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https://issues.apache.org/jira/browse/HDDS-1620?focusedWorklogId=258183&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-258183
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ASF GitHub Bot logged work on HDDS-1620:
----------------------------------------
Author: ASF GitHub Bot
Created on: 11/Jun/19 22:24
Start Date: 11/Jun/19 22:24
Worklog Time Spent: 10m
Work Description: bharatviswa504 commented on pull request #884:
HDDS-1620. Implement Volume Write Requests to use Cache and DoubleBuffer.
URL: https://github.com/apache/hadoop/pull/884#discussion_r292681344
##########
File path:
hadoop-ozone/ozone-manager/src/main/java/org/apache/hadoop/ozone/om/request/volume/OMVolumeSetOwnerRequest.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
+ * <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.om.request.volume;
+
+import java.io.IOException;
+import java.util.Map;
+
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import com.google.common.base.Optional;
+import com.google.common.base.Preconditions;
+
+import org.apache.hadoop.ozone.audit.AuditLogger;
+import org.apache.hadoop.ozone.audit.OMAction;
+import org.apache.hadoop.ozone.OzoneConsts;
+import org.apache.hadoop.ozone.om.OMMetadataManager;
+import org.apache.hadoop.ozone.om.OMMetrics;
+import org.apache.hadoop.ozone.om.OzoneManager;
+import org.apache.hadoop.ozone.om.exceptions.OMException;
+import org.apache.hadoop.ozone.om.helpers.OmVolumeArgs;
+import org.apache.hadoop.ozone.om.request.OMClientRequest;
+import org.apache.hadoop.ozone.om.response.OMClientResponse;
+import org.apache.hadoop.ozone.om.response.volume.OMVolumeCreateResponse;
+import org.apache.hadoop.ozone.om.response.volume.OMVolumeSetOwnerResponse;
+import org.apache.hadoop.ozone.protocol.proto.OzoneManagerProtocolProtos;
+import org.apache.hadoop.ozone.protocol.proto.OzoneManagerProtocolProtos
+ .OMRequest;
+import org.apache.hadoop.ozone.protocol.proto.OzoneManagerProtocolProtos
+ .OMResponse;
+import org.apache.hadoop.ozone.protocol.proto.OzoneManagerProtocolProtos
+ .SetVolumePropertyRequest;
+import org.apache.hadoop.ozone.protocol.proto.OzoneManagerProtocolProtos
+ .SetVolumePropertyResponse;
+import org.apache.hadoop.ozone.security.acl.IAccessAuthorizer;
+import org.apache.hadoop.ozone.security.acl.OzoneObj;
+import org.apache.hadoop.utils.db.cache.CacheKey;
+import org.apache.hadoop.utils.db.cache.CacheValue;
+
+/**
+ * Handle set owner request for volume.
+ */
+public class OMVolumeSetOwnerRequest extends OMClientRequest {
+ private static final Logger LOG =
+ LoggerFactory.getLogger(OMVolumeSetOwnerRequest.class);
+
+ public OMVolumeSetOwnerRequest(OMRequest omRequest) {
+ super(omRequest);
+ }
+
+ @Override
+ public OMClientResponse validateAndUpdateCache(OzoneManager ozoneManager,
+ long transactionLogIndex) {
+
+ SetVolumePropertyRequest setVolumePropertyRequest =
+ getOmRequest().getSetVolumePropertyRequest();
+
+ Preconditions.checkNotNull(setVolumePropertyRequest);
+
+ OMResponse.Builder omResponse = OMResponse.newBuilder().setCmdType(
+ OzoneManagerProtocolProtos.Type.SetVolumeProperty).setStatus(
+ OzoneManagerProtocolProtos.Status.OK).setSuccess(true);
+
+ // In production this will never happen, this request will be called only
+ // when we have ownerName in setVolumePropertyRequest.
