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AdminServiceRequestHandler.java
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AdminServiceRequestHandler.java
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/*
*
* Copyright 2008-2013 LinkedIn, Inc
*
* Licensed 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 voldemort.server.protocol.admin;
import java.io.DataInputStream;
import java.io.DataOutputStream;
import java.io.File;
import java.io.IOException;
import java.io.StringReader;
import java.nio.ByteBuffer;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import java.util.Properties;
import java.util.Set;
import java.util.concurrent.atomic.AtomicBoolean;
import java.util.concurrent.locks.Lock;
import java.util.concurrent.locks.ReentrantLock;
import org.apache.commons.io.IOUtils;
import org.apache.log4j.Logger;
import voldemort.VoldemortException;
import voldemort.client.protocol.VoldemortFilter;
import voldemort.client.protocol.admin.AdminClient;
import voldemort.client.protocol.admin.filter.DefaultVoldemortFilter;
import voldemort.client.protocol.pb.ProtoUtils;
import voldemort.client.protocol.pb.VAdminProto;
import voldemort.client.protocol.pb.VAdminProto.RebalanceTaskInfoMap;
import voldemort.client.protocol.pb.VAdminProto.VoldemortAdminRequest;
import voldemort.client.rebalance.RebalanceTaskInfo;
import voldemort.cluster.Cluster;
import voldemort.cluster.Zone;
import voldemort.common.nio.ByteBufferBackedInputStream;
import voldemort.common.nio.ByteBufferContainer;
import voldemort.common.service.SchedulerService;
import voldemort.routing.StoreRoutingPlan;
import voldemort.server.StoreRepository;
import voldemort.server.VoldemortConfig;
import voldemort.server.VoldemortServer;
import voldemort.server.protocol.RequestHandler;
import voldemort.server.protocol.StreamRequestHandler;
import voldemort.server.rebalance.Rebalancer;
import voldemort.server.scheduler.slop.SlopPurgeJob;
import voldemort.server.storage.StorageService;
import voldemort.server.storage.prunejob.VersionedPutPruneJob;
import voldemort.server.storage.repairjob.RepairJob;
import voldemort.store.ErrorCodeMapper;
import voldemort.store.NoSuchCapabilityException;
import voldemort.store.PersistenceFailureException;
import voldemort.store.StorageEngine;
import voldemort.store.StoreCapabilityType;
import voldemort.store.StoreDefinition;
import voldemort.store.StoreDefinitionBuilder;
import voldemort.store.StoreNotFoundException;
import voldemort.store.StoreOperationFailureException;
import voldemort.store.backup.NativeBackupable;
import voldemort.store.metadata.MetadataStore;
import voldemort.store.mysql.MysqlStorageEngine;
import voldemort.store.quota.QuotaType;
import voldemort.store.quota.QuotaUtils;
import voldemort.store.readonly.FileFetcher;
import voldemort.store.readonly.ReadOnlyStorageConfiguration;
import voldemort.store.readonly.ReadOnlyStorageEngine;
import voldemort.store.readonly.ReadOnlyUtils;
import voldemort.store.readonly.StoreVersionManager;
import voldemort.store.readonly.chunk.ChunkedFileSet;
import voldemort.store.readonly.swapper.FailedFetchLock;
import voldemort.store.slop.SlopStorageEngine;
import voldemort.store.stats.StreamingStats;
import voldemort.store.stats.StreamingStats.Operation;
import voldemort.utils.ByteArray;
import voldemort.utils.ByteUtils;
import voldemort.utils.ClosableIterator;
import voldemort.utils.ConfigurationException;
import voldemort.utils.EventThrottler;
import voldemort.utils.ExceptionUtils;
import voldemort.utils.NetworkClassLoader;
import voldemort.utils.Pair;
import voldemort.utils.Props;
import voldemort.utils.ReflectUtils;
import voldemort.utils.Utils;
import voldemort.versioning.ObsoleteVersionException;
import voldemort.versioning.VectorClock;
import voldemort.versioning.Versioned;
import voldemort.xml.ClusterMapper;
import voldemort.xml.StoreDefinitionsMapper;
import com.google.common.collect.Lists;
import com.google.common.collect.Sets;
import com.google.protobuf.Message;
/**
* Protocol buffers implementation of a {@link RequestHandler}
*
*/
public class AdminServiceRequestHandler implements RequestHandler {
