diff --git a/system_test/mirror_maker_testsuite/config/mirror_consumer.properties b/system_test/mirror_maker_testsuite/config/mirror_consumer.properties
index ea415e6..bb1a1cc 100644
--- a/system_test/mirror_maker_testsuite/config/mirror_consumer.properties
+++ b/system_test/mirror_maker_testsuite/config/mirror_consumer.properties
@@ -9,4 +9,4 @@ auto.offset.reset=smallest
 socket.receive.buffer.bytes=1048576
 fetch.message.max.bytes=1048576
 zk.sync.time.ms=15000
-shallow.iterator.enable=true
+shallow.iterator.enable=false
diff --git a/system_test/mirror_maker_testsuite/testcase_5003/testcase_5003_properties.json b/system_test/mirror_maker_testsuite/testcase_5003/testcase_5003_properties.json
index 3807d84..f186298 100644
--- a/system_test/mirror_maker_testsuite/testcase_5003/testcase_5003_properties.json
+++ b/system_test/mirror_maker_testsuite/testcase_5003/testcase_5003_properties.json
@@ -110,7 +110,7 @@
       "entity_id": "10",
       "topic": "test_1",
       "threads": "5",
-      "compression-codec": "1",
+      "compression-codec": "2",
       "message-size": "500",
       "message": "100",
       "request-num-acks": "-1",