/**
* Generate the list of files and make them into FileSplits. This needs to be copied to insert a
* filter on acceptable data
*/
@Override
public List<InputSplit> getSplits(JobContext job) throws IOException {
long minSize = Math.max(getFormatMinSplitSize(), getMinSplitSize(job));
long maxSize = getMaxSplitSize(job);
long desiredMappers =
job.getConfiguration().getLong("org.systemsbiology.jxtandem.DesiredXMLInputMappers", 0);
// generate splits
List<InputSplit> splits = new ArrayList<InputSplit>();
List<FileStatus> fileStatuses = listStatus(job);
boolean forceNumberMappers = fileStatuses.size() == 1;
for (FileStatus file : fileStatuses) {
Path path = file.getPath();
if (!isPathAcceptable(path)) // filter acceptable data
continue;
FileSystem fs = path.getFileSystem(job.getConfiguration());
long length = file.getLen();
BlockLocation[] blkLocations = fs.getFileBlockLocations(file, 0, length);
if ((length != 0) && isSplitable(job, path)) {
long blockSize = file.getBlockSize();
// use desired mappers to force more splits
if (forceNumberMappers && desiredMappers > 0)
maxSize = Math.min(maxSize, (length / desiredMappers));
long splitSize = computeSplitSize(blockSize, minSize, maxSize);
long bytesRemaining = length;
while (withinSlop(splitSize, bytesRemaining)) {
int blkIndex = getBlockIndex(blkLocations, length - bytesRemaining);
splits.add(
new FileSplit(
path, length - bytesRemaining, splitSize, blkLocations[blkIndex].getHosts()));
bytesRemaining -= splitSize;
}
if (bytesRemaining != 0) {
splits.add(
new FileSplit(
path,
length - bytesRemaining,
bytesRemaining,
blkLocations[blkLocations.length - 1].getHosts()));
}
} else if (length != 0) {
splits.add(new FileSplit(path, 0, length, blkLocations[0].getHosts()));
} else {
// Create empty hosts array for zero length files
splits.add(new FileSplit(path, 0, length, new String[0]));
}
}
System.out.println("Total # of splits: " + splits.size());
// LOG.debug("Total # of splits: " + splits.size());
return splits;
}
@Test
public void testDeleteMissing() {
TaskAttemptContext taskAttemptContext = getTaskAttemptContext(config);
JobContext jobContext =
new JobContextImpl(
taskAttemptContext.getConfiguration(),
taskAttemptContext.getTaskAttemptID().getJobID());
Configuration conf = jobContext.getConfiguration();
String sourceBase;
String targetBase;
FileSystem fs = null;
try {
OutputCommitter committer = new CopyCommitter(null, taskAttemptContext);
fs = FileSystem.get(conf);
sourceBase = TestDistCpUtils.createTestSetup(fs, FsPermission.getDefault());
targetBase = TestDistCpUtils.createTestSetup(fs, FsPermission.getDefault());
String targetBaseAdd = TestDistCpUtils.createTestSetup(fs, FsPermission.getDefault());
fs.rename(new Path(targetBaseAdd), new Path(targetBase));
DistCpOptions options =
new DistCpOptions(Arrays.asList(new Path(sourceBase)), new Path("/out"));
options.setSyncFolder(true);
options.setDeleteMissing(true);
options.appendToConf(conf);
CopyListing listing = new GlobbedCopyListing(conf, CREDENTIALS);
Path listingFile = new Path("/tmp1/" + String.valueOf(rand.nextLong()));
listing.buildListing(listingFile, options);
conf.set(DistCpConstants.CONF_LABEL_TARGET_WORK_PATH, targetBase);
conf.set(DistCpConstants.CONF_LABEL_TARGET_FINAL_PATH, targetBase);
committer.commitJob(jobContext);
if (!TestDistCpUtils.checkIfFoldersAreInSync(fs, targetBase, sourceBase)) {
Assert.fail("Source and target folders are not in sync");
}
if (!TestDistCpUtils.checkIfFoldersAreInSync(fs, sourceBase, targetBase)) {
Assert.fail("Source and target folders are not in sync");
}
// Test for idempotent commit
committer.commitJob(jobContext);
if (!TestDistCpUtils.checkIfFoldersAreInSync(fs, targetBase, sourceBase)) {
Assert.fail("Source and target folders are not in sync");
}
if (!TestDistCpUtils.checkIfFoldersAreInSync(fs, sourceBase, targetBase)) {
Assert.fail("Source and target folders are not in sync");
}
} catch (Throwable e) {
LOG.error("Exception encountered while testing for delete missing", e);
Assert.fail("Delete missing failure");
} finally {
TestDistCpUtils.delete(fs, "/tmp1");
conf.set(DistCpConstants.CONF_LABEL_DELETE_MISSING, "false");
}
}
/**
* Implementation of InputFormat::getSplits(). Returns a list of InputSplits, such that the number
* of bytes to be copied for all the splits are approximately equal.
