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HDFS-6056. Clean up NFS config settings. Contributed by Brandon Li

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git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1598782 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Brandon Li 2014-05-30 23:53:00 +00:00
parent 12cf17555f
commit 42391d260d
33 changed files with 403 additions and 232 deletions
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4
hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/conf/Configuration.java
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@ -423,7 +423,9 @@ Map<String, String> getReverseDeprecatedKeyMap() {
new DeprecationDelta("fs.default.name",
CommonConfigurationKeys.FS_DEFAULT_NAME_KEY),
new DeprecationDelta("dfs.umaskmode",
CommonConfigurationKeys.FS_PERMISSIONS_UMASK_KEY)
CommonConfigurationKeys.FS_PERMISSIONS_UMASK_KEY),
new DeprecationDelta("dfs.nfs.exports.allowed.hosts",
CommonConfigurationKeys.NFS_EXPORTS_ALLOWED_HOSTS_KEY)
};
/**

6
hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/fs/CommonConfigurationKeys.java
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@ -265,4 +265,10 @@ public class CommonConfigurationKeys extends CommonConfigurationKeysPublic {
public static final boolean RPC_METRICS_QUANTILE_ENABLE_DEFAULT = false;
public static final String RPC_METRICS_PERCENTILES_INTERVALS_KEY =
"rpc.metrics.percentiles.intervals";
/** Allowed hosts for nfs exports */
public static final String NFS_EXPORTS_ALLOWED_HOSTS_SEPARATOR = ";";
public static final String NFS_EXPORTS_ALLOWED_HOSTS_KEY = "nfs.exports.allowed.hosts";
public static final String NFS_EXPORTS_ALLOWED_HOSTS_KEY_DEFAULT = "* rw";
}

21
hadoop-common-project/hadoop-common/src/main/resources/core-default.xml
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@ -1309,18 +1309,17 @@
</property>
<property>
<name>nfs3.server.port</name>
<value>2049</value>
<name>nfs.exports.allowed.hosts</name>
<value>* rw</value>
<description>
Specify the port number used by Hadoop NFS.
</description>
</property>
<property>
<name>nfs3.mountd.port</name>
<value>4242</value>
<description>
Specify the port number used by Hadoop mount daemon.
By default, the export can be mounted by any client. The value string
contains machine name and access privilege, separated by whitespace
characters. The machine name format can be a single host, a Java regular
expression, or an IPv4 address. The access privilege uses rw or ro to
specify read/write or read-only access of the machines to exports. If the
access privilege is not provided, the default is read-only. Entries are separated by ";".
For example: "192.168.0.0/22 rw ; host.*\.example\.com ; host1.test.org ro;".
Only the NFS gateway needs to restart after this property is updated.
</description>
</property>

16
hadoop-common-project/hadoop-nfs/src/main/java/org/apache/hadoop/nfs/NfsExports.java
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@ -27,6 +27,7 @@
import org.apache.commons.net.util.SubnetUtils;
import org.apache.commons.net.util.SubnetUtils.SubnetInfo;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.fs.CommonConfigurationKeys;
import org.apache.hadoop.nfs.nfs3.Nfs3Constant;
import org.apache.hadoop.util.LightWeightCache;
import org.apache.hadoop.util.LightWeightGSet;
@ -44,13 +45,14 @@ public class NfsExports {
public static synchronized NfsExports getInstance(Configuration conf) {
if (exports == null) {
String matchHosts = conf.get(Nfs3Constant.EXPORTS_ALLOWED_HOSTS_KEY,
Nfs3Constant.EXPORTS_ALLOWED_HOSTS_KEY_DEFAULT);
int cacheSize = conf.getInt(Nfs3Constant.EXPORTS_CACHE_SIZE_KEY,
Nfs3Constant.EXPORTS_CACHE_SIZE_DEFAULT);
String matchHosts = conf.get(
CommonConfigurationKeys.NFS_EXPORTS_ALLOWED_HOSTS_KEY,
CommonConfigurationKeys.NFS_EXPORTS_ALLOWED_HOSTS_KEY_DEFAULT);
int cacheSize = conf.getInt(Nfs3Constant.NFS_EXPORTS_CACHE_SIZE_KEY,
Nfs3Constant.NFS_EXPORTS_CACHE_SIZE_DEFAULT);
long expirationPeriodNano = conf.getLong(
Nfs3Constant.EXPORTS_CACHE_EXPIRYTIME_MILLIS_KEY,
Nfs3Constant.EXPORTS_CACHE_EXPIRYTIME_MILLIS_DEFAULT) * 1000 * 1000;
Nfs3Constant.NFS_EXPORTS_CACHE_EXPIRYTIME_MILLIS_KEY,
Nfs3Constant.NFS_EXPORTS_CACHE_EXPIRYTIME_MILLIS_DEFAULT) * 1000 * 1000;
exports = new NfsExports(cacheSize, expirationPeriodNano, matchHosts);
}
return exports;
@ -140,7 +142,7 @@ public long getExpirationTime() {
accessCache = new LightWeightCache<AccessCacheEntry, AccessCacheEntry>(
cacheSize, cacheSize, expirationPeriodNano, 0);
String[] matchStrings = matchHosts.split(
Nfs3Constant.EXPORTS_ALLOWED_HOSTS_SEPARATOR);
CommonConfigurationKeys.NFS_EXPORTS_ALLOWED_HOSTS_SEPARATOR);
mMatches = new ArrayList<Match>(matchStrings.length);
for(String mStr : matchStrings) {
if (LOG.isDebugEnabled()) {

25
hadoop-common-project/hadoop-nfs/src/main/java/org/apache/hadoop/nfs/nfs3/IdUserGroup.java
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@ -50,9 +50,6 @@ public class IdUserGroup {
static final String MAC_GET_ALL_USERS_CMD = "dscl . -list /Users UniqueID";
static final String MAC_GET_ALL_GROUPS_CMD = "dscl . -list /Groups PrimaryGroupID";
// Used for finding the configured static mapping file.
static final String NFS_STATIC_MAPPING_FILE_KEY = "dfs.nfs.static.mapping.file";
private static final String NFS_STATIC_MAPPING_FILE_DEFAULT = "/etc/nfs.map";
private final File staticMappingFile;
// Used for parsing the static mapping file.
@ -61,11 +58,7 @@ public class IdUserGroup {
private static final Pattern MAPPING_LINE =
Pattern.compile("^(uid|gid)\\s+(\\d+)\\s+(\\d+)\\s*(#.*)?$");
// Do update every 15 minutes by default
final static long TIMEOUT_DEFAULT = 15 * 60 * 1000; // ms
final static long TIMEOUT_MIN = 1 * 60 * 1000; // ms
final private long timeout;
final static String NFS_USERUPDATE_MILLY = "hadoop.nfs.userupdate.milly";
// Maps for id to name map. Guarded by this object monitor lock
private BiMap<Integer, String> uidNameMap = HashBiMap.create();
@ -73,25 +66,21 @@ public class IdUserGroup {
private long lastUpdateTime = 0; // Last time maps were updated
public IdUserGroup() throws IOException {
timeout = TIMEOUT_DEFAULT;
staticMappingFile = new File(NFS_STATIC_MAPPING_FILE_DEFAULT);
updateMaps();
}
public IdUserGroup(Configuration conf) throws IOException {
long updateTime = conf.getLong(NFS_USERUPDATE_MILLY, TIMEOUT_DEFAULT);
long updateTime = conf.getLong(
Nfs3Constant.NFS_USERGROUP_UPDATE_MILLIS_KEY,
Nfs3Constant.NFS_USERGROUP_UPDATE_MILLIS_DEFAULT);
// Minimal interval is 1 minute
if (updateTime < TIMEOUT_MIN) {
if (updateTime < Nfs3Constant.NFS_USERGROUP_UPDATE_MILLIS_MIN) {
LOG.info("User configured user account update time is less"
+ " than 1 minute. Use 1 minute instead.");
timeout = TIMEOUT_MIN;
timeout = Nfs3Constant.NFS_USERGROUP_UPDATE_MILLIS_MIN;
} else {
timeout = updateTime;
}
String staticFilePath = conf.get(NFS_STATIC_MAPPING_FILE_KEY,
NFS_STATIC_MAPPING_FILE_DEFAULT);
String staticFilePath = conf.get(Nfs3Constant.NFS_STATIC_MAPPING_FILE_KEY,
Nfs3Constant.NFS_STATIC_MAPPING_FILE_DEFAULT);
staticMappingFile = new File(staticFilePath);
updateMaps();

7
hadoop-common-project/hadoop-nfs/src/main/java/org/apache/hadoop/nfs/nfs3/Nfs3Base.java
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@ -33,7 +33,6 @@
public abstract class Nfs3Base {
public static final Log LOG = LogFactory.getLog(Nfs3Base.class);
private final RpcProgram rpcProgram;
private final int nfsPort;
private int nfsBoundPort; // Will set after server starts
public RpcProgram getRpcProgram() {
@ -42,9 +41,7 @@ public RpcProgram getRpcProgram() {
protected Nfs3Base(RpcProgram rpcProgram, Configuration conf) {
this.rpcProgram = rpcProgram;
this.nfsPort = conf.getInt(Nfs3Constant.NFS3_SERVER_PORT,
Nfs3Constant.NFS3_SERVER_PORT_DEFAULT);
LOG.info("NFS server port set to: " + nfsPort);
LOG.info("NFS server port set to: " + rpcProgram.getPort());
}
public void start(boolean register) {
@ -58,7 +55,7 @@ public void start(boolean register) {
}
private void startTCPServer() {
SimpleTcpServer tcpServer = new SimpleTcpServer(nfsPort,
SimpleTcpServer tcpServer = new SimpleTcpServer(rpcProgram.getPort(),
rpcProgram, 0);
rpcProgram.startDaemons();
tcpServer.run();

