The ngx_stream_split_clients_module module (1.11.3) creates variables suitable for A/B testing, also known as split testing.
Example Configuration
stream {
...
split_clients "${remote_addr}AAA" $upstream {
0.5% feature_test1;
2.0% feature_test2;
* production;
}
server {
...
proxy_pass $upstream;
}
}
Directives
Syntax:
split_clients string $variable { ... }
Default:
—
Context:
stream
Creates a variable for A/B testing, for example:
split_clients "${remote_addr}AAA" $variant {
0.5% .one;
2.0% .two;
* "";
}
The value of the original string is hashed using MurmurHash2. In the example given, hash values from 0 to 21474835 (0.5%) correspond to the value ".one" of the $variant variable, hash values from 21474836 to 107374180 (2%) correspond to the value ".two", and hash values from 107374181 to 4294967295 correspond to the value "" (an empty string).
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