support heterogenous cluster
diff --git a/pregelix/pregelix-example/src/test/resources/jobs/TriangleCounting.xml b/pregelix/pregelix-example/src/test/resources/jobs/TriangleCounting.xml
index 951ac6f..80cea20 100644
--- a/pregelix/pregelix-example/src/test/resources/jobs/TriangleCounting.xml
+++ b/pregelix/pregelix-example/src/test/resources/jobs/TriangleCounting.xml
@@ -123,9 +123,10 @@
<property><name>mapred.inmem.merge.threshold</name><value>1000</value></property>
<property><name>hadoop.logfile.size</name><value>10000000</value></property>
<property><name>pregelix.vertexInputFormatClass</name><value>edu.uci.ics.pregelix.example.trianglecounting.TextTriangleCountingInputFormat</value></property>
-<property><name>pregelix.aggregatorClass</name><value>class edu.uci.ics.pregelix.api.util.GlobalCountAggregator,class edu.uci.ics.pregelix.example.trianglecounting.TriangleCountingAggregator</value></property>
+<property><name>pregelix.aggregatorClass</name><value>edu.uci.ics.pregelix.example.trianglecounting.TriangleCountingAggregator</value></property>
<property><name>mapred.job.queue.name</name><value>default</value></property>
<property><name>mapred.job.tracker.persist.jobstatus.active</name><value>false</value></property>
+<property><name>pregelix.incStateLength</name><value>true</value></property>
<property><name>mapred.reduce.slowstart.completed.maps</name><value>0.05</value></property>
<property><name>topology.script.number.args</name><value>100</value></property>
<property><name>mapred.skip.map.max.skip.records</name><value>0</value></property>