| /* |
| * 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.ambari.server.checks; |
| |
| import java.util.ArrayList; |
| import java.util.Arrays; |
| import java.util.List; |
| import java.util.Map; |
| |
| import org.apache.ambari.server.AmbariException; |
| import org.apache.ambari.server.controller.PrereqCheckRequest; |
| import org.apache.ambari.server.state.Cluster; |
| import org.apache.ambari.server.state.Service; |
| import org.apache.ambari.server.state.stack.PrereqCheckStatus; |
| import org.apache.ambari.server.state.stack.PrerequisiteCheck; |
| import org.apache.commons.lang.StringUtils; |
| |
| import com.google.inject.Singleton; |
| |
| /** |
| * The {@link ClientRetryPropertyCheck} class is used to check that the |
| * client retry properties for HIVE and OOZIE are set, but not for HDFS. |
| */ |
| @Singleton |
| @UpgradeCheck(group = UpgradeCheckGroup.CLIENT_RETRY_PROPERTY, required = true) |
| public class ClientRetryPropertyCheck extends AbstractCheckDescriptor { |
| |
| static final String HDFS_CLIENT_RETRY_DISABLED_KEY = "hdfs.client.retry.enabled.key"; |
| static final String HIVE_CLIENT_RETRY_MISSING_KEY = "hive.client.retry.missing.key"; |
| static final String OOZIE_CLIENT_RETRY_MISSING_KEY = "oozie.client.retry.missing.key"; |
| |
| /** |
| * Constructor. |
| */ |
| public ClientRetryPropertyCheck() { |
| super(CheckDescription.CLIENT_RETRY); |
| } |
| |
| /** |
| * {@inheritDoc} |
| */ |
| @Override |
| public boolean isApplicable(PrereqCheckRequest request) throws AmbariException { |
| return super.isApplicable(request, Arrays.asList("HDFS", "HIVE", "OOZIE"), false); |
| } |
| |
| /** |
| * {@inheritDoc} |
| */ |
| @Override |
| public void perform(PrerequisiteCheck prerequisiteCheck, PrereqCheckRequest request) throws AmbariException { |
| final Cluster cluster = clustersProvider.get().getCluster(request.getClusterName()); |
| Map<String, Service> services = cluster.getServices(); |
| |
| List<String> errorMessages = new ArrayList<String>(); |
| |
| // HDFS needs to actually prevent client retry since that causes them to try too long and not failover quickly. |
| if (services.containsKey("HDFS")) { |
| String clientRetryPolicyEnabled = getProperty(request, "hdfs-site", "dfs.client.retry.policy.enabled"); |
| if (null != clientRetryPolicyEnabled && Boolean.parseBoolean(clientRetryPolicyEnabled)) { |
| errorMessages.add(getFailReason(HDFS_CLIENT_RETRY_DISABLED_KEY, prerequisiteCheck, request)); |
| prerequisiteCheck.getFailedOn().add("HDFS"); |
| } |
| } |
| |
| // check hive client properties |
| if (services.containsKey("HIVE")) { |
| String hiveClientRetryCount = getProperty(request, "hive-site", "hive.metastore.failure.retries"); |
| if (null != hiveClientRetryCount && Integer.parseInt(hiveClientRetryCount) <= 0) { |
| errorMessages.add(getFailReason(HIVE_CLIENT_RETRY_MISSING_KEY, prerequisiteCheck, request)); |
| prerequisiteCheck.getFailedOn().add("HIVE"); |
| } |
| } |
| |
| if (services.containsKey("OOZIE")) { |
| String oozieClientRetry = getProperty(request, "oozie-env", "content"); |
| if (null == oozieClientRetry || !oozieClientRetry.contains("-Doozie.connection.retry.count")) { |
| errorMessages.add(getFailReason(OOZIE_CLIENT_RETRY_MISSING_KEY, prerequisiteCheck, request)); |
| prerequisiteCheck.getFailedOn().add("OOZIE"); |
| } |
| } |
| |
| if (!errorMessages.isEmpty()) { |
| prerequisiteCheck.setFailReason(StringUtils.join(errorMessages, " ")); |
| prerequisiteCheck.setStatus(PrereqCheckStatus.FAIL); |
| } |
| } |
| } |