Precompiled binaries (agent, sender, get) might not work on 64bit systems with glibc versions older than 2.5. Common symptom is failing to start with the error message: Floating point exception. Use older versions graphs DejaVu font is now used for graphs for nice looking text - and for Unicode capabilities. 2.5 Improved map editing Zabbix supports network maps where monitored environment can be laid out on a support libssh2 Required for SSH support. Version 1.0 or higher. fping Required for ICMP ping items. 2.5 Choice of database engine Zabbix Server and Proxy support five database engines: • IBM DB2 • MySQL

condition calculation Time required on 100 000 unsorted values has been reduced from 133 seconds to 2.5 seconds. This low-level improvement should help with frontend performance on large installations. int, str, text, log For example: (previous value;last value=abschange) 1;5=4 3;1=2 0;- 2.5=2.5 For strings returns: 0 - values are equal 1 - values differ avg (sec|#num,) int, str, text, log For example: (previous value;last value=change) 1;5=+4 3;1=-2 0;-2.5=- 2.5 For strings returns: 0 - values are equal 1 - values differ count (sec|#num,,

export via proxy modules. (Custom multipliers won’t be applied, deltas won’t be calcu- lated, etc.) 2.5 Building modules Modules are currently meant to be built inside Zabbix source tree, because the module a1*t + a2*t2 + ... + an*tn exponential x = a*exp(b*t) logarithmic x = a + b*log(t) power x = a*tb 2.5 Modes (forecast only) Every time a trigger function is evaluated it gets data from the specified int, str, text, log For example: (previous value;last value=abschange) 1;5=4 3;1=2 0;- 2.5=2.5 For strings returns: 0 - values are equal 1 - values differ avg (sec|#num,)

log 例如: (前一个值; 后一个值 = 绝对值) 1;5=4 3;1=2 0;-2.5=2.5 值类型为 str 型的返回值: 0 - 两个 str 相等 1 - 两个 str 不相等 例如: (前一个值; 后一个值 = 绝对值) 1;5=4 3;1=2 0;-2.5=2.5 值类型为 str 型的返回值: 0 - 两个 str 相等 1 - 两个 str 不相等 change 最近获取值与之前获取值的 差。支持值类型: flo t, int, str, text, log 例如: (前一个值; 后一个值 = 差） 1;5=+4 3;1=-2 0;-2.5=-2.5 可与abschange函数对照。 值类型为 str 型的返回值: 0 - 两个 str 相等 1 - 两个 str 不相等 The amount of difference between float, int, str, text, log For example: (previous value;last value=change) 1;5=+4 3;1=-2 0;-2.5=-2.5 See also: abschange for comparison For strings returns: 0 - values are equal 1 - values differ

Note: Only raw values are available for export via proxy modules (no preprocessing will be applied). 2.5 Building modules 255 Modules are currently meant to be built inside Zabbix source tree, because the a1*t + a2*t2 + ... + an*tn exponential x = a*exp(b*t) logarithmic x = a + b*log(t) power x = a*tb 2.5 Modes (forecast only) Every time a trigger function is evaluated it gets data from the specified int, str, text, log For example: (previous value;last value=abschange) 1;5=4 3;1=2 0;- 2.5=2.5 For strings returns: 0 - values are equal 1 - values differ avg (sec|#num,)

log 例如: (前一个值; 后一个值 = 绝对值) 1;5=4 3;1=2 0;-2.5=2.5 值类型为 str 型的返回值: 0 - 两个 str 相等 1 - 两个 str 不相等 例如: (前一个值; 后一个值 = 绝对值) 1;5=4 3;1=2 0;-2.5=2.5 值类型为 str 型的返回值: 0 - 两个 str 相等 1 - 两个 str 不相等 184 最近获取值与之前获取值的 差。支持值类型: flo t, int, str, text, log 例如: (前一个值; 后一个值 = 差） 1;5=+4 3;1=-2 0;-2.5=-2.5 可与abschange函数对照。 值类型为 str 型的返回值: 0 - 两个 str 相等 1 - 两个 str 不相等 The amount of difference between float, int, str, text, log For example: (previous value;last value=change) 1;5=+4 3;1=-2 0;-2.5=-2.5 See also: abschange for comparison For strings returns: 0 - values are equal 1 - values differ

log 例如: (前一个值; 后一个值 = 绝对值) 1;5=4 3;1=2 0;-2.5=2.5 值类型为 str 型的返回值: 0 - 两个 str 相等 1 - 两个 str 不相等 例如: (前一个值; 后一个值 = 绝对值) 1;5=4 3;1=2 0;-2.5=2.5 值类型为 str 型的返回值: 0 - 两个 str 相等 1 - 两个 str 不相等 change 最近获取值与之前获取值的 差。支持值类型: flo t, int, str, text, log 例如: (前一个值; 后一个值 = 差） 1;5=+4 3;1=-2 0;-2.5=-2.5 可与abschange函数对照。 值类型为 str 型的返回值: 0 - 两个 str 相等 1 - 两个 str 不相等 181 The amount of difference float, int, str, text, log For example: (previous value;last value=change) 1;5=+4 3;1=-2 0;-2.5=-2.5 See also: abschange for comparison For strings returns: 0 - values are equal 1 - values differ

log 例如: (前一个值; 后一个值 = 绝对值) 1;5=4 3;1=2 0;-2.5=2.5 值类型为 str 型的返回值: 0 - 两个 str 相等 1 - 两个 str 不相等 例如: (前一个值; 后一个值 = 绝对值) 1;5=4 3;1=2 0;-2.5=2.5 值类型为 str 型的返回值: 0 - 两个 str 相等 1 - 两个 str 不相等 change 最近获取值与之前获取值的 差。支持值类型: flo t, int, str, text, log 例如: (前一个值; 后一个值 = 差） 1;5=+4 3;1=-2 0;-2.5=-2.5 可与abschange函数对照。 值类型为 str 型的返回值: 0 - 两个 str 相等 1 - 两个 str 不相等 194 The amount of difference float, int, str, text, log For example: (previous value;last value=change) 1;5=+4 3;1=-2 0;-2.5=-2.5 See also: abschange for comparison For strings returns: 0 - values are equal 1 - values differ

end of history sync procedure after data is written into Zabbix database and saved in value cache. 2.5 Building modules Modules are currently meant to be built inside Zabbix source tree, because the module a1*t + a2*t2 + ... + an*tn exponential x = a*exp(b*t) logarithmic x = a + b*log(t) power x = a*tb 2.5 Modes (forecast only) Every time a trigger function is evaluated it gets data from the specified int, str, text, log For example: (previous value;last value=abschange) 1;5=4 3;1=2 0;- 2.5=2.5 For strings returns: 0 - values are equal 1 - values differ avg (sec|#num,)

end of history sync procedure after data is written into Zabbix database and saved in value cache. 2.5 Building modules Modules are currently meant to be built inside Zabbix source tree, because the module a1*t + a2*t2 + ... + an*tn exponential x = a*exp(b*t) logarithmic x = a + b*log(t) power x = a*tb 2.5 Modes (forecast only) Every time a trigger function is evaluated it gets data from the specified int, str, text, log For example: (previous value;last value=abschange) 1;5=4 3;1=2 0;- 2.5=2.5 For strings returns: 0 - values are equal 1 - values differ avg (sec|#num,)