PF Service FAQ

Where should I output application log files?

Specify the following directory as the output destination of log files. It is also possible to create a subdirectory in the applog directory.
Output destination of log files: /var/log/applog
The files that are output in this directory can be retrieved using [View Logs (Web/AP Logs)] on the PF dashboard. For details, refer to the "Manuals" of PF.

What version of Java runtime environment is supported for the execution environment?
For the information about the Java runtime versions supported in the application execution environment, refer to the Service Specifications of PF.
When using the Framework during application development, also refer to Manuals > Application Development > Environment of PF.
How can I configure the start option for Tomcat?
Currently, no measures are provided for customers to configure the start option for Tomcat.
Is it possible to stop only one of multiple servers? For example, when there are two AP servers, is it possible to stop just one of them?
No, it is not possible to stop only some of the servers. Possible operations are stopping, starting, and restarting of all Web servers (or AP servers).
For details, refer to the "Manuals" of PF.
Is it possible to execute multiple applications (war files) at the same time?
No. Only one application (.war) can be deployed on each web server and AP server.
Is there a maintenance mode or similar function that limits access during application update?
No. Currently, no such function is provided.
When I perform deployment, "System Error" is displayed. What corrective action should I take?
Regarding the asset files for which you performed deployment, confirm the following points:
- For the log output destination, the /var/log/applog directory is specified and no other directories are used.
- The connection destination of the database defined in the application is set to the database provided by this service.
- When [Retrieve All System Logs] is performed from the PF dashboard, no errors are output in the business log or the startup log of Tomcat.
(If an error is output in either of these logs, resolve the problem based on the information in the message.)

After confirming the above points, perform deployment again. If the system error persists, contact the help desk and provide them with a screen capture of the error window and all system logs for the deployment destination server.
Is database redundancy supported?
No. Currently database redundancy is not supported. A system configuration package supporting database redundancy will be provided in the future.
Is there any way to back up the database? Also, how can I restore the data which is backed up?
For details on how to back up and restore tables, refer to the "Manuals" of PF.
When I perform deployment, the message "Another process is being executed" and the operation cannot be performed.
Multiple users may be performing the operation.
Wait for a while and then perform the operation again.
If the status does not improve even after a while, contact the help desk.
When you contact the help desk, provide them the necessary information.
When you contact the help desk, providing them with the following information helps them analyze the problem smoothly.
- A screen capture of the PF window (web browser)
- All system logs (Web server log and AP server log)
For details on all system logs, refer to the "Manuals" of PF.
Confirm that no customer information is included in any system log.
After waiting a long time while accessing deployed applications, "This Page Can't be Displayed" is displayed.
Access is restricted immediately after use of the service is started.  For details, refer to "Access Control".
Is it possible to accept both "http" and "https" at the same time on a Web server or an AP server?
No. Only "http" or "https" is accepted.
For details on load balancers, refer to the "Manuals" of PF.
Is it possible to perform additional installation of software required for executing a developed application?
No. Currently, it is not possible for customers to install software. This service only allows use of the software included in the "system configuration package" (catalog).
When a database server (Jump server) is accessed using Teraterm, "Access has been Denied" is displayed.
Access is restricted immediately after use of the service is started.  For details, refer to "Access Control".
Is it possible to use the COPY command of psql to input and output database record information as a file?
No, it is not possible.
When I perform deployment, the message "Log processing in progress. Please wait for a while and then perform the operation again." is displayed and the operation cannot be performed.
Multiple users may be performing the operation.
Wait for a while and then perform the operation again.
If the status does not improve even after a while, contact the help desk.
Is it possible to modify the settings of servers and databases?
No. Currently, functions for the customers to modify the settings are not provided.
Is it possible to add monitoring items to the System Monitoring Window?
No. Currently, functions for the customers to add monitoring items to the System Monitoring Window are not provided.
A message stating that file output to catalina.out of Tomcat failed is displayed. What corrective action should I take?

Regarding the application which is running, confirm the following points:
- For the log output destination, the /var/log/applog directory is specified and no other directories are used.
- If the application is configured to create temporary log files, confirm that the /var/tmp directory is specified as the destination of the temporary log files and no other directories are used.

If the problem persists even after confirming the above points, contact the help desk and provide them with a screen capture of the error window and all system logs for the deployment destination server.

When System.out.plintln (String) is executed on a Java application, is this event output somewhere?
Yes, it is output to the "catalina.out" file of Tomcat. This file can be retrieved using [View Logs (Web/AP Logs)] on the PF dashboard. For details, refer to the "Manuals" of PF.
Is it possible to modify the content of postgres.conf?
No, modification of the content of postgres.conf is not currently possible.
Is it possible to acquire thread dumps from Tomcat at an arbitrary timing?
No. Currently, no functions to acquire thread dumps from Tomcat at an arbitrary timing are provided.
Is it possible to confirm Web/AP server information (such as CPU usage rate)?
Yes, it can be confirmed using "Monitoring" on the PF dashboard. For details, refer to the "Manuals" of PF.
Why are PF patches not being applied when the application execution platform is passed?
By providing the user environment in the initial state and delegating the application of version patches to the user, we ensure that there are no differences in the patch versions of environments when contracting multiple environments.