Check the report server time setting.

You can do it by reading the time that is displayed at the bottom of the reports. Ensure the report server has the time zone set correctly.

Figure 6. An example of the report time stamp

The yellow triangle displays “A daily maintenance task is in progress. Data processing suspended.” What do I do?

Once a day the report server has to perform a database maintenance and memory cleanup. For that time, the data processing has to be suspended and you will see delayed data on reports. The daily maintenance is usually performed as the first task after midnight and it takes up to half an hour in installations with a large database.

It is normal and expected to see this warning just after midnight. But if you see the message during the day, it can be an symptom of incorrect system configuration (check time settings on the server) or of system overload.

The yellow triangle displays “No contact with the primary AMD.” What do I do? This message means that the report server lost contact with at least one primary AMD. If an AMD is marked as primary and the report server cannot get contact with this AMD, even if the performance data can be downloaded from the other AMDs, the system will wait until the communication with the primary AMD is restored.

The yellow triangle displays “No contact with any of the AMDs.” What do I do? This message means that the communication link cannot be established with any of the attached AMDs. Check the network settings on the report server or the configuration of AMDs.

The yellow triangle displays “Delay in data processing.” What do I do?

If the last processed data is significantly behind the current time due to slow data processing or idle periods that occurred in the past, the report server displays the triangle icon with the message “Delay in data processing”. If the server had a delay, but now it is catching up, this message will not appear anymore. To confirm that delay is decreasing, you have to inspect server.log and search for messages similar to this:

T REC 06-02-21 15:10:33.268 zdata_43f47e58_5_t is being processed. Sample begin ts = 06-02-16 14:25. Sample delay 17 min.

If the delay becomes smaller, it means the server is catching up. If the delay values are growing, it can indicate the system overload.

The yellow triangle displays “The AMD has not yet generated performance data.” What do I do?

This message indicates that some data files have already been generated on some AMDs, but not on the others. This may not be an indication of a problem and, when you refresh the reports after 30 to 60 seconds, this message may disappear. All you can do is to verify the time synchronization among all the AMD s. See The yellow triangle displays “Delay in data processing.” What do I do? [p. 70].

The yellow triangle displays “Data processing is being performed in the debug mode.” What do I do?

Data processing can be manually suspended and controlled by so-called debug mode, which can be enabled using Control Panel.

Open Control Panel by typing: http://server_name/atscon

in the Address bar of your Web browser and clicking Go, then select Controlled data processing from the Configuration Management section.

The red triangle displays “Data loading is in progress. Reports may be incomplete.” What do I do?

This message indicates that the report server is currently starting up. Because of this the information presented on reports may be incomplete. Depending on the database size, the startup process may take up to several minutes. If the server restart was not done manually or was not planned, please inspect server.log or contact Customer Support.

The red triangle displays “Low memory. The real-time cache will only be updated.” What do I do?

This message indicates that the report server has no free memory to process new entities such as software services, servers, and URLs. This message will be cleared when some resources are freed, what usually happens at midnight during the scheduled database maintenance (see The yellow triangle displays “A daily maintenance task is in progress. Data processing suspended.” What do I do? [p. 70]). All the metric values presented on reports (except user/client counters) will show correct values. The only problem is that predefined tabular reports may not show all the entities they are intended to show. All the charts and DMI reports show correct data.

The mechanism of updating the real-time cache, as described above, is a protection that allows the report server to continue the operation instead of closing down due to lack of memory resources.

The red triangle displays “The number of servers has reached the defined limit.” What do I do?

The report server has a built-in limit of the number of monitored servers. If the number of observed servers reaches a defined limit, the report server will not accept any new servers and will drop the collected data for those servers.

The predefined value of the limit can be customized. However, the report server can automatically adjust the limit in low-resources situations.

The red triangle displays “The number of clients has reached the defined limit.” What do I do?

The report server has a built-in limit of the number of monitored clients. If the number of registered clients (which also includes aggregated virtual clients such as “Client from...”) reaches a defined limit, the report server will not accept any new clients and will drop the collected data for those clients.

The predefined value of the limit can be customized. However, the report server can automatically adjust the limit in low-resources situations.

The red triangle displays “The number of sites has reached the defined limit.” What do I do?

The report server has a built-in limit of the number of automatically created sites. If the number of observed automatic sites reaches a defined limit, the report server will not create any new automatic sites and such traffic will be allocated to All Other. The predefined value of the limit can be customized. However, the report server can automatically adjust the limit in low-resources situations.

The Sites report for a selected application is empty. Why?

If the Sites report for a selected application is filtered for a client tier, such as Synthetic or RUM sequence transactions, it will not show any data. To see statistics for sites, drill down from the Applications report as follows: