fapifta commented on a change in pull request #1456: URL: https://github.com/apache/hadoop-ozone/pull/1456#discussion_r503552977
########## File path: hadoop-ozone/ozone-manager/src/main/java/org/apache/hadoop/ozone/om/upgrade/OMUpgradeFinalizer.java ########## @@ -0,0 +1,328 @@ +/** + * 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.om.upgrade; + +import org.apache.hadoop.ozone.om.OzoneManager; +import org.apache.hadoop.ozone.om.exceptions.OMException; +import org.apache.hadoop.ozone.om.exceptions.OMException.ResultCodes; +import org.apache.hadoop.ozone.upgrade.UpgradeFinalizer; + +import java.io.IOException; +import java.util.ArrayList; +import java.util.List; +import java.util.Queue; +import java.util.concurrent.Callable; +import java.util.concurrent.ConcurrentLinkedQueue; + +import static org.apache.hadoop.ozone.om.exceptions.OMException.ResultCodes.*; +import static org.apache.hadoop.ozone.om.exceptions.OMException.ResultCodes.INVALID_REQUEST; +import static org.apache.hadoop.ozone.om.exceptions.OMException.ResultCodes.PERSIST_UPGRADE_TO_LAYOUT_VERSION_FAILED; +import static org.apache.hadoop.ozone.om.exceptions.OMException.ResultCodes.REMOVE_UPGRADE_TO_LAYOUT_VERSION_FAILED; +import static org.apache.hadoop.ozone.om.exceptions.OMException.ResultCodes.UPDATE_LAYOUT_VERSION_FAILED; +import static org.apache.hadoop.ozone.upgrade.UpgradeFinalizer.Status.FINALIZATION_DONE; +import static org.apache.hadoop.ozone.upgrade.UpgradeFinalizer.Status.FINALIZATION_IN_PROGRESS; + +/** + * UpgradeFinalizer implementation for the Ozone Manager service. + */ +public class OMUpgradeFinalizer implements UpgradeFinalizer<OzoneManager> { + + private static final OmUpgradeAction NOOP = a -> {}; + + private OMLayoutVersionManagerImpl versionManager; + private String clientID; + + private Queue<String> msgs = new ConcurrentLinkedQueue<>(); + private boolean isDone = false; + + public OMUpgradeFinalizer(OMLayoutVersionManagerImpl versionManager) { + this.versionManager = versionManager; + } + + @Override + public StatusAndMessages finalize(String upgradeClientID, OzoneManager om) + throws IOException { + if (!versionManager.needsFinalization()) { + return FINALIZED_MSG; + } + clientID = upgradeClientID; + +// This requires some more investigation on how to do it properly while +// requests are on the fly, and post finalize features one by one. +// Until that is done, monitoring is not really doing anything meaningful +// but this is a tradoff we can take for the first iteration either if needed, +// as the finalization of the first few features should not take that long. +// Follow up JIRA is in HDDS-4286 +// String threadName = "OzoneManager-Upgrade-Finalizer"; +// ExecutorService executor = +// Executors.newSingleThreadExecutor(r -> new Thread(threadName)); +// executor.submit(new Worker(om)); + new Worker(om).call(); + return STARTING_MSG; Review comment: yes, I did not wanted to change the overall flow of messages and statusas that I came up with, but technically at this point we already done in the current implementation. ---------------------------------------------------------------- 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: us...@infra.apache.org --------------------------------------------------------------------- To unsubscribe, e-mail: ozone-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: ozone-issues-h...@hadoop.apache.org