40
hadoop-common-project/hadoop-nfs/src/main/java/org/apache/hadoop/nfs/nfs3/Nfs3Constant.java
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@ -25,10 +25,6 @@ public class Nfs3Constant {
// The local rpcbind/portmapper port.
public final static int SUN_RPCBIND = 111;
// The IP port number for NFS.
public final static String NFS3_SERVER_PORT = "nfs3.server.port";
public final static int NFS3_SERVER_PORT_DEFAULT = 2049;
// The RPC program number for NFS.
public final static int PROGRAM = 100003;
@ -191,36 +187,22 @@ public static WriteStableHow fromValue(int id) {
public final static int CREATE_GUARDED = 1;
public final static int CREATE_EXCLUSIVE = 2;
public static final String EXPORTS_ALLOWED_HOSTS_SEPARATOR = ";";
/** Allowed hosts for nfs exports */
public static final String EXPORTS_ALLOWED_HOSTS_KEY = "dfs.nfs.exports.allowed.hosts";
public static final String EXPORTS_ALLOWED_HOSTS_KEY_DEFAULT = "* rw";
/** Size for nfs exports cache */
public static final String EXPORTS_CACHE_SIZE_KEY = "dfs.nfs.exports.cache.size";
public static final int EXPORTS_CACHE_SIZE_DEFAULT = 512;
public static final String NFS_EXPORTS_CACHE_SIZE_KEY = "nfs.exports.cache.size";
public static final int NFS_EXPORTS_CACHE_SIZE_DEFAULT = 512;
/** Expiration time for nfs exports cache entry */
public static final String EXPORTS_CACHE_EXPIRYTIME_MILLIS_KEY = "dfs.nfs.exports.cache.expirytime.millis";
public static final long EXPORTS_CACHE_EXPIRYTIME_MILLIS_DEFAULT = 15 * 60 * 1000; // 15 min
public static final String NFS_EXPORTS_CACHE_EXPIRYTIME_MILLIS_KEY = "nfs.exports.cache.expirytime.millis";
public static final long NFS_EXPORTS_CACHE_EXPIRYTIME_MILLIS_DEFAULT = 15 * 60 * 1000; // 15 min
public static final String FILE_DUMP_DIR_KEY = "dfs.nfs3.dump.dir";
public static final String FILE_DUMP_DIR_DEFAULT = "/tmp/.hdfs-nfs";
public static final String ENABLE_FILE_DUMP_KEY = "dfs.nfs3.enableDump";
public static final boolean ENABLE_FILE_DUMP_DEFAULT = true;
public static final String MAX_READ_TRANSFER_SIZE_KEY = "dfs.nfs.rtmax";
public static final int MAX_READ_TRANSFER_SIZE_DEFAULT = 1024 * 1024;
public static final String MAX_WRITE_TRANSFER_SIZE_KEY = "dfs.nfs.wtmax";
public static final int MAX_WRITE_TRANSFER_SIZE_DEFAULT = 1024 * 1024;
public static final String MAX_READDIR_TRANSFER_SIZE_KEY = "dfs.nfs.dtmax";
public static final int MAX_READDIR_TRANSFER_SIZE_DEFAULT = 64 * 1024;
public static final String MAX_OPEN_FILES = "dfs.nfs3.max.open.files";
public static final int MAX_OPEN_FILES_DEFAULT = 256;
public static final String OUTPUT_STREAM_TIMEOUT = "dfs.nfs3.stream.timeout";
public static final long OUTPUT_STREAM_TIMEOUT_DEFAULT = 10 * 60 * 1000; // 10 minutes
public static final long OUTPUT_STREAM_TIMEOUT_MIN_DEFAULT = 10 * 1000; //10 seconds
/** Do user/group update every 15 minutes by default, minimum 1 minute */
public final static String NFS_USERGROUP_UPDATE_MILLIS_KEY = "nfs.usergroup.update.millis";
public final static long NFS_USERGROUP_UPDATE_MILLIS_DEFAULT = 15 * 60 * 1000; // ms
final static long NFS_USERGROUP_UPDATE_MILLIS_MIN = 1 * 60 * 1000; // ms
public final static String UNKNOWN_USER = "nobody";
public final static String UNKNOWN_GROUP = "nobody";
public final static String EXPORT_POINT = "dfs.nfs3.export.point";
public final static String EXPORT_POINT_DEFAULT = "/";
// Used for finding the configured static mapping file.
public static final String NFS_STATIC_MAPPING_FILE_KEY = "nfs.static.mapping.file";
public static final String NFS_STATIC_MAPPING_FILE_DEFAULT = "/etc/nfs.map";
}

9
hadoop-common-project/hadoop-nfs/src/test/java/org/apache/hadoop/nfs/TestNfsExports.java
View File

@ -17,11 +17,8 @@
*/
package org.apache.hadoop.nfs;
import org.junit.Assert;
import org.apache.hadoop.nfs.AccessPrivilege;
import org.apache.hadoop.nfs.NfsExports;
import org.apache.hadoop.nfs.nfs3.Nfs3Constant;
import org.junit.Assert;
import org.junit.Test;
public class TestNfsExports {
@ -32,9 +29,9 @@ public class TestNfsExports {
private final String hostname2 = "a.b.org";
private static final long ExpirationPeriod =
Nfs3Constant.EXPORTS_CACHE_EXPIRYTIME_MILLIS_DEFAULT * 1000 * 1000;
Nfs3Constant.NFS_EXPORTS_CACHE_EXPIRYTIME_MILLIS_DEFAULT * 1000 * 1000;
private static final int CacheSize = Nfs3Constant.EXPORTS_CACHE_SIZE_DEFAULT;
private static final int CacheSize = Nfs3Constant.NFS_EXPORTS_CACHE_SIZE_DEFAULT;
private static final long NanosPerMillis = 1000000;
@Test

16
hadoop-common-project/hadoop-nfs/src/test/java/org/apache/hadoop/nfs/nfs3/TestIdUserGroup.java
View File

@ -199,17 +199,19 @@ public void testIdOutOfIntegerRange() throws IOException {
@Test
public void testUserUpdateSetting() throws IOException {
IdUserGroup iug = new IdUserGroup();
assertEquals(iug.getTimeout(), IdUserGroup.TIMEOUT_DEFAULT);
IdUserGroup iug = new IdUserGroup(new Configuration());
assertEquals(iug.getTimeout(),
Nfs3Constant.NFS_USERGROUP_UPDATE_MILLIS_DEFAULT);
Configuration conf = new Configuration();
conf.setLong(IdUserGroup.NFS_USERUPDATE_MILLY, 0);
conf.setLong(Nfs3Constant.NFS_USERGROUP_UPDATE_MILLIS_KEY, 0);
iug = new IdUserGroup(conf);
assertEquals(iug.getTimeout(), IdUserGroup.TIMEOUT_MIN);
assertEquals(iug.getTimeout(), Nfs3Constant.NFS_USERGROUP_UPDATE_MILLIS_MIN);
conf.setLong(IdUserGroup.NFS_USERUPDATE_MILLY,
IdUserGroup.TIMEOUT_DEFAULT * 2);
conf.setLong(Nfs3Constant.NFS_USERGROUP_UPDATE_MILLIS_KEY,
Nfs3Constant.NFS_USERGROUP_UPDATE_MILLIS_DEFAULT * 2);
iug = new IdUserGroup(conf);
assertEquals(iug.getTimeout(), IdUserGroup.TIMEOUT_DEFAULT * 2);
assertEquals(iug.getTimeout(),
Nfs3Constant.NFS_USERGROUP_UPDATE_MILLIS_DEFAULT * 2);
}
}

