diff --git a/metadata/service/aggregator/single.yml b/metadata/service/aggregator/single.yml
index 9db8b69..7e814c5 100644
--- a/metadata/service/aggregator/single.yml
+++ b/metadata/service/aggregator/single.yml
@@ -3,7 +3,10 @@
 classes:
 - service.heka.support
 parameters:
+  _param:
+    aggregator_poolsize: 100
   heka:
     aggregator:
       enabled: true
       influxdb_time_precision: ms
+      poolsize: ${_param:aggregator_poolsize}
diff --git a/metadata/service/log_collector/single.yml b/metadata/service/log_collector/single.yml
index f857da5..5160c35 100644
--- a/metadata/service/log_collector/single.yml
+++ b/metadata/service/log_collector/single.yml
@@ -3,6 +3,9 @@
 classes:
 - service.heka.support
 parameters:
+  _param:
+    log_collector_poolsize: 100
   heka:
     log_collector:
       enabled: true
+      poolsize: ${_param:log_collector_poolsize}
diff --git a/metadata/service/metric_collector/single.yml b/metadata/service/metric_collector/single.yml
index 1d1a62a..ad183a2 100644
--- a/metadata/service/metric_collector/single.yml
+++ b/metadata/service/metric_collector/single.yml
@@ -3,7 +3,10 @@
 classes:
 - service.heka.support
 parameters:
+  _param:
+    metric_collector_poolsize: 100
   heka:
     metric_collector:
       enabled: true
       influxdb_time_precision: ms
+      poolsize: ${_param:metric_collector_poolsize}
diff --git a/metadata/service/remote_collector/single.yml b/metadata/service/remote_collector/single.yml
index e141799..120414c 100644
--- a/metadata/service/remote_collector/single.yml
+++ b/metadata/service/remote_collector/single.yml
@@ -3,7 +3,10 @@
 classes:
 - service.heka.support
 parameters:
+  _param:
+    remote_collector_poolsize: 100
   heka:
     remote_collector:
       enabled: true
       influxdb_time_precision: ms
+      poolsize: ${_param:remote_collector_poolsize}