Issue with nodata trigger expression

[gsbiju]

I have created three triggers using host items. The following are the expressions

Trigger 1:
1) {master:heapmem.nodata(240)}=1&{slave:heapmem.noda ta(240)}=1 -> this is to check data did come through in the past 240 secs
Trigger 2:
2) {master:heapmem.max(61,0)}=0...

[restrada]

Every 3 minutes, I am running a smoke test using an external script with the total time, in seconds, as the output. Ubuntu 12.04 server, Zabbix 2.0.4.

I created a trigger with the nodata function, but it doesn't get activated.

Here is an example of running it manually:...