57
hadoop-hdfs-project/hadoop-hdfs-nfs/src/main/java/org/apache/hadoop/hdfs/nfs/conf/NfsConfigKeys.java Normal file
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@ -0,0 +1,57 @@
/**
* 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
*
* 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 org.apache.hadoop.hdfs.nfs.conf;
public class NfsConfigKeys {
// The IP port number for NFS and mountd.
public final static String DFS_NFS_SERVER_PORT_KEY = "nfs.server.port";
public final static int DFS_NFS_SERVER_PORT_DEFAULT = 2049;
public final static String DFS_NFS_MOUNTD_PORT_KEY = "nfs.mountd.port";
public final static int DFS_NFS_MOUNTD_PORT_DEFAULT = 4242;
public static final String DFS_NFS_FILE_DUMP_KEY = "nfs.file.dump";
public static final boolean DFS_NFS_FILE_DUMP_DEFAULT = true;
public static final String DFS_NFS_FILE_DUMP_DIR_KEY = "nfs.file.dump.dir";
public static final String DFS_NFS_FILE_DUMP_DIR_DEFAULT = "/tmp/.hdfs-nfs";
public static final String DFS_NFS_MAX_READ_TRANSFER_SIZE_KEY = "nfs.rtmax";
public static final int DFS_NFS_MAX_READ_TRANSFER_SIZE_DEFAULT = 1024 * 1024;
public static final String DFS_NFS_MAX_WRITE_TRANSFER_SIZE_KEY = "nfs.wtmax";
public static final int DFS_NFS_MAX_WRITE_TRANSFER_SIZE_DEFAULT = 1024 * 1024;
public static final String DFS_NFS_MAX_READDIR_TRANSFER_SIZE_KEY = "nfs.dtmax";
public static final int DFS_NFS_MAX_READDIR_TRANSFER_SIZE_DEFAULT = 64 * 1024;
public static final String DFS_NFS_MAX_OPEN_FILES_KEY = "nfs.max.open.files";
public static final int DFS_NFS_MAX_OPEN_FILES_DEFAULT = 256;
public static final String DFS_NFS_STREAM_TIMEOUT_KEY = "nfs.stream.timeout";
public static final long DFS_NFS_STREAM_TIMEOUT_DEFAULT = 10 * 60 * 1000; // 10 minutes
public static final long DFS_NFS_STREAM_TIMEOUT_MIN_DEFAULT = 10 * 1000; // 10 seconds
public final static String DFS_NFS_EXPORT_POINT_KEY = "nfs.export.point";
public final static String DFS_NFS_EXPORT_POINT_DEFAULT = "/";
public static final String DFS_NFS_KEYTAB_FILE_KEY = "nfs.keytab.file";
public static final String DFS_NFS_KERBEROS_PRINCIPAL_KEY = "nfs.kerberos.principal";
public static final String DFS_NFS_REGISTRATION_PORT_KEY = "nfs.registration.port";
public static final int DFS_NFS_REGISTRATION_PORT_DEFAULT = 40; // Currently unassigned.
public static final String DFS_NFS_ALLOW_INSECURE_PORTS_KEY = "nfs.allow.insecure.ports";
public static final boolean DFS_NFS_ALLOW_INSECURE_PORTS_DEFAULT = true;
}

54
hadoop-hdfs-project/hadoop-hdfs-nfs/src/main/java/org/apache/hadoop/hdfs/nfs/conf/NfsConfiguration.java Normal file
View File

@ -0,0 +1,54 @@
/**
* 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
*
* 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 org.apache.hadoop.hdfs.nfs.conf;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.hdfs.HdfsConfiguration;
import org.apache.hadoop.nfs.nfs3.Nfs3Constant;
/**
* Adds deprecated keys into the configuration.
*/
public class NfsConfiguration extends HdfsConfiguration {
static {
addDeprecatedKeys();
}
private static void addDeprecatedKeys() {
Configuration.addDeprecations(new DeprecationDelta[] {
new DeprecationDelta("nfs3.server.port",
NfsConfigKeys.DFS_NFS_SERVER_PORT_KEY),
new DeprecationDelta("nfs3.mountd.port",
NfsConfigKeys.DFS_NFS_MOUNTD_PORT_KEY),
new DeprecationDelta("dfs.nfs.exports.cache.expirytime.millis",
Nfs3Constant.NFS_EXPORTS_CACHE_EXPIRYTIME_MILLIS_KEY),
new DeprecationDelta("hadoop.nfs.userupdate.milly",
Nfs3Constant.NFS_USERGROUP_UPDATE_MILLIS_KEY),
new DeprecationDelta("dfs.nfs3.enableDump",
NfsConfigKeys.DFS_NFS_FILE_DUMP_KEY),
new DeprecationDelta("dfs.nfs3.dump.dir",
NfsConfigKeys.DFS_NFS_FILE_DUMP_DIR_KEY),
new DeprecationDelta("dfs.nfs3.max.open.files",
NfsConfigKeys.DFS_NFS_MAX_OPEN_FILES_KEY),
new DeprecationDelta("dfs.nfs3.stream.timeout",
NfsConfigKeys.DFS_NFS_STREAM_TIMEOUT_KEY),
new DeprecationDelta("dfs.nfs3.export.point",
NfsConfigKeys.DFS_NFS_EXPORT_POINT_KEY) });
}
}

6
hadoop-hdfs-project/hadoop-hdfs-nfs/src/main/java/org/apache/hadoop/hdfs/nfs/mount/Mountd.java
View File

@ -20,7 +20,7 @@
import java.io.IOException;
import java.net.DatagramSocket;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.hdfs.nfs.conf.NfsConfiguration;
import org.apache.hadoop.mount.MountdBase;
/**
@ -32,13 +32,13 @@
*/
public class Mountd extends MountdBase {
public Mountd(Configuration config, DatagramSocket registrationSocket,
public Mountd(NfsConfiguration config, DatagramSocket registrationSocket,
boolean allowInsecurePorts) throws IOException {
super(new RpcProgramMountd(config, registrationSocket, allowInsecurePorts));
}
public static void main(String[] args) throws IOException {
Configuration config = new Configuration();
NfsConfiguration config = new NfsConfiguration();
Mountd mountd = new Mountd(config, null, true);
mountd.start(true);
}

28
hadoop-hdfs-project/hadoop-hdfs-nfs/src/main/java/org/apache/hadoop/hdfs/nfs/mount/RpcProgramMountd.java
View File

@ -16,9 +16,6 @@
* limitations under the License.
*/
package org.apache.hadoop.hdfs.nfs.mount;
import static org.apache.hadoop.hdfs.DFSConfigKeys.DFS_NFS_KEYTAB_FILE_KEY;
import static org.apache.hadoop.hdfs.DFSConfigKeys.DFS_NFS_KERBEROS_PRINCIPAL_KEY;
import java.io.IOException;
import java.net.DatagramSocket;
import java.net.InetAddress;
@ -29,8 +26,9 @@
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.hdfs.DFSClient;
import org.apache.hadoop.hdfs.nfs.conf.NfsConfigKeys;
import org.apache.hadoop.hdfs.nfs.conf.NfsConfiguration;
import org.apache.hadoop.hdfs.protocol.HdfsFileStatus;
import org.apache.hadoop.hdfs.server.namenode.NameNode;
import org.apache.hadoop.mount.MountEntry;
@ -39,7 +37,6 @@
import org.apache.hadoop.nfs.AccessPrivilege;
import org.apache.hadoop.nfs.NfsExports;
import org.apache.hadoop.nfs.nfs3.FileHandle;
import org.apache.hadoop.nfs.nfs3.Nfs3Constant;
import org.apache.hadoop.nfs.nfs3.Nfs3Status;
import org.apache.hadoop.oncrpc.RpcAcceptedReply;
import org.apache.hadoop.oncrpc.RpcCall;
@ -66,9 +63,7 @@ public class RpcProgramMountd extends RpcProgram implements MountInterface {
public static final int VERSION_1 = 1;
public static final int VERSION_2 = 2;
public static final int VERSION_3 = 3;
public static final int PORT = 4242;
// Need DFSClient for branch-1 to get ExtendedHdfsFileStatus
private final DFSClient dfsClient;
/** Synchronized list */
@ -79,19 +74,22 @@ public class RpcProgramMountd extends RpcProgram implements MountInterface {
private final NfsExports hostsMatcher;
public RpcProgramMountd(Configuration config, DatagramSocket registrationSocket,
boolean allowInsecurePorts) throws IOException {
public RpcProgramMountd(NfsConfiguration config,
DatagramSocket registrationSocket, boolean allowInsecurePorts)
throws IOException {
// Note that RPC cache is not enabled
super("mountd", "localhost", config.getInt("nfs3.mountd.port", PORT),
PROGRAM, VERSION_1, VERSION_3, registrationSocket, allowInsecurePorts);
super("mountd", "localhost", config.getInt(
NfsConfigKeys.DFS_NFS_MOUNTD_PORT_KEY,
NfsConfigKeys.DFS_NFS_MOUNTD_PORT_DEFAULT), PROGRAM, VERSION_1,
VERSION_3, registrationSocket, allowInsecurePorts);
exports = new ArrayList<String>();
exports.add(config.get(Nfs3Constant.EXPORT_POINT,
Nfs3Constant.EXPORT_POINT_DEFAULT));
exports.add(config.get(NfsConfigKeys.DFS_NFS_EXPORT_POINT_KEY,
NfsConfigKeys.DFS_NFS_EXPORT_POINT_DEFAULT));
this.hostsMatcher = NfsExports.getInstance(config);
this.mounts = Collections.synchronizedList(new ArrayList<MountEntry>());
UserGroupInformation.setConfiguration(config);
SecurityUtil.login(config, DFS_NFS_KEYTAB_FILE_KEY,
DFS_NFS_KERBEROS_PRINCIPAL_KEY);
SecurityUtil.login(config, NfsConfigKeys.DFS_NFS_KEYTAB_FILE_KEY,
NfsConfigKeys.DFS_NFS_KERBEROS_PRINCIPAL_KEY);
this.dfsClient = new DFSClient(NameNode.getAddress(config), config);
}

