diff -r 83c8a5a47f70 -r 9f5edbef3f55 src/luan/host/run.luan
--- a/src/luan/host/run.luan	Thu Feb 22 18:38:45 2018 -0700
+++ b/src/luan/host/run.luan	Thu Feb 22 23:21:06 2018 -0700
@@ -6,6 +6,8 @@
 local Io = require "luan:Io.luan"
 local print = Io.print or error()
 local String = require "luan:String.luan"
+local Time = require "luan:Time.luan"
+local Thread = require "luan:Thread.luan"
 local Hosting = require "luan:host/Hosting.luan"
 local Logging = require "luan:logging/Logging.luan"
 local logger = Logging.logger "run"
@@ -31,3 +33,20 @@
 handler = SafeHandler.new(handler)
 local server = Server.ForAddress.new("127.0.0.1",8080,handler)
 server.start()
+
+
+
+local function remove_old_web_log_files()
+	local expired = Time.now() - Time.period{days=30}
+	local sites_dir = Io.schemes.file(Hosting.sites_dir)
+	for _, site in ipairs(sites_dir.children()) do
+		local web = site.child("site/private/local/logs/web")
+		for _, file in ipairs(web.children() or {}) do
+			if file.last_modified() < expired then
+				file.delete()
+			end
+		end
+	end
+end
+
+Thread.schedule( Time.period{days=1}, true, Thread.safe(remove_old_web_log_files,logger) )

diff -r 83c8a5a47f70 -r 9f5edbef3f55 src/luan/modules/Thread.luan
--- a/src/luan/modules/Thread.luan	Thu Feb 22 18:38:45 2018 -0700
+++ b/src/luan/modules/Thread.luan	Thu Feb 22 23:21:06 2018 -0700
@@ -3,6 +3,7 @@
 local Luan = require "luan:Luan.luan"
 local error = Luan.error
 local set_metatable = Luan.set_metatable or error()
+local try = Luan.try or error()
 
 
 local Thread = {}
@@ -11,6 +12,19 @@
 Thread.schedule = ThreadLuan.schedule
 Thread.sleep = ThreadLuan.sleep
 
+function Thread.safe(fn,logger)
+	return function()
+		try {
+			function()
+				fn()
+			end
+			catch = function(e)
+				logger.error(e)
+			end
+		}
+	end
+end
+
 --[[
 Thread.global = {}  -- shared across threads
 local map = ThreadLuan.GlobalMap.new()