forked from voldemort/voldemort
/
VoldemortAdminTool.java
1686 lines (1535 loc) · 81.8 KB
/
VoldemortAdminTool.java
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/*
* Copyright 2008-2010 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;
import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.BufferedWriter;
import java.io.ByteArrayInputStream;
import java.io.DataInputStream;
import java.io.DataOutputStream;
import java.io.EOFException;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.FileWriter;
import java.io.FilterOutputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.io.OutputStreamWriter;
import java.io.PrintStream;
import java.io.StringReader;
import java.io.StringWriter;
import java.io.Writer;
import java.util.ArrayList;
import java.util.Date;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.Map.Entry;
import java.util.Properties;
import java.util.Set;
import joptsimple.OptionParser;
import joptsimple.OptionSet;
import org.apache.avro.Schema;
import org.apache.commons.io.FileUtils;
import org.apache.log4j.Level;
import org.codehaus.jackson.JsonFactory;
import org.codehaus.jackson.JsonGenerator;
import org.codehaus.jackson.map.ObjectMapper;
import voldemort.client.protocol.admin.AdminClient;
import voldemort.client.protocol.admin.AdminClientConfig;
import voldemort.cluster.Cluster;
import voldemort.cluster.Node;
import voldemort.serialization.DefaultSerializerFactory;
import voldemort.serialization.Serializer;
import voldemort.serialization.SerializerDefinition;
import voldemort.serialization.SerializerFactory;
import voldemort.serialization.StringSerializer;
import voldemort.serialization.avro.versioned.SchemaEvolutionValidator;
import voldemort.serialization.avro.versioned.SchemaEvolutionValidator.Message;
import voldemort.server.rebalance.RebalancerState;
import voldemort.store.StoreDefinition;
import voldemort.store.compress.CompressionStrategy;
import voldemort.store.compress.CompressionStrategyFactory;
import voldemort.store.metadata.MetadataStore;
import voldemort.store.metadata.MetadataStore.VoldemortState;
import voldemort.store.readonly.ReadOnlyStorageConfiguration;
import voldemort.store.system.SystemStoreConstants;
import voldemort.utils.ByteArray;
import voldemort.utils.ByteUtils;
import voldemort.utils.CmdUtils;
import voldemort.utils.KeyDistributionGenerator;
import voldemort.utils.MetadataVersionStoreUtils;
import voldemort.utils.Pair;
import voldemort.utils.Utils;
import voldemort.versioning.VectorClock;
import voldemort.versioning.Versioned;
import voldemort.xml.ClusterMapper;
import voldemort.xml.StoreDefinitionsMapper;
import com.google.common.base.Joiner;
import com.google.common.collect.AbstractIterator;
import com.google.common.collect.ImmutableSet;
import com.google.common.collect.Lists;
import com.google.common.collect.Maps;
import com.google.common.collect.Sets;
/**
* Provides a command line interface to the
* {@link voldemort.client.protocol.admin.AdminClient}
*/
public class VoldemortAdminTool {
private static final String ALL_METADATA = "all";
private static final String STORES_VERSION_KEY = "stores.xml";
private static final String CLUSTER_VERSION_KEY = "cluster.xml";
@SuppressWarnings("unchecked")
public static void main(String[] args) throws Exception {
OptionParser parser = new OptionParser();
parser.accepts("help", "print help information");
parser.accepts("url", "[REQUIRED] bootstrap URL")
.withRequiredArg()
.describedAs("bootstrap-url")
.ofType(String.class);
parser.accepts("node", "node id")
.withRequiredArg()
.describedAs("node-id")
.ofType(Integer.class);
parser.accepts("delete-partitions", "Delete partitions")
.withRequiredArg()
.describedAs("partition-ids")
.withValuesSeparatedBy(',')
.ofType(Integer.class);
parser.accepts("restore",
"Restore from replication [ Optional parallelism param - Default - 5 ]")
.withOptionalArg()
.describedAs("parallelism")
.ofType(Integer.class);
parser.accepts("ascii", "Fetch keys as ASCII");
parser.accepts("fetch-keys", "Fetch keys")
.withOptionalArg()
.describedAs("partition-ids")
.withValuesSeparatedBy(',')
.ofType(Integer.class);
parser.accepts("fetch-entries", "Fetch full entries")
.withOptionalArg()
.describedAs("partition-ids")
.withValuesSeparatedBy(',')
.ofType(Integer.class);
parser.accepts("outdir", "Output directory")
.withRequiredArg()
.describedAs("output-directory")
.ofType(String.class);
parser.accepts("stores", "Store names")
.withRequiredArg()
.describedAs("store-names")
.withValuesSeparatedBy(',')
.ofType(String.class);
parser.accepts("store", "Store name for querying keys")
.withRequiredArg()
.describedAs("store-name")
.ofType(String.class);