8
hadoop-hdfs-project/hadoop-hdfs-nfs/src/main/java/org/apache/hadoop/hdfs/nfs/nfs3/DFSClientCache.java
View File

@ -30,10 +30,10 @@
import com.google.common.base.Preconditions;
import org.apache.commons.logging.Log;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.fs.FSDataInputStream;
import org.apache.hadoop.hdfs.DFSClient;
import org.apache.hadoop.hdfs.DFSInputStream;
import org.apache.hadoop.hdfs.nfs.conf.NfsConfiguration;
import org.apache.hadoop.hdfs.server.namenode.NameNode;
import org.apache.hadoop.io.MultipleIOException;
import org.apache.hadoop.security.UserGroupInformation;
@ -72,7 +72,7 @@ class DFSClientCache {
final static int DEFAULT_DFS_INPUTSTREAM_CACHE_SIZE = 1024;
final static int DEFAULT_DFS_INPUTSTREAM_CACHE_TTL = 10 * 60;
private final Configuration config;
private final NfsConfiguration config;
private static class DFSInputStreamCaheKey {
final String userId;
@ -99,11 +99,11 @@ public int hashCode() {
}
}
DFSClientCache(Configuration config) {
DFSClientCache(NfsConfiguration config) {
this(config, DEFAULT_DFS_CLIENT_CACHE_SIZE);
}
DFSClientCache(Configuration config, int clientCache) {
DFSClientCache(NfsConfiguration config, int clientCache) {
this.config = config;
this.clientCache = CacheBuilder.newBuilder()
.maximumSize(clientCache)

21
hadoop-hdfs-project/hadoop-hdfs-nfs/src/main/java/org/apache/hadoop/hdfs/nfs/nfs3/Nfs3.java
View File

@ -20,8 +20,8 @@
import java.io.IOException;
import java.net.DatagramSocket;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.hdfs.DFSConfigKeys;
import org.apache.hadoop.hdfs.nfs.conf.NfsConfigKeys;
import org.apache.hadoop.hdfs.nfs.conf.NfsConfiguration;
import org.apache.hadoop.hdfs.nfs.mount.Mountd;
import org.apache.hadoop.nfs.nfs3.Nfs3Base;
import org.apache.hadoop.util.StringUtils;
@ -36,16 +36,11 @@
public class Nfs3 extends Nfs3Base {
private Mountd mountd;
static {
Configuration.addDefaultResource("hdfs-default.xml");
Configuration.addDefaultResource("hdfs-site.xml");
}
public Nfs3(Configuration conf) throws IOException {
public Nfs3(NfsConfiguration conf) throws IOException {
this(conf, null, true);
}
public Nfs3(Configuration conf, DatagramSocket registrationSocket,
public Nfs3(NfsConfiguration conf, DatagramSocket registrationSocket,
boolean allowInsecurePorts) throws IOException {
super(new RpcProgramNfs3(conf, registrationSocket, allowInsecurePorts), conf);
mountd = new Mountd(conf, registrationSocket, allowInsecurePorts);
@ -64,11 +59,11 @@ public void startServiceInternal(boolean register) throws IOException {
static void startService(String[] args,
DatagramSocket registrationSocket) throws IOException {
StringUtils.startupShutdownMessage(Nfs3.class, args, LOG);
Configuration conf = new Configuration();
NfsConfiguration conf = new NfsConfiguration();
boolean allowInsecurePorts = conf.getBoolean(
DFSConfigKeys.DFS_NFS_ALLOW_INSECURE_PORTS_KEY,
DFSConfigKeys.DFS_NFS_ALLOW_INSECURE_PORTS_DEFAULT);
final Nfs3 nfsServer = new Nfs3(new Configuration(), registrationSocket,
NfsConfigKeys.DFS_NFS_ALLOW_INSECURE_PORTS_KEY,
NfsConfigKeys.DFS_NFS_ALLOW_INSECURE_PORTS_DEFAULT);
final Nfs3 nfsServer = new Nfs3(conf, registrationSocket,
allowInsecurePorts);
nfsServer.startServiceInternal(true);
}

3
hadoop-hdfs-project/hadoop-hdfs-nfs/src/main/java/org/apache/hadoop/hdfs/nfs/nfs3/OpenFileCtx.java
View File

@ -37,6 +37,7 @@
import org.apache.hadoop.hdfs.DFSClient;
import org.apache.hadoop.hdfs.client.HdfsDataOutputStream;
import org.apache.hadoop.hdfs.client.HdfsDataOutputStream.SyncFlag;
import org.apache.hadoop.hdfs.nfs.conf.NfsConfigKeys;
import org.apache.hadoop.hdfs.nfs.nfs3.WriteCtx.DataState;
import org.apache.hadoop.io.BytesWritable.Comparator;
import org.apache.hadoop.io.IOUtils;
@ -823,7 +824,7 @@ private void addWrite(WriteCtx writeCtx) {
*/
public synchronized boolean streamCleanup(long fileId, long streamTimeout) {
Preconditions
.checkState(streamTimeout >= Nfs3Constant.OUTPUT_STREAM_TIMEOUT_MIN_DEFAULT);
.checkState(streamTimeout >= NfsConfigKeys.DFS_NFS_STREAM_TIMEOUT_MIN_DEFAULT);
if (!activeState) {
return true;
}

12
hadoop-hdfs-project/hadoop-hdfs-nfs/src/main/java/org/apache/hadoop/hdfs/nfs/nfs3/OpenFileCtxCache.java
View File

@ -24,9 +24,9 @@
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.hdfs.nfs.conf.NfsConfigKeys;
import org.apache.hadoop.hdfs.nfs.conf.NfsConfiguration;
import org.apache.hadoop.nfs.nfs3.FileHandle;
import org.apache.hadoop.nfs.nfs3.Nfs3Constant;
import org.apache.hadoop.util.Daemon;
import org.apache.hadoop.util.Time;
@ -48,9 +48,9 @@ class OpenFileCtxCache {
private final long streamTimeout;
private final StreamMonitor streamMonitor;
OpenFileCtxCache(Configuration config, long streamTimeout) {
maxStreams = config.getInt(Nfs3Constant.MAX_OPEN_FILES,
Nfs3Constant.MAX_OPEN_FILES_DEFAULT);
OpenFileCtxCache(NfsConfiguration config, long streamTimeout) {
maxStreams = config.getInt(NfsConfigKeys.DFS_NFS_MAX_OPEN_FILES_KEY,
NfsConfigKeys.DFS_NFS_MAX_OPEN_FILES_DEFAULT);
LOG.info("Maximum open streams is " + maxStreams);
this.streamTimeout = streamTimeout;
streamMonitor = new StreamMonitor();
@ -102,7 +102,7 @@ Entry<FileHandle, OpenFileCtx> getEntryToEvict() {
} else {
long idleTime = Time.monotonicNow()
- idlest.getValue().getLastAccessTime();
if (idleTime < Nfs3Constant.OUTPUT_STREAM_TIMEOUT_MIN_DEFAULT) {
if (idleTime < NfsConfigKeys.DFS_NFS_STREAM_TIMEOUT_MIN_DEFAULT) {
if (LOG.isDebugEnabled()) {
LOG.debug("idlest stream's idle time:" + idleTime);
}

13
hadoop-hdfs-project/hadoop-hdfs-nfs/src/main/java/org/apache/hadoop/hdfs/nfs/nfs3/PrivilegedNfsGatewayStarter.java
View File

@ -21,9 +21,8 @@
import org.apache.commons.daemon.Daemon;
import org.apache.commons.daemon.DaemonContext;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.hdfs.DFSConfigKeys;
import org.apache.hadoop.hdfs.HdfsConfiguration;
import org.apache.hadoop.hdfs.nfs.conf.NfsConfigKeys;
import org.apache.hadoop.hdfs.nfs.conf.NfsConfiguration;
/**
* This class is used to allow the initial registration of the NFS gateway with
@ -42,12 +41,12 @@ public class PrivilegedNfsGatewayStarter implements Daemon {
@Override
public void init(DaemonContext context) throws Exception {
System.err.println("Initializing privileged NFS client socket...");
Configuration conf = new HdfsConfiguration();
int clientPort = conf.getInt(DFSConfigKeys.DFS_NFS_REGISTRATION_PORT_KEY,
DFSConfigKeys.DFS_NFS_REGISTRATION_PORT_DEFAULT);
NfsConfiguration conf = new NfsConfiguration();
int clientPort = conf.getInt(NfsConfigKeys.DFS_NFS_REGISTRATION_PORT_KEY,
NfsConfigKeys.DFS_NFS_REGISTRATION_PORT_DEFAULT);
if (clientPort < 1 || clientPort > 1023) {
throw new RuntimeException("Must start privileged NFS server with '" +
DFSConfigKeys.DFS_NFS_REGISTRATION_PORT_KEY + "' configured to a " +
NfsConfigKeys.DFS_NFS_REGISTRATION_PORT_KEY + "' configured to a " +
"privileged port.");
}
registrationSocket = new DatagramSocket(

53
hadoop-hdfs-project/hadoop-hdfs-nfs/src/main/java/org/apache/hadoop/hdfs/nfs/nfs3/RpcProgramNfs3.java
View File

