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.
1
sudo systemctl stop sentient
1
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.
1
sudo systemctl status postgresql
Make sure you have enough space to place a backup of the database Check database size
1
sudo -u postgres psql -c "SELECT pg_size_pretty( pg_database_size('sentient') );"
Check free space
1
df -h /
If there is enough free space - make a backup.
1
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.
1
sudo systemctl status cassandra
Flush all memtables from the node to SSTables on disk.
1
nodetool drain
Stop Cassandra.
1
sudo systemctl stop cassandra
And you have to check the status again to ensure they are surely stopped.
1
sudo systemctl status cassandra
Make sure you have enough space to place a backup of the database Check database size.
1
du -h /var/lib/cassandra/ | tail -1
Check free space.
1
df -h /
Make a backup of Cassandra database.
1
2
mkdir backup
sudo tar -cvf backup/cassandra.tar /var/lib/cassandra
Check archive being created
Start Database
Cassandra
1
sudo systemctl start cassandra
PostgreSQL Do nothing, postgresql is already running.
Upgrading SENTIENT Professional Edition to 4.1
NOTE:
These upgrade steps are applicable for SENTIENT version 4.0.xPE. In order to upgrade to 4.1PE you need to upgrade to 4.0.xPE first.
Prepare for upgrading SENTIENT.
SENTIENT PE package download
1
wget https://dist.sentient.invenia.in/sentient-4.1pe.deb
SENTIENT PE service upgrade
- Stop SENTIENT service if it is running.
1
sudo service sentient stop
- Install Sentient Web Report component as described here.
1
sudo dpkg -i sentient-4.1pe.deb
NOTE:
Package installer may ask you to merge your SENTIENT configuration. It is preferred to use merge option to make sure that all your previous parameters will not be overwritten.
1
sudo /usr/share/sentient/bin/install/upgrade.sh
Start the service
1
sudo service sentient start