parser.accepts("add-stores", "Add stores in this stores.xml")
.withRequiredArg()
.describedAs("stores.xml containing just the new stores")
.ofType(String.class);
parser.accepts("delete-store", "Delete store")
.withRequiredArg()
.describedAs("store-name")
.ofType(String.class);
parser.accepts("update-entries", "Insert or update entries")
.withRequiredArg()
.describedAs("input-directory")
.ofType(String.class);
parser.accepts("get-metadata",
"retreive metadata information " + MetadataStore.METADATA_KEYS)
.withOptionalArg()
.describedAs("metadata-key")
.ofType(String.class);
parser.accepts("check-metadata",
"retreive metadata information from all nodes and checks if they are consistent across [ "
+ MetadataStore.CLUSTER_KEY + " | " + MetadataStore.STORES_KEY
+ " | " + MetadataStore.SERVER_STATE_KEY + " ]")
.withRequiredArg()
.describedAs("metadata-key")
.ofType(String.class);
parser.accepts("ro-metadata",
"retrieve version information [current | max | storage-format]")
.withRequiredArg()
.describedAs("type")
.ofType(String.class);
parser.accepts("truncate", "truncate a store")
.withRequiredArg()
.describedAs("store-name")
.ofType(String.class);
parser.accepts("set-metadata",
"Forceful setting of metadata [ " + MetadataStore.CLUSTER_KEY + " | "
+ MetadataStore.STORES_KEY + " | " + MetadataStore.SERVER_STATE_KEY
+ " | " + MetadataStore.REBALANCING_STEAL_INFO + " ]")
.withRequiredArg()
.describedAs("metadata-key")
.ofType(String.class);
parser.accepts("set-metadata-value",
"The value for the set-metadata [ " + MetadataStore.CLUSTER_KEY + " | "
+ MetadataStore.STORES_KEY + ", "
+ MetadataStore.REBALANCING_STEAL_INFO
+ " ] - xml file location, [ " + MetadataStore.SERVER_STATE_KEY
+ " ] - " + MetadataStore.VoldemortState.NORMAL_SERVER + ","
+ MetadataStore.VoldemortState.REBALANCING_MASTER_SERVER)
.withRequiredArg()
.describedAs("metadata-value")
.ofType(String.class);
parser.accepts("key-distribution", "Prints the current key distribution of the cluster");
parser.accepts("clear-rebalancing-metadata", "Remove the metadata related to rebalancing");
parser.accepts("async",
"a) Get a list of async job ids [get] b) Stop async job ids [stop] ")
.withRequiredArg()
.describedAs("op-type")
.ofType(String.class);
parser.accepts("async-id", "Comma separated list of async ids to stop")
.withOptionalArg()
.describedAs("job-ids")
.withValuesSeparatedBy(',')
.ofType(Integer.class);
parser.accepts("repair-job", "Clean after rebalancing is done");
parser.accepts("native-backup", "Perform a native backup")
.withRequiredArg()
.describedAs("store-name")
.ofType(String.class);
parser.accepts("backup-dir")
.withRequiredArg()
.describedAs("backup-directory")
.ofType(String.class);
parser.accepts("backup-timeout")
.withRequiredArg()
.describedAs("minutes to wait for backup completion, default 30 mins")
.ofType(Integer.class);
parser.accepts("backup-verify",
"If provided, backup will also verify checksum (with extra overhead)");
parser.accepts("backup-incremental",
"Perform an incremental backup for point-in-time recovery."
+ " By default backup has latest consistent snapshot.");
parser.accepts("zone", "zone id")
.withRequiredArg()
.describedAs("zone-id")
.ofType(Integer.class);
parser.accepts("rollback", "rollback a store")
.withRequiredArg()
.describedAs("store-name")
.ofType(String.class);
parser.accepts("version", "Push version of store to rollback to")
.withRequiredArg()
.describedAs("version")
.ofType(Long.class);
parser.accepts("verify-metadata-version",
"Verify the version of Metadata on all the cluster nodes");
parser.accepts("synchronize-metadata-version",
"Synchronize the metadata versions across all the nodes.");
parser.accepts("reserve-memory", "Memory in MB to reserve for the store")
.withRequiredArg()
.describedAs("size-in-mb")
.ofType(Long.class);
parser.accepts("query-keys", "Get values of keys on specific nodes")
.withRequiredArg()
.describedAs("query-keys")
.withValuesSeparatedBy(',')
.ofType(String.class);
OptionSet options = parser.parse(args);
if(options.has("help")) {
printHelp(System.out, parser);
System.exit(0);
}
Set<String> missing = CmdUtils.missing(options, "url", "node");
if(missing.size() > 0) {
// Not the most elegant way to do this
if(!(missing.equals(ImmutableSet.of("node"))
&& (options.has("add-stores") || options.has("delete-store")
|| options.has("ro-metadata") || options.has("set-metadata")
|| options.has("get-metadata") || options.has("check-metadata") || options.has("key-distribution"))
|| options.has("truncate") || options.has("clear-rebalancing-metadata")
|| options.has("async") || options.has("native-backup") || options.has("rollback")
|| options.has("verify-metadata-version") || options.has("reserve-memory"))) {