@ -28,7 +28,6 @@
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.fs.CommonConfigurationKeysPublic;
import org.apache.hadoop.fs.CreateFlag;
import org.apache.hadoop.fs.DirectoryListingStartAfterNotFoundException;
@ -41,6 +40,8 @@
import org.apache.hadoop.hdfs.DFSClient;
import org.apache.hadoop.hdfs.DFSConfigKeys;
import org.apache.hadoop.hdfs.client.HdfsDataOutputStream;
import org.apache.hadoop.hdfs.nfs.conf.NfsConfigKeys;
import org.apache.hadoop.hdfs.nfs.conf.NfsConfiguration;
import org.apache.hadoop.hdfs.protocol.DirectoryListing;
import org.apache.hadoop.hdfs.protocol.HdfsConstants;
import org.apache.hadoop.hdfs.protocol.HdfsFileStatus;
@ -131,9 +132,6 @@
import com.google.common.annotations.VisibleForTesting;
import static org.apache.hadoop.hdfs.DFSConfigKeys.DFS_NFS_KEYTAB_FILE_KEY;
import static org.apache.hadoop.hdfs.DFSConfigKeys.DFS_NFS_KERBEROS_PRINCIPAL_KEY;
/**
* RPC program corresponding to nfs daemon. See {@link Nfs3}.
*/
@ -144,7 +142,7 @@ public class RpcProgramNfs3 extends RpcProgram implements Nfs3Interface {
static final Log LOG = LogFactory.getLog(RpcProgramNfs3.class);
private final Configuration config = new Configuration();
private final NfsConfiguration config;
private final WriteManager writeManager;
private final IdUserGroup iug;
private final DFSClientCache clientCache;
@ -159,15 +157,17 @@ public class RpcProgramNfs3 extends RpcProgram implements Nfs3Interface {
private final RpcCallCache rpcCallCache;
public RpcProgramNfs3(Configuration config, DatagramSocket registrationSocket,
public RpcProgramNfs3(NfsConfiguration config, DatagramSocket registrationSocket,
boolean allowInsecurePorts) throws IOException {
super("NFS3", "localhost", config.getInt(Nfs3Constant.NFS3_SERVER_PORT,
Nfs3Constant.NFS3_SERVER_PORT_DEFAULT), Nfs3Constant.PROGRAM,
super("NFS3", "localhost", config.getInt(
NfsConfigKeys.DFS_NFS_SERVER_PORT_KEY,
NfsConfigKeys.DFS_NFS_SERVER_PORT_DEFAULT), Nfs3Constant.PROGRAM,
Nfs3Constant.VERSION, Nfs3Constant.VERSION, registrationSocket,
allowInsecurePorts);
this.config = config;
config.set(FsPermission.UMASK_LABEL, "000");
iug = new IdUserGroup();
iug = new IdUserGroup(config);
exports = NfsExports.getInstance(config);
writeManager = new WriteManager(iug, config);
@ -180,13 +180,13 @@ public RpcProgramNfs3(Configuration config, DatagramSocket registrationSocket,
CommonConfigurationKeysPublic.IO_FILE_BUFFER_SIZE_KEY,
CommonConfigurationKeysPublic.IO_FILE_BUFFER_SIZE_DEFAULT);
writeDumpDir = config.get(Nfs3Constant.FILE_DUMP_DIR_KEY,
Nfs3Constant.FILE_DUMP_DIR_DEFAULT);
boolean enableDump = config.getBoolean(Nfs3Constant.ENABLE_FILE_DUMP_KEY,
Nfs3Constant.ENABLE_FILE_DUMP_DEFAULT);
writeDumpDir = config.get(NfsConfigKeys.DFS_NFS_FILE_DUMP_DIR_KEY,
NfsConfigKeys.DFS_NFS_FILE_DUMP_DIR_DEFAULT);
boolean enableDump = config.getBoolean(NfsConfigKeys.DFS_NFS_FILE_DUMP_KEY,
NfsConfigKeys.DFS_NFS_FILE_DUMP_DEFAULT);
UserGroupInformation.setConfiguration(config);
SecurityUtil.login(config, DFS_NFS_KEYTAB_FILE_KEY,
DFS_NFS_KERBEROS_PRINCIPAL_KEY);
SecurityUtil.login(config, NfsConfigKeys.DFS_NFS_KEYTAB_FILE_KEY,
NfsConfigKeys.DFS_NFS_KERBEROS_PRINCIPAL_KEY);
if (!enableDump) {
writeDumpDir = null;
@ -567,8 +567,8 @@ public READLINK3Response readlink(XDR xdr, SecurityHandler securityHandler,
+ handle.getFileId());
return new READLINK3Response(Nfs3Status.NFS3ERR_SERVERFAULT);
}
int rtmax = config.getInt(Nfs3Constant.MAX_READ_TRANSFER_SIZE_KEY,
Nfs3Constant.MAX_READ_TRANSFER_SIZE_DEFAULT);
int rtmax = config.getInt(NfsConfigKeys.DFS_NFS_MAX_READ_TRANSFER_SIZE_KEY,
NfsConfigKeys.DFS_NFS_MAX_READ_TRANSFER_SIZE_DEFAULT);
if (rtmax < target.getBytes().length) {
LOG.error("Link size: " + target.getBytes().length
+ " is larger than max transfer size: " + rtmax);
@ -665,8 +665,8 @@ public READ3Response read(XDR xdr, SecurityHandler securityHandler,
}
try {
int rtmax = config.getInt(Nfs3Constant.MAX_READ_TRANSFER_SIZE_KEY,
Nfs3Constant.MAX_READ_TRANSFER_SIZE_DEFAULT);
int rtmax = config.getInt(NfsConfigKeys.DFS_NFS_MAX_READ_TRANSFER_SIZE_KEY,
NfsConfigKeys.DFS_NFS_MAX_READ_TRANSFER_SIZE_DEFAULT);
int buffSize = Math.min(rtmax, count);
byte[] readbuffer = new byte[buffSize];
@ -1740,12 +1740,15 @@ public FSINFO3Response fsinfo(XDR xdr, SecurityHandler securityHandler,
}
try {
int rtmax = config.getInt(Nfs3Constant.MAX_READ_TRANSFER_SIZE_KEY,
Nfs3Constant.MAX_READ_TRANSFER_SIZE_DEFAULT);
int wtmax = config.getInt(Nfs3Constant.MAX_WRITE_TRANSFER_SIZE_KEY,
Nfs3Constant.MAX_WRITE_TRANSFER_SIZE_DEFAULT);
int dtperf = config.getInt(Nfs3Constant.MAX_READDIR_TRANSFER_SIZE_KEY,
Nfs3Constant.MAX_READDIR_TRANSFER_SIZE_DEFAULT);
int rtmax = config.getInt(
NfsConfigKeys.DFS_NFS_MAX_READ_TRANSFER_SIZE_KEY,
NfsConfigKeys.DFS_NFS_MAX_READ_TRANSFER_SIZE_DEFAULT);
int wtmax = config.getInt(
NfsConfigKeys.DFS_NFS_MAX_WRITE_TRANSFER_SIZE_KEY,
NfsConfigKeys.DFS_NFS_MAX_WRITE_TRANSFER_SIZE_DEFAULT);
int dtperf = config.getInt(
NfsConfigKeys.DFS_NFS_MAX_READDIR_TRANSFER_SIZE_KEY,
NfsConfigKeys.DFS_NFS_MAX_READDIR_TRANSFER_SIZE_DEFAULT);
Nfs3FileAttributes attrs = Nfs3Utils.getFileAttr(dfsClient,
Nfs3Utils.getFileIdPath(handle), iug);

25
hadoop-hdfs-project/hadoop-hdfs-nfs/src/main/java/org/apache/hadoop/hdfs/nfs/nfs3/WriteManager.java
View File

