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Allow a range of output-http-workers with min and max. (#631)

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This provides the ability to have a maximum number of workers, yet still allow scaling down. The scaling down is important to stop timeouts happening with under-utilised workers.
Note, although the code has workers_min, workers_max, the settings option --output-http-workers has remained and becomes the "max" value. I did this to hopefully not break too much for others. The min will default to 1, so users will see dynamic scaling unless they also set min to be the same. This will probably benefit them as they will avoid potential timeouts when the traffic reduces. But something to be aware of.
This commit is contained in:
bruce34
2019-02-16 09:32:56 +01:00
committed by Leonid Bugaev
parent 267d6d0e2b
commit c693938ef9
2 changed files with 26 additions and 18 deletions
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settings.go
+4 -1
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@@ -149,8 +149,11 @@ func init() {
flag.Var(&Settings.outputHTTP, "output-http", "Forwards incoming requests to given http address.\n\t# Redirect all incoming requests to staging.com address \n\tgor --input-raw :80 --output-http http://staging.com")
flag.IntVar(&Settings.outputHTTPConfig.BufferSize, "output-http-response-buffer", 0, "HTTP response buffer size, all data after this size will be discarded.")
flag.IntVar(&Settings.outputHTTPConfig.workers, "output-http-workers", 0, "Gor uses dynamic worker scaling by default. Enter a number to run a set number of workers.")
flag.IntVar(&Settings.outputHTTPConfig.workersMin, "output-http-workers-min", 0, "Gor uses dynamic worker scaling. Enter a number to set a minimum number of workers. default = 1.")
flag.IntVar(&Settings.outputHTTPConfig.workersMax, "output-http-workers", 0, "Gor uses dynamic worker scaling. Enter a number to set a maximum number of workers. default = 0 = unlimited.")
flag.IntVar(&Settings.outputHTTPConfig.queueLen, "output-http-queue-len", 1000, "Number of requests that can be queued for output, if all workers are busy. default = 1000")
flag.IntVar(&Settings.outputHTTPConfig.redirectLimit, "output-http-redirects", 0, "Enable how often redirects should be followed.")
flag.DurationVar(&Settings.outputHTTPConfig.Timeout, "output-http-timeout", 5*time.Second, "Specify HTTP request/response timeout. By default 5s. Example: --output-http-timeout 30s")
flag.BoolVar(&Settings.outputHTTPConfig.TrackResponses, "output-http-track-response", false, "If turned on, HTTP output responses will be set to all outputs like stdout, file and etc.")