com.qcloud.chdfs.fs.CHDFSHadoopFileSystemAdapter Maven / Gradle / Ivy
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Tencent Qcloud chdfs hadoop plugins.
package com.qcloud.chdfs.fs;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.fs.ContentSummary;
import org.apache.hadoop.fs.CreateFlag;
import org.apache.hadoop.fs.FSDataInputStream;
import org.apache.hadoop.fs.FSDataOutputStream;
import org.apache.hadoop.fs.FileAlreadyExistsException;
import org.apache.hadoop.fs.FileChecksum;
import org.apache.hadoop.fs.FileStatus;
import org.apache.hadoop.fs.FsStatus;
import org.apache.hadoop.fs.ParentNotDirectoryException;
import org.apache.hadoop.fs.Path;
import org.apache.hadoop.fs.UnsupportedFileSystemException;
import org.apache.hadoop.fs.XAttrSetFlag;
import org.apache.hadoop.fs.permission.AclEntry;
import org.apache.hadoop.fs.permission.AclStatus;
import org.apache.hadoop.fs.permission.FsPermission;
import org.apache.hadoop.security.AccessControlException;
import org.apache.hadoop.security.token.Token;
import org.apache.hadoop.util.Progressable;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.net.URI;
import java.util.EnumSet;
import java.util.List;
import java.util.Map;
import java.util.concurrent.ThreadLocalRandom;
import java.util.regex.Pattern;
public class CHDFSHadoopFileSystemAdapter extends FileSystemWithLockCleaner {
static final String SCHEME = "ofs";
private static final Logger log = LoggerFactory.getLogger(CHDFSHadoopFileSystemAdapter.class);
private static final String MOUNT_POINT_ADDR_PATTERN =
"^([a-zA-Z0-9-]+)\\.chdfs(-dualstack)?(\\.inner)?\\.([a-z0-9-]+)\\.([a-z0-9-.]+)";
private static final String CHDFS_USER_APPID_KEY = "fs.ofs.user.appid";
private static final String CHDFS_TMP_CACHE_DIR_KEY = "fs.ofs.tmp.cache.dir";
private static final String CHDFS_META_SERVER_PORT_KEY = "fs.ofs.meta.server.port";
private static final String CHDFS_META_TRANSFER_USE_TLS_KEY = "fs.ofs.meta.transfer.tls";
private static final boolean DEFAULT_CHDFS_META_TRANSFER_USE_TLS = true;
private static final int DEFAULT_CHDFS_META_SERVER_PORT = 443;
private final CHDFSHadoopFileSystemJarLoader jarLoader = new CHDFSHadoopFileSystemJarLoader();
private FileSystemWithLockCleaner actualImplFS = null;
private URI uri = null;
private Path workingDir = null;
private long initStartMs;
@Override
public String getScheme() {
return CHDFSHadoopFileSystemAdapter.SCHEME;
}
@Override
public void initialize(URI name, Configuration conf) throws IOException {
log.debug("CHDFSHadoopFileSystemAdapter adapter initialize");
this.initStartMs = System.currentTimeMillis();
log.debug("CHDFSHadoopFileSystemAdapter start-init-start time: {}", initStartMs);
try {
super.initialize(name, conf);
this.setConf(conf);
String mountPointAddr = name.getHost();
if (mountPointAddr == null || !isValidMountPointAddr(mountPointAddr)) {
String errMsg = String.format("mountPointAddr %s is invalid, fullUri: %s, exp. f4mabcdefgh-xyzw.chdfs"
+ ".ap-guangzhou.myqcloud.com", mountPointAddr == null ? "null" : mountPointAddr,
name.toString());
log.error(errMsg);
throw new IOException(errMsg);
}
long appid = getAppid(conf);
int jarPluginServerPort = getJarPluginServerPort(conf);
String tmpDirPath = initCacheTmpDir(conf);
boolean jarPluginServerHttpsFlag = isJarPluginServerHttps(conf);
initJarLoadWithRetry(mountPointAddr, appid, jarPluginServerPort, tmpDirPath, jarPluginServerHttpsFlag);
this.actualImplFS = jarLoader.getActualFileSystem();
if (this.actualImplFS == null) {
// should never reach here
throw new IOException("impl filesystem is null");
}
long actualInitStartMs = System.currentTimeMillis();
this.actualImplFS.initialize(name, conf);
log.debug("init actual file system, [elapse-ms: {}]", System.currentTimeMillis() - actualInitStartMs);
this.uri = this.actualImplFS.getUri();
this.workingDir = this.actualImplFS.getWorkingDirectory();
} catch (IOException ioe) {
log.error("initialize failed! a ioException occur!", ioe);
throw ioe;
} catch (Exception e) {