System.err.println("Missing required arguments: " + Joiner.on(", ").join(missing));
printHelp(System.err, parser);
System.exit(1);
}
}
String url = (String) options.valueOf("url");
Integer nodeId = CmdUtils.valueOf(options, "node", -1);
int parallelism = CmdUtils.valueOf(options, "restore", 5);
Integer zoneId = CmdUtils.valueOf(options, "zone", -1);
int zone = zoneId == -1 ? 0 : zoneId;
AdminClient adminClient = new AdminClient(url, new AdminClientConfig(), zone);
if(options.has("verify-metadata-version")) {
checkMetadataVersion(adminClient);
return;
}
String ops = "";
if(options.has("delete-partitions")) {
ops += "d";
}
if(options.has("fetch-keys")) {
ops += "k";
}
if(options.has("fetch-entries")) {
ops += "v";
}
if(options.has("restore")) {
ops += "r";
}
if(options.has("add-stores")) {
ops += "a";
}
if(options.has("update-entries")) {
ops += "u";
}
if(options.has("delete-store")) {
ops += "s";
}
if(options.has("get-metadata")) {
ops += "g";
}
if(options.has("ro-metadata")) {
ops += "e";
}
if(options.has("truncate")) {
ops += "t";
}
if(options.has("set-metadata")) {
ops += "m";
}
if(options.has("check-metadata")) {
ops += "c";
}
if(options.has("key-distribution")) {
ops += "y";
}
if(options.has("clear-rebalancing-metadata")) {
ops += "i";
}
if(options.has("async")) {
ops += "b";
}
if(options.has("repair-job")) {
ops += "l";
}
if(options.has("native-backup")) {
if(!options.has("backup-dir")) {
Utils.croak("A backup directory must be specified with backup-dir option");
}
ops += "n";
}
if(options.has("rollback")) {
if(!options.has("version")) {
Utils.croak("A read-only push version must be specified with rollback option");
}
ops += "o";
}
if(options.has("synchronize-metadata-version")) {
ops += "z";
}
if(options.has("reserve-memory")) {
if(!options.has("stores")) {
Utils.croak("Specify the list of stores to reserve memory");
}
ops += "f";
}
if(options.has("query-keys")) {
ops += "q";
}
if(ops.length() < 1) {
Utils.croak("At least one of (delete-partitions, restore, add-node, fetch-entries, "
+ "fetch-keys, add-stores, delete-store, update-entries, get-metadata, ro-metadata, "
+ "set-metadata, check-metadata, key-distribution, clear-rebalancing-metadata, async, "
+ "repair-job, native-backup, rollback, reserve-memory, verify-metadata-version) must be specified");
}
List<String> storeNames = null;
if(options.has("stores")) {
List<String> temp = (List<String>) options.valuesOf("stores");
storeNames = temp;
}
String outputDir = null;
if(options.has("outdir")) {
outputDir = (String) options.valueOf("outdir");
}
try {
if(ops.contains("d")) {
System.out.println("Starting delete-partitions");
List<Integer> partitionIdList = (List<Integer>) options.valuesOf("delete-partitions");
executeDeletePartitions(nodeId, adminClient, partitionIdList, storeNames);
System.out.println("Finished delete-partitions");
}
if(ops.contains("r")) {
if(nodeId == -1) {
System.err.println("Cannot run restore without node id");
System.exit(1);
}
System.out.println("Starting restore");
adminClient.restoreDataFromReplications(nodeId, parallelism, zoneId);
System.out.println("Finished restore");
}
if(ops.contains("k")) {
boolean useAscii = options.has("ascii");
System.out.println("Starting fetch keys");
List<Integer> partitionIdList = null;
if(options.hasArgument("fetch-keys"))
partitionIdList = (List<Integer>) options.valuesOf("fetch-keys");
executeFetchKeys(nodeId,
adminClient,
partitionIdList,
outputDir,
storeNames,
useAscii);
}
if(ops.contains("v")) {
boolean useAscii = options.has("ascii");
System.out.println("Starting fetch entries");
List<Integer> partitionIdList = null;
if(options.hasArgument("fetch-entries"))
partitionIdList = (List<Integer>) options.valuesOf("fetch-entries");
executeFetchEntries(nodeId,
adminClient,
partitionIdList,
outputDir,
storeNames,
useAscii);
}
if(ops.contains("a")) {
String storesXml = (String) options.valueOf("add-stores");
executeAddStores(adminClient, storesXml, nodeId);
}
if(ops.contains("u")) {
String inputDir = (String) options.valueOf("update-entries");
executeUpdateEntries(nodeId, adminClient, storeNames, inputDir);
}
if(ops.contains("s")) {
String storeName = (String) options.valueOf("delete-store");
executeDeleteStore(adminClient, storeName, nodeId);
}
if(ops.contains("g")) {
String metadataKey = ALL_METADATA;
if(options.hasArgument("get-metadata")) {
metadataKey = (String) options.valueOf("get-metadata");
}
executeGetMetadata(nodeId, adminClient, metadataKey, outputDir);
}
if(ops.contains("e")) {
String type = (String) options.valueOf("ro-metadata");
executeROMetadata(nodeId, adminClient, storeNames, type);
}
if(ops.contains("t")) {
