Github user SolidWallOfCode commented on a diff in the pull request:
https://github.com/apache/trafficserver/pull/1210#discussion_r87404997
--- Diff: plugins/experimental/log_requests/README ---
@@ -0,0 +1,37 @@
+log_requests
+==============
+
+This plugin is used to help debug errored out transactions.
+We define errored out as any transaction returning a 4xx/5xx
+response code. By default, all transactions that return a
+4xx/5xx response code to the client will get its
+request/response headers logged into error.log.
+
+We also provide a blacklist flag via the plugin arguments. Take
+for example this config in plugin.config:
+
+ log_requests.so --no-log 414 502
+
+Then log_requests would log every 4xx/5xx response code transaction
+EXCEPT for 414 and 502.
+
+
+Usage
+------
+When compiling ATS, run configure with the following flags:
+
+ ./configure --enable-experimental-plugins
+
+
+Then in plugin.config:
+
+ log_requests.so [--log-proxy] [--no-log [error code 1[,error code
2[,...]]]]
+
+ In other words, the --log-proxy and --no-log flags are optional.
+ --no-log should be followed with a comma separated list of error
+ codes to blacklist.
+
+ Note: There is an interesting bug where if you want to enable
+ --log-proxy, it has to come before the --no-log flag. I'm not
+ sure why this happens, but you'll have to just live with it
+ until I figure it out.
--- End diff --
See previous comment ^
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