Master Upgrade Steps

Notice:

Support for Ubuntu 14 is depreciated. Upgrade to Ubuntu 16 from here. (It is required only if your current OS version is 14.)
Upgrade from Ubuntu 16 to 20 from here

-- command to check ubuntu version:
lsb\_release -a

For HA, make following changes:
- Go to /motadata/motadata/config
- Edit cluster-conf.yml
- change installation type from original value to 0.
- After upgrading the master server, copy motadata-cluster (EXE) in data-node server.
- After upgrade is complete, revert back installation type to its original value.

Delete following files from the 2nd level motadata folder:
- motadata-upgrade.zip
- upgrade.zip
- upgrade
- motadata-upgrade
- motadata-upgrade.conf
```
cd /motadata/motadata

rm -rf motadata-upgrade.zip

rm -rf upgrade.zip

rm -rf upgrade

rm -rf motadata-upgrade

rm -rf motadata-upgrade.conf
```
Download motadata-upgrade.zip file and FTP the file to motadata server (2nd level motadata folder).

Unzip motadata-upgrade.zip file.

cd /motadata/motadata

unzip motadata-upgrade.zip

Following files should be visible:

motadata-upgrade.py
packages.zip
upgrade-installer
upgrade-installer.config
upgrade.zip

Add 775 permission to motadata-upgrade.py:

cd /motadata/motadata

chmod 775 motadata-upgrade.py

Run upgrade command:

cd /motadata/motadata

./motadata-upgrade.py <current\_version> //for ex: ./motadata-upgrade.py 7.3.021

Go to the system folder.
```
cd /lib/systemd/system
```

If your Ubuntu version is 16, add entries in motadata service:

vi motadata.service
  --- use i command to edit -----

---- add a new line after Killmode = none ------

LimitCORE=infinity

LimitNOFILE=500000

---- press escape -------

----save using: wq!------

Run the below command. This command is required every time you make changes in motadata.service.
```
systemctl daemon-reload
```