Upgrade Sqoop2

About this task

To upgrade to the latest version of Sqoop2, execute the following commands as root or using sudo:

NOTE: If you installed Sqoop2 with the MapR Installer, use the latest version of the MapR Installer to perform the upgrade.

Stop each Sqoop2 server node.

maprcli node services -name sqoop2 -action stop -nodes <space delimited list of nodes>

As a precaution, back up the Sqoop2 repository. For example, you can copy the repository to the /tmp directory:
```
cp -a /opt/mapr/sqoop/repository /tmp/
```
To retain custom configurations, back up the sqoop.properties file (/opt/mapr/sqoop/sqoop-<version>/server/conf/sqoop.properties). For example, you can copy the file to a /tmp directory:
```
cp /opt/mapr/sqoop/sqoop-<version>/server/conf/sqoop.properties /tmp/
```
On each Sqoop2 server node, upgrade the mapr-sqoop2-server packages.
On Ubuntu
```
apt-get install mapr-sqoop2-server
```
On RedHat and CentOS
```
yum update mapr-sqoop2-server
```
Perform one of the following steps:
1. Manually update the sqoop.properties file with new options. On each Sqoop2 server node, set the following property in sqoop.properties file ( /opt/mapr/sqoop/sqoop-<version>/server/conf/sqoop.properties):
```
org.apache.sqoop.repository.schema.immutable=false
org.apache.sqoop.connector.autoupgrade=true
org.apache.sqoop.driver.autoupgrade=true
```
2. Use the upgrade utility to update the sqoop.properties file. On each Sqoop2 server node, run the upgrade utility. When the upgrade utiity completes successfully, the following message displays: Tool class org.apache.sqoop.tools.tool.UpgradeTool has finished correctly.
```
/opt/mapr/sqoop/sqoop-<version>/bin/sqoop-tool upgrade
```
Optionally, reconfigure any custom configurations from the sqoop.properties file associated with the sqoop version that you upgraded from.

Start Sqoop2 server nodes.

maprcli node services -name sqoop2 -action start -nodes <space delimited list of nodes>