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Posted to issues@ozone.apache.org by GitBox <gi...@apache.org> on 2020/10/05 08:13:54 UTC
[GitHub] [hadoop-ozone] linyiqun commented on a change in pull request #1473: HDDS-4266: CreateFile : store parent dir entries into DirTable and file entry into separate FileTable
linyiqun commented on a change in pull request #1473:
URL: https://github.com/apache/hadoop-ozone/pull/1473#discussion_r499385995
##########
File path: hadoop-ozone/interface-storage/src/main/java/org/apache/hadoop/ozone/om/OMMetadataManager.java
##########
@@ -399,4 +399,15 @@ String getMultipartKey(String volume, String bucket, String key, String
* @return DB directory key as String.
*/
String getOzonePathKey(long parentObjectId, String pathComponentName);
Review comment:
Not the change of current PR but was introduced in last PR of HDDS-2949.
```java
/**
* Given a volume, bucket and a key, return the corresponding DB prefixKey
* key.
*
* @param parentObjectId - parent object Id
* @param pathComponentName - path component name
* @return DB directory key as String.
*/
String getOzonePathKey(long parentObjectId, String pathComponentName);
```
Can we update above comment? It's not correct.
##########
File path: hadoop-ozone/common/src/main/java/org/apache/hadoop/ozone/om/helpers/OmKeyInfo.java
##########
@@ -413,7 +461,8 @@ public KeyInfo getProtobuf(boolean ignorePipeline) {
.addAllMetadata(KeyValueUtil.toProtobuf(metadata))
.addAllAcls(OzoneAclUtil.toProtobuf(acls))
.setObjectID(objectID)
- .setUpdateID(updateID);
+ .setUpdateID(updateID)
+ .setParentID(parentObjectID);
Review comment:
Why not add setFileName here?
##########
File path: hadoop-ozone/ozone-manager/src/main/java/org/apache/hadoop/ozone/om/response/file/OMFileCreateResponseV1.java
##########
@@ -0,0 +1,81 @@
+/**
+ * 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.response.file;
+
+import org.apache.hadoop.hdds.utils.db.BatchOperation;
+import org.apache.hadoop.ozone.om.OMMetadataManager;
+import org.apache.hadoop.ozone.om.helpers.OmBucketInfo;
+import org.apache.hadoop.ozone.om.helpers.OmDirectoryInfo;
+import org.apache.hadoop.ozone.om.helpers.OmKeyInfo;
+import org.apache.hadoop.ozone.om.helpers.OmVolumeArgs;
+import org.apache.hadoop.ozone.protocol.proto.OzoneManagerProtocolProtos.OMResponse;
+
+import javax.annotation.Nonnull;
+import java.io.IOException;
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * Response for create file request layout version1.
+ */
+public class OMFileCreateResponseV1 extends OMFileCreateResponse {
+
+ private List<OmDirectoryInfo> parentDirInfos;
+
+ public OMFileCreateResponseV1(@Nonnull OMResponse omResponse,
+ @Nonnull OmKeyInfo omKeyInfo,
+ @Nonnull List<OmDirectoryInfo> parentDirInfos,
+ long openKeySessionID,
+ @Nonnull OmVolumeArgs omVolumeArgs,
+ @Nonnull OmBucketInfo omBucketInfo) {
+ super(omResponse, omKeyInfo, new ArrayList<>(), openKeySessionID,
+ omVolumeArgs, omBucketInfo);
+ this.parentDirInfos = parentDirInfos;
+ }
+
+ @Override
+ protected void addToDBBatch(OMMetadataManager omMetadataMgr,
+ BatchOperation batchOp) throws IOException {
+
+ /**
+ * Create parent directory entries during Key Create - do not wait
+ * for Key Commit request.
+ * XXX handle stale directory entries.
+ */
+ if (parentDirInfos != null) {
+ for (OmDirectoryInfo parentKeyInfo : parentDirInfos) {
+ String parentKey = omMetadataMgr.getOzonePathKey(
+ parentKeyInfo.getParentObjectID(), parentKeyInfo.getName());
Review comment:
We could use OmDirectoryInfo#getPath to simplified for this, there is already one method doing this.