private final static Logger logger = Logger.getLogger(AdminServiceRequestHandler.class);
private final static Object lock = new Object();
private final static Lock storeLock = new ReentrantLock();
private final ErrorCodeMapper errorCodeMapper;
private final MetadataStore metadataStore;
private final StorageService storageService;
private final StoreRepository storeRepository;
private final NetworkClassLoader networkClassLoader;
private final VoldemortConfig voldemortConfig;
private final AsyncOperationService asyncService;
private final SchedulerService scheduler;
private final Rebalancer rebalancer;
private final VoldemortServer server;
private FileFetcher fileFetcher;
public AdminServiceRequestHandler(ErrorCodeMapper errorCodeMapper,
StorageService storageService,
StoreRepository storeRepository,
MetadataStore metadataStore,
VoldemortConfig voldemortConfig,
AsyncOperationService asyncService,
SchedulerService scheduler,
Rebalancer rebalancer,
VoldemortServer server) {
this.errorCodeMapper = errorCodeMapper;
this.storageService = storageService;
this.metadataStore = metadataStore;
this.storeRepository = storeRepository;
this.voldemortConfig = voldemortConfig;
this.server = server;
this.networkClassLoader = new NetworkClassLoader(Thread.currentThread()
.getContextClassLoader());
this.asyncService = asyncService;
this.scheduler = scheduler;
this.rebalancer = rebalancer;
setFetcherClass(voldemortConfig);
}
private void setFetcherClass(VoldemortConfig voldemortConfig) {
if(voldemortConfig != null) {
String className = voldemortConfig.getFileFetcherClass();
if(className == null || className.trim().length() == 0) {
this.fileFetcher = null;
} else {
try {
logger.info("Loading fetcher " + className);
Class<?> cls = Class.forName(className.trim());
this.fileFetcher = (FileFetcher) ReflectUtils.callConstructor(cls,
new Class<?>[] { VoldemortConfig.class },
new Object[] { voldemortConfig });
} catch(Exception e) {
throw new VoldemortException("Error loading file fetcher class " + className, e);
}
}
} else {
this.fileFetcher = null;
}
}
@Override
public StreamRequestHandler handleRequest(final DataInputStream inputStream,
final DataOutputStream outputStream)
throws IOException {
return handleRequest(inputStream, outputStream, null);
}
@Override
public StreamRequestHandler handleRequest(final DataInputStream inputStream,
final DataOutputStream outputStream,
final ByteBufferContainer container)
throws IOException {
// Another protocol buffers bug here, temp. work around
VoldemortAdminRequest.Builder request = VoldemortAdminRequest.newBuilder();
int size = inputStream.readInt();
if(logger.isTraceEnabled())
logger.trace("In handleRequest, request specified size of " + size + " bytes");
if(size < 0)
throw new IOException("In handleRequest, request specified size of " + size + " bytes");
byte[] input = new byte[size];
ByteUtils.read(inputStream, input);
request.mergeFrom(input);
switch(request.getType()) {
case GET_METADATA:
ProtoUtils.writeMessage(outputStream, handleGetMetadata(request.getGetMetadata()));
break;
case UPDATE_METADATA:
ProtoUtils.writeMessage(outputStream,
handleSetMetadata(request.getUpdateMetadata()));
break;
case UPDATE_STORE_DEFINITIONS:
ProtoUtils.writeMessage(outputStream,
handleUpdateStoreDefinitions(request.getUpdateMetadata()));
break;
case UPDATE_METADATA_PAIR:
ProtoUtils.writeMessage(outputStream,
handleUpdateMetadataPair(request.getUpdateMetadataPair()));
break;
case DELETE_PARTITION_ENTRIES:
ProtoUtils.writeMessage(outputStream,
handleDeletePartitionEntries(request.getDeletePartitionEntries()));
break;
case FETCH_PARTITION_ENTRIES:
return handleFetchPartitionEntries(request.getFetchPartitionEntries());
case UPDATE_PARTITION_ENTRIES:
return handleUpdatePartitionEntries(request.getUpdatePartitionEntries());
case INITIATE_FETCH_AND_UPDATE:
ProtoUtils.writeMessage(outputStream,
handleFetchAndUpdate(request.getInitiateFetchAndUpdate()));
break;
case ASYNC_OPERATION_STATUS:
ProtoUtils.writeMessage(outputStream,
handleAsyncStatus(request.getAsyncOperationStatus()));
break;
case INITIATE_REBALANCE_NODE:
ProtoUtils.writeMessage(outputStream,
handleRebalanceNode(request.getInitiateRebalanceNode()));
break;
