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Incident report
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Resolution: Won't fix
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Major
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None
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2.2.6rc1
I have a usermacro {$CPU_UTILIZATION_TIME} = 4
I have also trigger:
Name: "CPU Utilization > 10 % for {$CPU_UTILIZATION_TIME} hours"
If I try to save trigger with expression like this:
{it0:test.item.avg({$CPU_UTILIZATION_TIME}h)}>10
frontend returns this error:
Cannot implode expression "{it0:test.item.avg({$CPU_UTILIZATION_TIME}h)}>10". Incorrect trigger function "max({$CPU_UTILIZATION_TIME}h)" provided in expression. Invalid first parameter. ...
So it's not allowed by frontend.
But when I hack the expression in database directly - it appeared to be actually working on server side:
17399:20140827:125700.685 Starting Zabbix Server. Zabbix 2.2.4rc3 (revision 46631). ... 17405:20140827:125716.084 trapper got '{"request":"sender data","data":[{"host":"it0","key":"test.item","value":"3000"}]}' ... 17414:20140827:125720.710 In DCmass_add_history() 17414:20140827:125720.710 query [txnlev:1] [insert into history_uint (itemid,clock,ns,value) values (23745,1409133436,85023061,3000);] 17414:20140827:125720.711 In zbx_vc_add_value() itemid:23745 value_type:3 timestamp:1409133436.85023061 17414:20140827:125720.711 End of zbx_vc_add_value():FAIL 17414:20140827:125720.711 End of DCmass_add_history() 17414:20140827:125720.711 In DCmass_update_triggers() 17414:20140827:125720.711 In evaluate_expressions() tr_num:1 17414:20140827:125720.711 In substitute_simple_macros() data:'{13324}>10' 17414:20140827:125720.711 End substitute_simple_macros() data:'{13324}>10' 17414:20140827:125720.711 In substitute_functions() 17414:20140827:125720.711 In zbx_extract_functionids() tr_num:1 17414:20140827:125720.711 End of zbx_extract_functionids() functionids_num:1 17414:20140827:125720.711 In zbx_populate_function_items() functionids_num:1 17414:20140827:125720.711 End of zbx_populate_function_items() ifuncs_num:1 17414:20140827:125720.711 In zbx_evaluate_item_functions() ifuncs_num:1 17414:20140827:125720.711 In evaluate_function() function:'it0:test.item.avg({$CPU_UTILIZATION_TIME}h)' 17414:20140827:125720.711 In evaluate_AVG() 17414:20140827:125720.712 In __get_function_parameter_uint31() parameters:'{$CPU_UTILIZATION_TIME}h' Nparam:1 17414:20140827:125720.712 In substitute_simple_macros() data:'{$CPU_UTILIZATION_TIME}h' 17414:20140827:125720.712 In DCget_user_macro() macro:'{$CPU_UTILIZATION_TIME}' 17414:20140827:125720.712 In DCget_host_macro() macro:'{$CPU_UTILIZATION_TIME}' 17414:20140827:125720.712 End of DCget_host_macro():SUCCEED 17414:20140827:125720.712 End of DCget_user_macro() 17414:20140827:125720.712 End substitute_simple_macros() data:'1h' 17414:20140827:125720.712 __get_function_parameter_uint31() flag:0 value:3600 17414:20140827:125720.712 End of __get_function_parameter_uint31():SUCCEED 17414:20140827:125720.712 In zbx_vc_get_value_range() itemid:23745 value_type:3 seconds:3600 count:0 timestamp:1409133436 17414:20140827:125720.712 query [txnlev:1] [select clock,ns,value from history_uint where itemid=23745 and clock>1409129836 and clock<=1409133440] 17414:20140827:125720.713 End of zbx_vc_get_value_range():SUCCEED count:6 cached:1 17414:20140827:125720.713 End of evaluate_AVG():SUCCEED 17414:20140827:125720.713 End of evaluate_function():SUCCEED value:'1121.5' 17414:20140827:125720.713 End of zbx_evaluate_item_functions() 17414:20140827:125720.713 In zbx_substitute_functions_results() ifuncs_num:1 tr_num:1 17414:20140827:125720.713 zbx_substitute_functions_results() expression[0]:'{13324}>10' => '1121.5>10' 17414:20140827:125720.713 End of zbx_substitute_functions_results() 17414:20140827:125720.713 End of substitute_functions() 17414:20140827:125720.713 In evaluate() expression:'1121.5>10' 17414:20140827:125720.713 End of evaluate() value:1.000000 17414:20140827:125720.713 End of evaluate_expressions() 17414:20140827:125720.713 In process_triggers() values_num:1 17414:20140827:125720.713 In process_trigger() triggerid:13703 value:1(0) new_value:1 17414:20140827:125720.713 End of process_trigger():FAIL 17414:20140827:125720.713 End of process_triggers()
Could you please allow to save such expressions in frontend?