String storeName = (String) options.valueOf("truncate");
executeTruncateStore(nodeId, adminClient, storeName);
}
if(ops.contains("c")) {
String metadataKey = (String) options.valueOf("check-metadata");
executeCheckMetadata(adminClient, metadataKey);
}
if(ops.contains("m")) {
String metadataKey = (String) options.valueOf("set-metadata");
if(!options.has("set-metadata-value")) {
throw new VoldemortException("Missing set-metadata-value");
} else {
String metadataValue = (String) options.valueOf("set-metadata-value");
if(metadataKey.compareTo(MetadataStore.CLUSTER_KEY) == 0) {
if(!Utils.isReadableFile(metadataValue))
throw new VoldemortException("Cluster xml file path incorrect");
ClusterMapper mapper = new ClusterMapper();
Cluster newCluster = mapper.readCluster(new File(metadataValue));
executeSetMetadata(nodeId,
adminClient,
MetadataStore.CLUSTER_KEY,
mapper.writeCluster(newCluster));
} else if(metadataKey.compareTo(MetadataStore.SERVER_STATE_KEY) == 0) {
VoldemortState newState = VoldemortState.valueOf(metadataValue);
executeSetMetadata(nodeId,
adminClient,
MetadataStore.SERVER_STATE_KEY,
newState.toString());
} else if(metadataKey.compareTo(MetadataStore.STORES_KEY) == 0) {
if(!Utils.isReadableFile(metadataValue))
throw new VoldemortException("Stores definition xml file path incorrect");
StoreDefinitionsMapper mapper = new StoreDefinitionsMapper();
List<StoreDefinition> storeDefs = mapper.readStoreList(new File(metadataValue));
String AVRO_GENERIC_VERSIONED_TYPE_NAME = "avro-generic-versioned";
for(StoreDefinition storeDef: storeDefs) {
SerializerDefinition keySerDef = storeDef.getKeySerializer();
SerializerDefinition valueSerDef = storeDef.getValueSerializer();
if(keySerDef.getName().equals(AVRO_GENERIC_VERSIONED_TYPE_NAME)) {
checkSchemaCompatibility(keySerDef);
}
if(valueSerDef.getName().equals(AVRO_GENERIC_VERSIONED_TYPE_NAME)) {
checkSchemaCompatibility(valueSerDef);
}
}
executeSetMetadata(nodeId,
adminClient,
MetadataStore.STORES_KEY,
mapper.writeStoreList(storeDefs));
} else if(metadataKey.compareTo(MetadataStore.REBALANCING_STEAL_INFO) == 0) {
if(!Utils.isReadableFile(metadataValue))
throw new VoldemortException("Rebalancing steal info file path incorrect");
String rebalancingStealInfoJsonString = FileUtils.readFileToString(new File(metadataValue));
RebalancerState state = RebalancerState.create(rebalancingStealInfoJsonString);
executeSetMetadata(nodeId,
adminClient,
MetadataStore.REBALANCING_STEAL_INFO,
state.toJsonString());
} else {
throw new VoldemortException("Incorrect metadata key");
}
}
}
if(ops.contains("y")) {
executeKeyDistribution(adminClient);
}
if(ops.contains("i")) {
executeClearRebalancing(nodeId, adminClient);
}
if(ops.contains("b")) {
String asyncKey = (String) options.valueOf("async");
List<Integer> asyncIds = null;
if(options.hasArgument("async-id"))
asyncIds = (List<Integer>) options.valuesOf("async-id");
executeAsync(nodeId, adminClient, asyncKey, asyncIds);
}
if(ops.contains("l")) {
executeRepairJob(nodeId, adminClient);
}
if(ops.contains("n")) {
String backupDir = (String) options.valueOf("backup-dir");
String storeName = (String) options.valueOf("native-backup");
int timeout = CmdUtils.valueOf(options, "backup-timeout", 30);
adminClient.nativeBackup(nodeId,
storeName,
backupDir,
timeout,
options.has("backup-verify"),
options.has("backup-incremental"));
}
if(ops.contains("o")) {
String storeName = (String) options.valueOf("rollback");
long pushVersion = (Long) options.valueOf("version");
executeRollback(nodeId, storeName, pushVersion, adminClient);
}
if(ops.contains("z")) {
synchronizeMetadataVersion(adminClient, nodeId);
}
if(ops.contains("f")) {
long reserveMB = (Long) options.valueOf("reserve-memory");
adminClient.reserveMemory(nodeId, storeNames, reserveMB);
}
if(ops.contains("q")) {
List<String> keyList = (List<String>) options.valuesOf("query-keys");
if(storeNames == null || storeNames.size() == 0) {
throw new VoldemortException("Must specify store name using --stores option");
}
executeQueryKeys(nodeId, adminClient, storeNames, keyList);
}
} catch(Exception e) {
e.printStackTrace();
Utils.croak(e.getMessage());
}
}
private static String getMetadataVersionsForNode(AdminClient adminClient, int nodeId) {
List<Integer> partitionIdList = Lists.newArrayList();
for(Node node: adminClient.getAdminClientCluster().getNodes()) {
partitionIdList.addAll(node.getPartitionIds());
}
Iterator<Pair<ByteArray, Versioned<byte[]>>> entriesIterator = adminClient.fetchEntries(nodeId,
SystemStoreConstants.SystemStoreName.voldsys$_metadata_version_persistence.name(),
partitionIdList,
null,
true);
Serializer<String> serializer = new StringSerializer("UTF8");
