public static LinkedHashSet<String> findJars(LogicalPlan dag, Class<?>[] defaultClasses) {
List<Class<?>> jarClasses = new ArrayList<Class<?>>();
for (String className : dag.getClassNames()) {
try {
Class<?> clazz = Thread.currentThread().getContextClassLoader().loadClass(className);
jarClasses.add(clazz);
} catch (ClassNotFoundException e) {
throw new IllegalArgumentException("Failed to load class " + className, e);
}
}
for (Class<?> clazz : Lists.newArrayList(jarClasses)) {
// process class and super classes (super does not require deploy annotation)
for (Class<?> c = clazz; c != Object.class && c != null; c = c.getSuperclass()) {
// LOG.debug("checking " + c);
jarClasses.add(c);
jarClasses.addAll(Arrays.asList(c.getInterfaces()));
}
}
jarClasses.addAll(Arrays.asList(defaultClasses));
if (dag.isDebug()) {
LOG.debug("Deploy dependencies: {}", jarClasses);
}
LinkedHashSet<String> localJarFiles = new LinkedHashSet<String>(); // avoid duplicates
HashMap<String, String> sourceToJar = new HashMap<String, String>();
for (Class<?> jarClass : jarClasses) {
if (jarClass.getProtectionDomain().getCodeSource() == null) {
// system class
continue;
}
String sourceLocation =
jarClass.getProtectionDomain().getCodeSource().getLocation().toString();
String jar = sourceToJar.get(sourceLocation);
if (jar == null) {
// don't create jar file from folders multiple times
jar = JarFinder.getJar(jarClass);
sourceToJar.put(sourceLocation, jar);
LOG.debug("added sourceLocation {} as {}", sourceLocation, jar);
}
if (jar == null) {
throw new AssertionError("Cannot resolve jar file for " + jarClass);
}
localJarFiles.add(jar);
}
String libJarsPath = dag.getValue(LogicalPlan.LIBRARY_JARS);
if (!StringUtils.isEmpty(libJarsPath)) {
String[] libJars = StringUtils.splitByWholeSeparator(libJarsPath, LIB_JARS_SEP);
localJarFiles.addAll(Arrays.asList(libJars));
}
LOG.info("Local jar file dependencies: " + localJarFiles);
return localJarFiles;
}
public int run(String[] args) throws Exception {
Configuration argConf = getConf();
// JobConf conf = new JobConf(diffdb.class);
Configuration config = HBaseConfiguration.create();
HBaseAdmin hbAdmin = new HBaseAdmin(config);
dbutil db_util = new dbutil(config);
HTable runTable = new HTable(config, "gestore_runs");
Get runGet = new Get(argConf.get("id").getBytes());
Result pipeline = runTable.get(runGet);
NavigableMap<byte[], byte[]> pipeMap = pipeline.getFamilyMap("d".getBytes());
Map.Entry<byte[], byte[]> results = pipeMap.pollFirstEntry();
HashMap<String, HashMap<String, String>> resultMap =
new HashMap<String, HashMap<String, String>>();
while (results != null) {
String resultKey = new String(results.getKey());
String resultValue = new String(results.getValue());
String field = "type";
HashMap<String, String> tempMap = new HashMap<String, String>();
String entry = resultKey;
if (resultKey.endsWith("_db_timestamp")) {
field = "db_timestamp";
entry = resultKey.substring(0, resultKey.lastIndexOf("_db_timestamp"));
} else if (resultKey.endsWith("_filename")) {
field = "filename";
entry = resultKey.substring(0, resultKey.lastIndexOf("_filename"));
} else if (resultKey.endsWith("_regex")) {
field = "regex";
entry = resultKey.substring(0, resultKey.lastIndexOf("_regex"));
}
if (resultMap.containsKey(entry)) {
tempMap = resultMap.get(entry);
}
tempMap.put(field, resultValue);
resultMap.put(entry, tempMap);
// System.out.println("Key: " + resultKey + " Value: " + resultValue);
