Examples with HBackupFileSystem org.apache.hadoop.hbase.backup.HBackupFileSystem used on opensource projects

Example 1 with HBackupFileSystem

use of org.apache.hadoop.hbase.backup.HBackupFileSystem in project hbase by apache.

the class BackupUtils method copyTableRegionInfo.

/**
 * copy out Table RegionInfo into incremental backup image need to consider move this logic into
 * HBackupFileSystem
 * @param conn connection
 * @param backupInfo backup info
 * @param conf configuration
 * @throws IOException exception
 */
public static void copyTableRegionInfo(Connection conn, BackupInfo backupInfo, Configuration conf) throws IOException {
    Path rootDir = CommonFSUtils.getRootDir(conf);
    FileSystem fs = rootDir.getFileSystem(conf);
    // info files in the correct directory structure
    try (Admin admin = conn.getAdmin()) {
        for (TableName table : backupInfo.getTables()) {
            if (!admin.tableExists(table)) {
                LOG.warn("Table " + table + " does not exists, skipping it.");
                continue;
            }
            TableDescriptor orig = FSTableDescriptors.getTableDescriptorFromFs(fs, rootDir, table);
            // write a copy of descriptor to the target directory
            Path target = new Path(backupInfo.getTableBackupDir(table));
            FileSystem targetFs = target.getFileSystem(conf);
            FSTableDescriptors descriptors = new FSTableDescriptors(targetFs, CommonFSUtils.getRootDir(conf));
            descriptors.createTableDescriptorForTableDirectory(target, orig, false);
            LOG.debug("Attempting to copy table info for:" + table + " target: " + target + " descriptor: " + orig);
            LOG.debug("Finished copying tableinfo.");
            List<RegionInfo> regions = MetaTableAccessor.getTableRegions(conn, table);
            // For each region, write the region info to disk
            LOG.debug("Starting to write region info for table " + table);
            for (RegionInfo regionInfo : regions) {
                Path regionDir = FSUtils.getRegionDirFromTableDir(new Path(backupInfo.getTableBackupDir(table)), regionInfo);
                regionDir = new Path(backupInfo.getTableBackupDir(table), regionDir.getName());
                writeRegioninfoOnFilesystem(conf, targetFs, regionDir, regionInfo);
            }
            LOG.debug("Finished writing region info for table " + table);
        }
    }
}