Example usage for org.apache.hadoop.hdfs.server.blockmanagement BlockManager getBlockCollection

Introduction

In this page you can find the example usage for org.apache.hadoop.hdfs.server.blockmanagement BlockManager getBlockCollection.

Prototype

BlockCollection getBlockCollection(BlockInfo b) 

Source Link

Usage

From source file:backup.namenode.NameNodeBackupBlockCheckProcessor.java

License:Apache License

private void restoreAll(BackupReportWriter writer, ExtendedBlockEnum<NullWritable> buEnum) throws Exception {
    writer.startRestoreAll();/*from   w ww . j  a  v a  2s .c o  m*/
    ExtendedBlock block;
    BlockManager blockManager = namenode.getNamesystem().getBlockManager();
    while ((block = buEnum.next()) != null) {
        org.apache.hadoop.hdfs.protocol.ExtendedBlock heb = BackupUtil.toHadoop(block);
        BlockCollection blockCollection = blockManager.getBlockCollection(heb.getLocalBlock());
        if (blockCollection == null) {
            try {
                writer.restoreBlock(block);
                processor.requestRestore(block);
            } catch (Exception e) {
                LOG.error("Unknown error while trying to restore block " + block, e);
                writer.restoreBlockError(block);
            }
        }
    }
    writer.completeRestoreAll();
}

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