String keyObject = null;
String valueObject = null;
while(entriesIterator.hasNext()) {
try {
Pair<ByteArray, Versioned<byte[]>> kvPair = entriesIterator.next();
byte[] keyBytes = kvPair.getFirst().get();
byte[] valueBytes = kvPair.getSecond().getValue();
keyObject = serializer.toObject(keyBytes);
if(!keyObject.equals(MetadataVersionStoreUtils.VERSIONS_METADATA_KEY)) {
continue;
}
valueObject = serializer.toObject(valueBytes);
} catch(Exception e) {
System.err.println("Error while retrieving Metadata versions from node : " + nodeId
+ ". Exception = \n");
e.printStackTrace();
System.exit(-1);
}
}
return valueObject;
}
private static void checkMetadataVersion(AdminClient adminClient) {
Map<Properties, Integer> versionsNodeMap = new HashMap<Properties, Integer>();
for(Node node: adminClient.getAdminClientCluster().getNodes()) {
String valueObject = getMetadataVersionsForNode(adminClient, node.getId());
Properties props = new Properties();
try {
props.load(new ByteArrayInputStream(valueObject.getBytes()));
} catch(IOException e) {
System.err.println("Error while parsing Metadata versions for node : "
+ node.getId() + ". Exception = \n");
e.printStackTrace();
System.exit(-1);
}
versionsNodeMap.put(props, node.getId());
}
if(versionsNodeMap.keySet().size() > 1) {
System.err.println("Mismatching versions detected !!!");
for(Entry<Properties, Integer> entry: versionsNodeMap.entrySet()) {
System.out.println("**************************** Node: " + entry.getValue()
+ " ****************************");
System.out.println(entry.getKey());
}
} else {
System.err.println("All the nodes have the same metadata versions .");
}
}
private static void synchronizeMetadataVersion(AdminClient adminClient, int baseNodeId) {
String valueObject = getMetadataVersionsForNode(adminClient, baseNodeId);
Properties props = new Properties();
try {
props.load(new ByteArrayInputStream(valueObject.getBytes()));
if(props.size() == 0) {
System.err.println("The specified node does not have any versions metadata ! Exiting ...");
System.exit(-1);
}
adminClient.setMetadataversion(props);
System.out.println("Metadata versions synchronized successfully.");
} catch(IOException e) {
System.err.println("Error while retrieving Metadata versions from node : " + baseNodeId
+ ". Exception = \n");
e.printStackTrace();
System.exit(-1);
}
}
public static void checkSchemaCompatibility(SerializerDefinition serDef) throws Exception {
Map<Integer, String> schemaVersions = serDef.getAllSchemaInfoVersions();
Iterator schemaIterator = schemaVersions.entrySet().iterator();
Schema firstSchema = null;
Schema secondSchema = null;
String firstSchemaStr;
String secondSchemaStr;
if(!schemaIterator.hasNext())
throw new VoldemortException("No schema specified");
Map.Entry schemaPair = (Map.Entry) schemaIterator.next();
firstSchemaStr = (String) schemaPair.getValue();
while(schemaIterator.hasNext()) {
schemaPair = (Map.Entry) schemaIterator.next();
secondSchemaStr = (String) schemaPair.getValue();
Schema oldSchema = Schema.parse(firstSchemaStr);
Schema newSchema = Schema.parse(secondSchemaStr);
List<Message> messages = SchemaEvolutionValidator.checkBackwardCompatability(oldSchema,
newSchema,
oldSchema.getName());
Level maxLevel = Level.ALL;
for(Message message: messages) {
System.out.println(message.getLevel() + ": " + message.getMessage());
if(message.getLevel().isGreaterOrEqual(maxLevel)) {
maxLevel = message.getLevel();
}
}
if(maxLevel.isGreaterOrEqual(Level.ERROR)) {
System.out.println(Level.ERROR
+ ": The schema is not backward compatible. New clients will not be able to read existing data.");
throw new VoldemortException(" The schema is not backward compatible. New clients will not be able to read existing data.");
} else if(maxLevel.isGreaterOrEqual(Level.WARN)) {
System.out.println(Level.WARN
+ ": The schema is partially backward compatible, but old clients will not be able to read data serialized in the new format.");
throw new VoldemortException("The schema is partially backward compatible, but old clients will not be able to read data serialized in the new format.");
} else {
System.out.println(Level.INFO
+ ": The schema is backward compatible. Old and new clients will be able to read records serialized by one another.");
}
firstSchemaStr = secondSchemaStr;
}
}
private static void executeRollback(Integer nodeId,
String storeName,
long pushVersion,
AdminClient adminClient) {
if(nodeId < 0) {
for(Node node: adminClient.getAdminClientCluster().getNodes()) {
adminClient.rollbackStore(node.getId(), storeName, pushVersion);
}
} else {
adminClient.rollbackStore(nodeId, storeName, pushVersion);
}
}
private static void executeRepairJob(Integer nodeId, AdminClient adminClient) {