##########
File path: hadoop-ozone/ozone-manager/src/main/java/org/apache/hadoop/ozone/om/OmMetadataManagerImpl.java
##########
@@ -129,6 +132,8 @@
* |----------------------------------------------------------------------|
* | directoryTable | parentId/directoryName -> DirectoryInfo |
* |----------------------------------------------------------------------|
+ * | fileTable | parentId/fileName -> FileInfo |
+ * |----------------------------------------------------------------------|
Review comment:
Can we add openFileTable as well here?
##########
File path: hadoop-ozone/ozone-manager/src/main/java/org/apache/hadoop/ozone/om/request/file/OMFileCreateRequestV1.java
##########
@@ -0,0 +1,283 @@
+/**
+ * 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.file;
+
+import com.google.common.base.Optional;
+import org.apache.hadoop.hdds.utils.db.cache.CacheKey;
+import org.apache.hadoop.hdds.utils.db.cache.CacheValue;
+import org.apache.hadoop.ozone.audit.OMAction;
+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.*;
+import org.apache.hadoop.ozone.om.ratis.utils.OzoneManagerDoubleBufferHelper;
+import org.apache.hadoop.ozone.om.request.util.OmResponseUtil;
+import org.apache.hadoop.ozone.om.response.OMClientResponse;
+import org.apache.hadoop.ozone.om.response.file.OMFileCreateResponse;
+import org.apache.hadoop.ozone.om.response.file.OMFileCreateResponseV1;
+import org.apache.hadoop.ozone.protocol.proto.OzoneManagerProtocolProtos.*;
+import org.apache.hadoop.ozone.security.acl.IAccessAuthorizer;
+import org.apache.hadoop.ozone.security.acl.OzoneObj;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import java.io.IOException;
+import java.nio.file.Paths;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Map;
+import java.util.stream.Collectors;
+
+import static org.apache.hadoop.ozone.om.lock.OzoneManagerLock.Resource.BUCKET_LOCK;
+import static org.apache.hadoop.ozone.om.request.file.OMFileRequest.OMDirectoryResult.*;
+
+/**
+ * Handles create file request layout version1.
+ */
+public class OMFileCreateRequestV1 extends OMFileCreateRequest {
+
+ private static final Logger LOG =
+ LoggerFactory.getLogger(OMFileCreateRequestV1.class);
+ public OMFileCreateRequestV1(OMRequest omRequest) {
+ super(omRequest);
+ }
+
+ @Override
+ @SuppressWarnings("methodlength")
+ public OMClientResponse validateAndUpdateCache(OzoneManager ozoneManager,
+ long trxnLogIndex, OzoneManagerDoubleBufferHelper omDoubleBufferHelper) {
+
+ CreateFileRequest createFileRequest = getOmRequest().getCreateFileRequest();
+ KeyArgs keyArgs = createFileRequest.getKeyArgs();
+ Map<String, String> auditMap = buildKeyArgsAuditMap(keyArgs);
+
+ String volumeName = keyArgs.getVolumeName();
+ String bucketName = keyArgs.getBucketName();
+ String keyName = keyArgs.getKeyName();
+
+ // if isRecursive is true, file would be created even if parent
+ // directories does not exist.
+ boolean isRecursive = createFileRequest.getIsRecursive();
+ if (LOG.isDebugEnabled()) {
+ LOG.debug("File create for : " + volumeName + "/" + bucketName + "/"
+ + keyName + ":" + isRecursive);
+ }
+
+ // if isOverWrite is true, file would be over written.
+ boolean isOverWrite = createFileRequest.getIsOverwrite();
+
+ OMMetrics omMetrics = ozoneManager.getMetrics();
+ omMetrics.incNumCreateFile();
+
+ OMMetadataManager omMetadataManager = ozoneManager.getMetadataManager();
+
+ boolean acquiredLock = false;
+
+ OmVolumeArgs omVolumeArgs = null;
+ OmBucketInfo omBucketInfo = null;
+ final List<OmKeyLocationInfo> locations = new ArrayList<>();
+ List<OmDirectoryInfo> missingParentInfos;
+
+ OMClientResponse omClientResponse = null;
+ OMResponse.Builder omResponse = OmResponseUtil.getOMResponseBuilder(
+ getOmRequest());
+ IOException exception = null;
+ Result result = null;
+ try {
+ keyArgs = resolveBucketLink(ozoneManager, keyArgs, auditMap);
+ volumeName = keyArgs.getVolumeName();
+ bucketName = keyArgs.getBucketName();
+
+ if (keyName.length() == 0) {
+ // Check if this is the root of the filesystem.
