ArcGIS Data Store cannot connect to the GIS Server site using the URL provided. Check the following and try again:

• Make sure the URL is correct. The URL must be in the format https://gisserver.domain.com:6443.
• Confirm the GIS Server site is running.

ArcGIS Server and ArcGIS Data Store must be at the same release. Either upgrade your GIS Server site to the same release as ArcGIS Data Store, or install and configure a version of ArcGIS Data Store that matches your GIS Server site.

Only two machines are allowed to participate in a relational data store: one primary and one standby machine. If you want to add a new standby machine, you must first remove the existing standby machine.

Possible reasons you would see this message include the following:

• The content directory you specified is already in use.

  If you specify an existing directory, the directory cannot contain any files.

• You don't have privileges to create a directory in the specified location. Confirm that you have sufficient privileges.
• You specified a directory on a remote machine. The ArcGIS Data Store content directory cannot be stored on a machine that is remote from the ArcGIS Data Store installation.

This message indicates the PostgreSQL database needed for the relational data store could not be created. There are many reasons for this; however, the most common is that the Data Store Configuration wizard or configuredatastore utility could not connect to PostgreSQL to create the database. Either the ArcGIS Data Store account does not have sufficient permissions on the ArcGIS Data Store content directory, or the PostgreSQL service (Windows) or process (Linux) could not start due to security settings on the machine. Confirm that PostgreSQL is running. If it is not, check if domain policies, firewall settings, or antivirus software settings prevented it from starting. If PostgreSQL is running, confirm that the ArcGIS Data Store account has full control (read, write, and execute permissions) on the content directory.

If you installed ArcGIS Data Store to a location other than C:\Program Files\arcgis\datastore, be sure the installation path does not contain spaces. See technical article 000015832 for more information.

You likely do not have the correct version of the Microsoft Visual C++ Redistributable for Visual Studio installed on the machine where you installed ArcGIS Data Store. Check the ArcGIS Data Store system requirements to determine what version of the redistributable is required for the ArcGIS Data Store version you are using.

At least one machine in the data store must be active and accessible to add another machine. Run the describedatastore utility to check the status of the tile cache data store.

Follow these steps to restore a data store to a previous ArcGIS Data Store version:

1. Uninstall ArcGIS Data Store from every machine.
2. Install the ArcGIS Data Store version to which you want to revert onto all machines. Do not proceed with configuration.
3. Restore each type of data store using the restoredatastore utility and the backup file you created before upgrading.

The size of each data store backup varies depending on the amount and size of your data, how frequently ArcGIS Data Store creates backups, and how long you retain backup files.

For relational data stores, you can schedule how frequently automatic backups are created and how long they are retained. If you use the default backup frequency and retention schedule, a backup directory contains five full backups and 31 days of incremental backup files. If you find the backup directory used to store automatic backups is using a large amount of storage, either increase the disk space on the machine or alter the ArcGIS Data Store backup frequency and retention schedules.

If you configure a location for tile cache and spatiotemporal big data stores backup files created by ArcGIS Data Store, you can also schedule how frequently automatic backups are created. However, you are responsible for cleaning up tile cache and spatiotemporal big data store backup files when they are no longer needed. Therefore, check the ages of the tile cache and spatiotemporal big data store backup files to determine whether you can delete some of the files to free up disk space. Alternatively, you can move older files to another location, such as to backup media, to free up disk space.

In addition to the location you define to store the automatic backups that ArcGIS Data Store creates, you can define another location to store the backup files you create using the backupdatastore utility. You are responsible for cleaning up the files stored in these additional backup locations when the files are no longer needed. If your additional backup locations are running out of disk space, check the ages of the files to determine whether some can be deleted. Alternatively, you can move older files to another location or backup media to free up disk space.

This message is returned when you attempt to delete a backup file that is required to properly restore the relational data store. If the backup file was created during the backup retention period you have set for your data store, you cannot delete that backup.

Often, this message is returned because not all required ports are open in the firewall to allow tile cache data store machines to communicate with one another. See the list of required ports for specific port numbers, open those ports for all the tile cache data store machines, and restore the tile cache data store again.

The ArcGIS Data Store setup executable and Data Store Configuration wizard set the AGSDATASTORE variable to the directory where it installs ArcGIS Data Store. If you run the configuredatastore utility from the same command prompt in which you ran the setup executable, that command prompt session predates the existence of the variable and, therefore, does not recognize that the variable is set. Similarly, if you opened a command prompt before running the Data Store Configuration wizard and tried to run any utility in the command prompt, you receive this message because the command prompt session predates the existence of the variable. To solve this problem, open a new command prompt and run the utility.

You could receive this message under a variety of circumstances but, in all cases, an attempt to connect to either the ArcGIS Data Store or its registered GIS Server site failed. Be sure both are available for connections. Also be sure the client from which you are trying to connect has network connectivity.

You will see this message if you configured the spatiotemporal big data store with an ArcGIS Server site, used the remove function in the ArcGIS Server Administrator Directory to remove the machine from the site, and subsequently tried to register the same spatiotemporal big data store with the same or a different ArcGIS Server site.

The remove function is used for removing standby relational data stores and should not be used to unregister a spatiotemporal big data store. Use the unregisterdatastore utility to unregister the spatiotemporal big data store from the ArcGIS Server site with which it was originally registered. This cleanly unregisters the spatiotemporal big data store from the site, and you can proceed with registering with the GIS Server used as the ArcGIS Enterprise hosting server.

You will see this message if you remove one of the machines from a multimachine tile cache data store and then validate the data store. Follow the instructions in Rebalance scene layer caches to return the tile cache data store to a highly available state.

You will see this message if your tile cache data store contains only one machine. If you do not require high availability for scene layers, you can ignore this warning.

To prevent the loss of data, the primary relational data store is placed in read-only mode when the disk space of the machine on which it is running drops below a specific size. By default, that size is 1024 MB, but you may have changed this to a different size using the changedbproperties utility.

Once the primary relational data store machine is in read-only mode, you cannot publish hosted feature layers. To take the relational data store out of read-only mode, add disk space to the primary data store machine, run the changedatastoremode utility to set the relational data store back to read-write mode, and run the updatebackupschedule utility to reestablish automatic backups for the relational data store.

This occurs if the publishing tool cannot connect to the tile cache data store. This may be due to security settings in the browser on the hosting server machines, or the tile cache data store may not be running.

First, validate that the tile cache data store is running. If it is not, attempt to start it. If it will not start, check the free disk space on the tile cache data store machine (or machines). If free disk space is below 1,024 MB, add disk space to the machine and restart ArcGIS Data Store.

If the tile cache data store is running, confirm that the machines in the hosting server site trust the tile cache data store machines. See the documentation for your operating system for information about how to add trusted sites. Once the machines in the hosting server are configured to trust the tile cache data store machines, restart ArcGIS Server on the hosting server machines.