diff --git a/lib/cinder b/lib/cinder
index ce13b86..1e7f9c4 100644
--- a/lib/cinder
+++ b/lib/cinder
@@ -307,6 +307,9 @@
     iniset $CINDER_CONF keystone_authtoken admin_tenant_name $SERVICE_TENANT_NAME
     iniset $CINDER_CONF keystone_authtoken admin_password $SERVICE_PASSWORD
 
+    if [ -n "$API_WORKERS" ]; then
+        iniset $CINDER_CONF DEFAULT osapi_volume_workers "$API_WORKERS"
+    fi
 }
 
 # create_cinder_accounts() - Set up common required cinder accounts
diff --git a/lib/glance b/lib/glance
index 7a28b68..47dd38d 100644
--- a/lib/glance
+++ b/lib/glance
@@ -131,6 +131,10 @@
     # sections.
     iniset $GLANCE_API_CONF glance_store filesystem_store_datadir $GLANCE_IMAGE_DIR/
 
+    if [ -n "$API_WORKERS" ]; then
+        iniset $GLANCE_API_CONF DEFAULT workers "$API_WORKERS"
+    fi
+
     # Store the images in swift if enabled.
     if is_service_enabled s-proxy; then
         iniset $GLANCE_API_CONF DEFAULT default_store swift
diff --git a/lib/nova b/lib/nova
index b3a586c..367b916 100644
--- a/lib/nova
+++ b/lib/nova
@@ -516,6 +516,12 @@
     iniset $NOVA_CONF DEFAULT ec2_dmz_host "$EC2_DMZ_HOST"
     iniset_rpc_backend nova $NOVA_CONF DEFAULT
     iniset $NOVA_CONF glance api_servers "$GLANCE_HOSTPORT"
+
+    if [ -n "$API_WORKERS" ]; then
+        iniset $NOVA_CONF DEFAULT osci_compute_workers "$API_WORKERS"
+        iniset $NOVA_CONF DEFAULT ec2_workers "$API_WORKERS"
+        iniset $NOVA_CONF DEFAULT metadata_workers "$API_WORKERS"
+    fi
 }
 
 function init_nova_cells {