Upgrade geodatabases in PostgreSQL on Amazon Web Services—ArcGIS Enterprise on AWS

To upgrade geodatabase functionality, you can either create an ArcGIS Server 10.5.1 for Amazon Web Services (AWS) instance, move your data to the new geodatabase, and republish services, or you can update the ArcGIS software on your existing AWS instance and upgrade the geodatabase.

The following sections describe methods for getting your geodatabase to the latest possible state, and when you would use each method.

Create an ArcGIS 10.5.1 for AWS instance and move your data from an older instance

The easiest way to get all the latest versions of ArcGIS and PostgreSQL is to create an ArcGIS Server for AWS instance from the latest Amazon Machine Image (AMI), move your data, and republish services. See The ArcGIS Server AMIs for information on what software and operating system versions are present in the latest Esri AMIs.

For information on moving data, see 'Options for transferring data to the cloud' in Strategies for data transfer to Amazon Web Services.

If you're using an ArcGIS Server 10 AWS instance with data in PostgreSQL, you must use this method to upgrade your geodatabase. Also, if you want to move your data to an Amazon Relational Database Service (RDS) for PostgreSQL instance, you must create new instances, move data, and republish services.

Move from a 10 instance to a current instance

At ArcGIS 10, there was a separate enterprise geodatabase AMI that contained a PostgreSQL 8.3.8 database cluster on Windows. The ArcGIS Server AMIs that include PostgreSQL now run on Ubuntu Linux. You cannot move directly from a PostgreSQL database on Windows to one on Linux. You also cannot upgrade ArcGIS 10 Server to ArcGIS 10.1 for Server or later releases; therefore, if you migrate to the current ArcGIS AWS AMIs from ArcGIS 10 Server for AWS, you must move or reload your data and republish.

Move from a 10.1, 10.2.x, 10.3.x, 10.4.x instance to a 10.5 instance

The version of PostgreSQL included with the ArcGIS AMIs has changed over time. The following table lists the version of PostgreSQL included with each Linux AMI:

ArcGIS Server (Linux) with PostgreSQL AMI	PostgreSQL version included
ArcGIS 10.1	9.0.5
ArcGIS 10.2	9.0.13
ArcGIS 10.2.1 and 10.2.2	9.2.4
ArcGIS 10.3	9.3.4
ArcGIS 10.3.1	9.3.6
ArcGIS 10.4.x	9.3.10
ArcGIS 10.5	9.3.12

If you want to use PostgreSQL 9.3.12, you can move your data to ArcGIS Server 10.5 for AWS. Note that PostgreSQL no longer supports 9.0.x versions of their database management system so you should either launch a newer instance and move your data or upgrade PostgreSQL on your existing instance. Follow instructions in PostgreSQL documentation to upgrade PostgreSQL.

Update the ArcGIS software on your existing AWS instance and upgrade the geodatabase

You can install the latest version of ArcGIS Server on your existing instance, upgrade your geodatabase in PostgreSQL, and continue using your existing data and services if the version of ArcGIS Server you install is compatible with the version of PostgreSQL on your instance. Be aware, though, that this means the operating system and all other software on the instance remain at the version they were when you created your instance. For example, if you created your instance from an ArcGIS Server 10.2.2 for AWS AMI, you will continue to use a PostgreSQL 9.2.4 database on an Ubuntu 12.04 operating system.

If the existing PostgreSQL version on your instance is not compatible with the new version of ArcGIS Server, you need to also upgrade PostgreSQL to a supported version. For example, if you launched an ArcGIS 10.2 instance and want to upgrade to ArcGIS Server 10.5 on that instance, you must also upgrade PostgreSQL to a supported version.

The next two sections explain how to upgrade a geodatabase in PostgreSQL on an existing ArcGIS Server AWS instance. (These instructions do not apply to geodatabases in Amazon RDS for PostgreSQL.)

Update ArcGIS Server on an existing AWS instance and upgrade geodatabases on SITEHOST

If you want to update an ArcGIS Server for AWS instance, follow the steps in this section to upgrade geodatabases in PostgreSQL that reside on the same instance as the ArcGIS Server SITEHOST.

Update ArcGIS Server, move the new st_geometry.so file to the PostgreSQL lib directory, stop ArcGIS Server, run a Python script to upgrade each geodatabase, and restart ArcGIS Server.

Install the latest version of ArcGIS Server on your AWS instance.

See Apply an ArcGIS update to a single-machine site or Apply an ArcGIS update to an Ubuntu multiple-machine site for instructions if you have not already installed the software.
Before you upgrade your geodatabases, make backup copies of them. The easiest way to do that is to make a Cloud Builder backup of your site (if you created your site using Cloud Builder), or make a snapshot of the EBS volume that contains your data. If you want to make a snapshot of the EBS volume, see Amazon Web Services documentation for instructions.
Also, before upgrading, you must copy the st_geometry.so file from /arcgis/server/DatabaseSupport/PostgreSQL/Linux64 to /usr/lib/postgresql/<postgresql version>/lib.
1. The st_geometry.so file is owned by root; therefore, after connecting to the Amazon Web Services SITEHOST instance as ubuntu, switch users to root:
  sudo su -
  Note:
  
  Be aware that you cannot connect as the arcgis user and switch to the root user.
2. Before you copy the new file, rename the old one.
  mv /usr/lib/postgresql/<postgresql version>/lib/st_geometry.so /usr/lib/postgresql/<postgresql version>/lib/st_geometryOLD.so
3. Copy the new st_geometry.so file.
  cp /arcgis/server/DatabaseSupport/PostgreSQL/Linux64/st_geometry.so /usr/lib/postgresql/<postgresql version>/lib
4. Change permissions on the st_geometry.so file to allow other users to read and execute it.
  chmod 755 /usr/lib/postgresql/<postgresql version>/lib/st_geometry.so
Switch to the arcgis user.
```
su - arcgis
```
Open a text editor to create the upgrade Python script.
```
vi upgrade.py
```

Copy the following script into a text editor.