+ throw new OMException("Can not write to directory: " + keyName,
+ OMException.ResultCodes.NOT_A_FILE);
+ }
+
+ // check Acl
+ checkKeyAcls(ozoneManager, volumeName, bucketName, keyName,
+ IAccessAuthorizer.ACLType.CREATE, OzoneObj.ResourceType.KEY);
+
+ // acquire lock
+ acquiredLock = omMetadataManager.getLock().acquireWriteLock(BUCKET_LOCK,
+ volumeName, bucketName);
+
+ validateBucketAndVolume(omMetadataManager, volumeName, bucketName);
+
+ OmKeyInfo dbFileInfo = null;
+
+ OMFileRequest.OMPathInfoV1 pathInfoV1 =
+ OMFileRequest.verifyDirectoryKeysInPath(omMetadataManager,
+ volumeName, bucketName, keyName, Paths.get(keyName));
+
+ if (pathInfoV1.getDirectoryResult()
+ == OMFileRequest.OMDirectoryResult.FILE_EXISTS) {
+ String dbFileKey = omMetadataManager.getOzonePathKey(
+ pathInfoV1.getLastKnownParentId(),
+ pathInfoV1.getLeafNodeName());
+ dbFileInfo = omMetadataManager.getKeyTable().get(dbFileKey);
+ if (dbFileInfo != null) {
+ ozoneManager.getKeyManager().refresh(dbFileInfo);
+ }
+ }
+
+ // check if the file or directory already existed in OM
+ checkPathAlreadyExists(keyName, isOverWrite, pathInfoV1);
+
+ if (!isRecursive) {
+ checkAllParentsExist(ozoneManager, keyArgs, pathInfoV1);
+ }
+
+ // add all missing parents to dir table
+ missingParentInfos = OMDirectoryCreateRequestV1.getAllParentDirInfo(
+ ozoneManager, keyArgs, pathInfoV1, trxnLogIndex);
+
+ // do open key
+ OmBucketInfo bucketInfo = omMetadataManager.getBucketTable().get(
+ omMetadataManager.getBucketKey(volumeName, bucketName));
+
+ OmKeyInfo omFileInfo = prepareFileInfo(omMetadataManager, keyArgs,
+ dbFileInfo, keyArgs.getDataSize(), locations,
+ getFileEncryptionInfo(keyArgs), ozoneManager.getPrefixManager(),
+ bucketInfo, pathInfoV1, trxnLogIndex,
+ ozoneManager.isRatisEnabled());
+
+ long openVersion = omFileInfo.getLatestVersionLocations().getVersion();
+ long clientID = createFileRequest.getClientID();
+ String dbOpenFileName = omMetadataManager.getOpenFileName(
+ pathInfoV1.getLastKnownParentId(), pathInfoV1.getLeafNodeName(),
+ clientID);
+
+ // Append new blocks
+ List<OmKeyLocationInfo> newLocationList = keyArgs.getKeyLocationsList()
+ .stream().map(OmKeyLocationInfo::getFromProtobuf)
+ .collect(Collectors.toList());
+ omFileInfo.appendNewBlocks(newLocationList, false);
+
+ omVolumeArgs = getVolumeInfo(omMetadataManager, volumeName);
+ omBucketInfo = getBucketInfo(omMetadataManager, volumeName, bucketName);
+ // check volume quota
+ long preAllocatedSpace = newLocationList.size()
+ * ozoneManager.getScmBlockSize()
+ * omFileInfo.getFactor().getNumber();
+ checkVolumeQuotaInBytes(omVolumeArgs, preAllocatedSpace);
+
+ // Add to cache entry can be done outside of lock for this openKey.
+ // Even if bucket gets deleted, when commitKey we shall identify if
+ // bucket gets deleted.
+ omMetadataManager.getOpenKeyTable().addCacheEntry(
+ new CacheKey<>(dbOpenFileName),
+ new CacheValue<>(Optional.of(omFileInfo), trxnLogIndex));
+
+ // Add cache entries for the prefix directories.
+ // Skip adding for the file key itself, until Key Commit.
+ OMFileRequest.addDirectoryTableCacheEntries(omMetadataManager,
+ Optional.absent(), Optional.of(missingParentInfos),
Review comment:
I don't see we add OmDirectoryInfo in dir table cache during key commit. So could we put dir info into cache here?
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