I used the below to create and compress a backup of my mysql JIRA database:
#mysqldump -u jiradbuser -p jiradb | gzip -9 > backupjiradb.sql.gz
To uncompress:
#gunzip backupjiradb.sql.gz
How do I restore the backup?
#mysql -u jiradbuser –p jiradb < backupjiradb.sql does not work?