+ if (!setVolumePropertyRequest.hasOwnerName()) {
+ omResponse.setStatus(OzoneManagerProtocolProtos.Status.INVALID_REQUEST)
+ .setSuccess(false);
+ return new OMVolumeSetOwnerResponse(null, null, null, null,
+ omResponse.build());
+ }
+
+ OMMetrics omMetrics = ozoneManager.getMetrics();
+ omMetrics.incNumVolumeUpdates();
+ String volume = setVolumePropertyRequest.getVolumeName();
+ String newOwner = setVolumePropertyRequest.getOwnerName();
+
+ AuditLogger auditLogger = ozoneManager.getAuditLogger();
+ OzoneManagerProtocolProtos.UserInfo userInfo =
getOmRequest().getUserInfo();
+
+ Map<String, String> auditMap = buildVolumeAuditMap(volume);
+ auditMap.put(OzoneConsts.OWNER, newOwner);
+ try {
+ // check Acl
+ if (ozoneManager.getAclsEnabled()) {
+ checkAcls(ozoneManager, OzoneObj.ResourceType.VOLUME,
+ OzoneObj.StoreType.OZONE, IAccessAuthorizer.ACLType.WRITE_ACL,
+ volume, null, null);
+ }
+ } catch (IOException ex) {
+ LOG.error("Changing volume ownership failed for user:{} volume:{}",
+ newOwner, volume);
+ omMetrics.incNumVolumeUpdateFails();
+ auditLog(auditLogger, buildAuditMessage(OMAction.SET_OWNER, auditMap,
+ ex, userInfo));
+ return new OMVolumeCreateResponse(null, null,
+ createErrorOMResponse(omResponse, ex));
+ }
+
+
+ long maxUserVolumeCount = ozoneManager.getMaxUserVolumeCount();
+ OMMetadataManager omMetadataManager = ozoneManager.getMetadataManager();
+ String dbVolumeKey = omMetadataManager.getVolumeKey(volume);
+ String oldOwner = null;
+ OzoneManagerProtocolProtos.VolumeList oldOwnerVolumeList = null;
+ OzoneManagerProtocolProtos.VolumeList newOwnerVolumeList = null;
+ OmVolumeArgs omVolumeArgs = null;
+ IOException exception = null;
+
+ omMetadataManager.getLock().acquireUserLock(newOwner);
+ omMetadataManager.getLock().acquireVolumeLock(volume);
+ try {
+ omVolumeArgs = omMetadataManager.getVolumeTable().get(dbVolumeKey);
+
+ if (omVolumeArgs == null) {
+ LOG.debug("Changing volume ownership failed for user:{} volume:{}",
+ newOwner, volume);
+ throw new OMException("Volume " + volume + " is not found",
+ OMException.ResultCodes.VOLUME_NOT_FOUND);
+ }
+
+ oldOwner = omVolumeArgs.getOwnerName();
+ oldOwnerVolumeList = VolumeRequestHelper.delVolumeFromOwnerList(
+ omMetadataManager, volume, oldOwner);
+
+ newOwnerVolumeList = VolumeRequestHelper.addVolumeToOwnerList(
+ omMetadataManager, volume, newOwner, maxUserVolumeCount);
+
+ // Set owner with new owner name.
+ omVolumeArgs.setOwnerName(newOwner);
+
+ // Update cache.
+ omMetadataManager.getUserTable().addCacheEntry(
+ new CacheKey<>(omMetadataManager.getUserKey(newOwner)),
+ new CacheValue<>(Optional.of(newOwnerVolumeList),
+ transactionLogIndex));
+ omMetadataManager.getUserTable().addCacheEntry(
Review comment:
We don't need it. As we have acquired VolumeLock for this volume. No other
volume requests can be completed, while this is processing.
Now got a question, why do we have userlock. (Not sure if i am missing
something here)
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Issue Time Tracking
-------------------
Worklog Id: (was: 258183)
Time Spent: 9h 40m (was: 9.5h)
> Implement Volume Write Requests to use Cache and DoubleBuffer
> -------------------------------------------------------------
>
> Key: HDDS-1620
> URL: https://issues.apache.org/jira/browse/HDDS-1620
> Project: Hadoop Distributed Data Store
> Issue Type: Sub-task
> Components: Ozone Manager
> Reporter: Bharat Viswanadham
> Assignee: Bharat Viswanadham
> Priority: Major
> Labels: pull-request-available
> Time Spent: 9h 40m
> Remaining Estimate: 0h
>
> Implement Volume write requests to use OM Cache, double buffer.
> In this Jira will add the changes to implement volume operations, and
> HA/Non-HA will have a different code path, but once all requests are
> implemented will have a single code path.
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