use of alluxio.master.file.options.CreateFileOptions in project alluxio by Alluxio.
the class InodeTree method createPath.
/**
* Creates a file or directory at path.
*
* @param inodePath the path
* @param options method options
* @return a {@link CreatePathResult} representing the modified inodes and created inodes during
* path creation
* @throws FileAlreadyExistsException when there is already a file at path if we want to create a
* directory there
* @throws BlockInfoException when blockSizeBytes is invalid
* @throws InvalidPathException when path is invalid, for example, (1) when there is nonexistent
* necessary parent directories and recursive is false, (2) when one of the necessary
* parent directories is actually a file
* @throws IOException if creating the path fails
* @throws FileDoesNotExistException if the parent of the path does not exist and the recursive
* option is false
*/
public CreatePathResult createPath(LockedInodePath inodePath, CreatePathOptions<?> options) throws FileAlreadyExistsException, BlockInfoException, InvalidPathException, IOException, FileDoesNotExistException {
AlluxioURI path = inodePath.getUri();
if (path.isRoot()) {
String errorMessage = ExceptionMessage.FILE_ALREADY_EXISTS.getMessage(path);
LOG.error(errorMessage);
throw new FileAlreadyExistsException(errorMessage);
}
if (options instanceof CreateFileOptions) {
CreateFileOptions fileOptions = (CreateFileOptions) options;
if (fileOptions.getBlockSizeBytes() < 1) {
throw new BlockInfoException("Invalid block size " + fileOptions.getBlockSizeBytes());
}
}
if (!(inodePath instanceof MutableLockedInodePath)) {
throw new InvalidPathException(ExceptionMessage.NOT_MUTABLE_INODE_PATH.getMessage(inodePath.getUri()));
}
LOG.debug("createPath {}", path);
TraversalResult traversalResult = traverseToInode(inodePath, LockMode.WRITE_PARENT);
InodeLockList lockList = traversalResult.getInodeLockList();
MutableLockedInodePath extensibleInodePath = (MutableLockedInodePath) inodePath;
String[] pathComponents = extensibleInodePath.getPathComponents();
String name = path.getName();
// pathIndex is the index into pathComponents where we start filling in the path from the inode.
int pathIndex = extensibleInodePath.getInodes().size();
if (pathIndex < pathComponents.length - 1) {
// Otherwise we add the remaining path components to the list of components to create.
if (!options.isRecursive()) {
final String msg = new StringBuilder().append("File ").append(path).append(" creation failed. Component ").append(pathIndex).append("(").append(pathComponents[pathIndex]).append(") does not exist").toString();
LOG.error("FileDoesNotExistException: {}", msg);
throw new FileDoesNotExistException(msg);
}
}
// The ancestor inode (parent or ancestor) of the target path.
Inode<?> ancestorInode = extensibleInodePath.getAncestorInode();
if (!ancestorInode.isDirectory()) {
throw new InvalidPathException("Could not traverse to parent directory of path " + path + ". Component " + pathComponents[pathIndex - 1] + " is not a directory.");
}
InodeDirectory currentInodeDirectory = (InodeDirectory) ancestorInode;
List<Inode<?>> createdInodes = new ArrayList<>();
List<Inode<?>> modifiedInodes = new ArrayList<>();
// These are inodes that already exist, that should be journaled as persisted.
List<Inode<?>> existingNonPersisted = new ArrayList<>();
// These are inodes to mark as persisted at the end of this method.
List<Inode<?>> toPersistDirectories = new ArrayList<>();
if (options.isPersisted()) {
// Directory persistence will not happen until the end of this method.
toPersistDirectories.addAll(traversalResult.getNonPersisted());
existingNonPersisted.addAll(traversalResult.getNonPersisted());
}
if (pathIndex < (pathComponents.length - 1) || currentInodeDirectory.getChild(name) == null) {
// (1) There are components in parent paths that need to be created. Or
// (2) The last component of the path needs to be created.
// In these two cases, the last traversed Inode will be modified.
modifiedInodes.add(currentInodeDirectory);
}
// TODO(gpang): We may not have to lock the newly created inodes if the last inode is write
// locked. This could improve performance. Further investigation is needed.
// Fill in the ancestor directories that were missing.
// NOTE, we set the mode of missing ancestor directories to be the default value, rather
// than inheriting the option of the final file to create, because it may not have
// "execute" permission.
