3. Upgrading Ambari - Apache Ambari

Upgrade Ambari Server. From the Ambari Server host:

RHEL/CentOS/Oracle Linux

yum clean all
yum upgrade ambari-server ambari-log4j

SLES

zypper clean
zypper up ambari-server ambari-log4j

Check for upgrade success:

As the process runs, the console should produce output similar, although not identical, to this:

Setting up Upgrade Process
Resolving Dependencies
--> Running transaction check
---> Package ambari-agent.x86_64 0:1.2.2.3-1 will be updated
---> Package ambari-agent.x86_64 0:1.2.2.4-1 will be updated ...
---> Package ambari-agent.x86_64 0:1.2.2.5-1 will be an update ...

After the process is complete, check each host to make sure the new 1.2.5 files have been installed:

rpm -qa | grep ambari

If the upgrade fails, the console should produce output similar to this:
```
Setting up Upgrade Process
No Packages marked for Update
```

Check to see if you have a folder named /etc/ambari-server/conf.save. If you do, rename it back:

mv /etc/ambari-server/conf.save /etc/ambari-server/conf

Upgrade the Ambari Server schema. From the Ambari Server host:

ambari-server upgrade

Upgrade the Ambari Agent on all hosts. From each Ambari Agent host:

RHEL/CentOS/Oracle Linux
```
yum upgrade ambari-agent ambari-log4j
```

SLES

zypper up ambari-agent ambari-log4j

	Note
	If you get a warning that begins "There are some running programs that use files deleted by recent upgrade" you can ignore it.

Check to see if you have a folder named /etc/ambari-agent/conf.save on each Agent host. If you do, rename it back. On each Agent host:

mv /etc/ambari-agent/conf.save /etc/ambari-agent/conf

Upgrade Ganglia and Nagios:

Upgrade Ganglia Server. From the Ganglia Server host:

RHEL/CentOS/Oracle Linux

yum upgrade ganglia-gmond ganglia-gmetad libganglia
yum erase gweb hdp_mon_ganglia_addons
yum install ganglia-web

SLES

zypper up ganglia-gmond ganglia-gmetad libganglia
zypper remove gweb hdp_mon_ganglia_addons
zypper install ganglia-web

Upgrade Ganglia Monitor. From every host that has Ganglia Monitor installed:
- RHEL/CentOS/Oracle Linux
```
yum upgrade ganglia-gmond libganglia
```
- SLES
```
zypper up ganglia-gmond libganglia 
```
Upgrade Nagios. From the Nagios Server host:
- RHEL/CentOS/Oracle Linux
```
yum upgrade nagios
yum upgrade hdp_mon_nagios_addons
yum erase nagios-plugins-1.4.15
yum install nagios-plugins-1.4.9
```
  The 1.4.9 version of the plugin may already be installed. In this case, the second step is a no-op.
- SLES
```
zypper up nagios
zypper up hdp_mon_nagios_addons
zypper remove nagios-plugins-1.4.15
zypper install nagios-plugins-1.4.9
```
  The 1.4.9 version of the plugin may already be installed. In this case, the second step is a no-op.