if(nodeId < 0) {
for(Node node: adminClient.getAdminClientCluster().getNodes()) {
adminClient.repairJob(node.getId());
}
} else {
adminClient.repairJob(nodeId);
}
}
public static void printHelp(PrintStream stream, OptionParser parser) throws IOException {
stream.println("Commands supported");
stream.println("------------------");
stream.println("CHANGE METADATA");
stream.println("\t1) Get all metadata from all nodes");
stream.println("\t\t./bin/voldemort-admin-tool.sh --get-metadata --url [url]");
stream.println("\t2) Get metadata from all nodes");
stream.println("\t\t./bin/voldemort-admin-tool.sh --get-metadata "
+ MetadataStore.METADATA_KEYS + " --url [url]");
stream.println("\t3) Get metadata from a particular node");
stream.println("\t\t./bin/voldemort-admin-tool.sh --get-metadata "
+ MetadataStore.METADATA_KEYS + " --url [url] --node [node-id]");
stream.println("\t4) Get metadata from a particular node and store to a directory");
stream.println("\t\t./bin/voldemort-admin-tool.sh --get-metadata "
+ MetadataStore.METADATA_KEYS
+ " --url [url] --node [node-id] --outdir [directory]");
stream.println("\t5) Set metadata on all nodes");
stream.println("\t\t./bin/voldemort-admin-tool.sh --set-metadata ["
+ MetadataStore.CLUSTER_KEY + ", " + MetadataStore.SERVER_STATE_KEY + ", "
+ MetadataStore.STORES_KEY + ", " + MetadataStore.REBALANCING_STEAL_INFO
+ "] --set-metadata-value [metadata-value] --url [url]");
stream.println("\t6) Set metadata for a particular node");
stream.println("\t\t./bin/voldemort-admin-tool.sh --set-metadata ["
+ MetadataStore.CLUSTER_KEY + ", " + MetadataStore.SERVER_STATE_KEY + ", "
+ MetadataStore.STORES_KEY + ", " + MetadataStore.REBALANCING_STEAL_INFO
+ "] --set-metadata-value [metadata-value] --url [url] --node [node-id]");
stream.println("\t7) Check if metadata is same on all nodes");
stream.println("\t\t./bin/voldemort-admin-tool.sh --check-metadata ["
+ MetadataStore.CLUSTER_KEY + ", " + MetadataStore.SERVER_STATE_KEY + ", "
+ MetadataStore.STORES_KEY + "] --url [url]");
stream.println("\t8) Clear rebalancing metadata [" + MetadataStore.SERVER_STATE_KEY + ", "
+ MetadataStore.REBALANCING_STEAL_INFO + "] on all node ");
stream.println("\t\t./bin/voldemort-admin-tool.sh --clear-rebalancing-metadata --url [url]");
stream.println("\t9) Clear rebalancing metadata [" + MetadataStore.SERVER_STATE_KEY + ", "
+ MetadataStore.REBALANCING_STEAL_INFO + "] on a particular node ");
stream.println("\t\t./bin/voldemort-admin-tool.sh --clear-rebalancing-metadata --url [url] --node [node-id]");
stream.println();
stream.println("ADD / DELETE STORES");
stream.println("\t1) Add store(s) on all nodes");
stream.println("\t\t./bin/voldemort-admin-tool.sh --add-stores [xml file with store(s) to add] --url [url]");
stream.println("\t2) Add store(s) on a single node");
stream.println("\t\t./bin/voldemort-admin-tool.sh --add-stores [xml file with store(s) to add] --url [url] --node [node-id]");
stream.println("\t3) Delete store on all nodes");
stream.println("\t\t./bin/voldemort-admin-tool.sh --delete-store [store-name] --url [url]");
stream.println("\t4) Delete store on a single node");
stream.println("\t\t./bin/voldemort-admin-tool.sh --delete-store [store-name] --url [url] --node [node-id]");
stream.println("\t5) Delete the contents of the store on all nodes");
stream.println("\t\t./bin/voldemort-admin-tool.sh --truncate [store-name] --url [url]");
stream.println("\t6) Delete the contents of the store on a single node");
stream.println("\t\t./bin/voldemort-admin-tool.sh --truncate [store-name] --url [url] --node [node-id]");
stream.println("\t7) Delete the contents of some partitions on a single node");
stream.println("\t\t./bin/voldemort-admin-tool.sh --delete-partitions [comma-separated list of partitions] --url [url] --node [node-id]");
stream.println("\t8) Delete the contents of some partitions ( of some stores ) on a single node");
stream.println("\t\t./bin/voldemort-admin-tool.sh --delete-partitions [comma-separated list of partitions] --url [url] --node [node-id] --stores [comma-separated list of store names]");
stream.println();
stream.println("STREAM DATA");
stream.println("\t1) Fetch keys from a set of partitions [ all stores ] on a node ( binary dump )");
stream.println("\t\t./bin/voldemort-admin-tool.sh --fetch-keys [comma-separated list of partitions with no space] --url [url] --node [node-id]");
stream.println("\t2) Fetch keys from a set of partitions [ all stores ] on a node ( ascii enabled )");
stream.println("\t\t./bin/voldemort-admin-tool.sh --fetch-keys [comma-separated list of partitions with no space] --url [url] --node [node-id] --ascii");