*
* @param context JobContext for the job.
* @return The list of uniformly-distributed input-splits.
* @throws IOException
* @throws InterruptedException
*/
@Override
public List<InputSplit> getSplits(JobContext context) throws IOException, InterruptedException {
Configuration configuration = context.getConfiguration();
int numSplits = DistCpUtils.getInt(configuration, JobContext.NUM_MAPS);
if (numSplits == 0) return new ArrayList<InputSplit>();
return getSplits(
configuration,
numSplits,
DistCpUtils.getLong(configuration, DistCpConstants.CONF_LABEL_TOTAL_BYTES_TO_BE_COPIED));
}
@Test
public void testPreserveStatus() {
TaskAttemptContext taskAttemptContext = getTaskAttemptContext(config);
JobContext jobContext =
new JobContextImpl(
taskAttemptContext.getConfiguration(),
taskAttemptContext.getTaskAttemptID().getJobID());
Configuration conf = jobContext.getConfiguration();
String sourceBase;
String targetBase;
FileSystem fs = null;
try {
OutputCommitter committer = new CopyCommitter(null, taskAttemptContext);
fs = FileSystem.get(conf);
FsPermission sourcePerm = new FsPermission((short) 511);
FsPermission initialPerm = new FsPermission((short) 448);
sourceBase = TestDistCpUtils.createTestSetup(fs, sourcePerm);
targetBase = TestDistCpUtils.createTestSetup(fs, initialPerm);
DistCpOptions options =
new DistCpOptions(Arrays.asList(new Path(sourceBase)), new Path("/out"));
options.preserve(FileAttribute.PERMISSION);
options.appendToConf(conf);
CopyListing listing = new GlobbedCopyListing(conf, CREDENTIALS);
Path listingFile = new Path("/tmp1/" + String.valueOf(rand.nextLong()));
listing.buildListing(listingFile, options);
conf.set(DistCpConstants.CONF_LABEL_TARGET_WORK_PATH, targetBase);
committer.commitJob(jobContext);
if (!checkDirectoryPermissions(fs, targetBase, sourcePerm)) {
Assert.fail("Permission don't match");
}
// Test for idempotent commit
committer.commitJob(jobContext);
if (!checkDirectoryPermissions(fs, targetBase, sourcePerm)) {
Assert.fail("Permission don't match");
}
} catch (IOException e) {
LOG.error("Exception encountered while testing for preserve status", e);
Assert.fail("Preserve status failure");
} finally {
TestDistCpUtils.delete(fs, "/tmp1");
}
}
@SuppressWarnings("unchecked")
private <T extends InputSplit> int writeNewSplits(JobContext job, Path jobSubmitDir)
throws IOException, InterruptedException, ClassNotFoundException {
Configuration conf = job.getConfiguration();
InputFormat<?, ?> input = ReflectionUtils.newInstance(job.getInputFormatClass(), conf);
List<InputSplit> splits = input.getSplits(job);
T[] array = (T[]) splits.toArray(new InputSplit[splits.size()]);
// sort the splits into order based on size, so that the biggest
// go first
Arrays.sort(array, new SplitComparator());
JobSplitWriter.createSplitFiles(jobSubmitDir, conf, jobSubmitDir.getFileSystem(conf), array);
//// num of split. the same as num of maps
return array.length;
}
@Test
public void testAtomicCommitExistingFinal() {
TaskAttemptContext taskAttemptContext = getTaskAttemptContext(config);
JobContext jobContext =
new JobContextImpl(
taskAttemptContext.getConfiguration(),
taskAttemptContext.getTaskAttemptID().getJobID());
Configuration conf = jobContext.getConfiguration();
String workPath = "/tmp1/" + String.valueOf(rand.nextLong());
String finalPath = "/tmp1/" + String.valueOf(rand.nextLong());
FileSystem fs = null;
try {
OutputCommitter committer = new CopyCommitter(null, taskAttemptContext);
fs = FileSystem.get(conf);
fs.mkdirs(new Path(workPath));
fs.mkdirs(new Path(finalPath));
conf.set(DistCpConstants.CONF_LABEL_TARGET_WORK_PATH, workPath);
conf.set(DistCpConstants.CONF_LABEL_TARGET_FINAL_PATH, finalPath);
conf.setBoolean(DistCpConstants.CONF_LABEL_ATOMIC_COPY, true);
Assert.assertTrue(fs.exists(new Path(workPath)));
Assert.assertTrue(fs.exists(new Path(finalPath)));
try {
committer.commitJob(jobContext);
Assert.fail("Should not be able to atomic-commit to pre-existing path.");
} catch (Exception exception) {
Assert.assertTrue(fs.exists(new Path(workPath)));
Assert.assertTrue(fs.exists(new Path(finalPath)));
LOG.info("Atomic-commit Test pass.");
}
} catch (IOException e) {
LOG.error("Exception encountered while testing for atomic commit.", e);
Assert.fail("Atomic commit failure");
} finally {
TestDistCpUtils.delete(fs, workPath);
TestDistCpUtils.delete(fs, finalPath);
}
}
/**
* Set all the initial parameters needed in this class for connectivity out to Accumulo.
