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SCMBlockProtocolServer.java
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SCMBlockProtocolServer.java
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/**
* 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.hdds.scm.server;
import com.google.common.collect.Maps;
import com.google.protobuf.BlockingService;
import org.apache.hadoop.fs.CommonConfigurationKeys;
import org.apache.hadoop.hdds.conf.OzoneConfiguration;
import org.apache.hadoop.hdds.protocol.proto.HddsProtos;
import org.apache.hadoop.hdds.protocol.proto.ScmBlockLocationProtocolProtos;
import org.apache.hadoop.hdds.scm.HddsServerUtil;
import org.apache.hadoop.hdds.scm.ScmInfo;
import org.apache.hadoop.hdds.scm.container.common.helpers.AllocatedBlock;
import org.apache.hadoop.hdds.scm.container.common.helpers.DeleteBlockResult;
import org.apache.hadoop.hdds.scm.container.common.helpers.ExcludeList;
import org.apache.hadoop.hdds.scm.exceptions.SCMException;
import org.apache.hadoop.hdds.scm.protocol.ScmBlockLocationProtocol;
import org.apache.hadoop.hdds.scm.protocolPB.ScmBlockLocationProtocolPB;
import org.apache.hadoop.io.IOUtils;
import org.apache.hadoop.ipc.ProtobufRpcEngine;
import org.apache.hadoop.ipc.RPC;
import org.apache.hadoop.ipc.Server;
import org.apache.hadoop.ozone.audit.AuditAction;
import org.apache.hadoop.ozone.audit.AuditEventStatus;
import org.apache.hadoop.ozone.audit.AuditLogger;
import org.apache.hadoop.ozone.audit.AuditLoggerType;
import org.apache.hadoop.ozone.audit.AuditMessage;
import org.apache.hadoop.ozone.audit.Auditor;
import org.apache.hadoop.ozone.audit.SCMAction;
import org.apache.hadoop.ozone.common.BlockGroup;
import org.apache.hadoop.hdds.client.BlockID;
import org.apache.hadoop.ozone.common.DeleteBlockGroupResult;
import org.apache.hadoop.ozone.protocolPB
.ScmBlockLocationProtocolServerSideTranslatorPB;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.io.IOException;
import java.net.InetSocketAddress;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;
import static org.apache.hadoop.hdds.scm.ScmConfigKeys
.OZONE_SCM_BLOCK_CLIENT_ADDRESS_KEY;
import static org.apache.hadoop.hdds.scm.ScmConfigKeys
.OZONE_SCM_HANDLER_COUNT_DEFAULT;
import static org.apache.hadoop.hdds.scm.ScmConfigKeys
.OZONE_SCM_HANDLER_COUNT_KEY;
import static org.apache.hadoop.hdds.server.ServerUtils.updateRPCListenAddress;
import static org.apache.hadoop.hdds.scm.server.StorageContainerManager
.startRpcServer;
/**
* SCM block protocol is the protocol used by Namenode and OzoneManager to get
* blocks from the SCM.
*/
public class SCMBlockProtocolServer implements
ScmBlockLocationProtocol, Auditor {
private static final Logger LOG =
LoggerFactory.getLogger(SCMBlockProtocolServer.class);
private static final AuditLogger AUDIT =
new AuditLogger(AuditLoggerType.SCMLOGGER);
private final StorageContainerManager scm;
private final OzoneConfiguration conf;
private final RPC.Server blockRpcServer;
private final InetSocketAddress blockRpcAddress;
/**
* The RPC server that listens to requests from block service clients.
*/
public SCMBlockProtocolServer(OzoneConfiguration conf,
StorageContainerManager scm) throws IOException {
this.scm = scm;
this.conf = conf;
final int handlerCount =
conf.getInt(OZONE_SCM_HANDLER_COUNT_KEY,
OZONE_SCM_HANDLER_COUNT_DEFAULT);
RPC.setProtocolEngine(conf, ScmBlockLocationProtocolPB.class,
ProtobufRpcEngine.class);
// SCM Block Service RPC.
BlockingService blockProtoPbService =
ScmBlockLocationProtocolProtos.ScmBlockLocationProtocolService
.newReflectiveBlockingService(
new ScmBlockLocationProtocolServerSideTranslatorPB(this));
final InetSocketAddress scmBlockAddress = HddsServerUtil
.getScmBlockClientBindAddress(conf);
blockRpcServer =
startRpcServer(
conf,
scmBlockAddress,
ScmBlockLocationProtocolPB.class,
blockProtoPbService,
handlerCount);
blockRpcAddress =
updateRPCListenAddress(
conf, OZONE_SCM_BLOCK_CLIENT_ADDRESS_KEY, scmBlockAddress,
blockRpcServer);
if (conf.getBoolean(CommonConfigurationKeys.HADOOP_SECURITY_AUTHORIZATION,
false)) {
blockRpcServer.refreshServiceAcl(conf, SCMPolicyProvider.getInstance());
}
}
public RPC.Server getBlockRpcServer() {
return blockRpcServer;
}
public InetSocketAddress getBlockRpcAddress() {
return blockRpcAddress;
}
public void start() {
LOG.info(
StorageContainerManager.buildRpcServerStartMessage(
"RPC server for Block Protocol", getBlockRpcAddress()));
getBlockRpcServer().start();
}
public void stop() {
try {
LOG.info("Stopping the RPC server for Block Protocol");
getBlockRpcServer().stop();
} catch (Exception ex) {
LOG.error("Block Protocol RPC stop failed.", ex);
}
IOUtils.cleanupWithLogger(LOG, scm.getScmNodeManager());
}
public void join() throws InterruptedException {
LOG.trace("Join RPC server for Block Protocol");
getBlockRpcServer().join();
}
@Override
public List<AllocatedBlock> allocateBlock(long size, int num,
HddsProtos.ReplicationType type, HddsProtos.ReplicationFactor factor,
String owner, ExcludeList excludeList) throws IOException {
Map<String, String> auditMap = Maps.newHashMap();
auditMap.put("size", String.valueOf(size));
auditMap.put("type", type.name());
auditMap.put("factor", factor.name());
auditMap.put("owner", owner);
List<AllocatedBlock> blocks = new ArrayList<>(num);
boolean auditSuccess = true;
try {
for (int i = 0; i < num; i++) {
AllocatedBlock block = scm.getScmBlockManager()
.allocateBlock(size, type, factor, owner, excludeList);
if (block != null) {
blocks.add(block);
}
}
return blocks;
} catch (Exception ex) {
auditSuccess = false;
AUDIT.logWriteFailure(
buildAuditMessageForFailure(SCMAction.ALLOCATE_BLOCK, auditMap, ex)
);
throw ex;
} finally {
if(auditSuccess) {
AUDIT.logWriteSuccess(
buildAuditMessageForSuccess(SCMAction.ALLOCATE_BLOCK, auditMap)
);
}
}
}
/**
* Delete blocks for a set of object keys.