stream.println("\t3) Fetch entries from a set of partitions [ all stores ] on a node ( binary dump )");
stream.println("\t\t./bin/voldemort-admin-tool.sh --fetch-entries [comma-separated list of partitions with no space] --url [url] --node [node-id]");
stream.println("\t4) Fetch entries from a set of partitions [ all stores ] on a node ( ascii enabled )");
stream.println("\t\t./bin/voldemort-admin-tool.sh --fetch-entries [comma-separated list of partitions with no space] --url [url] --node [node-id] --ascii");
stream.println("\t5) Fetch entries from a set of partitions [ all stores ] on a node ( ascii enabled ) and output to a folder");
stream.println("\t\t./bin/voldemort-admin-tool.sh --fetch-entries [comma-separated list of partitions with no space] --url [url] --node [node-id] --ascii --outdir [directory]");
stream.println("\t6) Fetch entries from a set of partitions and some stores on a node ( ascii enabled )");
stream.println("\t\t./bin/voldemort-admin-tool.sh --fetch-entries [comma-separated list of partitions with no space] --url [url] --node [node-id] --ascii --stores [comma-separated list of store names] ");
stream.println("\t7) Fetch all keys on a particular node");
stream.println("\t\t./bin/voldemort-admin-tool.sh --fetch-keys --url [url] --node [node-id]");
stream.println("\t8) Fetch all entries on a particular node");
stream.println("\t\t./bin/voldemort-admin-tool.sh --fetch-entries --url [url] --node [node-id]");
stream.println("\t9) Update entries for a set of stores using the output from a binary dump fetch entries");
stream.println("\t\t./bin/voldemort-admin-tool.sh --update-entries [folder path from output of --fetch-entries --outdir] --url [url] --node [node-id] --stores [comma-separated list of store names]");
stream.println("\t10) Query stores for a set of keys on a specific node.");
stream.println("\t\t./bin/voldemort-admin-tool.sh --query-keys [comma-separated list of keys] --url [url] --node [node-id] --stores [comma-separated list of store names]");
stream.println();
stream.println("READ-ONLY OPERATIONS");
stream.println("\t1) Retrieve metadata information of read-only data for a particular node and all stores");
stream.println("\t\t./bin/voldemort-admin-tool.sh --ro-metadata [current | max | storage-format] --url [url] --node [node-id]");
stream.println("\t2) Retrieve metadata information of read-only data for all nodes and a set of store");
stream.println("\t\t./bin/voldemort-admin-tool.sh --ro-metadata [current | max | storage-format] --url [url] --stores [comma-separated list of store names]");
stream.println();
stream.println("ASYNC JOBS");
stream.println("\t1) Get a list of async jobs on all nodes");
stream.println("\t\t./bin/voldemort-admin-tool.sh --async get --url [url]");
stream.println("\t2) Get a list of async jobs on a particular node");
stream.println("\t\t./bin/voldemort-admin-tool.sh --async get --url [url] --node [node-id]");
stream.println("\t3) Stop a list of async jobs on a particular node");
stream.println("\t\t./bin/voldemort-admin-tool.sh --async stop --async-id [comma-separated list of async job id] --url [url] --node [node-id]");
stream.println();
stream.println("OTHERS");
stream.println("\t1) Restore a particular node completely from its replicas");
stream.println("\t\t./bin/voldemort-admin-tool.sh --restore --url [url] --node [node-id]");
stream.println("\t2) Restore a particular node completely from its replicas ( with increased parallelism - 10 ) ");
stream.println("\t\t./bin/voldemort-admin-tool.sh --restore 10 --url [url] --node [node-id]");
stream.println("\t3) Generates the key distribution on a per node basis [ both store wise and overall ]");
stream.println("\t\t./bin/voldemort-admin-tool.sh --key-distribution --url [url]");
stream.println("\t4) Clean a node after rebalancing is done");
stream.println("\t\t./bin/voldemort-admin-tool.sh --repair-job --url [url] --node [node-id]");
stream.println("\t5) Backup bdb data natively");
stream.println("\t\t./bin/voldemort-admin-tool.sh --native-backup [store] --backup-dir [outdir] "
+ "--backup-timeout [mins] [--backup-verify] [--backup-incremental] --url [url] --node [node-id]");
stream.println("\t6) Rollback a read-only store to the specified push version");
stream.println("\t\t./bin/voldemort-admin-tool.sh --rollback [store-name] --url [url] --node [node-id] --version [version-num] ");
parser.printHelpOn(stream);
}
private static void executeAsync(Integer nodeId,
AdminClient adminClient,
String asyncKey,
List<Integer> asyncIdsToStop) {
if(asyncKey.compareTo("get") == 0) {
List<Integer> nodeIds = Lists.newArrayList();
if(nodeId < 0) {
for(Node node: adminClient.getAdminClientCluster().getNodes()) {
