in_prometheus: do not disclosure error details for client - #259
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It is reasonable to logging error, but no need to disclose detail for client. Signed-off-by: Kentaro Hayashi <hayashi@clear-code.com>
/metrics and /all_metrics are assumed that these API will be called periodically. If internal server error occurs continuously, it means that same error log will be recorded. That is incompatible behavior before. To record detailed logs as often as necessary, introduced `ignore_error_log_interval`. Fluentd itself have ignore_repeated_log_interval and ignore_same_log_interval, but it must be system wide configuration. The scope of error handling should be limited to this plugin, so do not escalate system wide configuration. Signed-off-by: Kentaro Hayashi <hayashi@clear-code.com>
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It is reasonable to logging error, but no need to disclose detail for client.