Double requests/sec limit; update docs

server/config.go

@@ -30,14 +30,14 @@ const (
 
 // Defines all per-visitor limits
 // - per visitor subscription limit: max number of subscriptions (active HTTP connections) per per-visitor/IP
-// - per visitor request limit: max number of PUT/GET/.. requests (here: 60 requests bucket, replenished at a rate of one per 10 seconds)
+// - per visitor request limit: max number of PUT/GET/.. requests (here: 60 requests bucket, replenished at a rate of one per 5 seconds)
 // - per visitor email limit: max number of emails (here: 16 email bucket, replenished at a rate of one per hour)
 // - per visitor attachment size limit: total per-visitor attachment size in bytes to be stored on the server
 // - per visitor attachment daily bandwidth limit: number of bytes that can be transferred to/from the server
 const (
 	DefaultVisitorSubscriptionLimit             = 30
 	DefaultVisitorRequestLimitBurst             = 60
-	DefaultVisitorRequestLimitReplenish         = 10 * time.Second
+	DefaultVisitorRequestLimitReplenish         = 5 * time.Second
 	DefaultVisitorEmailLimitBurst               = 16
 	DefaultVisitorEmailLimitReplenish           = time.Hour
 	DefaultVisitorAttachmentTotalSizeLimit      = 100 * 1024 * 1024 // 100 MB

server/server.yml

@@ -137,9 +137,12 @@
 # Rate limiting: Allowed GET/PUT/POST requests per second, per visitor:
 # - visitor-request-limit-burst is the initial bucket of requests each visitor has
 # - visitor-request-limit-replenish is the rate at which the bucket is refilled
+# - visitor-request-limit-exempt-hosts is a comma-separated list of hostnames and IPs to be
+#   exempt from request rate limiting; hostnames are resolved at the time the server is started
 #
 # visitor-request-limit-burst: 60
-# visitor-request-limit-replenish: "10s"
+# visitor-request-limit-replenish: "5s"
+# visitor-request-limit-exempt-hosts: ""
 
 # Rate limiting: Allowed emails per visitor:
 # - visitor-email-limit-burst is the initial bucket of emails each visitor has