server_traffic_status_limit_check_duplicate
Controls whether the NGINX stream server traffic status module checks for duplicate entries in traffic statistics.
Description
The server_traffic_status_limit_check_duplicate directive is an important configuration option within the NGINX Stream Server Traffic Status Module. When enabled, this directive allows the module to check for duplicate keys in the recorded traffic statistics. This is particularly useful when multiple entries might arise from concurrent processing of requests, which could skew traffic logs if not managed correctly. By preventing duplicates, the directive ensures that the overall traffic statistics reflect accurate and reliable data, thus improving the integrity of performance analysis and monitoring.
This directive is used as a flag, meaning it can simply be turned on or off. Upon enabling it by setting it to on, the module performs checks during its statistical calculations to ensure that unique entries are maintained in the recorded statistics. When set to off, duplicate entries might be allowed, which can lead to inflated or misleading metrics in monitored data. It's generally recommended to keep this option enabled unless you have specific reasons to tolerate duplicates.
Config Example
stream {
server {
listen 12345;
server_traffic_status on;
server_traffic_status_limit_check_duplicate on;
}
}Make sure to enable this directive if your application has a high traffic volume that may introduce duplicates.
Disabling this directive can lead to inaccurate traffic statistics, making monitoring less effective.