results = pipeMap.pollFirstEntry();
}
for (String key : resultMap.keySet()) {
System.out.println("File ID: " + key);
for (String subKey : resultMap.get(key).keySet()) {
// System.out.println("\t " + subKey + "\t\t" + resultMap.get(key).get(subKey));
System.out.format(" %1$-20s %2$s\n", subKey, resultMap.get(key).get(subKey));
}
}
return 0;
}
void getVolumeMap(HashMap<Block, DatanodeBlockInfo> volumeMap, FSVolume volume) {
if (children != null) {
for (int i = 0; i < children.length; i++) {
children[i].getVolumeMap(volumeMap, volume);
}
}
File blockFiles[] = dir.listFiles();
for (int i = 0; i < blockFiles.length; i++) {
if (Block.isBlockFilename(blockFiles[i])) {
long genStamp = getGenerationStampFromFile(blockFiles, blockFiles[i]);
volumeMap.put(
new Block(blockFiles[i], blockFiles[i].length(), genStamp),
new DatanodeBlockInfo(volume, blockFiles[i]));
}
}
}
/** Complete the block write! */
public synchronized void finalizeBlock(Block b) throws IOException {
ActiveFile activeFile = ongoingCreates.get(b);
if (activeFile == null) {
throw new IOException("Block " + b + " is already finalized.");
}
File f = activeFile.file;
if (f == null || !f.exists()) {
throw new IOException("No temporary file " + f + " for block " + b);
}
FSVolume v = volumeMap.get(b).getVolume();
if (v == null) {
throw new IOException("No volume for temporary file " + f + " for block " + b);
}
File dest = null;
dest = v.addBlock(b, f);
volumeMap.put(b, new DatanodeBlockInfo(v, dest));
ongoingCreates.remove(b);
}
/**
* Start writing to a block file If isRecovery is true and the block pre-exists, then we kill all
* volumeMap.put(b, v); volumeMap.put(b, v); other threads that might be writing to this block,
* and then reopen the file.
*/
public BlockWriteStreams writeToBlock(Block b, boolean isRecovery) throws IOException {
//
// Make sure the block isn't a valid one - we're still creating it!
//
if (isValidBlock(b)) {
if (!isRecovery) {
throw new BlockAlreadyExistsException(
"Block " + b + " is valid, and cannot be written to.");
}
// If the block was successfully finalized because all packets
// were successfully processed at the Datanode but the ack for
// some of the packets were not received by the client. The client
// re-opens the connection and retries sending those packets.
// The other reason is that an "append" is occurring to this block.
detachBlock(b, 1);
}
long blockSize = b.getNumBytes();
//
// Serialize access to /tmp, and check if file already there.
//
File f = null;
List<Thread> threads = null;
synchronized (this) {
//
// Is it already in the create process?
//
ActiveFile activeFile = ongoingCreates.get(b);
if (activeFile != null) {
f = activeFile.file;
threads = activeFile.threads;
if (!isRecovery) {
throw new BlockAlreadyExistsException(
"Block "
+ b
+ " has already been started (though not completed), and thus cannot be created.");
} else {
for (Thread thread : threads) {
thread.interrupt();
}
}
ongoingCreates.remove(b);
}
FSVolume v = null;
if (!isRecovery) {
v = volumes.getNextVolume(blockSize);
// create temporary file to hold block in the designated volume
f = createTmpFile(v, b);
volumeMap.put(b, new DatanodeBlockInfo(v));
} else if (f != null) {
DataNode.LOG.info("Reopen already-open Block for append " + b);
// create or reuse temporary file to hold block in the
// designated volume
v = volumeMap.get(b).getVolume();
volumeMap.put(b, new DatanodeBlockInfo(v));
} else {
// reopening block for appending to it.
