Github user paul-rogers commented on a diff in the pull request:
https://github.com/apache/drill/pull/1027#discussion_r151587168
--- Diff:
contrib/storage-kafka/src/test/java/org/apache/drill/exec/store/kafka/cluster/EmbeddedZKQuorum.java
---
@@ -0,0 +1,83 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.drill.exec.store.kafka.cluster;
+
+import java.io.File;
+import java.io.IOException;
+import java.net.InetSocketAddress;
+import java.net.ServerSocket;
+
+import org.apache.commons.io.FileUtils;
+import org.apache.drill.exec.store.kafka.QueryConstants;
+import org.apache.zookeeper.server.NIOServerCnxnFactory;
+import org.apache.zookeeper.server.ZooKeeperServer;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+public class EmbeddedZKQuorum implements QueryConstants {
--- End diff --
Drill already has this concept. See `TestDrillbitResilience` for a test
that starts multiple Drillbits and uses ZK to coordinate.
---