case ASYNC_OPERATION_LIST:
ProtoUtils.writeMessage(outputStream,
handleAsyncOperationList(request.getAsyncOperationList()));
break;
case ASYNC_OPERATION_STOP:
ProtoUtils.writeMessage(outputStream,
handleAsyncOperationStop(request.getAsyncOperationStop()));
break;
case LIST_SCHEDULED_JOBS:
ProtoUtils.writeMessage(outputStream,
handleListScheduledJobs(request.getListScheduledJobs()));
break;
case GET_SCHEDULED_JOB_STATUS:
ProtoUtils.writeMessage(outputStream,
handleGetScheduledJobStatus(request.getGetScheduledJobStatus()));
break;
case STOP_SCHEDULED_JOB:
ProtoUtils.writeMessage(outputStream,
handleStopScheduledJob(request.getStopScheduledJob()));
break;
case ENABLE_SCHEDULED_JOB:
ProtoUtils.writeMessage(outputStream,
handleEnableScheduledJob(request.getEnableScheduledJob()));
break;
case TRUNCATE_ENTRIES:
ProtoUtils.writeMessage(outputStream,
handleTruncateEntries(request.getTruncateEntries()));
break;
case ADD_STORE:
ProtoUtils.writeMessage(outputStream, handleAddStore(request.getAddStore()));
break;
case DELETE_STORE:
ProtoUtils.writeMessage(outputStream, handleDeleteStore(request.getDeleteStore()));
break;
case FETCH_STORE:
ProtoUtils.writeMessage(outputStream, handleFetchROStore(request.getFetchStore()));
break;
case SWAP_STORE:
ProtoUtils.writeMessage(outputStream, handleSwapROStore(request.getSwapStore()));
break;
case ROLLBACK_STORE:
ProtoUtils.writeMessage(outputStream,
handleRollbackStore(request.getRollbackStore()));
break;
case GET_RO_MAX_VERSION_DIR:
ProtoUtils.writeMessage(outputStream,
handleGetROMaxVersionDir(request.getGetRoMaxVersionDir()));
break;
case GET_RO_CURRENT_VERSION_DIR:
ProtoUtils.writeMessage(outputStream,
handleGetROCurrentVersionDir(request.getGetRoCurrentVersionDir()));
break;
case GET_RO_STORAGE_FORMAT:
ProtoUtils.writeMessage(outputStream,
handleGetROStorageFormat(request.getGetRoStorageFormat()));
break;
case GET_RO_STORAGE_FILE_LIST:
ProtoUtils.writeMessage(outputStream,
handleGetROStorageFileList(request.getGetRoStorageFileList()));
break;
case GET_RO_COMPRESSION_CODEC_LIST:
ProtoUtils.writeMessage(outputStream,
handleGetROCompressionCodecList(request.getGetRoCompressionCodecList()));
break;
case FETCH_PARTITION_FILES:
return handleFetchROPartitionFiles(request.getFetchPartitionFiles());
case UPDATE_SLOP_ENTRIES:
return handleUpdateSlopEntries(request.getUpdateSlopEntries());
case FAILED_FETCH_STORE:
ProtoUtils.writeMessage(outputStream,
handleFailedROFetch(request.getFailedFetchStore()));
break;
case REBALANCE_STATE_CHANGE:
ProtoUtils.writeMessage(outputStream,
handleRebalanceStateChange(request.getRebalanceStateChange()));
break;
case DELETE_STORE_REBALANCE_STATE:
ProtoUtils.writeMessage(outputStream,
handleDeleteStoreRebalanceState(request.getDeleteStoreRebalanceState()));
break;
case SET_OFFLINE_STATE:
ProtoUtils.writeMessage(outputStream,
handleSetOfflineState(request.getSetOfflineState()));
break;
case REPAIR_JOB:
ProtoUtils.writeMessage(outputStream, handleRepairJob(request.getRepairJob()));
break;
case PRUNE_JOB:
ProtoUtils.writeMessage(outputStream, handlePruneJob(request.getPruneJob()));
break;
case SLOP_PURGE_JOB:
ProtoUtils.writeMessage(outputStream, handleSlopPurgeJob(request.getSlopPurgeJob()));
break;
case NATIVE_BACKUP:
ProtoUtils.writeMessage(outputStream, handleNativeBackup(request.getNativeBackup()));
break;
case RESERVE_MEMORY:
ProtoUtils.writeMessage(outputStream,
handleReserveMemory(request.getReserveMemory()));
break;
case GET_HA_SETTINGS:
ProtoUtils.writeMessage(outputStream,
handleGetHighAvailabilitySettings(request.getGetHaSettings()));
break;
case DISABLE_STORE_VERSION:
ProtoUtils.writeMessage(outputStream,
handleDisableStoreVersion(request.getDisableStoreVersion()));
break;
case HANDLE_FETCH_FAILURE:
ProtoUtils.writeMessage(outputStream,
handleFetchFailure(request.getHandleFetchFailure()));
break;
case GET_CONFIG:
ProtoUtils.writeMessage(outputStream,
handleGetConfigRequest(request.getGetConfig()));
break;
default:
throw new VoldemortException("Unknown operation: " + request.getType());
}
return null;
}
private VAdminProto.DeleteStoreRebalanceStateResponse handleDeleteStoreRebalanceState(VAdminProto.DeleteStoreRebalanceStateRequest request) {
