/** Deletes a table's directory from the file system if exists. Used in unit tests. */
public static void deleteTableDescriptorIfExists(String tableName, Configuration conf)
throws IOException {
FileSystem fs = FSUtils.getCurrentFileSystem(conf);
FileStatus status = getTableInfoPath(fs, FSUtils.getRootDir(conf), tableName);
// The below deleteDirectory works for either file or directory.
if (status != null && fs.exists(status.getPath())) {
FSUtils.deleteDirectory(fs, status.getPath());
}
}
@Override
public void start(CoprocessorEnvironment e) throws IOException {
region = (HRegion) ((RegionCoprocessorEnvironment) e).getRegion();
String[] name = region.getTableDesc().getNameAsString().split(":");
if (name.length == 2) {
namespace = name[0];
tableName = name[1];
} else {
tableName = name[0];
}
regionName = region.getRegionInfo().getEncodedName();
path = HConfiguration.getConfiguration().getBackupPath() + "/" + tableName + "/" + regionName;
conf = HConfiguration.unwrapDelegate();
rootDir = FSUtils.getRootDir(conf);
fs = FSUtils.getCurrentFileSystem(conf);
backupDir =
new Path(
rootDir,
BackupRestoreConstants.BACKUP_DIR + "/data/splice/" + tableName + "/" + regionName);
preparing = false;
}
/**
* Create new HTableDescriptor in HDFS. Happens when we are creating table. If forceCreation is
* true then even if previous table descriptor is present it will be overwritten
*
* @param htableDescriptor
* @param conf
* @param forceCreation True if we are to overwrite existing file.
*/
static boolean createTableDescriptor(
final HTableDescriptor htableDescriptor, final Configuration conf, boolean forceCreation)
throws IOException {
FileSystem fs = FSUtils.getCurrentFileSystem(conf);
return createTableDescriptor(fs, FSUtils.getRootDir(conf), htableDescriptor, forceCreation);
}