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The Statistics pages enable you to configure, monitor and troubleshoot all services and servers.
Note The WAE Statistics page does not appear in some web browsers if you do not have the correct SSL certificates. To work around this, install the correct SSL certificates (see the “” section) or do the following:
1. Click the WAE Statistics link. The URL format is https:// <server_IP> :8443. For example,
2. Copy the URL of this page to another browser window.
3. In the new browser, change the URL port from 8443 to 8843. For example,
4. Follow the browser messages to accept the connection and add it as an exception.
The following terms are used on these UI pages and in this documentation.
Note that the terms service , process , and function are used interchangeably. For example, the Processes page lists services. The Platform Diagnostics page, Functions tab shows services per component.
Note that the terms component , server , and host are used interchangeably.
Note If you do not see the Statistics UI, make sure the System services are running. If they are not, turn on the System services through the CLI. For information, see Events.
The
wae-svcs-mon
service automatically monitors all
wae-svcs*
,
wae-ni
, and
wae-web-server
upon installation completing. It also monitors the Automation services once they are started. If the system is rebooted or if you “ungracefully” stop a process, such as with a
kill
command,
wae-svcs-mon
automatically restarts the service. Therefore, the only way to shut down a service is as follows:
Note The wae-mld
service is not monitored.
The scripts for starting and stopping Automation and WAE services are located in
/etc/init.d
and
/usr/local/bin
. Whether these scripts are executed on startup is handled by symbolic links created in
/etc/rc#.d
directories, where # is a number 0 through 6.
You can use
chkconfig
to disable, enable, and view startup settings. Note that you must have root permission to execute
chkconfig
commands.
For more information on
service
and
chkconfig
utilities, use their
man
pages.
The ports that servers are listening to are listed in the System Requirements document posted on cisco.com. Following is an example of how to verify that the WAE Core service started and is listening to the correct port, which by default is 7777.
Access: WAE Statistics > Processes.
The Process Status page shows the status of all services except
wae-mld
. The column headings list the hostname and IP address for each server (host). For each service that is running on a host, an icon appears on the service row under the appropriate host column. The icon color indicates the status of the service under the related host.
If a service is not available, a dash appears in the cell for that host.
Click the circular icon to view service status details, such as the service uptime, data collection timestamp, and the memory and CPU usage on that server.
There are two types of services monitored: WAE services and System services.
wae-ni
displays red, then you know the WAE Network Interface (NI) server might have stopped running. You could also determine network issues, such as if a port were blocked by a firewall or if a WAE server could not communicate with the network.The status is updated every 15 seconds. You can also refresh the status by clicking the upper right Refresh icon.
If you have an admin role, you can perform the following tasks using the WAE UI:
Note System services and wae-web-server
cannot be disabled at boot. You can only start, end, and restart wae-web-server
using the CLI. For more information, see Starting and Stopping Services Using the CLI.
Step 1 From the WAE UI, select WAE Statistics > Processes . The Process Status lists all running services.
Step 2 Click the circular icon that belongs to the WAE service that you want to configure.
Step 3 Click the appropriate button to perform the desired action. If there are no buttons available, then that service cannot be configured.
Access: WAE Statistics > Events.
The Log Events Detail section shows detailed log information for each service except
wae-mld
and thus, can be used for troubleshooting the system or simply better understanding it. You could use this information for investigating a wide range of issues. For example, you could find logs that identify why a collection failed or find warnings applicable to PCEP LSP deployments.
The most recent 100 logs appear, and log data is kept up to 30 days.
You can search for any word in the Log Events Detail section. This search feature uses the query string syntax produced by Elasticsearch. For information on these capabilities, see the Query String Syntax information in the Elasticsearch documentation.
https://www.elastic.co/guide/en/elasticsearch/reference/current/query-dsl-query-string-query.html#query-string-syntax
To filter what type of log events are displayed, do the following:
Step 1 From the WAE UI, select WAE Statistics > Events.
Step 2 From the Select Log Level drop-down list, select the minimum log level severity.
The Log Events Detail immediately displays events with the minimum severity level you selected. For example, if you select WARN, all severity levels set to WARN or higher will be displayed. The log level severities are listed in the following order (from highest to lowest): FATAL, ERROR, WARN, INFO, and DEBUG.
Access: WAE Statistics > Diagnostics.
The Platform Diagnostics page is particularly useful for analyzing trends over time and for being alerted to sudden changes in those trends, which could indicate either problems with one of the servers or a problem in the network. Diagnostics data is kept up to 7 days.
Note You can switch between the system status or utilization graphs by clicking the toggle icon underneath the Refresh icon. For more information on system status, see Chapter8, “Local Server Status”
The default view is Summary of Components in distributed deployments or Components in single-system deployments.
These trends enable you to clearly see changes and potentially correlate these changes with events. If a component is sluggish or not performing as expected based on the past, you would see this as a trend change. For example, if a CPU is running generally at 25% usage and suddenly jumps to 90%, that spike would appear in the graph, and you could then check the Event Logs for errors or warnings that indicate why the CPU percentage drastically increased. If the memory usage trend changed from 5 GB to 25 GB, this change would appear in the graph, and you could check the network to see if a problem had occurred to cause such an increase.
Component diagnostics include CPU percentage usage, memory usage, network usage, and free disk space. For distributed deployments, this is also selectable as “Summary of all Components” from the top, right selection menu. The following options are also available in the top left.
Note that whether the page displays services and whether the page displays information for a distributed deployment differs depending on the option selected.
Note The wae-mld
service is not available from the Platform Diagnostics page.
Figure 7-1 Platform Diagnostics Selections
The time filter and refresh interval in the top right are toggles for showing and hiding the selections to change them (Figure 7-2). The two act in conjunction with each other. The time filter is the amount of time for which the events or diagnostics are displayed. The refresh interval is how often the data is refreshed. For example, on the Platform Diagnostics page, if the time filter is the last 30 minutes and the refresh interval is 5 minutes, this means that every 5 minutes the diagnostics are updated to show the last 30 minutes from that point in time.
The default time filter is 60 minutes, and by default, the information on the pages is not automatically refreshed.
Figure 7-2 Event and Diagnostic Time Features
To change the time filter, click it. A set of choices appear. Once you set the time filter, click Go .
To change the time interval, click the time filter or the refresh interval, select Refresh Interval, and then make your selection. You can also turn off the viewing of this interval.
Note If you leave the page, the refresh setting reverts to the default of not refreshing (off).
Figure 7-3 shows an example of the CPU% Usage for the WAE Core 2 component. The expanded legend defines the trend lines for CPU cores 0 (blue) and 1 (green). Hovering over the lowest CPU utilization shows more details for it. Notice the icon in the bottom right for expanding and contracting the graph.
Figure 7-3 Example Expanded View with Legend and Tooltip
Access: WAE Statistics > Database Info.
From this page, you can view and monitor database information such as space usage (MB), and read/write cache rate percentage and disk input/output performance.
The graphs, by default, display information for the past day. To change the date or time range, do the following:
Step 1 From the WAE UI, select WAE Statistics > Database Info.
Step 2 Click the Date/Time Range link.
Step 3 Click the applicable radial button to enter the past number of days or to give a date and time range.
Step 4 Click the Redraw Graphs button to view the updated graphs.
To generate and download a report of the information shown in the graphs, do the following:
Step 1 From the WAE UI, select WAE Statistics > Database Info.
Step 2 Click the Generate Diagnostics Report button. It may take some time for the report to generate.
Step 3 Click the Download Report button. This button is only enabled when the report is ready.