public HdfsDirectory(Path hdfsDirPath, Configuration configuration) throws IOException {
setLockFactory(NoLockFactory.getNoLockFactory());
this.hdfsDirPath = hdfsDirPath;
this.configuration = configuration;
fileSystem = FileSystem.newInstance(hdfsDirPath.toUri(), configuration);
while (true) {
try {
if (!fileSystem.exists(hdfsDirPath)) {
boolean success = fileSystem.mkdirs(hdfsDirPath);
if (!success) {
throw new RuntimeException("Could not create directory: " + hdfsDirPath);
}
} else {
fileSystem.mkdirs(hdfsDirPath); // check for safe mode
}
break;
} catch (RemoteException e) {
if (e.getClassName().equals("org.apache.hadoop.hdfs.server.namenode.SafeModeException")) {
LOG.warn("The NameNode is in SafeMode - Solr will wait 5 seconds and try again.");
try {
Thread.sleep(5000);
} catch (InterruptedException e1) {
Thread.interrupted();
}
continue;
}
org.apache.solr.util.IOUtils.closeQuietly(fileSystem);
throw new RuntimeException("Problem creating directory: " + hdfsDirPath, e);
} catch (Exception e) {
org.apache.solr.util.IOUtils.closeQuietly(fileSystem);
throw new RuntimeException("Problem creating directory: " + hdfsDirPath, e);
}
}
}
@Override
public boolean exists(String path) {
Path hdfsDirPath = new Path(path);
Configuration conf = getConf();
FileSystem fileSystem = null;
try {
fileSystem = FileSystem.get(hdfsDirPath.toUri(), conf);
return fileSystem.exists(hdfsDirPath);
} catch (IOException e) {
LOG.error("Error checking if hdfs path exists", e);
throw new RuntimeException("Error checking if hdfs path exists", e);
} finally {
IOUtils.closeQuietly(fileSystem);
}
}
public HdfsDirectory(Path hdfsDirPath, Configuration configuration) throws IOException {
assert hdfsDirPath.toString().startsWith("hdfs:/") : hdfsDirPath.toString();
setLockFactory(NoLockFactory.getNoLockFactory());
this.hdfsDirPath = hdfsDirPath;
this.configuration = configuration;
fileSystem = FileSystem.newInstance(hdfsDirPath.toUri(), configuration);
try {
if (!fileSystem.exists(hdfsDirPath)) {
fileSystem.mkdirs(hdfsDirPath);
}
} catch (Exception e) {
org.apache.solr.util.IOUtils.closeQuietly(fileSystem);
throw new RuntimeException("Problem creating directory: " + hdfsDirPath, e);
}
}
protected synchronized void removeDirectory(CacheValue cacheValue) throws IOException {
Configuration conf = getConf();
FileSystem fileSystem = null;
try {
fileSystem = FileSystem.get(new URI(cacheValue.path), conf);
boolean success = fileSystem.delete(new Path(cacheValue.path), true);
if (!success) {
throw new RuntimeException("Could not remove directory");
}
} catch (Exception e) {
LOG.error("Could not remove directory", e);
throw new SolrException(ErrorCode.SERVER_ERROR, "Could not remove directory", e);
} finally {
IOUtils.closeQuietly(fileSystem);
}
}