add "slow height".

lib/bcoin/chain.js

@@ -105,7 +105,7 @@ Chain.prototype._init = function _init() {
 
   // Hook into events for debugging
   this.on('block', function(block, entry) {
-    if (self.height < 400000)
+    if (self.height < network.block.slowHeight)
       return;
 
     bcoin.debug('Block %s (%d) added to chain (%s)',

lib/bcoin/protocol/network.js

@@ -278,7 +278,15 @@ main.block = {
    * determine whether the chain is synced.
    */
 
-  maxTipAge: 24 * 60 * 60
+  maxTipAge: 24 * 60 * 60,
+
+  /**
+   * Height at which block processing is
+   * slow enough that we can output
+   * logs without spamming.
+   */
+
+  slowHeight: 400000
 };
 
 /**
@@ -492,7 +500,8 @@ testnet.block = {
   bip34hash: 'f88ecd9912d00d3f5c2a8e0f50417d3e415c75b3abe584346da9b32300000000',
   pruneAfterHeight: 1000,
   // maxTipAge: 0x7fffffff
-  maxTipAge: 24 * 60 * 60
+  maxTipAge: 24 * 60 * 60,
+  slowHeight: 700000
 };
 
 testnet.witness = false;
@@ -619,7 +628,8 @@ regtest.block = {
   bip34height: -1,
   bip34hash: null,
   pruneAfterHeight: 1000,
-  maxTipAge: 24 * 60 * 60
+  maxTipAge: 24 * 60 * 60,
+  slowHeight: 0x7fffffff
 };
 
 regtest.witness = false;
@@ -745,7 +755,8 @@ segnet3.block = {
   bip34height: -1,
   bip34hash: null,
   pruneAfterHeight: 1000,
-  maxTipAge: 0x7fffffff
+  maxTipAge: 0x7fffffff,
+  slowHeight: 0x7fffffff
 };
 
 segnet3.witness = true;
@@ -853,7 +864,8 @@ segnet4.block = {
   bip34height: -1,
   bip34hash: null,
   pruneAfterHeight: 1000,
-  maxTipAge: 0x7fffffff
+  maxTipAge: 0x7fffffff,
+  slowHeight: 0x7fffffff
 };
 
 segnet4.witness = true;