CreateDirectoryOptions missingDirOptions = CreateDirectoryOptions.defaults().setMountPoint(false).setPersisted(options.isPersisted()).setOwner(options.getOwner()).setGroup(options.getGroup());
for (int k = pathIndex; k < (pathComponents.length - 1); k++) {
InodeDirectory dir = InodeDirectory.create(mDirectoryIdGenerator.getNewDirectoryId(), currentInodeDirectory.getId(), pathComponents[k], missingDirOptions);
// Lock the newly created inode before subsequent operations, and add it to the lock group.
lockList.lockWriteAndCheckNameAndParent(dir, currentInodeDirectory, pathComponents[k]);
dir.setPinned(currentInodeDirectory.isPinned());
currentInodeDirectory.addChild(dir);
currentInodeDirectory.setLastModificationTimeMs(options.getOperationTimeMs());
if (options.isPersisted()) {
toPersistDirectories.add(dir);
}
createdInodes.add(dir);
mInodes.add(dir);
currentInodeDirectory = dir;
}
// Create the final path component. First we need to make sure that there isn't already a file
// here with that name. If there is an existing file that is a directory and we're creating a
// directory, update persistence property of the directories if needed, otherwise, throw
// FileAlreadyExistsException unless options.allowExists is true.
Inode<?> lastInode = currentInodeDirectory.getChild(name);
if (lastInode != null) {
// Lock the last inode before subsequent operations, and add it to the lock group.
lockList.lockWriteAndCheckNameAndParent(lastInode, currentInodeDirectory, name);
if (lastInode.isDirectory() && options instanceof CreateDirectoryOptions && !lastInode.isPersisted() && options.isPersisted()) {
// The final path component already exists and is not persisted, so it should be added
// to the non-persisted Inodes of traversalResult.
existingNonPersisted.add(lastInode);
toPersistDirectories.add(lastInode);
} else if (!lastInode.isDirectory() || !(options instanceof CreateDirectoryOptions && ((CreateDirectoryOptions) options).isAllowExists())) {
String errorMessage = ExceptionMessage.FILE_ALREADY_EXISTS.getMessage(path);
LOG.error(errorMessage);
throw new FileAlreadyExistsException(errorMessage);
}
} else {
if (options instanceof CreateDirectoryOptions) {
CreateDirectoryOptions directoryOptions = (CreateDirectoryOptions) options;
lastInode = InodeDirectory.create(mDirectoryIdGenerator.getNewDirectoryId(), currentInodeDirectory.getId(), name, directoryOptions);
// Lock the created inode before subsequent operations, and add it to the lock group.
lockList.lockWriteAndCheckNameAndParent(lastInode, currentInodeDirectory, name);
if (directoryOptions.isPersisted()) {
toPersistDirectories.add(lastInode);
}
lastInode.setPinned(currentInodeDirectory.isPinned());
} else if (options instanceof CreateFileOptions) {
CreateFileOptions fileOptions = (CreateFileOptions) options;
lastInode = InodeFile.create(mContainerIdGenerator.getNewContainerId(), currentInodeDirectory.getId(), name, System.currentTimeMillis(), fileOptions);
// Lock the created inode before subsequent operations, and add it to the lock group.
lockList.lockWriteAndCheckNameAndParent(lastInode, currentInodeDirectory, name);
if (currentInodeDirectory.isPinned()) {
// Update set of pinned file ids.
mPinnedInodeFileIds.add(lastInode.getId());
}
lastInode.setPinned(currentInodeDirectory.isPinned());
}
createdInodes.add(lastInode);
mInodes.add(lastInode);
currentInodeDirectory.addChild(lastInode);
currentInodeDirectory.setLastModificationTimeMs(options.getOperationTimeMs());
}
// we mark it as persisted.
for (Inode<?> inode : toPersistDirectories) {
MountTable.Resolution resolution = mMountTable.resolve(getPath(inode));
String ufsUri = resolution.getUri().toString();
UnderFileSystem ufs = resolution.getUfs();
MkdirsOptions mkdirsOptions = MkdirsOptions.defaults().setCreateParent(false).setOwner(inode.getOwner()).setGroup(inode.getGroup()).setMode(new Mode(inode.getMode()));
if (ufs.isDirectory(ufsUri) || ufs.mkdirs(ufsUri, mkdirsOptions)) {
inode.setPersistenceState(PersistenceState.PERSISTED);
}
}
// Extend the inodePath with the created inodes.
extensibleInodePath.getInodes().addAll(createdInodes);
LOG.debug("createFile: File Created: {} parent: {}", lastInode, currentInodeDirectory);
return new CreatePathResult(modifiedInodes, createdInodes, existingNonPersisted);
}
use of alluxio.master.file.options.CreateFileOptions in project alluxio by Alluxio.
the class LineageMaster method createLineage.
/**
* Creates a lineage. It creates a new file for each output file.
