Custom UserParameters in triggers?

[kbcetn]

I have got to be doing something silly somewhere. I have these UserParameters on all my MySQL agents:

UserParameter=mysql.replication.slave_io_status[*],mysql --defaults-file=/var/lib/zabbix/.my.cnf -e 'show slave status\G' | grep 'Slave_IO_Running:' | sed -e 's/Yes/1/' -e 's/No/0/' | cut -d: -f2- | cut -d' ' -f2-
UserParameter=mysql.replication.slave_sql_status[*],mysql --defaults-file=/var/lib/zabbix/.my.cnf -e 'show slave status\G' | grep 'Slave_SQL_Running:' | sed -e 's/Yes/1/' -e 's/No/0/' | cut -d: -f2- | cut -d' ' -f2-

That works as expected.

zabbix_agentd -t mysql.replication.slave_io_status
mysql.replication.slave_io_status [t|1]

Good. Now, I'm trying to figure out how to make that work as a monitor. I've tried this expression in my new trigger...

last(/MySQL by Zabbix agent/mysql.replication.slave_sql_status["{$MYSQL.HOST}","{$MYSQL.PORT}"])=0

... to which I get ...

Incorrect item key "mysql.replication.slave_sql_status["{$MYSQL.HOST}","{$MYSQL.PORT}"]" provided for trigger expression on "MySQL by Zabbix agent".

Please help me save a few hairs on my head on this one. :-)

[kbcetn]

https://www.zabbix.com/forum/zabbix-...rrect-item-key helped some, but now I'm getting errors trying to get the value (Get value from agent failed). :-/ As you can see above, I am getting values (second code block) from the command-line.

[cyber]

Second code block only says, that agent "should" be able to get that info (testing item directly on agent). Do you actually have that item attached to the host also?