diff --git a/bin/node b/bin/node
index ffe40c05..a440d270 100755
--- a/bin/node
+++ b/bin/node
@@ -31,6 +31,7 @@ const node = new bcoin.fullnode({
   logLevel: 'debug',
   db: 'leveldb',
   persistent: true,
+  workers: true,
   listen: true,
   loader: require
 });
diff --git a/bin/spvnode b/bin/spvnode
index 0feb1fc5..000a2eb1 100755
--- a/bin/spvnode
+++ b/bin/spvnode
@@ -18,6 +18,7 @@ const node = bcoin.spvnode({
   logLevel: 'debug',
   db: 'leveldb',
   persistent: true,
+  workers: true,
   listen: true,
   loader: require
 });
diff --git a/lib/workers/child.js b/lib/workers/child.js
index e7f65b8e..55ca428e 100644
--- a/lib/workers/child.js
+++ b/lib/workers/child.js
@@ -28,8 +28,8 @@ function Child(file, env) {
 
   EventEmitter.call(this);
 
-  children.add(this);
   bindExit();
+  children.add(this);
 
   this.init(file, env);
 }
@@ -112,31 +112,43 @@ Child.prototype.destroy = function destroy() {
   this.child.kill('SIGTERM');
 };
 
-/*
- * Helpers
+/**
+ * Cleanup all child processes.
+ * @private
  */
 
 function bindExit() {
-  let onSighup, onSigint, onSigterm, onError;
-
   if (exitBound)
     return;
 
   exitBound = true;
 
-  onSighup = () => {
+  listenExit(() => {
+    for (let child of children)
+      child.destroy();
+  });
+}
+
+/**
+ * Listen for exit.
+ * @param {Function} handler
+ * @private
+ */
+
+function listenExit(handler) {
+  let onSighup = () => {
     process.exit(1 | 0x80);
   };
 
-  onSigint = () => {
+  let onSigint = () => {
     process.exit(2 | 0x80);
   };
 
-  onSigterm = () => {
+  let onSigterm = () => {
     process.exit(15 | 0x80);
   };
 
-  onError = (err) => {
+  let onError = (err) => {
     if (err && err.stack)
       console.error(err.stack + '');
     else
@@ -145,10 +157,7 @@ function bindExit() {
     process.exit(1);
   };
 
-  process.once('exit', () => {
-    for (let child of children)
-      child.destroy();
-  });
+  process.once('exit', handler);
 
   if (process.listenerCount('SIGHUP') === 0)
     process.once('SIGHUP', onSighup);
diff --git a/lib/workers/jobs.js b/lib/workers/jobs.js
index 25891dcf..1a6bf222 100644
--- a/lib/workers/jobs.js
+++ b/lib/workers/jobs.js
@@ -27,7 +27,7 @@ const jobs = exports;
 
 jobs.execute = function execute(p) {
   try {
-    return jobs._execute(p);
+    return jobs.handle(p);
   } catch (e) {
     return new packets.ErrorResultPacket(e);
   }
@@ -41,7 +41,7 @@ jobs.execute = function execute(p) {
  * @throws on unknown command
  */
 
-jobs._execute = function execute(p) {
+jobs.handle = function handle(p) {
   switch (p.cmd) {
     case packets.types.VERIFY:
       return jobs.verify(p.tx, p.view, p.flags);
diff --git a/lib/workers/master.js b/lib/workers/master.js
index 9fae03f7..1bc77155 100644
--- a/lib/workers/master.js
+++ b/lib/workers/master.js
@@ -1,5 +1,5 @@
 /*!
- * workers.js - worker processes for bcoin
+ * master.js - master process for bcoin
  * Copyright (c) 2014-2015, Fedor Indutny (MIT License)
  * Copyright (c) 2014-2017, Christopher Jeffrey (MIT License).
  * https://github.com/bcoin-org/bcoin
diff --git a/lib/workers/workerpool.js b/lib/workers/workerpool.js
index 3b5888c1..c702586d 100644
--- a/lib/workers/workerpool.js
+++ b/lib/workers/workerpool.js
@@ -25,11 +25,11 @@ const packets = require('./packets');
  * @constructor
  * @param {Object} options
  * @param {Number} [options.size=num-cores] - Max pool size.
- * @param {Number} [options.timeout=10000] - Execution timeout.
+ * @param {Number} [options.timeout=120000] - Execution timeout.
  * @property {Number} size
  * @property {Number} timeout
  * @property {Map} children
- * @property {Number} nonce
+ * @property {Number} uid
  */
 
 function WorkerPool(options) {
@@ -38,13 +38,14 @@ function WorkerPool(options) {
 
   EventEmitter.call(this);
 
+  this.enabled = false;
   this.size = getCores();
-  this.timeout = 60000;
-  this.children = new Map();
-  this.nonce = 0;
-  this.enabled = true;
+  this.timeout = 120000;
   this.file = process.env.BCOIN_WORKER_FILE || 'worker.js';
 
+  this.children = new Map();
+  this.uid = 0;
+
   this.set(options);
 }
 
@@ -142,7 +143,7 @@ WorkerPool.prototype.spawn = function spawn(id) {
  */
 
 WorkerPool.prototype.alloc = function alloc() {
-  let id = this.nonce++ % this.size;
+  let id = this.uid++ % this.size;
 
   if (!this.children.has(id))
     this.children.set(id, this.spawn(id));
@@ -191,7 +192,7 @@ WorkerPool.prototype.execute = function execute(packet, timeout) {
     return new Promise((resolve, reject) => {
       setImmediate(() => {
         try {
-          result = jobs._execute(packet);
+          result = jobs.handle(packet);
         } catch (e) {
           reject(e);
           return;
@@ -590,7 +591,7 @@ function PendingJob(worker, id, resolve, reject) {
  */
 
 PendingJob.prototype.start = function start(timeout) {
-  if (!timeout || timeout === -1)
+  if (!timeout || timeout <= 0)
     return;
 
   this.timer = setTimeout(() => {