*
* @param inputFiles the input files
* @param outputFiles the output files
* @param job the job
* @return the id of the created lineage
* @throws InvalidPathException if the path to the input file is invalid
* @throws FileAlreadyExistsException if the output file already exists
* @throws BlockInfoException if fails to create the output file
* @throws IOException if the creation of a file fails
* @throws AccessControlException if the permission check fails
* @throws FileDoesNotExistException if any of the input files do not exist
*/
public synchronized long createLineage(List<AlluxioURI> inputFiles, List<AlluxioURI> outputFiles, Job job) throws InvalidPathException, FileAlreadyExistsException, BlockInfoException, IOException, AccessControlException, FileDoesNotExistException {
List<Long> inputAlluxioFiles = new ArrayList<>();
for (AlluxioURI inputFile : inputFiles) {
long fileId;
fileId = mFileSystemMaster.getFileId(inputFile);
if (fileId == IdUtils.INVALID_FILE_ID) {
throw new FileDoesNotExistException(ExceptionMessage.LINEAGE_INPUT_FILE_NOT_EXIST.getMessage(inputFile));
}
inputAlluxioFiles.add(fileId);
}
// create output files
List<Long> outputAlluxioFiles = new ArrayList<>();
for (AlluxioURI outputFile : outputFiles) {
long fileId;
// TODO(yupeng): delete the placeholder files if the creation fails.
// Create the file initialized with block size 1KB as placeholder.
CreateFileOptions options = CreateFileOptions.defaults().setRecursive(true).setBlockSizeBytes(Constants.KB);
fileId = mFileSystemMaster.createFile(outputFile, options);
outputAlluxioFiles.add(fileId);
}
LOG.info("Create lineage of input:{}, output:{}, job:{}", inputAlluxioFiles, outputAlluxioFiles, job);
long lineageId = mLineageStore.createLineage(inputAlluxioFiles, outputAlluxioFiles, job);
writeJournalEntry(mLineageIdGenerator.toJournalEntry());
writeJournalEntry(mLineageStore.getLineage(lineageId).toJournalEntry());
flushJournal();
return lineageId;
}
use of alluxio.master.file.options.CreateFileOptions in project alluxio by Alluxio.
the class FileSystemMasterTest method setLargerTtlForFileWithTtl.
/**
* Tests that a file has not been deleted after the TTL has been reset to a valid value.
*/
@Test
public void setLargerTtlForFileWithTtl() throws Exception {
CreateFileOptions options = CreateFileOptions.defaults().setBlockSizeBytes(Constants.KB).setRecursive(true).setTtl(0);
long fileId = mFileSystemMaster.createFile(NESTED_FILE_URI, options);
Assert.assertEquals(fileId, mFileSystemMaster.getFileInfo(NESTED_FILE_URI).getFileId());
mFileSystemMaster.setAttribute(NESTED_FILE_URI, SetAttributeOptions.defaults().setTtl(Constants.HOUR_MS));
HeartbeatScheduler.execute(HeartbeatContext.MASTER_TTL_CHECK);
// TTL is reset to 1 hour, the file should not be deleted during last TTL check.
Assert.assertEquals(fileId, mFileSystemMaster.getFileInfo(fileId).getFileId());
}
use of alluxio.master.file.options.CreateFileOptions in project alluxio by Alluxio.
the class FileSystemMasterTest method renameToNonExistentParent.
@Test
public void renameToNonExistentParent() throws Exception {
CreateFileOptions options = CreateFileOptions.defaults().setBlockSizeBytes(Constants.KB).setRecursive(true);
mFileSystemMaster.createFile(NESTED_URI, options);
try {
mFileSystemMaster.rename(NESTED_URI, new AlluxioURI("/testDNE/b"), RenameOptions.defaults());
Assert.fail("Rename to a non-existent parent path should not succeed.");
} catch (FileDoesNotExistException e) {
// Expected case
}
}
use of alluxio.master.file.options.CreateFileOptions in project alluxio by Alluxio.
the class FileSystemMasterTest method renameUnderNonexistingDir.
/**
* Tests that an exception is thrown when trying to create a file in a non-existing directory
* without setting the {@code recursive} flag.
*/
@Test
public void renameUnderNonexistingDir() throws Exception {
mThrown.expect(FileDoesNotExistException.class);
mThrown.expectMessage(ExceptionMessage.PATH_DOES_NOT_EXIST.getMessage("/nested/test"));
CreateFileOptions options = CreateFileOptions.defaults().setBlockSizeBytes(Constants.KB);
mFileSystemMaster.createFile(TEST_URI, options);
// nested dir
mFileSystemMaster.rename(TEST_URI, NESTED_FILE_URI, RenameOptions.defaults());
}
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