smengcl commented on a change in pull request #137: HDDS-2455. Implement MiniOzoneHAClusterImpl#getOMLeader URL: https://github.com/apache/hadoop-ozone/pull/137#discussion_r350457146
########## File path: hadoop-ozone/integration-test/src/test/java/org/apache/hadoop/ozone/TestMiniOzoneHACluster.java ########## @@ -0,0 +1,108 @@ +/** + * 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 + * <p> + * http://www.apache.org/licenses/LICENSE-2.0 + * <p> + * 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.hadoop.ozone; + +import org.apache.hadoop.hdds.conf.OzoneConfiguration; +import org.apache.hadoop.ozone.client.ObjectStore; +import org.apache.hadoop.ozone.client.OzoneClientFactory; +import org.apache.hadoop.ozone.om.OzoneManager; +import org.apache.hadoop.test.GenericTestUtils; +import org.junit.After; +import org.junit.Assert; +import org.junit.Before; +import org.junit.Rule; +import org.junit.Test; +import org.junit.rules.ExpectedException; +import org.junit.rules.Timeout; + +import java.io.IOException; +import java.util.UUID; +import java.util.concurrent.TimeoutException; + +import static org.apache.hadoop.ozone.OzoneConfigKeys.OZONE_ACL_ENABLED; +import static org.apache.hadoop.ozone.OzoneConfigKeys.OZONE_ADMINISTRATORS_WILDCARD; +import static org.apache.hadoop.ozone.OzoneConfigKeys.OZONE_OPEN_KEY_EXPIRE_THRESHOLD_SECONDS; + +/** + * This class tests MiniOzoneHAClusterImpl. + */ +public class TestMiniOzoneHACluster { + + private MiniOzoneHAClusterImpl cluster = null; + private ObjectStore objectStore; + private OzoneConfiguration conf; + private String clusterId; + private String scmId; + private String omServiceId; + private int numOfOMs = 3; + + @Rule + public ExpectedException exception = ExpectedException.none(); + + @Rule + public Timeout timeout = new Timeout(300_000); + + /** + * Create a MiniOzoneHAClusterImpl for testing. + * + * @throws IOException + */ + @Before + public void init() throws Exception { + conf = new OzoneConfiguration(); + clusterId = UUID.randomUUID().toString(); + scmId = UUID.randomUUID().toString(); + omServiceId = "omServiceId1"; + conf.setBoolean(OZONE_ACL_ENABLED, true); + conf.set(OzoneConfigKeys.OZONE_ADMINISTRATORS, + OZONE_ADMINISTRATORS_WILDCARD); + conf.setInt(OZONE_OPEN_KEY_EXPIRE_THRESHOLD_SECONDS, 2); + cluster = (MiniOzoneHAClusterImpl) MiniOzoneCluster.newHABuilder(conf) + .setClusterId(clusterId) + .setScmId(scmId) + .setOMServiceId(omServiceId) + .setNumOfOzoneManagers(numOfOMs) + .build(); + cluster.waitForClusterToBeReady(); + objectStore = OzoneClientFactory.getRpcClient(omServiceId, conf) + .getObjectStore(); + } + + /** + * Shutdown MiniOzoneHAClusterImpl. + */ + @After + public void shutdown() { + if (cluster != null) { + cluster.shutdown(); + } + } + + @Test + public void testGetOMLeader() throws InterruptedException, TimeoutException { + // Wait for OM leader election to finish + GenericTestUtils.waitFor(() -> cluster.getOMLeader() != null, + 100, 30000); Review comment: A note for myself: 30s is longer than OZONE_OM_LEADER_ELECTION_MINIMUM_TIMEOUT_DURATION_DEFAULT (1s). Should be good enough. BTW is there a way to reliably wait for leader election to finish? @bharatviswa504 ---------------------------------------------------------------- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: [email protected] With regards, Apache Git Services --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