@ -21,10 +21,11 @@
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.fs.CommonConfigurationKeysPublic;
import org.apache.hadoop.hdfs.DFSClient;
import org.apache.hadoop.hdfs.client.HdfsDataOutputStream;
import org.apache.hadoop.hdfs.nfs.conf.NfsConfigKeys;
import org.apache.hadoop.hdfs.nfs.conf.NfsConfiguration;
import org.apache.hadoop.hdfs.nfs.nfs3.OpenFileCtx.COMMIT_STATUS;
import org.apache.hadoop.hdfs.protocol.AlreadyBeingCreatedException;
import org.apache.hadoop.ipc.RemoteException;
@ -50,7 +51,7 @@
public class WriteManager {
public static final Log LOG = LogFactory.getLog(WriteManager.class);
private final Configuration config;
private final NfsConfiguration config;
private final IdUserGroup iug;
private AsyncDataService asyncDataService;
@ -78,19 +79,19 @@ boolean addOpenFileStream(FileHandle h, OpenFileCtx ctx) {
return fileContextCache.put(h, ctx);
}
WriteManager(IdUserGroup iug, final Configuration config) {
WriteManager(IdUserGroup iug, final NfsConfiguration config) {
this.iug = iug;
this.config = config;
streamTimeout = config.getLong(Nfs3Constant.OUTPUT_STREAM_TIMEOUT,
Nfs3Constant.OUTPUT_STREAM_TIMEOUT_DEFAULT);
streamTimeout = config.getLong(NfsConfigKeys.DFS_NFS_STREAM_TIMEOUT_KEY,
NfsConfigKeys.DFS_NFS_STREAM_TIMEOUT_DEFAULT);
LOG.info("Stream timeout is " + streamTimeout + "ms.");
if (streamTimeout < Nfs3Constant.OUTPUT_STREAM_TIMEOUT_MIN_DEFAULT) {
if (streamTimeout < NfsConfigKeys.DFS_NFS_STREAM_TIMEOUT_MIN_DEFAULT) {
LOG.info("Reset stream timeout to minimum value "
+ Nfs3Constant.OUTPUT_STREAM_TIMEOUT_MIN_DEFAULT + "ms.");
streamTimeout = Nfs3Constant.OUTPUT_STREAM_TIMEOUT_MIN_DEFAULT;
+ NfsConfigKeys.DFS_NFS_STREAM_TIMEOUT_MIN_DEFAULT + "ms.");
streamTimeout = NfsConfigKeys.DFS_NFS_STREAM_TIMEOUT_MIN_DEFAULT;
}
maxStreams = config.getInt(Nfs3Constant.MAX_OPEN_FILES,
Nfs3Constant.MAX_OPEN_FILES_DEFAULT);
maxStreams = config.getInt(NfsConfigKeys.DFS_NFS_MAX_OPEN_FILES_KEY,
NfsConfigKeys.DFS_NFS_MAX_OPEN_FILES_DEFAULT);
LOG.info("Maximum open streams is "+ maxStreams);
this.fileContextCache = new OpenFileCtxCache(config, streamTimeout);
}
@ -171,8 +172,8 @@ void handleWrite(DFSClient dfsClient, WRITE3Request request, Channel channel,
}
// Add open stream
String writeDumpDir = config.get(Nfs3Constant.FILE_DUMP_DIR_KEY,
Nfs3Constant.FILE_DUMP_DIR_DEFAULT);
String writeDumpDir = config.get(NfsConfigKeys.DFS_NFS_FILE_DUMP_DIR_KEY,
NfsConfigKeys.DFS_NFS_FILE_DUMP_DIR_DEFAULT);
openFileCtx = new OpenFileCtx(fos, latestAttr, writeDumpDir + "/"
+ fileHandle.getFileId(), dfsClient, iug);

4
hadoop-hdfs-project/hadoop-hdfs-nfs/src/test/java/org/apache/hadoop/hdfs/nfs/TestMountd.java
View File

@ -23,8 +23,8 @@
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.hdfs.MiniDFSCluster;
import org.apache.hadoop.hdfs.nfs.conf.NfsConfiguration;
import org.apache.hadoop.hdfs.nfs.mount.RpcProgramMountd;
import org.apache.hadoop.hdfs.nfs.nfs3.Nfs3;
import org.apache.hadoop.hdfs.nfs.nfs3.RpcProgramNfs3;
@ -38,7 +38,7 @@ public class TestMountd {
@Test
public void testStart() throws IOException {
// Start minicluster
Configuration config = new Configuration();
NfsConfiguration config = new NfsConfiguration();
MiniDFSCluster cluster = new MiniDFSCluster.Builder(config).numDataNodes(1)
.build();
cluster.waitActive();

9
hadoop-hdfs-project/hadoop-hdfs-nfs/src/test/java/org/apache/hadoop/hdfs/nfs/TestOutOfOrderWrite.java
View File

@ -23,7 +23,8 @@
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.hdfs.nfs.conf.NfsConfigKeys;
import org.apache.hadoop.hdfs.nfs.conf.NfsConfiguration;
import org.apache.hadoop.hdfs.nfs.nfs3.Nfs3Utils;
import org.apache.hadoop.nfs.nfs3.FileHandle;
import org.apache.hadoop.nfs.nfs3.Nfs3Constant;
@ -155,10 +156,10 @@ public static void main(String[] args) throws InterruptedException {
Arrays.fill(data3, (byte) 9);
// NFS3 Create request
Configuration conf = new Configuration();
NfsConfiguration conf = new NfsConfiguration();
WriteClient client = new WriteClient("localhost", conf.getInt(
Nfs3Constant.NFS3_SERVER_PORT, Nfs3Constant.NFS3_SERVER_PORT_DEFAULT),
create(), false);
NfsConfigKeys.DFS_NFS_SERVER_PORT_KEY,
NfsConfigKeys.DFS_NFS_SERVER_PORT_DEFAULT), create(), false);
client.run();
while (handle == null) {

4
hadoop-hdfs-project/hadoop-hdfs-nfs/src/test/java/org/apache/hadoop/hdfs/nfs/TestReaddir.java
View File

@ -24,11 +24,11 @@
import java.net.InetAddress;
import java.util.List;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.fs.Path;
import org.apache.hadoop.hdfs.DFSTestUtil;
import org.apache.hadoop.hdfs.DistributedFileSystem;
import org.apache.hadoop.hdfs.MiniDFSCluster;
import org.apache.hadoop.hdfs.nfs.conf.NfsConfiguration;
import org.apache.hadoop.hdfs.nfs.nfs3.Nfs3;
import org.apache.hadoop.hdfs.nfs.nfs3.RpcProgramNfs3;
import org.apache.hadoop.hdfs.protocol.HdfsFileStatus;
@ -53,7 +53,7 @@
*/
public class TestReaddir {
static Configuration config = new Configuration();
static NfsConfiguration config = new NfsConfiguration();
static MiniDFSCluster cluster = null;
static DistributedFileSystem hdfs;
static NameNode nn;

12
hadoop-hdfs-project/hadoop-hdfs-nfs/src/test/java/org/apache/hadoop/hdfs/nfs/nfs3/TestDFSClientCache.java
View File

@ -18,24 +18,24 @@
package org.apache.hadoop.hdfs.nfs.nfs3;
import static org.apache.hadoop.security.UserGroupInformation.AuthenticationMethod.KERBEROS;
import static org.hamcrest.core.Is.is;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertTrue;
import static org.junit.Assert.assertThat;
import static org.hamcrest.core.Is.is;
import static org.junit.Assert.assertTrue;
import java.io.IOException;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.fs.FileSystem;
import org.apache.hadoop.hdfs.DFSClient;
import org.apache.hadoop.hdfs.nfs.conf.NfsConfiguration;
import org.apache.hadoop.security.UserGroupInformation;
import org.junit.Test;
public class TestDFSClientCache {
@Test
public void testEviction() throws IOException {
Configuration conf = new Configuration();
NfsConfiguration conf = new NfsConfiguration();
conf.set(FileSystem.FS_DEFAULT_NAME_KEY, "hdfs://localhost");
// Only one entry will be in the cache
@ -59,7 +59,7 @@ public void testGetUserGroupInformationSecure() throws IOException {
String currentUser = "test-user";
Configuration conf = new Configuration();
NfsConfiguration conf = new NfsConfiguration();
UserGroupInformation currentUserUgi
= UserGroupInformation.createRemoteUser(currentUser);
currentUserUgi.setAuthenticationMethod(KERBEROS);
@ -83,7 +83,7 @@ public void testGetUserGroupInformation() throws IOException {
UserGroupInformation currentUserUgi = UserGroupInformation
.createUserForTesting(currentUser, new String[0]);
Configuration conf = new Configuration();
NfsConfiguration conf = new NfsConfiguration();
conf.set(FileSystem.FS_DEFAULT_NAME_KEY, "hdfs://localhost");
DFSClientCache cache = new DFSClientCache(conf);
UserGroupInformation ugiResult

8
hadoop-hdfs-project/hadoop-hdfs-nfs/src/test/java/org/apache/hadoop/hdfs/nfs/nfs3/TestExportsTable.java
View File

@ -21,22 +21,22 @@
import java.io.IOException;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.hdfs.MiniDFSCluster;
import org.apache.hadoop.hdfs.nfs.conf.NfsConfigKeys;
import org.apache.hadoop.hdfs.nfs.conf.NfsConfiguration;
import org.apache.hadoop.hdfs.nfs.mount.Mountd;
import org.apache.hadoop.hdfs.nfs.mount.RpcProgramMountd;
import org.apache.hadoop.nfs.nfs3.Nfs3Constant;
import org.junit.Test;
public class TestExportsTable {
@Test
public void testExportPoint() throws IOException {
Configuration config = new Configuration();
NfsConfiguration config = new NfsConfiguration();
MiniDFSCluster cluster = null;
String exportPoint = "/myexport1";
config.setStrings(Nfs3Constant.EXPORT_POINT, exportPoint);
config.setStrings(NfsConfigKeys.DFS_NFS_EXPORT_POINT_KEY, exportPoint);
// Use emphral port in case tests are running in parallel
config.setInt("nfs3.mountd.port", 0);
config.setInt("nfs3.server.port", 0);

40
hadoop-hdfs-project/hadoop-hdfs-nfs/src/test/java/org/apache/hadoop/hdfs/nfs/nfs3/TestOpenFileCtxCache.java
View File