*
* @param context
*/
private void initialize(JobContext context) { // Configuration conf){
Configuration conf = context.getConfiguration();
try {
// output zoom level
log.info("Working from zoom level = " + zoomLevel);
if (zoomLevel == -1) {
zoomLevel = Integer.parseInt(conf.get(MrGeoAccumuloConstants.MRGEO_ACC_KEY_ZOOMLEVEL));
}
table = conf.get(MrGeoAccumuloConstants.MRGEO_ACC_KEY_OUTPUT_TABLE);
username = conf.get(MrGeoAccumuloConstants.MRGEO_ACC_KEY_USER);
instanceName = conf.get(MrGeoAccumuloConstants.MRGEO_ACC_KEY_INSTANCE);
zooKeepers = conf.get(MrGeoAccumuloConstants.MRGEO_ACC_KEY_ZOOKEEPERS);
String pl = conf.get(MrGeoConstants.MRGEO_PROTECTION_LEVEL);
if (pl != null) {
colViz = new ColumnVisibility(pl);
} else if (colViz == null) {
vizStr = conf.get(MrGeoAccumuloConstants.MRGEO_ACC_KEY_VIZ);
if (vizStr == null) {
colViz = new ColumnVisibility();
} else {
colViz = new ColumnVisibility(vizStr);
}
}
password = conf.get(MrGeoAccumuloConstants.MRGEO_ACC_KEY_PASSWORD);
String isEnc = conf.get(MrGeoAccumuloConstants.MRGEO_ACC_KEY_PWENCODED64, "false");
if (isEnc.equalsIgnoreCase("true")) {
password = Base64Utils.decodeToString(password);
}
if (_innerFormat != null) {
return;
}
_innerFormat = AccumuloOutputFormat.class.newInstance();
AuthenticationToken token = new PasswordToken(password.getBytes());
// log.info("Setting output with: u = " + username);
// log.info("Setting output with: p = " + password);
// log.info("Setting output with: i = " + instanceName);
// log.info("Setting output with: z = " + zooKeepers);
boolean connSet = ConfiguratorBase.isConnectorInfoSet(AccumuloOutputFormat.class, conf);
if (!connSet) {
// job not always available - do it how Accumulo does it
OutputConfigurator.setConnectorInfo(AccumuloOutputFormat.class, conf, username, token);
ClientConfiguration cc = ClientConfiguration.loadDefault().withInstance(instanceName);
cc.setProperty(ClientProperty.INSTANCE_ZK_HOST, zooKeepers);
OutputConfigurator.setZooKeeperInstance(AccumuloOutputFormat.class, conf, cc);
OutputConfigurator.setDefaultTableName(AccumuloOutputFormat.class, conf, table);
OutputConfigurator.setCreateTables(AccumuloOutputFormat.class, conf, true);
outputInfoSet = true;
}
} catch (InstantiationException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IllegalAccessException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (AccumuloSecurityException ase) {
ase.printStackTrace();
} catch (ClassNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
} // end initialize
/**
* Check for validity of the output-specification for the job.
*
* @param context information about the job
* @throws IOException when output should not be attempted
*/
@Override
public void checkOutputSpecs(JobContext context) {
checkOutputSpecs(context.getConfiguration());
}