*
* @param keyBlocksInfoList list of block keys with object keys to delete.
* @return deletion results.
*/
@Override
public List<DeleteBlockGroupResult> deleteKeyBlocks(
List<BlockGroup> keyBlocksInfoList) throws IOException {
LOG.info("SCM is informed by OM to delete {} blocks", keyBlocksInfoList
.size());
List<DeleteBlockGroupResult> results = new ArrayList<>();
Map<String, String> auditMap = Maps.newHashMap();
for (BlockGroup keyBlocks : keyBlocksInfoList) {
ScmBlockLocationProtocolProtos.DeleteScmBlockResult.Result resultCode;
try {
// We delete blocks in an atomic operation to prevent getting
// into state like only a partial of blocks are deleted,
// which will leave key in an inconsistent state.
auditMap.put("keyBlockToDelete", keyBlocks.toString());
scm.getScmBlockManager().deleteBlocks(keyBlocks.getBlockIDList());
resultCode = ScmBlockLocationProtocolProtos.DeleteScmBlockResult
.Result.success;
AUDIT.logWriteSuccess(
buildAuditMessageForSuccess(SCMAction.DELETE_KEY_BLOCK, auditMap)
);
} catch (SCMException scmEx) {
LOG.warn("Fail to delete block: {}", keyBlocks.getGroupID(), scmEx);
AUDIT.logWriteFailure(
buildAuditMessageForFailure(SCMAction.DELETE_KEY_BLOCK, auditMap,
scmEx)
);
switch (scmEx.getResult()) {
case CHILL_MODE_EXCEPTION:
resultCode = ScmBlockLocationProtocolProtos.DeleteScmBlockResult
.Result.chillMode;
break;
case FAILED_TO_FIND_BLOCK:
resultCode = ScmBlockLocationProtocolProtos.DeleteScmBlockResult
.Result.errorNotFound;
break;
default:
resultCode = ScmBlockLocationProtocolProtos.DeleteScmBlockResult
.Result.unknownFailure;
}
} catch (IOException ex) {
LOG.warn("Fail to delete blocks for object key: {}", keyBlocks
.getGroupID(), ex);
AUDIT.logWriteFailure(
buildAuditMessageForFailure(SCMAction.DELETE_KEY_BLOCK, auditMap,
ex)
);
resultCode = ScmBlockLocationProtocolProtos.DeleteScmBlockResult
.Result.unknownFailure;
}
List<DeleteBlockResult> blockResultList = new ArrayList<>();
for (BlockID blockKey : keyBlocks.getBlockIDList()) {
blockResultList.add(new DeleteBlockResult(blockKey, resultCode));
}
results.add(new DeleteBlockGroupResult(keyBlocks.getGroupID(),
blockResultList));
}
return results;
}
@Override
public ScmInfo getScmInfo() throws IOException {
boolean auditSuccess = true;
try{
ScmInfo.Builder builder =
new ScmInfo.Builder()
.setClusterId(scm.getScmStorageConfig().getClusterID())
.setScmId(scm.getScmStorageConfig().getScmId());
return builder.build();
} catch (Exception ex) {
auditSuccess = false;
AUDIT.logReadFailure(
buildAuditMessageForFailure(SCMAction.GET_SCM_INFO, null, ex)
);
throw ex;
} finally {
if(auditSuccess) {
AUDIT.logReadSuccess(
buildAuditMessageForSuccess(SCMAction.GET_SCM_INFO, null)
);
}
}
}
@Override
public AuditMessage buildAuditMessageForSuccess(
AuditAction op, Map<String, String> auditMap) {
return new AuditMessage.Builder()
.setUser((Server.getRemoteUser() == null) ? null :
Server.getRemoteUser().getUserName())
.atIp((Server.getRemoteIp() == null) ? null :
Server.getRemoteIp().getHostAddress())
.forOperation(op.getAction())
.withParams(auditMap)
.withResult(AuditEventStatus.SUCCESS.toString())
.withException(null)
.build();
}
@Override
public AuditMessage buildAuditMessageForFailure(AuditAction op, Map<String,
String> auditMap, Throwable throwable) {
return new AuditMessage.Builder()
.setUser((Server.getRemoteUser() == null) ? null :
Server.getRemoteUser().getUserName())
.atIp((Server.getRemoteIp() == null) ? null :
Server.getRemoteIp().getHostAddress())
.forOperation(op.getAction())
.withParams(auditMap)
.withResult(AuditEventStatus.FAILURE.toString())
.withException(throwable)
.build();
}
@Override
public void close() throws IOException {
stop();
}
}