DataNode.LOG.info("Reopen Block for append " + b);
v = volumeMap.get(b).getVolume();
f = createTmpFile(v, b);
File blkfile = getBlockFile(b);
File oldmeta = getMetaFile(b);
File newmeta = getMetaFile(f, b);
// rename meta file to tmp directory
DataNode.LOG.debug("Renaming " + oldmeta + " to " + newmeta);
if (!oldmeta.renameTo(newmeta)) {
throw new IOException(
"Block "
+ b
+ " reopen failed. "
+ " Unable to move meta file "
+ oldmeta
+ " to tmp dir "
+ newmeta);
}
// rename block file to tmp directory
DataNode.LOG.debug("Renaming " + blkfile + " to " + f);
if (!blkfile.renameTo(f)) {
if (!f.delete()) {
throw new IOException(
"Block " + b + " reopen failed. " + " Unable to remove file " + f);
}
if (!blkfile.renameTo(f)) {
throw new IOException(
"Block "
+ b
+ " reopen failed. "
+ " Unable to move block file "
+ blkfile
+ " to tmp dir "
+ f);
}
}
volumeMap.put(b, new DatanodeBlockInfo(v));
}
if (f == null) {
DataNode.LOG.warn("Block " + b + " reopen failed " + " Unable to locate tmp file.");
throw new IOException("Block " + b + " reopen failed " + " Unable to locate tmp file.");
}
ongoingCreates.put(b, new ActiveFile(f, threads));
}
try {
if (threads != null) {
for (Thread thread : threads) {
thread.join();
}
}
} catch (InterruptedException e) {
throw new IOException("Recovery waiting for thread interrupted.");
}
//
// Finally, allow a writer to the block file
// REMIND - mjc - make this a filter stream that enforces a max
// block size, so clients can't go crazy
//
File metafile = getMetaFile(f, b);
DataNode.LOG.debug("writeTo blockfile is " + f + " of size " + f.length());
DataNode.LOG.debug("writeTo metafile is " + metafile + " of size " + metafile.length());
return createBlockWriteStreams(f, metafile);
}
/**
* Method to go though the HDFS filesystem in a DFS to find all files
*
* <p>fs:FileSystem object from HDFS minDate: Oldest date for files to be backed up maxDate:Newest
* date for files to be backed up p:Path in HDFS to look for files pathList:Will be filled with
* all files in p hmTimestamps: hashmap of timestamps for later sorting
*/
public void checkDir(
FileSystem fs,
long minDate,
long maxDate,
Path p,
ArrayList<Path> pathList,
HashMap<Path, Long> hmTimestamps) {
long tmpDate;
FileStatus[] fStat;
try {
String sPath = p.toUri().getPath();
// If this is a directory
if (fs.getFileStatus(p).isDir()) {
// ignore certain directories
if ("dfstmp".equals(p.getName())
|| "tmp".equals(p.getName())
|| "jobtracker".equals(p.getName())
|| sPath.startsWith("/mapred")
|| "ops".equals(p.getName())
|| p.getName().startsWith("_distcp_logs")) {
return;
}
// dump the mkdir and chmod commands for this
// directory -- skip root directory only
{
FileStatus stat = fs.getFileStatus(p);
if (!sPath.equals("/")) {
m_wrMkdirs.println("hadoop fs -mkdir " + sPath);
}
m_wrChmods.println(
"hadoop fs -chown " + stat.getOwner() + ":" + stat.getGroup() + " " + sPath);
Short sh = new Short(stat.getPermission().toShort());
m_wrChmods.println(
"hadoop fs -chmod " + Long.toOctalString(sh.longValue()) + " " + sPath);
}
fStat = fs.listStatus(p);
// Do a recursive call to all elements
for (int i = 0; i < fStat.length; i++) {
checkDir(fs, minDate, maxDate, fStat[i].getPath(), pathList, hmTimestamps);
}
} else {
// If not a directory then we've found a file
// ignore crc files
if (p.getName().endsWith(".crc")) {
return;
}
// ignore other files
if (sPath.startsWith("/user/oozie/etl/workflows/")) {
return;
}
// try to get the table name from the path. There are
// various types of tables, from those replicated from
// another database to regular hive tables to
// partitioned hive tables. We use table names to
// both exclude some from the backup, and for the rest
// to dump out the schema and partition name.
if (m_ignoreTables != null && m_ignoreTables.doIgnoreFile(sPath)) {
m_nIgnoredTables++;
if (m_nIgnoredTables < 5) {
System.out.println("Skipping ignore-table file: " + sPath);
} else if (m_nIgnoredTables == 5) {
System.out.println("(...not showing other skipped tables...)");
}
return;
}
FileStatus stat = fs.getFileStatus(p);
tmpDate = stat.getModificationTime() / 1000;
// store the chmods/chowns for all files
m_wrChmods.println(
"hadoop fs -chown " + stat.getOwner() + ":" + stat.getGroup() + " " + sPath);
m_wrChmods.println("hadoop fs -chmod " + stat.getPermission().toShort() + " " + sPath);
// check dates. is it too young?
if (tmpDate < minDate) {
return;
}
// is the file too recent?
if (tmpDate > maxDate) {
// System.out.println("file too recent: " + sPath);
return;
}
// file timestamp is ok
pathList.add(p);
hmTimestamps.put(p, new Long(tmpDate));
// store info about total bytes neeed to backup
m_nTotalBytes += fs.getContentSummary(p).getLength();
}
} catch (IOException e) {
System.err.println("ERROR: could not open " + p + ": " + e);
// System.exit(1) ;
}
}
