bshashikant commented on a change in pull request #1953: URL: https://github.com/apache/ozone/pull/1953#discussion_r583486288
########## File path: hadoop-ozone/integration-test/src/test/java/org/apache/hadoop/ozone/scm/TestStorageContainerManagerHA.java ########## @@ -0,0 +1,188 @@ +/** + * 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.hadoop.ozone.scm; + +import org.apache.hadoop.hdds.protocol.proto.HddsProtos; +import org.apache.hadoop.hdds.scm.container.ContainerID; +import org.apache.hadoop.hdds.scm.ha.SCMRatisServerImpl; +import org.apache.hadoop.hdds.scm.server.StorageContainerManager; +import org.apache.hadoop.ozone.MiniOzoneHAClusterImpl; +import org.apache.hadoop.ozone.client.ObjectStore; +import org.apache.hadoop.ozone.client.OzoneBucket; +import org.apache.hadoop.ozone.client.OzoneClientFactory; +import org.apache.hadoop.ozone.client.OzoneVolume; +import org.apache.hadoop.ozone.client.OzoneKey; +import org.apache.hadoop.ozone.client.io.OzoneInputStream; +import org.apache.hadoop.ozone.client.io.OzoneOutputStream; +import org.apache.hadoop.ozone.om.OzoneManager; +import org.apache.hadoop.ozone.om.helpers.OmKeyArgs; +import org.apache.hadoop.ozone.om.helpers.OmKeyInfo; +import org.apache.hadoop.ozone.om.helpers.OmKeyLocationInfo; +import org.junit.After; +import org.junit.Assert; +import org.junit.Before; +import org.junit.Test; + +import java.time.Instant; +import java.util.HashMap; +import java.util.List; + +import org.apache.hadoop.hdds.conf.OzoneConfiguration; +import org.apache.hadoop.ozone.MiniOzoneCluster; +import org.junit.Rule; + +import org.junit.rules.Timeout; + +import java.io.IOException; +import java.util.UUID; + +import static java.nio.charset.StandardCharsets.UTF_8; +import static org.apache.hadoop.hdds.client.ReplicationFactor.ONE; +import static org.apache.hadoop.hdds.client.ReplicationType.STAND_ALONE; + +/** + * Base class for Ozone Manager HA tests. + */ +public class TestStorageContainerManagerHA { + + private MiniOzoneHAClusterImpl cluster = null; + private OzoneConfiguration conf; + private String clusterId; + private String scmId; + private String omServiceId; + private static int numOfOMs = 3; + private String scmServiceId; + // TODO: 3 servers will not work until SCM HA configs are considered in + // SCM HA Ratis server init + private static int numOfSCMs = 3; + + + @Rule + public Timeout timeout = new Timeout(300_000); + + /** + * Create a MiniDFSCluster for testing. + * <p> + * Ozone is made active by setting OZONE_ENABLED = true + * + * @throws IOException + */ + @Before + public void init() throws Exception { + conf = new OzoneConfiguration(); + clusterId = UUID.randomUUID().toString(); + scmId = UUID.randomUUID().toString(); + omServiceId = "om-service-test1"; + scmServiceId = "scm-service-test1"; + cluster = (MiniOzoneHAClusterImpl) MiniOzoneCluster.newHABuilder(conf) + .setClusterId(clusterId) + .setScmId(scmId) + .setOMServiceId(omServiceId) + .setSCMServiceId(scmServiceId) + .setNumOfStorageContainerManagers(numOfSCMs) + .setNumOfOzoneManagers(numOfOMs) + .build(); + cluster.waitForClusterToBeReady(); + } + + /** + * Shutdown MiniDFSCluster. + */ + @After + public void shutdown() { + if (cluster != null) { + cluster.shutdown(); + } + } + + @Test + public void testAllSCMAreRunning() throws Exception { + int count = 0; + List<StorageContainerManager> scms = cluster.getStorageContainerManagers(); + Assert.assertEquals(numOfSCMs, scms.size()); + int peerSize = cluster.getStorageContainerManager().getScmHAManager() + .getRatisServer().getDivision().getGroup().getPeers().size(); + for (StorageContainerManager scm : scms) { + if (scm.checkLeader()) { + count++; + } + Assert.assertTrue(peerSize == numOfSCMs); + } + Assert.assertEquals(1, count); + count = 0; + List<OzoneManager> oms = cluster.getOzoneManagersList(); + Assert.assertEquals(numOfOMs, oms.size()); + for (OzoneManager om : oms) { + if (om.isLeaderReady()) { + count++; + } + } + Assert.assertEquals(1, count); + testPutKey(); + } + + public void testPutKey() throws IOException { + String volumeName = UUID.randomUUID().toString(); + String bucketName = UUID.randomUUID().toString(); + Instant testStartTime = Instant.now(); + ObjectStore store = + OzoneClientFactory.getRpcClient(cluster.getConf()).getObjectStore(); + String value = "sample value"; + store.createVolume(volumeName); + OzoneVolume volume = store.getVolume(volumeName); + volume.createBucket(bucketName); + OzoneBucket bucket = volume.getBucket(bucketName); + + String keyName = UUID.randomUUID().toString(); + + OzoneOutputStream out = bucket + .createKey(keyName, value.getBytes(UTF_8).length, STAND_ALONE, ONE, + new HashMap<>()); + out.write(value.getBytes(UTF_8)); + out.close(); + OzoneKey key = bucket.getKey(keyName); + Assert.assertEquals(keyName, key.getName()); + OzoneInputStream is = bucket.readKey(keyName); + byte[] fileContent = new byte[value.getBytes(UTF_8).length]; + is.read(fileContent); + Assert.assertEquals(value, new String(fileContent, UTF_8)); + Assert.assertFalse(key.getCreationTime().isBefore(testStartTime)); + Assert.assertFalse(key.getModificationTime().isBefore(testStartTime)); + is.close(); + final OmKeyArgs keyArgs = new OmKeyArgs.Builder().setVolumeName(volumeName) + .setBucketName(bucketName).setType(HddsProtos.ReplicationType.RATIS) + .setFactor(HddsProtos.ReplicationFactor.ONE).setKeyName(keyName) + .setRefreshPipeline(true).build(); + final OmKeyInfo keyInfo = cluster.getOzoneManager().lookupKey(keyArgs); + final List<OmKeyLocationInfo> keyLocationInfos = + keyInfo.getKeyLocationVersions().get(0).getBlocksLatestVersionOnly(); + final long containerID = keyLocationInfos.get(0).getContainerID(); + for (int k = 0; k < numOfSCMs; k++) { + StorageContainerManager scm = + cluster.getStorageContainerManagers().get(k); + // flush to DB on each SCM Review comment: Snapshot ensures whatever is in the log is applied. ---------------------------------------------------------------- This is an automated message from the Apache Git Service. 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