Package org.apache.hadoop.hdfs.server.blockmanagement

Examples of org.apache.hadoop.hdfs.server.blockmanagement.DatanodeStorageInfo$BlockIterator

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    } finally {
      readUnlock();
    }

    // choose targets for the new block to be allocated.
    final DatanodeStorageInfo targets[] = getBlockManager().chooseTarget(
        src, replication, clientNode, excludedNodes, blockSize, favoredNodes);

    // Part II.
    // Allocate a new block, add it to the INode and the BlocksMap.
    Block newBlock = null;
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    } finally {
      readUnlock();
    }

    // choose targets for the new block to be allocated.
    final DatanodeStorageInfo targets[] = getBlockManager().chooseTarget(
        src, replication, clientNode, excludedNodes, blockSize, favoredNodes);

    // Part II.
    // Allocate a new block, add it to the INode and the BlocksMap.
    Block newBlock = null;
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    // Send the report to the NN.
    cluster.getNameNodeRpc().blockReceivedAndDeleted(dn0Reg, poolId, reports);

    // Make sure that the NN has learned of the new storage.
    DatanodeStorageInfo storageInfo = cluster.getNameNode()
                                             .getNamesystem()
                                             .getBlockManager()
                                             .getDatanodeManager()
                                             .getDatanode(dn0.getDatanodeId())
                                             .getStorageInfo(newStorageUuid);
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    BlockInfoUnderConstruction ucBlock =
      (BlockInfoUnderConstruction)storedBlock;
    // We expect that the replica with the most recent heart beat will be
    // the one to be in charge of the synchronization / recovery protocol.
    final DatanodeStorageInfo[] storages = ucBlock.getExpectedStorageLocations();
    DatanodeStorageInfo expectedPrimary = storages[0];
    long mostRecentLastUpdate = expectedPrimary.getDatanodeDescriptor().getLastUpdate();
    for (int i = 1; i < storages.length; i++) {
      final long lastUpdate = storages[i].getDatanodeDescriptor().getLastUpdate();
      if (lastUpdate > mostRecentLastUpdate) {
        expectedPrimary = storages[i];
        mostRecentLastUpdate = lastUpdate;
      }
    }
    return expectedPrimary.getDatanodeDescriptor();
  }
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    } finally {
      readUnlock();
    }

    // choose targets for the new block to be allocated.
    final DatanodeStorageInfo targets[] = getBlockManager().chooseTarget(
        src, replication, clientNode, excludedNodes, blockSize, favoredNodes);

    // Part II.
    // Allocate a new block, add it to the INode and the BlocksMap.
    Block newBlock = null;
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Related Classes of org.apache.hadoop.hdfs.server.blockmanagement.DatanodeStorageInfo$BlockIterator

  • org.apache.hadoop.dfs.BlocksMap.BlockInfo
  • org.apache.hadoop.hdfs.server.datanode.TestIncrementalBrVariations
  • org.apache.hadoop.hdfs.server.namenode.BlocksMap.BlockInfo
  • org.apache.hadoop.hdfs.server.namenode.FSNamesystem
  • org.apache.hadoop.hdfs.server.namenode.ha.TestPipelinesFailover
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