log.error("initialize failed! a unexpected exception occur!", e);
throw new IOException("initialize failed! oops! a unexpected exception occur! " + e.toString(), e);
}
log.debug("total init file system, [elapse-ms: {}]", System.currentTimeMillis() - initStartMs);
}
boolean isValidMountPointAddr(String mountPointAddr) {
return Pattern.matches(MOUNT_POINT_ADDR_PATTERN, mountPointAddr);
}
private long getAppid(Configuration conf) throws IOException {
long appid = 0;
try {
appid = conf.getLong(CHDFS_USER_APPID_KEY, 0);
} catch (NumberFormatException e) {
throw new IOException(String.format("config for %s is invalid appid number", CHDFS_USER_APPID_KEY));
}
if (appid <= 0) {
throw new IOException(
String.format("config for %s is missing or invalid appid number", CHDFS_USER_APPID_KEY));
}
return appid;
}
private int getJarPluginServerPort(Configuration conf) {
return conf.getInt(CHDFS_META_SERVER_PORT_KEY, DEFAULT_CHDFS_META_SERVER_PORT);
}
private String initCacheTmpDir(Configuration conf) throws IOException {
String chdfsTmpCacheDirPath = conf.get(CHDFS_TMP_CACHE_DIR_KEY);
if (chdfsTmpCacheDirPath == null) {
String errMsg = String.format("chdfs config %s is missing", CHDFS_TMP_CACHE_DIR_KEY);
log.error(errMsg);
throw new IOException(errMsg);
}
if (!chdfsTmpCacheDirPath.startsWith("/")) {
String errMsg = String.format("chdfs config [%s: %s] must be absolute path", CHDFS_TMP_CACHE_DIR_KEY,
chdfsTmpCacheDirPath);
log.error(errMsg);
throw new IOException(errMsg);
}
File chdfsTmpCacheDir = new File(chdfsTmpCacheDirPath);
if (!chdfsTmpCacheDir.exists()) {
// judge exists again, may many map-reduce processes create cache dir parallel
if (!chdfsTmpCacheDir.mkdirs() && !chdfsTmpCacheDir.exists()) {
String errMsg = String.format("mkdir for chdfs tmp dir %s failed", chdfsTmpCacheDir.getAbsolutePath());
log.error(errMsg);
throw new IOException(errMsg);
}
chdfsTmpCacheDir.setReadable(true, false);
chdfsTmpCacheDir.setWritable(true, false);
chdfsTmpCacheDir.setExecutable(true, false);
}
if (!chdfsTmpCacheDir.isDirectory()) {
String errMsg = String.format("chdfs config [%s: %s] is invalid directory", CHDFS_TMP_CACHE_DIR_KEY,
chdfsTmpCacheDir.getAbsolutePath());
log.error(errMsg);
throw new IOException(errMsg);
}
if (!chdfsTmpCacheDir.canRead()) {
String errMsg = String.format("chdfs config [%s: %s] is not readable", CHDFS_TMP_CACHE_DIR_KEY,
chdfsTmpCacheDirPath);
log.error(errMsg);
throw new IOException(errMsg);
}
if (!chdfsTmpCacheDir.canWrite()) {
String errMsg = String.format("chdfs config [%s: %s] is not writeable", CHDFS_TMP_CACHE_DIR_KEY,
chdfsTmpCacheDirPath);
log.error(errMsg);
throw new IOException(errMsg);
}
return chdfsTmpCacheDirPath;
}
private boolean isJarPluginServerHttps(Configuration conf) {
return conf.getBoolean(CHDFS_META_TRANSFER_USE_TLS_KEY, DEFAULT_CHDFS_META_TRANSFER_USE_TLS);
}
private void initJarLoadWithRetry(String mountPointAddr, long appid, int jarPluginServerPort, String tmpDirPath,
boolean jarPluginServerHttps) throws IOException {
int maxRetry = 5;
for (int retryIndex = 0; retryIndex <= maxRetry; retryIndex++) {
try {
jarLoader.init(mountPointAddr, appid, jarPluginServerPort, tmpDirPath, jarPluginServerHttps);
return;
} catch (IOException e) {
if (retryIndex < maxRetry) {
log.warn(String.format("init chdfs impl failed, we will retry again, retryInfo: %d/%d", retryIndex,
maxRetry), e);
} else {
log.error("init chdfs impl failed", e);
throw new IOException("init chdfs impl failed", e);
}
}
try {
Thread.sleep(ThreadLocalRandom.current().nextLong(500, 2000));
} catch (InterruptedException ignore) {
// ignore
}
}
}
@java.lang.Override
public java.net.URI getUri() {
return this.uri;
}
private void judgeActualFSInitialized() {
if (this.actualImplFS == null) {
throw new RuntimeException("please init the fileSystem first!");
}
}
@java.lang.Override
public FSDataInputStream open(Path f, int bufferSize) throws IOException {
judgeActualFSInitialized();
return this.actualImplFS.open(f, bufferSize);
}
@java.lang.Override