VAdminProto.DeleteStoreRebalanceStateResponse.Builder response = VAdminProto.DeleteStoreRebalanceStateResponse.newBuilder();
synchronized(rebalancer) {
try {
int nodeId = request.getNodeId();
String storeName = request.getStoreName();
logger.info("Removing rebalancing state for donor node " + nodeId + " and store "
+ storeName + " from stealer node " + metadataStore.getNodeId());
RebalanceTaskInfo info = metadataStore.getRebalancerState().find(nodeId);
if(info == null) {
throw new VoldemortException("Could not find state for donor node " + nodeId);
}
List<Integer> partitionIds = info.getPartitionIds(storeName);
if(partitionIds.size() == 0) {
throw new VoldemortException("Could not find state for donor node " + nodeId
+ " and store " + storeName);
}
info.removeStore(storeName);
logger.info("Removed rebalancing state for donor node " + nodeId + " and store "
+ storeName + " from stealer node " + metadataStore.getNodeId());
if(info.getPartitionStores().isEmpty()) {
metadataStore.deleteRebalancingState(info);
logger.info("Removed entire rebalancing state for donor node " + nodeId
+ " from stealer node " + metadataStore.getNodeId());
}
} catch(VoldemortException e) {
response.setError(ProtoUtils.encodeError(errorCodeMapper, e));
logger.error("handleDeleteStoreRebalanceState failed for request("
+ request.toString() + ")",
e);
}
}
return response.build();
}
public VAdminProto.SetOfflineStateResponse handleSetOfflineState(VAdminProto.SetOfflineStateRequest request) {
VAdminProto.SetOfflineStateResponse.Builder response = VAdminProto.SetOfflineStateResponse.newBuilder();
try {
Boolean setToOffline = request.getOfflineMode();
logger.info("Setting OFFLINE_SERVER state to " + setToOffline.toString());
if(setToOffline) {
server.goOffline();
} else {
server.goOnline();
}
// TODO: deal with slop pushing here
} catch(VoldemortException e) {
response.setError(ProtoUtils.encodeError(errorCodeMapper, e));
logger.error("handleSetOfflineState failed for request(" + request.toString() + ")", e);
}
return response.build();
}
public VAdminProto.RebalanceStateChangeResponse handleRebalanceStateChange(VAdminProto.RebalanceStateChangeRequest request) {
VAdminProto.RebalanceStateChangeResponse.Builder response = VAdminProto.RebalanceStateChangeResponse.newBuilder();
synchronized(rebalancer) {
try {
// Retrieve all values first
List<RebalanceTaskInfo> rebalanceTaskInfo = Lists.newArrayList();
for(RebalanceTaskInfoMap map: request.getRebalanceTaskListList()) {
rebalanceTaskInfo.add(ProtoUtils.decodeRebalanceTaskInfoMap(map));
}
Cluster cluster = new ClusterMapper().readCluster(new StringReader(request.getClusterString()));
List<StoreDefinition> storeDefs = new StoreDefinitionsMapper().readStoreList(new StringReader(request.getStoresString()));
boolean swapRO = request.getSwapRo();
boolean changeClusterMetadata = request.getChangeClusterMetadata();
boolean changeRebalanceState = request.getChangeRebalanceState();
boolean rollback = request.getRollback();
rebalancer.rebalanceStateChange(cluster,
storeDefs,
rebalanceTaskInfo,
swapRO,
changeClusterMetadata,
changeRebalanceState,
rollback);
} catch(VoldemortException e) {
response.setError(ProtoUtils.encodeError(errorCodeMapper, e));
logger.error("handleRebalanceStateChange failed for request(" + request.toString()
+ ")", e);
}
}
return response.build();
}
public VAdminProto.AsyncOperationStatusResponse handleRebalanceNode(VAdminProto.InitiateRebalanceNodeRequest request) {
VAdminProto.AsyncOperationStatusResponse.Builder response = VAdminProto.AsyncOperationStatusResponse.newBuilder();
try {
if(!voldemortConfig.isEnableRebalanceService())
throw new VoldemortException("Rebalance service is not enabled for node: "
+ metadataStore.getNodeId());
// We should be in rebalancing state to run this function
if(!metadataStore.getServerStateUnlocked()
.equals(MetadataStore.VoldemortState.REBALANCING_MASTER_SERVER)) {
response.setError(ProtoUtils.encodeError(errorCodeMapper,
new VoldemortException("Voldemort server "
+ metadataStore.getNodeId()
+ " not in rebalancing state")));
return response.build();
}
RebalanceTaskInfo rebalanceStealInfo = ProtoUtils.decodeRebalanceTaskInfoMap(request.getRebalanceTaskInfo());
