When poller runs, memory tables may not always be present #4396
Description
Describe the bug
In cacti log, it reports that poller_output_boost_processes, poller_output_realtime are missing on the database server
To Reproduce
Cannot reproduce
Additional context
We can make en enhancement in the poller.php to check those two tables' existence (poller_output_boost_processes and poller_output_realtime). Just like what we have done for table poller_output_boost as following
// catch the unlikely event that the poller_output_boost is missing
if (!db_table_exists('poller_output_boost')) {
db_execute('CREATE TABLE poller_output_boost LIKE poller_output');
db_execute('ALTER TABLE poller_output_boost ENGINE=InnoDB');
}