public FSDataOutputStream createNonRecursive(Path f, FsPermission permission, EnumSet flags,
int bufferSize, short replication, long blockSize, Progressable progress) throws IOException {
judgeActualFSInitialized();
return this.actualImplFS.createNonRecursive(f, permission, flags, bufferSize, replication, blockSize, progress);
}
@java.lang.Override
public FSDataOutputStream create(Path f, FsPermission permission, boolean overwrite, int bufferSize,
short replication, long blockSize, Progressable progress) throws IOException {
judgeActualFSInitialized();
return this.actualImplFS.create(f, permission, overwrite, bufferSize, replication, blockSize, progress);
}
@java.lang.Override
public FSDataOutputStream append(Path f, int bufferSize, Progressable progress) throws IOException {
judgeActualFSInitialized();
return this.actualImplFS.append(f, bufferSize, progress);
}
public boolean truncate(Path f, long newLength) throws IOException {
judgeActualFSInitialized();
return this.actualImplFS.truncate(f, newLength);
}
@Override
public void concat(Path trg, Path[] psrcs) throws IOException {
judgeActualFSInitialized();
this.actualImplFS.concat(trg, psrcs);
}
@java.lang.Override
public boolean rename(Path src, Path dst) throws IOException {
judgeActualFSInitialized();
return this.actualImplFS.rename(src, dst);
}
@java.lang.Override
public boolean delete(Path f, boolean recursive) throws IOException {
judgeActualFSInitialized();
return this.actualImplFS.delete(f, recursive);
}
@java.lang.Override
public boolean deleteOnExit(Path f) throws IOException {
judgeActualFSInitialized();
return this.actualImplFS.deleteOnExit(f);
}
@java.lang.Override
public boolean cancelDeleteOnExit(Path f) {
judgeActualFSInitialized();
return this.actualImplFS.cancelDeleteOnExit(f);
}
@java.lang.Override
public FileStatus[] listStatus(Path f) throws FileNotFoundException, IOException {
judgeActualFSInitialized();
return this.actualImplFS.listStatus(f);
}
@java.lang.Override
public Path getWorkingDirectory() {
return this.workingDir;
}
@java.lang.Override
public void setWorkingDirectory(Path new_dir) {
this.workingDir = new_dir;
if (this.actualImplFS == null) {
log.warn("fileSystem is not init yet!");
} else {
this.actualImplFS.setWorkingDirectory(new_dir);
}
}
@Override
public Path getHomeDirectory() {
if (this.actualImplFS == null) {
return super.getHomeDirectory();
}
return this.actualImplFS.getHomeDirectory();
}
@java.lang.Override
public boolean mkdirs(Path f, FsPermission permission) throws IOException {
judgeActualFSInitialized();
return this.actualImplFS.mkdirs(f, permission);
}
@java.lang.Override
public FileStatus getFileStatus(Path f) throws IOException {
judgeActualFSInitialized();
return this.actualImplFS.getFileStatus(f);
}
@Override
public void createSymlink(Path target, Path link, boolean createParent)
throws AccessControlException, FileAlreadyExistsException, FileNotFoundException,
ParentNotDirectoryException, UnsupportedFileSystemException, IOException {
judgeActualFSInitialized();
this.actualImplFS.createSymlink(target, link, createParent);
}
@Override
public FileStatus getFileLinkStatus(final Path f)
throws AccessControlException, FileNotFoundException, UnsupportedFileSystemException, IOException {
judgeActualFSInitialized();
return this.actualImplFS.getFileLinkStatus(f);
}
@Override
public boolean supportsSymlinks() {
if (this.actualImplFS == null) {
return super.supportsSymlinks();
}
return this.actualImplFS.supportsSymlinks();
}
@Override
public Path getLinkTarget(Path f) throws IOException {
judgeActualFSInitialized();
return this.actualImplFS.getLinkTarget(f);
}
@Override
protected Path resolveLink(Path f) throws IOException {
return getLinkTarget(f);
}
@Override
public FileChecksum getFileChecksum(Path f, long length) throws IOException {
judgeActualFSInitialized();
return this.actualImplFS.getFileChecksum(f, length);
}
@Override
public void setVerifyChecksum(boolean verifyChecksum) {
judgeActualFSInitialized();
this.actualImplFS.setVerifyChecksum(verifyChecksum);
