 5 processes that have entered the statistical period of 1 minute in the last 24 hours.
- The CPU usage, memory usage, and number of opened files are collected only for the top 5 processes for which monitoring has been enabled in the last 24 hours. If such a process has been stopped, its data will not be displayed.
- The time in the list indicates the time when a process was created.
- If the system time on the client browser is different from that on the monitored ECS, the graph may have no metric data. In this case, synchronize the local time with the ECS time.
To query information about the top 5 processes with the highest CPU usages
- Log in to the management console.
- Click Service List in the upper left corner and select Cloud Eye.
- In the navigation pane, choose Server Monitoring.
- On the Server Monitoring page, locate the ECS and click View Metric to go to the OS Monitoring page.
- Select the Process Monitoring tab.
- Click Configure under TOP 5 Processes with Highest CPU Usage.
- In the displayed TOP 5 Processes with Highest CPU Usage dialog box, enable monitoring for target processes and click OK.
Locate a process and click View Details in the Operation column. On the View Metric drawer that is slid in, view the CPU usage, memory usage, and number of opened files of the process. For details about the three metrics, see Table 3. Above the graphs, Time Range can be 1h, 3h, 12h, 1d, or 7d. You can also customize the time range to view historical monitoring data for any period during the last year.
Table 3 Process Monitoring metrics Metric
Description
Value Range
Collection (Linux)
Collection (Windows)
CPU Usage
CPU consumed by a process
pHashId (process name and process ID) is the value of md5.
0-1 x Number of CPU cores
Monitored object: ECS or BMS
Check the metric value changes in file /proc/pid/stat.
Monitored object: ECS or BMS
Call the API GetProcessTimes to obtain the CPU usage of the process.
Memory Usage
Memory consumed by a process
pHashId (process name and process ID) is the value of md5.
0 to 1
Monitored object: ECS or BMS
Memory Usage = RSS*PAGESIZE/MemTotal
RSS: Obtain its value by checking the second column of file /proc/pid/statm.
PAGESIZE: Obtain its value by running the getconf PAGESIZE command.
MemTotal: Obtain its value by checking file /proc/meminfo.
Monitored object: ECS or BMS
- Invoke Windows API procGlobalMemoryStatusEx to obtain the total memory size.
- Invoke GetProcessMemoryInfo to obtain the used memory size.
- Use the used memory size to divide the total memory size to get the memory usage.
Open Files
The number of opened files consumed by the process
pHashId (process name and process ID) is the value of md5.
≥ 0
Monitored object: ECS or BMS
You can run the ls -l /proc/pid/fd command to view the number.
Not supported
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