diff --git a/batch/scheduler/host-scheduler.js b/batch/scheduler/host-scheduler.js
index 5cd238bd..99526e81 100644
--- a/batch/scheduler/host-scheduler.js
+++ b/batch/scheduler/host-scheduler.js
@@ -50,7 +50,7 @@ HostScheduler.prototype.getCapacityProvider = function(host) {
         }
     }
 
-    var fixedCapacity = global.settings.batch_capacity_fixed_amount || 2;
+    var fixedCapacity = global.settings.batch_capacity_fixed_amount || 4;
     debug('Using strategy=fixed capacity=%d', fixedCapacity);
     return new FixedCapacity(fixedCapacity);
 };
diff --git a/config/environments/development.js.example b/config/environments/development.js.example
index 32bc65e8..0e2bce87 100644
--- a/config/environments/development.js.example
+++ b/config/environments/development.js.example
@@ -41,8 +41,8 @@ module.exports.batch_capacity_strategy = 'fixed';
 // Applies when strategy='fixed'.
 // Number of simultaneous users running queries in the same host.
 // It will use 1 as min.
-// Default 2.
-module.exports.batch_capacity_fixed_amount = 2;
+// Default 4.
+module.exports.batch_capacity_fixed_amount = 4;
 // Applies when strategy='http-simple' or strategy='http-load'.
 // HTTP endpoint to check db host load.
 // Helps to decide the number of simultaneous users running queries in that host.
diff --git a/config/environments/production.js.example b/config/environments/production.js.example
index 527d6d63..2411a6bb 100644
--- a/config/environments/production.js.example
+++ b/config/environments/production.js.example
@@ -42,8 +42,8 @@ module.exports.batch_capacity_strategy = 'fixed';
 // Applies when strategy='fixed'.
 // Number of simultaneous users running queries in the same host.
 // It will use 1 as min.
-// Default 2.
-module.exports.batch_capacity_fixed_amount = 2;
+// Default 4.
+module.exports.batch_capacity_fixed_amount = 4;
 // Applies when strategy='http-simple' or strategy='http-load'.
 // HTTP endpoint to check db host load.
 // Helps to decide the number of simultaneous users running queries in that host.
diff --git a/config/environments/staging.js.example b/config/environments/staging.js.example
index 82a52fc8..4fa2f10d 100644
--- a/config/environments/staging.js.example
+++ b/config/environments/staging.js.example
@@ -42,8 +42,8 @@ module.exports.batch_capacity_strategy = 'fixed';
 // Applies when strategy='fixed'.
 // Number of simultaneous users running queries in the same host.
 // It will use 1 as min.
-// Default 2.
-module.exports.batch_capacity_fixed_amount = 2;
+// Default 4.
+module.exports.batch_capacity_fixed_amount = 4;
 // Applies when strategy='http-simple' or strategy='http-load'.
 // HTTP endpoint to check db host load.
 // Helps to decide the number of simultaneous users running queries in that host.
diff --git a/config/environments/test.js.example b/config/environments/test.js.example
index 17aa5e85..203e5e39 100644
--- a/config/environments/test.js.example
+++ b/config/environments/test.js.example
@@ -39,8 +39,8 @@ module.exports.batch_capacity_strategy = 'fixed';
 // Applies when strategy='fixed'.
 // Number of simultaneous users running queries in the same host.
 // It will use 1 as min.
-// Default 2.
-module.exports.batch_capacity_fixed_amount = 2;
+// Default 4.
+module.exports.batch_capacity_fixed_amount = 4;
 // Applies when strategy='http-simple' or strategy='http-load'.
 // HTTP endpoint to check db host load.
 // Helps to decide the number of simultaneous users running queries in that host.