SENTIENT Professional Edition v4.2.x upgrade instructions for CentOS

• Prepare for upgrading SENTIENT
  • Backup Database
    • PostgreSQL
    • Cassandra
  • Start Database
• Upgrading SENTIENT Professional Edition to latest 4.2.x (4.2.2.1)
  • SENTIENT PE package download
  • SENTIENT PE service upgrade
  • Start the service
• Upgrading SENTIENT Professional Edition to 4.2.1.2
  • SENTIENT PE package download
  • SENTIENT PE service upgrade
  • Start the service
• Upgrading SENTIENT Professional Edition to 4.2
  • SENTIENT PE package download
  • SENTIENT PE service upgrade
  • Start the service

Prepare for upgrading SENTIENT

Stop SENTIENT Check if SENTIENT and database services are running Initially SENTIENT, check status to ensure it is stopped and then databases.

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sudo systemctl stop sentient

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sudo systemctl status sentient

Backup Database

Make a backup of the database before upgrading.

PostgreSQL

Check PostgreSQL status. It is unnecessary to stop PostgreSQL for the backup.

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sudo systemctl status postgresql

Make sure you have enough space to place a backup of the database Check database size

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sudo -u postgres psql -c "SELECT pg_size_pretty( pg_database_size('sentient') );"

Check free space

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df -h /

If there is enough free space - make a backup.

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sudo -Hiu postgres pg_dump sentient > sentient.sql.bak

Check backup file being created.

Cassandra

Check Cassandra status. It is necessary to stop Cassandra for the backup.

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sudo systemctl status cassandra

Flush all memtables from the node to SSTables on disk.

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nodetool drain

Stop Cassandra.

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sudo systemctl stop cassandra

And you have to check the status again to ensure they are surely stopped.

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sudo systemctl status cassandra

Make sure you have enough space to place a backup of the database Check database size.

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du -h /var/lib/cassandra/ | tail -1

Check free space.

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df -h /

Make a backup of Cassandra database.

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mkdir backup
sudo tar -cvf backup/cassandra.tar /var/lib/cassandra

Check archive being created

Start Database

Cassandra

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sudo systemctl start cassandra

PostgreSQL Do nothing, postgresql is already running.

Upgrading SENTIENT Professional Edition to latest 4.2.x (4.2.2.1)

NOTE:

These upgrade steps are applicable for SENTIENT version 4.2.0+. In order to upgrade to 4.2.2.1PE you need to upgrade to 4.2.0 first.
Prepare for upgrading SENTIENT.

SENTIENT PE package download

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wget https://dist.sentient.invenia.in/sentient-4.2.2.1pe.rpm

SENTIENT PE service upgrade

• Stop SENTIENT service if it is running.

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sudo service sentient stop

• Install Sentient Web Report component as described here.

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sudo rpm -Uvh sentient-4.2.2.1pe.rpm

If you are upgrading from 4.2, you must run the script below. However, if you are upgrading from version 4.2.1+, DO NOT run the upgrade script; proceed directly to starting the service.

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sudo /usr/share/sentient/bin/install/upgrade.sh

Start the service

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sudo service sentient start

Upgrading SENTIENT Professional Edition to 4.2.1.2

NOTE:

These upgrade steps are applicable for SENTIENT version 4.2.0 or any 4.2.1 patch. In order to upgrade to 4.2.1.2PE you need to upgrade to 4.2.0 first.
Prepare for upgrading SENTIENT.

This version has known security vulnerabilities that are fixed in newer releases. We recommend upgrading to the latest patch version instead.

SENTIENT PE package download

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wget https://dist.sentient.invenia.in/sentient-4.2.1.2pe.rpm

SENTIENT PE service upgrade

• Stop SENTIENT service if it is running.

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sudo service sentient stop

• Install Sentient Web Report component as described here.

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sudo rpm -Uvh sentient-4.2.1.2pe.rpm

If you are upgrading from 4.2, you must run the script below. However, if you are upgrading from version 4.2.1.x, DO NOT run the upgrade script; proceed directly to starting the service.

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sudo /usr/share/sentient/bin/install/upgrade.sh

Start the service

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sudo service sentient start

Upgrading SENTIENT Professional Edition to 4.2

SENTIENT PE package download

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wget https://dist.sentient.invenia.in/sentient-4.2pe.rpm

SENTIENT PE service upgrade

• Stop SENTIENT service if it is running.

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sudo service sentient stop

• Install Sentient Web Report component as described here.

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sudo rpm -Uvh sentient-4.2pe.rpm

If you are upgrading from version 4.1, you must run the script below

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sudo /usr/share/sentient/bin/install/upgrade.sh

Start the service

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sudo service sentient start