@ -22,13 +22,13 @@
import java.io.IOException;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.hdfs.DFSClient;
import org.apache.hadoop.hdfs.client.HdfsDataOutputStream;
import org.apache.hadoop.hdfs.nfs.conf.NfsConfigKeys;
import org.apache.hadoop.hdfs.nfs.conf.NfsConfiguration;
import org.apache.hadoop.hdfs.nfs.nfs3.OpenFileCtx.CommitCtx;
import org.apache.hadoop.nfs.nfs3.FileHandle;
import org.apache.hadoop.nfs.nfs3.IdUserGroup;
import org.apache.hadoop.nfs.nfs3.Nfs3Constant;
import org.apache.hadoop.nfs.nfs3.Nfs3FileAttributes;
import org.junit.Test;
import org.mockito.Mockito;
@ -38,10 +38,10 @@ public class TestOpenFileCtxCache {
@Test
public void testEviction() throws IOException, InterruptedException {
Configuration conf = new Configuration();
NfsConfiguration conf = new NfsConfiguration();
// Only two entries will be in the cache
conf.setInt(Nfs3Constant.MAX_OPEN_FILES, 2);
conf.setInt(NfsConfigKeys.DFS_NFS_MAX_OPEN_FILES_KEY, 2);
DFSClient dfsClient = Mockito.mock(DFSClient.class);
Nfs3FileAttributes attr = new Nfs3FileAttributes();
@ -49,15 +49,15 @@ public void testEviction() throws IOException, InterruptedException {
Mockito.when(fos.getPos()).thenReturn((long) 0);
OpenFileCtx context1 = new OpenFileCtx(fos, attr, "/dumpFilePath",
dfsClient, new IdUserGroup());
dfsClient, new IdUserGroup(new NfsConfiguration()));
OpenFileCtx context2 = new OpenFileCtx(fos, attr, "/dumpFilePath",
dfsClient, new IdUserGroup());
dfsClient, new IdUserGroup(new NfsConfiguration()));
OpenFileCtx context3 = new OpenFileCtx(fos, attr, "/dumpFilePath",
dfsClient, new IdUserGroup());
dfsClient, new IdUserGroup(new NfsConfiguration()));
OpenFileCtx context4 = new OpenFileCtx(fos, attr, "/dumpFilePath",
dfsClient, new IdUserGroup());
dfsClient, new IdUserGroup(new NfsConfiguration()));
OpenFileCtx context5 = new OpenFileCtx(fos, attr, "/dumpFilePath",
dfsClient, new IdUserGroup());
dfsClient, new IdUserGroup(new NfsConfiguration()));
OpenFileCtxCache cache = new OpenFileCtxCache(conf, 10 * 60 * 100);
@ -71,7 +71,7 @@ public void testEviction() throws IOException, InterruptedException {
assertTrue(cache.size() == 2);
// Wait for the oldest stream to be evict-able, insert again
Thread.sleep(Nfs3Constant.OUTPUT_STREAM_TIMEOUT_MIN_DEFAULT);
Thread.sleep(NfsConfigKeys.DFS_NFS_STREAM_TIMEOUT_MIN_DEFAULT);
assertTrue(cache.size() == 2);
ret = cache.put(new FileHandle(3), context3);
@ -90,17 +90,17 @@ public void testEviction() throws IOException, InterruptedException {
new WriteCtx(null, 0, 0, 0, null, null, null, 0, false, null));
context4.getPendingCommitsForTest().put(new Long(100),
new CommitCtx(0, null, 0, attr));
Thread.sleep(Nfs3Constant.OUTPUT_STREAM_TIMEOUT_MIN_DEFAULT);
Thread.sleep(NfsConfigKeys.DFS_NFS_STREAM_TIMEOUT_MIN_DEFAULT);
ret = cache.put(new FileHandle(5), context5);
assertFalse(ret);
}
@Test
public void testScan() throws IOException, InterruptedException {
Configuration conf = new Configuration();
NfsConfiguration conf = new NfsConfiguration();
// Only two entries will be in the cache
conf.setInt(Nfs3Constant.MAX_OPEN_FILES, 2);
conf.setInt(NfsConfigKeys.DFS_NFS_MAX_OPEN_FILES_KEY, 2);
DFSClient dfsClient = Mockito.mock(DFSClient.class);
Nfs3FileAttributes attr = new Nfs3FileAttributes();
@ -108,13 +108,13 @@ public void testScan() throws IOException, InterruptedException {
Mockito.when(fos.getPos()).thenReturn((long) 0);
OpenFileCtx context1 = new OpenFileCtx(fos, attr, "/dumpFilePath",
dfsClient, new IdUserGroup());
dfsClient, new IdUserGroup(new NfsConfiguration()));
OpenFileCtx context2 = new OpenFileCtx(fos, attr, "/dumpFilePath",
dfsClient, new IdUserGroup());
dfsClient, new IdUserGroup(new NfsConfiguration()));
OpenFileCtx context3 = new OpenFileCtx(fos, attr, "/dumpFilePath",
dfsClient, new IdUserGroup());
dfsClient, new IdUserGroup(new NfsConfiguration()));
OpenFileCtx context4 = new OpenFileCtx(fos, attr, "/dumpFilePath",
dfsClient, new IdUserGroup());
dfsClient, new IdUserGroup(new NfsConfiguration()));
OpenFileCtxCache cache = new OpenFileCtxCache(conf, 10 * 60 * 100);
@ -123,8 +123,8 @@ public void testScan() throws IOException, InterruptedException {
assertTrue(ret);
ret = cache.put(new FileHandle(2), context2);
assertTrue(ret);
Thread.sleep(Nfs3Constant.OUTPUT_STREAM_TIMEOUT_MIN_DEFAULT + 1);
cache.scan(Nfs3Constant.OUTPUT_STREAM_TIMEOUT_MIN_DEFAULT);
Thread.sleep(NfsConfigKeys.DFS_NFS_STREAM_TIMEOUT_MIN_DEFAULT + 1);
cache.scan(NfsConfigKeys.DFS_NFS_STREAM_TIMEOUT_MIN_DEFAULT);
assertTrue(cache.size() == 0);
// Test cleaning inactive entry
@ -133,7 +133,7 @@ public void testScan() throws IOException, InterruptedException {
ret = cache.put(new FileHandle(4), context4);
assertTrue(ret);
context3.setActiveStatusForTest(false);
cache.scan(Nfs3Constant.OUTPUT_STREAM_TIMEOUT_DEFAULT);
cache.scan(NfsConfigKeys.DFS_NFS_STREAM_TIMEOUT_DEFAULT);
assertTrue(cache.size() == 1);
assertTrue(cache.get(new FileHandle(3)) == null);
assertTrue(cache.get(new FileHandle(4)) != null);

42
hadoop-hdfs-project/hadoop-hdfs-nfs/src/test/java/org/apache/hadoop/hdfs/nfs/nfs3/TestRpcProgramNfs3.java
View File

@ -17,6 +17,11 @@
*/
package org.apache.hadoop.hdfs.nfs.nfs3;
import static org.junit.Assert.assertTrue;
import org.apache.hadoop.fs.CommonConfigurationKeys;
import org.apache.hadoop.hdfs.nfs.conf.NfsConfigKeys;
import org.apache.hadoop.hdfs.nfs.conf.NfsConfiguration;
import org.apache.hadoop.nfs.nfs3.Nfs3Constant;
import org.junit.Assert;
import org.junit.Test;
@ -63,4 +68,41 @@ public void testIdempotent() {
}
}
}
@Test
public void testDeprecatedKeys() {
NfsConfiguration conf = new NfsConfiguration();
conf.setInt("nfs3.server.port", 998);
assertTrue(conf.getInt(NfsConfigKeys.DFS_NFS_SERVER_PORT_KEY, 0) == 998);
conf.setInt("nfs3.mountd.port", 999);
assertTrue(conf.getInt(NfsConfigKeys.DFS_NFS_MOUNTD_PORT_KEY, 0) == 999);
conf.set("dfs.nfs.exports.allowed.hosts", "host1");
assertTrue(conf.get(CommonConfigurationKeys.NFS_EXPORTS_ALLOWED_HOSTS_KEY)
.equals("host1"));
conf.setInt("dfs.nfs.exports.cache.expirytime.millis", 1000);
assertTrue(conf.getInt(
Nfs3Constant.NFS_EXPORTS_CACHE_EXPIRYTIME_MILLIS_KEY, 0) == 1000);
conf.setInt("hadoop.nfs.userupdate.milly", 10);
assertTrue(conf.getInt(Nfs3Constant.NFS_USERGROUP_UPDATE_MILLIS_KEY, 0) == 10);
conf.set("dfs.nfs3.dump.dir", "/nfs/tmp");
assertTrue(conf.get(NfsConfigKeys.DFS_NFS_FILE_DUMP_DIR_KEY).equals(
"/nfs/tmp"));
conf.setBoolean("dfs.nfs3.enableDump", false);
assertTrue(conf.getBoolean(NfsConfigKeys.DFS_NFS_FILE_DUMP_KEY, true) == false);
conf.setInt("dfs.nfs3.max.open.files", 500);
assertTrue(conf.getInt(NfsConfigKeys.DFS_NFS_MAX_OPEN_FILES_KEY, 0) == 500);
conf.setInt("dfs.nfs3.stream.timeout", 6000);
assertTrue(conf.getInt(NfsConfigKeys.DFS_NFS_STREAM_TIMEOUT_KEY, 0) == 6000);
conf.set("dfs.nfs3.export.point", "/dir1");
assertTrue(conf.get(NfsConfigKeys.DFS_NFS_EXPORT_POINT_KEY).equals("/dir1"));
}
}

