Tutorial

FAQ

For the virtual machine created based on the template, an error occurs while clicking on the GIS desktop shortcuts: “SuperMap license is not available, please check the license configuration”. What I should do if the license display in a normal status in License Center.

Answer: Please open the “SuperMap License Center”, click Restart Server on the Settings page. When the restart finished, GIS desktop will start successfully.
In the process of GIS environment creation, if the failure of the execution appears in Task Management page, and the IP * * * * * * * is not available. Please check the network configuration information and retry prompt display. How to handle this problem?

Answer: The first possibility of such an error is that the network configuration information is incorrect. Secondly, it might be because it is impossible to get an IP address from DNSmasq. The simplest way is to turn off all the DNSmasq processes on the machine and reboot nova-work.

Specific steps are as follows:

(1) Check the network configuration information and the configuration information of the virtual platform. When you confirm the network is available, click the “Retry” button for the task. After retry, if the task is successful, you do not need the following steps.

(2) If the same prompt still exist after checking the network configuration information and retrying, you need to configure the OpenStack Controller node (DNSMASQ host machine). The configuration method is to perform “killall dnsmasq” and “service neutron-dhcp-agent restart” at the Controller node (the DNSMASQ machine).

(3) After restarting the Controller node, on the iManager Task Management page, click the “Retry” button for the task.
GIS environment cannot be successfully created or the GIS environment created according to the iManager template is not available, what is the reason? How should I solve it?

Answer: This phenomenon may be caused by the following two aspects:

(1) During the import of a mirrored file, you should select a mirror type that matches the file type of the imported mirror file. Take the OpenStack platform as an example, when we “Create an Image”, the value of “Format” should be the same file type as the imported mirror file. For specific operations, please refer to Appendix > OpenStack Additional Configuration to Import the GIS mirror image on OpenStack platform.

(2) Check whether the image file is complete. The integrity of the mirrored file you obtain affects the GIS environment created by iManager. You need to check that the MD5 value of the mirrored file you get is consistent with the MD5 value given in the file. After importing, you also need to verify the MD5 value.
“What should I pay attention to while importing an external load balancer?

Answer: The configuration information for the load balancing group is stored in the load balancer’s configuration file directory, therefore, the primary configuration should include the directory of the configuration file. If it is not included, the service of the load balancing group created relying on the externally imported load balancer will not be accessible.

The specific solution is to ensure that the Nginx primary configuration file nginx.conf contains the Nginx configuration file directory. Here we take parameters for installing Nginx as an example:

(1) The configuration file directory is: /etc/nginx/conf.d

(2) The primary configuration file nginx.conf is under the the/etc/nginx directory

(3) In the HTTP configuration of the /etc/nginx/nginx.conf primary configuration file, make sure that you have the following configuration:
```
http{
  include /etc/nginx/conf.d/*.conf;
  }
```
On Windows, what should I do if the license Information page in license management displays “Get license information failed”?

Answer: First check whether there are available licensee with SuperMap.LicenseCenter. If a license is currently available and valid, open the command line window as an administrator, enter the bin directory of the SuperMap iManager installation directory. Enter startup.bat and start the SuperMap iManager service.
What should I do if the hang up of Docker container causes the failure of access to GIS environment?

Answer: The GIS environment is not accessible. The corresponding container hangs up and the stop, delete operations cannot work. Log on to the host where the Docker resides, and use uname -a to view the current Kernel version. If your version is too old,such as 4.2.0-30.35, please upgrade your Kernal to the latest version.

Please refer to http://kernel.ubuntu.com to upgrade Kernel of Ubuntu.
What should I do if license loss is caused by the adjustment of GIS environment specifications on OpenStack platform?

Answer: Restart GIS environement.
What should I do if he adjustment of GIS environment specifications on OpenStack platform failed?

Answer: Check if ssh has no permissions in OpenStack. Node A needs to access node B via ssh without password. Execute ssh -t rsa under the /var/lib/nova directory of node A (no additional information required, press Enter directly) to generate public key (id_rsa.pub) and encrypted key (id_rsa) file (make sure the generated directory is located under /var/lib/nova). Copy the cat id_rsa.pub >> authorized_keys command under the /var/lib/nova/.ssh/ directory of node B (implement the management of multiple keys according to requirement) Execute command on node B.
```
chmod 700 /var/lib/nova/.ssh
chmod 600 /var/lib/nova/.ssh/anthorized_keys
chown nova:nova /var/lib/nova/.ssh/id_rsa /var/lib/nova/.ssh/authorized_keys
```
I can see GIS environment in GIS environment management. However, on the Administrator Overview page, I always see “No created GIS environment” in “GIS environment statistics”.

Answer: Check the database you configured. If it is MySQL, please modify my.cnf file. In the property settings of sql_mode, remove the “ONL