nodeIds.add(node.getId());
}
} else {
nodeIds.add(nodeId);
}
// Print the job information
for(int currentNodeId: nodeIds) {
System.out.println("Retrieving async jobs from node " + currentNodeId);
List<Integer> asyncIds = adminClient.getAsyncRequestList(currentNodeId);
System.out.println("Async Job Ids on node " + currentNodeId + " : " + asyncIds);
for(int asyncId: asyncIds) {
System.out.println("Async Job Id " + asyncId + " ] "
+ adminClient.getAsyncRequestStatus(currentNodeId, asyncId));
System.out.println();
}
}
} else if(asyncKey.compareTo("stop") == 0) {
if(nodeId < 0) {
throw new VoldemortException("Cannot stop job ids without node id");
}
if(asyncIdsToStop == null || asyncIdsToStop.size() == 0) {
throw new VoldemortException("Async ids cannot be null / zero");
}
for(int asyncId: asyncIdsToStop) {
System.out.println("Stopping async id " + asyncId);
adminClient.stopAsyncRequest(nodeId, asyncId);
System.out.println("Stopped async id " + asyncId);
}
} else {
throw new VoldemortException("Unsupported async operation type " + asyncKey);
}
}
private static void executeClearRebalancing(int nodeId, AdminClient adminClient) {
System.out.println("Setting " + MetadataStore.SERVER_STATE_KEY + " to "
+ MetadataStore.VoldemortState.NORMAL_SERVER);
executeSetMetadata(nodeId,
adminClient,
MetadataStore.SERVER_STATE_KEY,
MetadataStore.VoldemortState.NORMAL_SERVER.toString());
RebalancerState state = RebalancerState.create("[]");
System.out.println("Cleaning up " + MetadataStore.REBALANCING_STEAL_INFO + " to "
+ state.toJsonString());
executeSetMetadata(nodeId,
adminClient,
MetadataStore.REBALANCING_STEAL_INFO,
state.toJsonString());
}
private static void executeKeyDistribution(AdminClient adminClient) {
List<ByteArray> keys = KeyDistributionGenerator.generateKeys(KeyDistributionGenerator.DEFAULT_NUM_KEYS);
System.out.println(KeyDistributionGenerator.printStoreWiseDistribution(adminClient.getAdminClientCluster(),
adminClient.getRemoteStoreDefList(0)
.getValue(),
keys));
System.out.println(KeyDistributionGenerator.printOverallDistribution(adminClient.getAdminClientCluster(),
adminClient.getRemoteStoreDefList(0)
.getValue(),
keys));
}
private static void executeCheckMetadata(AdminClient adminClient, String metadataKey) {
Set<Object> metadataValues = Sets.newHashSet();
for(Node node: adminClient.getAdminClientCluster().getNodes()) {
System.out.println(node.getHost() + ":" + node.getId());
Versioned<String> versioned = adminClient.getRemoteMetadata(node.getId(), metadataKey);
if(versioned == null || versioned.getValue() == null) {
throw new VoldemortException("Value returned from node " + node.getId()
+ " was null");
} else {
if(metadataKey.compareTo(MetadataStore.CLUSTER_KEY) == 0) {
metadataValues.add(new ClusterMapper().readCluster(new StringReader(versioned.getValue())));
} else if(metadataKey.compareTo(MetadataStore.STORES_KEY) == 0) {
metadataValues.add(new StoreDefinitionsMapper().readStoreList(new StringReader(versioned.getValue())));
} else if(metadataKey.compareTo(MetadataStore.SERVER_STATE_KEY) == 0) {
metadataValues.add(VoldemortState.valueOf(versioned.getValue()));
} else {
throw new VoldemortException("Incorrect metadata key");
}
}
}
if(metadataValues.size() == 1) {
System.out.println("true");
} else {
System.out.println("false");
}
}
public static void executeSetMetadata(Integer nodeId,
AdminClient adminClient,
String key,
Object value) {
List<Integer> nodeIds = Lists.newArrayList();
VectorClock updatedVersion = null;
if(nodeId < 0) {
for(Node node: adminClient.getAdminClientCluster().getNodes()) {
nodeIds.add(node.getId());
if(updatedVersion == null) {
updatedVersion = (VectorClock) adminClient.getRemoteMetadata(node.getId(), key)
.getVersion();
} else {
updatedVersion = updatedVersion.merge((VectorClock) adminClient.getRemoteMetadata(node.getId(),
key)
.getVersion());
}
}
// Bump up version on node 0
updatedVersion = updatedVersion.incremented(0, System.currentTimeMillis());
} else {
Versioned<String> currentValue = adminClient.getRemoteMetadata(nodeId, key);
updatedVersion = ((VectorClock) currentValue.getVersion()).incremented(nodeId,
System.currentTimeMillis());
nodeIds.add(nodeId);
}
adminClient.updateRemoteMetadata(nodeIds,
key,
Versioned.value(value.toString(), updatedVersion));
}
private static void executeROMetadata(Integer nodeId,
AdminClient adminClient,
List<String> storeNames,
String type) {
Map<String, Long> storeToValue = Maps.newHashMap();
if(storeNames == null) {
// Retrieve list of read-only stores
storeNames = Lists.newArrayList();
for(StoreDefinition storeDef: adminClient.getRemoteStoreDefList(nodeId > 0 ? nodeId : 0)
.getValue()) {