int requestId = rebalancer.rebalanceNode(rebalanceStealInfo);
response.setRequestId(requestId)
.setDescription(rebalanceStealInfo.toString())
.setStatus("Started rebalancing")
.setComplete(false);
} catch(VoldemortException e) {
response.setError(ProtoUtils.encodeError(errorCodeMapper, e));
logger.error("handleRebalanceNode failed for request(" + request.toString() + ")", e);
}
return response.build();
}
public VAdminProto.GetROCurrentVersionDirResponse handleGetROCurrentVersionDir(VAdminProto.GetROCurrentVersionDirRequest request) {
final List<String> storeNames = request.getStoreNameList();
VAdminProto.GetROCurrentVersionDirResponse.Builder response = VAdminProto.GetROCurrentVersionDirResponse.newBuilder();
try {
for(String storeName: storeNames) {
ReadOnlyStorageEngine store = getReadOnlyStorageEngine(metadataStore,
storeRepository,
storeName);
VAdminProto.ROStoreVersionDirMap storeResponse = VAdminProto.ROStoreVersionDirMap.newBuilder()
.setStoreName(storeName)
.setStoreDir(store.getCurrentDirPath())
.build();
response.addRoStoreVersions(storeResponse);
}
} catch(VoldemortException e) {
response.setError(ProtoUtils.encodeError(errorCodeMapper, e));
logger.error("handleGetROCurrentVersion failed for request(" + request.toString() + ")",
e);
}
return response.build();
}
public VAdminProto.GetROMaxVersionDirResponse handleGetROMaxVersionDir(VAdminProto.GetROMaxVersionDirRequest request) {
final List<String> storeNames = request.getStoreNameList();
VAdminProto.GetROMaxVersionDirResponse.Builder response = VAdminProto.GetROMaxVersionDirResponse.newBuilder();
try {
for(String storeName: storeNames) {
ReadOnlyStorageEngine store = getReadOnlyStorageEngine(metadataStore,
storeRepository,
storeName);
File storeDirPath = new File(store.getStoreDirPath());
if(!storeDirPath.exists())
throw new VoldemortException("Unable to locate the directory of the read-only store "
+ storeName);
File[] versionDirs = ReadOnlyUtils.getVersionDirs(storeDirPath);
File[] kthDir = ReadOnlyUtils.findKthVersionedDir(versionDirs,
versionDirs.length - 1,
versionDirs.length - 1);
VAdminProto.ROStoreVersionDirMap storeResponse = VAdminProto.ROStoreVersionDirMap.newBuilder()
.setStoreName(storeName)
.setStoreDir(kthDir[0].getAbsolutePath())
.build();
response.addRoStoreVersions(storeResponse);
}
} catch(VoldemortException e) {
response.setError(ProtoUtils.encodeError(errorCodeMapper, e));
logger.error("handleGetROMaxVersion failed for request(" + request.toString() + ")", e);
}
return response.build();
}
public VAdminProto.GetROStorageFormatResponse handleGetROStorageFormat(VAdminProto.GetROStorageFormatRequest request) {
final List<String> storeNames = request.getStoreNameList();
VAdminProto.GetROStorageFormatResponse.Builder response = VAdminProto.GetROStorageFormatResponse.newBuilder();
try {
for(String storeName: storeNames) {
ReadOnlyStorageEngine store = getReadOnlyStorageEngine(metadataStore,
storeRepository,
storeName);
VAdminProto.ROStoreVersionDirMap storeResponse = VAdminProto.ROStoreVersionDirMap.newBuilder()
.setStoreName(storeName)
.setStoreDir(store.getReadOnlyStorageFormat()
.getCode())
.build();
response.addRoStoreVersions(storeResponse);
}
} catch(VoldemortException e) {
response.setError(ProtoUtils.encodeError(errorCodeMapper, e));
logger.error("handleGetROStorageFormat failed for request(" + request.toString() + ")",
e);
}
return response.build();
}
public VAdminProto.FailedFetchStoreResponse handleFailedROFetch(VAdminProto.FailedFetchStoreRequest request) {
final String storeDir = request.getStoreDir();
final String storeName = request.getStoreName();
VAdminProto.FailedFetchStoreResponse.Builder response = VAdminProto.FailedFetchStoreResponse.newBuilder();
try {
if(!Utils.isReadableDir(storeDir))
throw new VoldemortException("Could not read folder " + storeDir
+ " correctly to delete it");
final ReadOnlyStorageEngine store = getReadOnlyStorageEngine(metadataStore,
storeRepository,
storeName);
if(store.getCurrentVersionId() == ReadOnlyUtils.getVersionId(new File(storeDir))) {
logger.warn("Cannot delete " + storeDir + " for " + storeName