}
@Override
public void setWriteChecksum(boolean writeChecksum) {
judgeActualFSInitialized();
this.actualImplFS.setWriteChecksum(writeChecksum);
}
@Override
public FsStatus getStatus(Path p) throws IOException {
judgeActualFSInitialized();
return this.actualImplFS.getStatus(p);
}
@Override
public void setPermission(Path p, FsPermission permission) throws IOException {
judgeActualFSInitialized();
this.actualImplFS.setPermission(p, permission);
}
@Override
public void setOwner(Path p, String username, String groupname) throws IOException {
judgeActualFSInitialized();
this.actualImplFS.setOwner(p, username, groupname);
}
@Override
public void setTimes(Path p, long mtime, long atime) throws IOException {
judgeActualFSInitialized();
this.actualImplFS.setTimes(p, mtime, atime);
}
@Override
public Path createSnapshot(Path path, String snapshotName) throws IOException {
judgeActualFSInitialized();
return this.actualImplFS.createSnapshot(path, snapshotName);
}
@Override
public void renameSnapshot(Path path, String snapshotOldName, String snapshotNewName) throws IOException {
judgeActualFSInitialized();
this.actualImplFS.renameSnapshot(path, snapshotOldName, snapshotNewName);
}
@Override
public void deleteSnapshot(Path path, String snapshotName) throws IOException {
judgeActualFSInitialized();
this.actualImplFS.deleteSnapshot(path, snapshotName);
}
@Override
public void modifyAclEntries(Path path, List aclSpec) throws IOException {
judgeActualFSInitialized();
this.actualImplFS.modifyAclEntries(path, aclSpec);
}
@Override
public void removeAclEntries(Path path, List aclSpec) throws IOException {
judgeActualFSInitialized();
this.actualImplFS.removeAclEntries(path, aclSpec);
}
@Override
public void removeDefaultAcl(Path path) throws IOException {
judgeActualFSInitialized();
this.actualImplFS.removeDefaultAcl(path);
}
@Override
public void removeAcl(Path path) throws IOException {
judgeActualFSInitialized();
this.actualImplFS.removeAcl(path);
}
@Override
public void setAcl(Path path, List aclSpec) throws IOException {
judgeActualFSInitialized();
this.actualImplFS.setAcl(path, aclSpec);
}
@Override
public AclStatus getAclStatus(Path path) throws IOException {
judgeActualFSInitialized();
return this.actualImplFS.getAclStatus(path);
}
@Override
public void setXAttr(Path path, String name, byte[] value, EnumSet flag) throws IOException {
judgeActualFSInitialized();
this.actualImplFS.setXAttr(path, name, value, flag);
}
@Override
public byte[] getXAttr(Path path, String name) throws IOException {
judgeActualFSInitialized();
return this.actualImplFS.getXAttr(path, name);
}
@Override
public Map getXAttrs(Path path) throws IOException {
judgeActualFSInitialized();
return this.actualImplFS.getXAttrs(path);
}
@Override
public Map getXAttrs(Path path, List names) throws IOException {
judgeActualFSInitialized();
return this.actualImplFS.getXAttrs(path, names);
}
@Override
public List listXAttrs(Path path) throws IOException {
judgeActualFSInitialized();
return this.actualImplFS.listXAttrs(path);
}
@Override
public void removeXAttr(Path path, String name) throws IOException {
judgeActualFSInitialized();
this.actualImplFS.removeXAttr(path, name);
}
@Override
public Token getDelegationToken(String renewer) throws IOException {
judgeActualFSInitialized();
return this.actualImplFS.getDelegationToken(renewer);
}
@Override
public String getCanonicalServiceName() {
if (this.actualImplFS == null) {
return null;
} else {
return this.actualImplFS.getCanonicalServiceName();
}
}
@Override
public ContentSummary getContentSummary(Path f) throws IOException {
judgeActualFSInitialized();
return this.actualImplFS.getContentSummary(f);
}
@Override
public void releaseFileLock(Path p) throws IOException {
if (this.actualImplFS == null) {
throw new IOException("please init the fileSystem first!");
}
this.actualImplFS.releaseFileLock(p);
}
@Override
public void close() throws IOException {
judgeActualFSInitialized();
super.close();
this.actualImplFS.close();
}
}