| /** |
| * 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.container.common.statemachine.commandhandler; |
| |
| import org.apache.hadoop.hdds.protocol.DatanodeDetails; |
| import org.apache.hadoop.hdds.protocol.datanode.proto.ContainerProtos; |
| import org.apache.hadoop.hdds.protocol.datanode.proto |
| .ContainerProtos.ContainerCommandRequestProto; |
| import org.apache.hadoop.hdds.protocol.proto |
| .StorageContainerDatanodeProtocolProtos.SCMCommandProto; |
| import org.apache.hadoop.hdds.protocol.proto |
| .StorageContainerDatanodeProtocolProtos.CloseContainerCommandProto; |
| import org.apache.hadoop.hdds.tracing.TracingUtil; |
| import org.apache.hadoop.ozone.container.common.interfaces.Container; |
| import org.apache.hadoop.ozone.container.common.statemachine |
| .SCMConnectionManager; |
| import org.apache.hadoop.ozone.container.common.statemachine.StateContext; |
| import org.apache.hadoop.ozone.container.ozoneimpl.ContainerController; |
| import org.apache.hadoop.ozone.container.ozoneimpl.OzoneContainer; |
| import org.apache.hadoop.ozone.protocol.commands.CloseContainerCommand; |
| import org.apache.hadoop.ozone.protocol.commands.SCMCommand; |
| import org.apache.hadoop.util.Time; |
| import org.apache.ratis.protocol.NotLeaderException; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| import java.io.IOException; |
| |
| /** |
| * Handler for close container command received from SCM. |
| */ |
| public class CloseContainerCommandHandler implements CommandHandler { |
| |
| private static final Logger LOG = |
| LoggerFactory.getLogger(CloseContainerCommandHandler.class); |
| |
| private int invocationCount; |
| private long totalTime; |
| |
| /** |
| * Constructs a ContainerReport handler. |
| */ |
| public CloseContainerCommandHandler() { |
| } |
| |
| /** |
| * Handles a given SCM command. |
| * |
| * @param command - SCM Command |
| * @param ozoneContainer - Ozone Container. |
| * @param context - Current Context. |
| * @param connectionManager - The SCMs that we are talking to. |
| */ |
| @Override |
| public void handle(SCMCommand command, OzoneContainer ozoneContainer, |
| StateContext context, SCMConnectionManager connectionManager) { |
| LOG.debug("Processing Close Container command."); |
| invocationCount++; |
| final long startTime = Time.monotonicNow(); |
| final DatanodeDetails datanodeDetails = context.getParent() |
| .getDatanodeDetails(); |
| final CloseContainerCommandProto closeCommand = |
| ((CloseContainerCommand)command).getProto(); |
| final ContainerController controller = ozoneContainer.getController(); |
| final long containerId = closeCommand.getContainerID(); |
| try { |
| final Container container = controller.getContainer(containerId); |
| |
| if (container == null) { |
| LOG.error("Container #{} does not exist in datanode. " |
| + "Container close failed.", containerId); |
| return; |
| } |
| |
| // move the container to CLOSING if in OPEN state |
| controller.markContainerForClose(containerId); |
| |
| switch (container.getContainerState()) { |
| case OPEN: |
| case CLOSING: |
| // If the container is part of open pipeline, close it via write channel |
| if (ozoneContainer.getWriteChannel() |
| .isExist(closeCommand.getPipelineID())) { |
| ContainerCommandRequestProto request = |
| getContainerCommandRequestProto(datanodeDetails, |
| closeCommand.getContainerID()); |
| ozoneContainer.getWriteChannel() |
| .submitRequest(request, closeCommand.getPipelineID()); |
| } else { |
| // Container should not exist in CLOSING state without a pipeline |
| controller.markContainerUnhealthy(containerId); |
| } |
| break; |
| case QUASI_CLOSED: |
| if (closeCommand.getForce()) { |
| controller.closeContainer(containerId); |
| break; |
| } |
| case CLOSED: |
| break; |
| case UNHEALTHY: |
| case INVALID: |
| if (LOG.isDebugEnabled()) { |
| LOG.debug("Cannot close the container #{}, the container is" |
| + " in {} state.", containerId, container.getContainerState()); |
| } |
| default: |
| break; |
| } |
| } catch (NotLeaderException e) { |
| LOG.debug("Follower cannot close container #{}.", containerId); |
| } catch (IOException e) { |
| LOG.error("Can't close container #{}", containerId, e); |
| } finally { |
| long endTime = Time.monotonicNow(); |
| totalTime += endTime - startTime; |
| } |
| } |
| |
| private ContainerCommandRequestProto getContainerCommandRequestProto( |
| final DatanodeDetails datanodeDetails, final long containerId) { |
| final ContainerCommandRequestProto.Builder command = |
| ContainerCommandRequestProto.newBuilder(); |
| command.setCmdType(ContainerProtos.Type.CloseContainer); |
| command.setTraceID(TracingUtil.exportCurrentSpan()); |
| command.setContainerID(containerId); |
| command.setCloseContainer( |
| ContainerProtos.CloseContainerRequestProto.getDefaultInstance()); |
| command.setDatanodeUuid(datanodeDetails.getUuidString()); |
| return command.build(); |
| } |
| |
| /** |
| * Returns the command type that this command handler handles. |
| * |
| * @return Type |
| */ |
| @Override |
| public SCMCommandProto.Type getCommandType() { |
| return SCMCommandProto.Type.closeContainerCommand; |
| } |
| |
| /** |
| * Returns number of times this handler has been invoked. |
| * |
| * @return int |
| */ |
| @Override |
| public int getInvocationCount() { |
| return invocationCount; |
| } |
| |
| /** |
| * Returns the average time this function takes to run. |
| * |
| * @return long |
| */ |
| @Override |
| public long getAverageRunTime() { |
| if (invocationCount > 0) { |
| return totalTime / invocationCount; |
| } |
| return 0; |
| } |
| } |