+ " since it is the current dir");
return response.build();
}
logger.info("Deleting data from failed fetch for RO store '" + storeName
+ "' and directory '" + storeDir + "'");
// Lets delete the folder
Utils.rm(new File(storeDir));
logger.info("Successfully deleted data from failed fetch for RO store '" + storeName
+ "' and directory '" + storeDir + "'");
} catch(VoldemortException e) {
response.setError(ProtoUtils.encodeError(errorCodeMapper, e));
logger.error("handleFailedFetch failed for request(" + request.toString() + ")", e);
}
return response.build();
}
public VAdminProto.GetROStorageFileListResponse handleGetROStorageFileList(VAdminProto.GetROStorageFileListRequest request) {
String storeName = request.getStoreName();
VAdminProto.GetROStorageFileListResponse.Builder response = VAdminProto.GetROStorageFileListResponse.newBuilder();
try {
ReadOnlyStorageEngine store = getReadOnlyStorageEngine(metadataStore,
storeRepository,
storeName);
ChunkedFileSet chunkedFileSet = store.getChunkedFileSet();
response.addAllFileName(chunkedFileSet.getFileNames());
response.addAllIndexFileSize(chunkedFileSet.getIndexFileSizes());
response.addAllDataFileSize(chunkedFileSet.getDataFileSizes());
} catch(VoldemortException e) {
response.setError(ProtoUtils.encodeError(errorCodeMapper, e));
logger.error("handleGetROStorageFileList failed for request(" + request.toString()
+ ")", e);
}
return response.build();
}
public VAdminProto.GetROStorageCompressionCodecListResponse handleGetROCompressionCodecList(VAdminProto.GetROStorageCompressionCodecListRequest request) {
logger.info("Received request for supported compression codecs");
VAdminProto.GetROStorageCompressionCodecListResponse.Builder response = VAdminProto.GetROStorageCompressionCodecListResponse.newBuilder();
ArrayList<String> supportedCodecs = new ArrayList<String>();
supportedCodecs.add(this.voldemortConfig.getReadOnlyCompressionCodec());
response.addAllCompressionCodecs(supportedCodecs);
return response.build();
}
public StreamRequestHandler handleFetchROPartitionFiles(VAdminProto.FetchPartitionFilesRequest request) {
return new FetchPartitionFileStreamRequestHandler(request,
metadataStore,
voldemortConfig,
storeRepository);
}
public StreamRequestHandler handleUpdateSlopEntries(VAdminProto.UpdateSlopEntriesRequest request) {
return new UpdateSlopEntriesRequestHandler(request,
errorCodeMapper,
storeRepository,
voldemortConfig,
metadataStore);
}
public StreamRequestHandler handleFetchPartitionEntries(VAdminProto.FetchPartitionEntriesRequest request) {
boolean fetchValues = request.hasFetchValues() && request.getFetchValues();
boolean fetchOrphaned = request.hasFetchOrphaned() && request.getFetchOrphaned();
StorageEngine<ByteArray, byte[], byte[]> storageEngine = AdminServiceRequestHandler.getStorageEngine(storeRepository,
request.getStore());
if(fetchValues) {
if(storageEngine.isPartitionScanSupported() && !fetchOrphaned)
return new PartitionScanFetchEntriesRequestHandler(request,
metadataStore,
errorCodeMapper,
voldemortConfig,
storeRepository,
networkClassLoader);
else
return new FullScanFetchEntriesRequestHandler(request,
metadataStore,
errorCodeMapper,
voldemortConfig,
storeRepository,
networkClassLoader);
} else {
if(storageEngine.isPartitionScanSupported() && !fetchOrphaned)
return new PartitionScanFetchKeysRequestHandler(request,
metadataStore,
errorCodeMapper,
voldemortConfig,
storeRepository,
networkClassLoader);
else
return new FullScanFetchKeysRequestHandler(request,
metadataStore,
errorCodeMapper,
voldemortConfig,
storeRepository,
networkClassLoader);
}
}
public StreamRequestHandler handleUpdatePartitionEntries(VAdminProto.UpdatePartitionEntriesRequest request) {
StorageEngine<ByteArray, byte[], byte[]> storageEngine = AdminServiceRequestHandler.getStorageEngine(storeRepository,
request.getStore());
if(request.hasOverwriteIfLatestTs() && request.getOverwriteIfLatestTs()) {
// Resolve based on timestamp if specified.
return new TimeBasedUpdatePartitionEntriesStreamRequestHandler(request,
errorCodeMapper,
voldemortConfig,
storageEngine,
storeRepository,
networkClassLoader,
metadataStore);
} else {
// else resort to vector clock based resolving..
if(doesStorageEngineSupportMultiVersionPuts(storageEngine)) {
return new BufferedUpdatePartitionEntriesStreamRequestHandler(request,
errorCodeMapper,
voldemortConfig,
storageEngine,
storeRepository,
networkClassLoader,
metadataStore);
} else {
return new UpdatePartitionEntriesStreamRequestHandler(request,
errorCodeMapper,
voldemortConfig,
storageEngine,
storeRepository,
networkClassLoader,
metadataStore);
}
}
}
private boolean doesStorageEngineSupportMultiVersionPuts(StorageEngine<ByteArray, byte[], byte[]> storageEngine) {
if(!voldemortConfig.getMultiVersionStreamingPutsEnabled()
|| storageEngine instanceof MysqlStorageEngine
|| storageEngine instanceof SlopStorageEngine) {
return false;
}
return true;
}
public VAdminProto.AsyncOperationListResponse handleAsyncOperationList(VAdminProto.AsyncOperationListRequest request) {
VAdminProto.AsyncOperationListResponse.Builder response = VAdminProto.AsyncOperationListResponse.newBuilder();
boolean showComplete = request.getShowComplete();
try {
logger.info("Retrieving list of async operations "
+ ((showComplete) ? " [ including completed ids ]" : ""));
List<Integer> asyncIds = asyncService.getAsyncOperationList(showComplete);
logger.info("Retrieved list of async operations - " + asyncIds);
response.addAllRequestIds(asyncIds);
} catch(VoldemortException e) {
response.setError(ProtoUtils.encodeError(errorCodeMapper, e));
logger.error("handleAsyncOperationList failed for request(" + request.toString() + ")",
e);
}
return response.build();
}
public VAdminProto.AsyncOperationStopResponse handleAsyncOperationStop(VAdminProto.AsyncOperationStopRequest request) {
VAdminProto.AsyncOperationStopResponse.Builder response = VAdminProto.AsyncOperationStopResponse.newBuilder();
int requestId = request.getRequestId();
try {
logger.info("Stopping async id " + requestId);
asyncService.stopOperation(requestId);
logger.info("Successfully stopped async id " + requestId);
} catch(VoldemortException e) {
response.setError(ProtoUtils.encodeError(errorCodeMapper, e));
logger.error("handleAsyncOperationStop failed for request(" + request.toString() + ")",
e);
}
return response.build();
}
public VAdminProto.ListScheduledJobsResponse handleListScheduledJobs(VAdminProto.ListScheduledJobsRequest request) {
VAdminProto.ListScheduledJobsResponse.Builder response = VAdminProto.ListScheduledJobsResponse.newBuilder();
try {
logger.info("Retrieving list of scheduled jobs");
List<String> jobIds = scheduler.getAllJobs();
logger.info("Retrieved list of scheduled jobs - " + jobIds);
response.addAllJobIds(jobIds);
} catch(VoldemortException e) {
response.setError(ProtoUtils.encodeError(errorCodeMapper, e));
logger.error("handleListScheduledJobs failed for request(" + request.toString() + ")",
e);
}
return response.build();
}
public VAdminProto.GetScheduledJobStatusResponse handleGetScheduledJobStatus(VAdminProto.GetScheduledJobStatusRequest request) {
VAdminProto.GetScheduledJobStatusResponse.Builder response = VAdminProto.GetScheduledJobStatusResponse.newBuilder();
try {
String jobId = request.getJobId();
logger.info("Retrieving scheduled job status");
boolean enabled = scheduler.getJobEnabled(jobId);
logger.info("Retrieved scheduled job status - " + jobId);
response.setEnabled(enabled);
} catch(VoldemortException e) {
response.setError(ProtoUtils.encodeError(errorCodeMapper, e));
logger.error("handleGetScheduledJobStatus failed for request(" + request.toString() + ")",
e);
}
return response.build();
}
public VAdminProto.StopScheduledJobResponse handleStopScheduledJob(VAdminProto.StopScheduledJobRequest request) {
VAdminProto.StopScheduledJobResponse.Builder response = VAdminProto.StopScheduledJobResponse.newBuilder();
String jobId = request.getJobId();
try {
logger.info("Stopping job id " + jobId);
scheduler.terminate(jobId);
logger.info("Successfully stopped job id " + jobId);
} catch(VoldemortException e) {
response.setError(ProtoUtils.encodeError(errorCodeMapper, e));
logger.error("handleStopScheduledJob failed for request(" + request.toString() + ")",
e);
}
return response.build();
}
public VAdminProto.EnableScheduledJobResponse handleEnableScheduledJob(VAdminProto.EnableScheduledJobRequest request) {
VAdminProto.EnableScheduledJobResponse.Builder response = VAdminProto.EnableScheduledJobResponse.newBuilder();
String jobId = request.getJobId();
try {
logger.info("Enabling job id " + jobId);
scheduler.enable(jobId);
logger.info("Successfully enabled job id " + jobId);
} catch(VoldemortException e) {
response.setError(ProtoUtils.encodeError(errorCodeMapper, e));
logger.error("handleEnableScheduledJob failed for request(" + request.toString() + ")",
e);
}
return response.build();
}
public VAdminProto.RollbackStoreResponse handleRollbackStore(VAdminProto.RollbackStoreRequest request) {
final String storeName = request.getStoreName();
final long pushVersion = request.getPushVersion();
VAdminProto.RollbackStoreResponse.Builder response = VAdminProto.RollbackStoreResponse.newBuilder();
try {
ReadOnlyStorageEngine store = getReadOnlyStorageEngine(metadataStore,
storeRepository,
storeName);
File rollbackVersionDir = new File(store.getStoreDirPath(), "version-" + pushVersion);
logger.info("Rolling back data for RO store '" + storeName + "' to version directory '"
+ rollbackVersionDir + "'");
store.rollback(rollbackVersionDir);
logger.info("Successfully rolled back data for RO store '" + storeName
+ "' to version directory '" + rollbackVersionDir + "'");
} catch(VoldemortException e) {
response.setError(ProtoUtils.encodeError(errorCodeMapper, e));
logger.error("handleRollbackStore failed for request(" + request.toString() + ")", e);
}
return response.build();
}
public VAdminProto.RepairJobResponse handleRepairJob(VAdminProto.RepairJobRequest request) {
VAdminProto.RepairJobResponse.Builder response = VAdminProto.RepairJobResponse.newBuilder();
try {
int requestId = asyncService.getUniqueRequestId();
asyncService.submitOperation(requestId, new AsyncOperation(requestId, "Repair Job") {
@Override
public void operate() {
RepairJob job = storeRepository.getRepairJob();
if(job != null) {
if(job.getIsRunning().get()) {
logger.info("Repair job already running .. backing off.. ");
return;
}
logger.info("Starting the repair job now on ID : "
+ metadataStore.getNodeId());
job.run();
} else
logger.error("RepairJob is not initialized.");
}
@Override
public void stop() {
status.setException(new VoldemortException("Repair job interrupted"));
}
});
} catch(VoldemortException e) {
response.setError(ProtoUtils.encodeError(errorCodeMapper, e));
logger.error("Repair job failed for request : " + request.toString() + ")", e);
}
return response.build();
}
public VAdminProto.PruneJobResponse handlePruneJob(VAdminProto.PruneJobRequest request) {
VAdminProto.PruneJobResponse.Builder response = VAdminProto.PruneJobResponse.newBuilder();
try {
int requestId = asyncService.getUniqueRequestId();
final String storeName = request.getStoreName();
asyncService.submitOperation(requestId, new AsyncOperation(requestId, "Prune Job-"
+ storeName) {
@Override
public void operate() {
VersionedPutPruneJob job = storeRepository.getPruneJob();
if(job != null) {
if(job.getIsRunning().get()) {
logger.info("Prune job already running .. backing off.. ");
return;
}
job.setStoreName(storeName);
logger.info("Starting the prune job now on ID : "
+ metadataStore.getNodeId() + " for store " + storeName);
job.run();
} else {
logger.error("PruneJob is not initialized.");
}
}
@Override
public void stop() {
status.setException(new VoldemortException("Prune job interrupted"));
}
});
} catch(VoldemortException e) {
response.setError(ProtoUtils.encodeError(errorCodeMapper, e));
logger.error("Prune job failed for request : " + request.toString() + ")", e);
}
return response.build();
}
public VAdminProto.SlopPurgeJobResponse handleSlopPurgeJob(final VAdminProto.SlopPurgeJobRequest request) {
VAdminProto.SlopPurgeJobResponse.Builder response = VAdminProto.SlopPurgeJobResponse.newBuilder();
try {
int requestId = asyncService.getUniqueRequestId();
asyncService.submitOperation(requestId, new AsyncOperation(requestId, "SlopPurgeJob") {
@Override
public void operate() {
SlopPurgeJob job = storeRepository.getSlopPurgeJob();
if(job != null) {
if(job.getIsRunning().get()) {
logger.info(job.getJobName() + " already running .. backing off.. ");
return;
}
logger.info("Starting the " + job.getJobName() + " now on node ID : "
+ metadataStore.getNodeId());
job.setFilter(request.getFilterNodeIdsList(),
request.hasFilterZoneId() ? request.getFilterZoneId()
: Zone.UNSET_ZONE_ID,
request.getFilterStoreNamesList());
job.run();
} else {
logger.error("SlopPurgeJob is not initialized.");
}
}
@Override
public void stop() {
status.setException(new VoldemortException("SlopPurgeJob interrupted"));
}
});
} catch(VoldemortException e) {
response.setError(ProtoUtils.encodeError(errorCodeMapper, e));
logger.error("Slop Purge Job failed for request : " + request.toString() + ")", e);
}
return response.build();
}
/**
* Given a read-only store name and a directory, swaps it in while returning
* the directory path being swapped out
*
* @param storeName The name of the read-only store
* @param directory The directory being swapped in
* @return The directory path which was swapped out
* @throws VoldemortException
*/
private String swapStore(String storeName, String directory) throws VoldemortException {
ReadOnlyStorageEngine store = getReadOnlyStorageEngine(metadataStore,
storeRepository,
storeName);