Alter the script to use information specific to your site, including the instance name, sde password, connection file name and location, and database name.

#Import arcpy module
import arcpy

# Create connection file
arcpy.CreateDatabaseConnection_management("/tmp","egdb_connection.sde","POSTGRESQL","ec2-123-456-789-100.compute-1.amazonaws.com","DATABASE_AUTH", "sde", "E$ri3774", "SAVE_USERNAME", "egdb")
# Upgrade geodatabase
arcpy.UpgradeGDB_management("/tmp/egdb_connection.sde", "PREREQUISITE_CHECK", "UPGRADE")

See Create Database Connection and Upgrade Geodatabase for more information on tool syntax.

Save the file and close the text editor.
Stop ArcGIS Server.
```
/arcgis/server/stopserver.sh
```
Run the script in Python.
```
/arcgis/server/tools/python <path to the file>/upgrade.py
```
You will likely see multiple notices about type references. You can ignore these; they do not indicate the upgrade failed.

Information is written to the GDBUpgrade.log in /arcgis/server/framework/runtime/.wine/drive_c/users/arcgis/LocalAppData/ESRI/Server<#> if the upgrade does fail.
Run the following in Python to be sure your geodatabase is upgraded. Replace /tmp/egdb_connection.sde with your connection file location and name.
First, open an arcpy prompt.
```
cd /arcgis/server/tools
./python
```
Use isCurrent to determine if the geodatabase is upgraded to the current release.
```
import arcpy

isCurrent = arcpy.Describe('/tmp/egdb_connection.sde').currentRelease

print isCurrent
```
If print isCurrent returns True, your geodatabase is upgraded.
To exit the arcpy prompt, type quit().
Alter the script and run it again for each geodatabase you need to upgrade.
If you need to upgrade PostgreSQL to a supported version, create a database backup and proceed with upgrading PostgreSQL. How you upgrade PostgreSQL depends on the PostgreSQL versions you are upgrading from and to. See PostgreSQL's documentation for instructions.
Once all geodatabases (and databases, if necessary) are upgraded, restart ArcGIS Server.
```
/arcgis/server/startserver.sh
```

If you have a multiple-machine site, proceed with step 11 in Apply an ArcGIS update to an Ubuntu multiple-machine site.

Update ArcGIS Server on an existing AWS instance and upgrade geodatabases that are on their own AWS instance (EGDBHOST)

If you want to update a ArcGIS Server on an AWS instance, follow the steps in this section to upgrade geodatabases in PostgreSQL that are on their own, dedicated AWS instance (EGDBHOST).

Update ArcGIS Server on the SITEHOST, move the new st_geometry.so file from SITEHOST to the PostgreSQL lib directory on EGDBHOST, stop ArcGIS Server, run a Python script from SITEHOST to upgrade each geodatabase, and restart ArcGIS Server.

Install the new version of ArcGIS Server on your AWS instance.

See Apply an ArcGIS update to a single-machine site or Apply an ArcGIS update to an Ubuntu multiple machine site for instructions.
Before you upgrade your geodatabases, make backup copies of them. The easiest way to do that is to make a snapshot of the EBS volume that contains your data. See Amazon Web Services documentation for instructions on making a snapshot of an EBS volume.
Also, before upgrading, you must copy the st_geometry.so file from /arcgis/server/DatabaseSupport/PostgreSQL/Linux64 to /usr/lib/postgresql/<postgresql version>/lib.
1. Before you copy the new file, rename the old one on EGDBHOST. Since the st_geometry.so file is owned by the root user, log in to EGDBHOST as ubuntu and switch to the root user.
  sudo su - mv /usr/lib/postgresql/<postgresql version>/lib/st_geometry.so /usr/lib/postgresql/<postgresql version>/lib/st_geometryOLD.so
2. You must move the st_geometry.so file from /arcgis/server/DatabaseSupport/PostgreSQL/Linux64 on SITEHOST to /usr/lib/postgresql/<postgresql version>/lib on EGDBHOST.
  
  Since the two source and destination directories on the different instances are not accessible by the same user, log in to SITEHOST as the arcgis user and copy the file to the gisdata directory on EGDBHOST.
  cp /arcgis/server/DatabaseSupport/PostgreSQL/Linux64/st_geometry.so /net/EGDBHOST/gisdata/st_geometry.so
3. Log in to EGDBHOST as ubuntu.
4. Switch to the root user.
  sudo su -
5. Copy the st_geometry.so file from gisdata to /usr/lib/postgresql/<postgresql version>/lib.
  cp /gisdata/st_geometry.so /usr/lib/postgresql/<postgresql version>/lib/st_geometry.so
6. Change permissions on the st_geometry.so file to allow other users to read and execute it.
  chmod 755 /usr/lib/postgresql/<postgresql version>/lib/st_geometry.so
Log in to SITEHOST as the arcgis user.
Open a text editor to create the upgrade Python script.
For example:
```
vi upgrade.py
```