12
hadoop-hdfs-project/hadoop-hdfs-nfs/src/test/java/org/apache/hadoop/hdfs/nfs/nfs3/TestWrites.java
View File

@ -27,11 +27,10 @@
import java.util.Arrays;
import java.util.concurrent.ConcurrentNavigableMap;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.hdfs.DFSClient;
import org.apache.hadoop.hdfs.HdfsConfiguration;
import org.apache.hadoop.hdfs.MiniDFSCluster;
import org.apache.hadoop.hdfs.client.HdfsDataOutputStream;
import org.apache.hadoop.hdfs.nfs.conf.NfsConfiguration;
import org.apache.hadoop.hdfs.nfs.nfs3.OpenFileCtx.COMMIT_STATUS;
import org.apache.hadoop.hdfs.nfs.nfs3.OpenFileCtx.CommitCtx;
import org.apache.hadoop.hdfs.protocol.HdfsFileStatus;
@ -139,7 +138,7 @@ public void testCheckCommit() throws IOException {
Mockito.when(fos.getPos()).thenReturn((long) 0);
OpenFileCtx ctx = new OpenFileCtx(fos, attr, "/dumpFilePath", dfsClient,
new IdUserGroup());
new IdUserGroup(new NfsConfiguration()));
COMMIT_STATUS ret;
@ -201,13 +200,14 @@ public void testCheckCommitFromRead() throws IOException {
Nfs3FileAttributes attr = new Nfs3FileAttributes();
HdfsDataOutputStream fos = Mockito.mock(HdfsDataOutputStream.class);
Mockito.when(fos.getPos()).thenReturn((long) 0);
NfsConfiguration config = new NfsConfiguration();
OpenFileCtx ctx = new OpenFileCtx(fos, attr, "/dumpFilePath", dfsClient,
new IdUserGroup());
new IdUserGroup(config));
FileHandle h = new FileHandle(1); // fake handle for "/dumpFilePath"
COMMIT_STATUS ret;
WriteManager wm = new WriteManager(new IdUserGroup(), new Configuration());
WriteManager wm = new WriteManager(new IdUserGroup(config), config);
assertTrue(wm.addOpenFileStream(h, ctx));
// Test inactive open file context
@ -280,7 +280,7 @@ private void waitWrite(RpcProgramNfs3 nfsd, FileHandle handle, int maxWaitTime)
@Test
public void testWriteStableHow() throws IOException, InterruptedException {
HdfsConfiguration config = new HdfsConfiguration();
NfsConfiguration config = new NfsConfiguration();
DFSClient client = null;
MiniDFSCluster cluster = null;
RpcProgramNfs3 nfsd;

4
hadoop-hdfs-project/hadoop-hdfs-nfs/src/test/resources/core-site.xml
View File

@ -18,12 +18,12 @@
<configuration>
<property>
<name>nfs3.server.port</name>
<name>nfs.server.port</name>
<value>2079</value>
</property>
<property>
<name>nfs3.mountd.port</name>
<name>nfs.mountd.port</name>
<value>4272</value>
</property>
</configuration>

2
hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
View File

@ -459,6 +459,8 @@ Release 2.5.0 - UNRELEASED
HDFS-6472. fix typo in webapps/hdfs/explorer.js. (Juan Yu via wang)
HDFS-6056. Clean up NFS config settings (brandonli)
OPTIMIZATIONS
HDFS-6214. Webhdfs has poor throughput for files >2GB (daryn)

6
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/DFSConfigKeys.java
View File

@ -639,12 +639,6 @@ public class DFSConfigKeys extends CommonConfigurationKeys {
public static final String DFS_DFSCLIENT_HEDGED_READ_THREADPOOL_SIZE =
"dfs.client.hedged.read.threadpool.size";
public static final int DEFAULT_DFSCLIENT_HEDGED_READ_THREADPOOL_SIZE = 0;
public static final String DFS_NFS_KEYTAB_FILE_KEY = "dfs.nfs.keytab.file";
public static final String DFS_NFS_KERBEROS_PRINCIPAL_KEY = "dfs.nfs.kerberos.principal";
public static final String DFS_NFS_REGISTRATION_PORT_KEY = "dfs.nfs.registration.port";
public static final int DFS_NFS_REGISTRATION_PORT_DEFAULT = 40; // Currently unassigned.
public static final String DFS_NFS_ALLOW_INSECURE_PORTS_KEY = "dfs.nfs.allow.insecure.ports";
public static final boolean DFS_NFS_ALLOW_INSECURE_PORTS_DEFAULT = true;
// Slow io warning log threshold settings for dfsclient and datanode.
public static final String DFS_CLIENT_SLOW_IO_WARNING_THRESHOLD_KEY =

54
hadoop-hdfs-project/hadoop-hdfs/src/main/resources/hdfs-default.xml
View File

@ -1296,8 +1296,56 @@
non-zero integer.
</description>
</property>
<property>
<name>dfs.nfs.keytab.file</name>
<name>nfs.server.port</name>
<value>2049</value>
<description>
Specify the port number used by Hadoop NFS.
</description>
</property>
<property>
<name>nfs.mountd.port</name>
<value>4242</value>
<description>
Specify the port number used by Hadoop mount daemon.
</description>
</property>
<property>
<name>nfs.dump.dir</name>
<value>/tmp/.hdfs-nfs</value>
<description>
This directory is used to temporarily save out-of-order writes before
writing to HDFS. For each file, the out-of-order writes are dumped after
they are accumulated to exceed certain threshold (e.g., 1MB) in memory.
One needs to make sure the directory has enough space.
</description>
</property>
<property>
<name>nfs.rtmax</name>
<value>1048576</value>
<description>This is the maximum size in bytes of a READ request
supported by the NFS gateway. If you change this, make sure you
also update the nfs mount's rsize(add rsize= # of bytes to the
mount directive).
</description>
</property>
<property>
<name>nfs.wtmax</name>
<value>1048576</value>
<description>This is the maximum size in bytes of a WRITE request
supported by the NFS gateway. If you change this, make sure you
also update the nfs mount's wsize(add wsize= # of bytes to the
mount directive).
</description>
</property>
<property>
<name>nfs.keytab.file</name>
<value></value>
<description>
*Note*: Advanced property. Change with caution.
@ -1307,7 +1355,7 @@
</property>
<property>
<name>dfs.nfs.kerberos.principal</name>
<name>nfs.kerberos.principal</name>
<value></value>
<description>
*Note*: Advanced property. Change with caution.
@ -1318,7 +1366,7 @@
</property>
<property>
<name>dfs.nfs.allow.insecure.ports</name>
<name>nfs.allow.insecure.ports</name>
<value>true</value>
<description>
When set to false, client connections originating from unprivileged ports

14
hadoop-hdfs-project/hadoop-hdfs/src/site/apt/HdfsNfsGateway.apt.vm
View File

@ -76,14 +76,14 @@ HDFS NFS Gateway
----
<property>
<name>dfs.nfs.keytab.file</name>
<name>nfs.keytab.file</name>
<value>/etc/hadoop/conf/nfsserver.keytab</value> <!-- path to the nfs gateway keytab -->
</property>
----
----
<property>
<name>dfs.nfs.kerberos.principal</name>
<name>nfs.kerberos.principal</name>
<value>nfsserver/_HOST@YOUR-REALM.COM</value>
</property>
----
@ -121,7 +121,7 @@ HDFS NFS Gateway
----
<property>
<name>dfs.nfs3.dump.dir</name>
<name>nfs.dump.dir</name>
<value>/tmp/.hdfs-nfs</value>
</property>
----
@ -134,7 +134,7 @@ HDFS NFS Gateway
----
<property>
<name>dfs.nfs.rtmax</name>
<name>nfs.rtmax</name>
<value>1048576</value>
<description>This is the maximum size in bytes of a READ request
supported by the NFS gateway. If you change this, make sure you
@ -146,7 +146,7 @@ HDFS NFS Gateway
----
<property>
<name>dfs.nfs.wtmax</name>
<name>nfs.wtmax</name>
<value>65536</value>
<description>This is the maximum size in bytes of a WRITE request
supported by the NFS gateway. If you change this, make sure you
@ -167,7 +167,7 @@ HDFS NFS Gateway
----
<property>
<name>dfs.nfs.exports.allowed.hosts</name>
<name>nfs.exports.allowed.hosts</name>
<value>* rw</value>
</property>
----
@ -345,7 +345,7 @@ HDFS NFS Gateway
file in the event one wishes to access the HDFS NFS Gateway from a system with
a completely disparate set of UIDs/GIDs. By default this file is located at
"/etc/nfs.map", but a custom location can be configured by setting the
"dfs.nfs.static.mapping.file" property to the path of the static mapping file.
"nfs.static.mapping.file" property to the path of the static mapping file.
The format of the static mapping file is similar to what is described in the
exports(5) manual page, but roughly it is: