From 0dc39ce84baea997ef5cca821e5abff97a365f12 Mon Sep 17 00:00:00 2001
From: Matias Alejo Garcia <ematiu@gmail.com>
Date: Tue, 1 Mar 2016 17:21:41 -0300
Subject: [PATCH] .

---
 app/controllers/addresses.js |  3 ++-
 app/models/Address.js        | 17 +++++++++++++++--
 2 files changed, 17 insertions(+), 3 deletions(-)

diff --git a/app/controllers/addresses.js b/app/controllers/addresses.js
index e348470..90618dd 100644
--- a/app/controllers/addresses.js
+++ b/app/controllers/addresses.js
@@ -11,6 +11,7 @@ var async = require('async');
 
 var MAX_BATCH_SIZE = 100;
 var RPC_CONCURRENCY = 5;
+var SIZE_TO_ENABLE_DEAD_CACHE=100;
 
 var tDb = require('../../lib/TransactionDb').default();
 
@@ -47,7 +48,7 @@ var getAddrs = function(req, res, next) {
     var addrStrs = req.param('addrs');
     var s = addrStrs.split(',');
     if (s.length === 0) return as;
-    var enableDeadAddresses = s.length > 100;
+    var enableDeadAddresses = s.length > SIZE_TO_ENABLE_DEAD_CACHE;
     for (var i = 0; i < s.length; i++) {
       var a = new Address(s[i], enableDeadAddresses);
       as.push(a);
diff --git a/app/models/Address.js b/app/models/Address.js
index 0e15163..98d10a8 100644
--- a/app/models/Address.js
+++ b/app/models/Address.js
@@ -13,7 +13,9 @@ var TransactionDb = imports.TransactionDb || require('../../lib/TransactionDb').
 var BlockDb = imports.BlockDb || require('../../lib/BlockDb').default();
 var config = require('../../config/config');
 var CONCURRENCY = 5;
-var DAYS_TO_DEAD = 40;
+//var DAYS_TO_DEAD = 40;
+var DAYS_TO_DEAD = 1;
+var MAX_CACHE_KEYS = 100;
 
 var deadCache = {};
 
@@ -100,7 +102,18 @@ Address.prototype.setCache = function() {
   this.cached = true;
   deadCache[this.addrStr] = this;
 
-  console.log('%%%%%%%% cache size:', _.keys(deadCache).length); //TODO
+  var size = _.keys(deadCache).length;
+
+  console.log('%%%%%%%% cache size:', size); //TODO
+  if (size > MAX_CACHE_KEYS) {
+    console.log('%%%%%%%% deleting ~ 20% of the entries...');
+
+    for (var prop in deadCache)
+        if (Math.random() < 0.2)
+          delete deadCache[prop];
+
+    console.log('%%%%%%%% cache size:', size); //TODO
+  }
   // TODO expire it...
 };