Examples with ReplicaBeingWritten org.apache.hadoop.hdfs.server.datanode.ReplicaBeingWritten used on opensource projects

Example 6 with ReplicaBeingWritten

use of org.apache.hadoop.hdfs.server.datanode.ReplicaBeingWritten in project hadoop by apache.

the class TestAddStripedBlocks method testAddUCReplica.

/**
   * Test BlockInfoStripedUnderConstruction#addReplicaIfNotPresent in different
   * scenarios.
   */
@Test
public void testAddUCReplica() throws Exception {
    final Path file = new Path("/file1");
    final List<String> storageIDs = new ArrayList<>();
    // create an empty file
    FSDataOutputStream out = null;
    try {
        out = dfs.create(file, (short) 1);
        // 1. create the UC striped block
        FSDirectory fsdir = cluster.getNamesystem().getFSDirectory();
        INodeFile fileNode = fsdir.getINode4Write(file.toString()).asFile();
        cluster.getNamesystem().getAdditionalBlock(file.toString(), fileNode.getId(), dfs.getClient().getClientName(), null, null, null, null);
        BlockInfo lastBlock = fileNode.getLastBlock();
        DatanodeStorageInfo[] locs = lastBlock.getUnderConstructionFeature().getExpectedStorageLocations();
        byte[] indices = lastBlock.getUnderConstructionFeature().getBlockIndices();
        Assert.assertEquals(groupSize, locs.length);
        Assert.assertEquals(groupSize, indices.length);
        // 2. mimic incremental block reports and make sure the uc-replica list in
        // the BlockInfoUCStriped is correct
        int i = 0;
        for (DataNode dn : cluster.getDataNodes()) {
            final Block block = new Block(lastBlock.getBlockId() + i++, 0, lastBlock.getGenerationStamp());
            DatanodeStorage storage = new DatanodeStorage(UUID.randomUUID().toString());
            storageIDs.add(storage.getStorageID());
            StorageReceivedDeletedBlocks[] reports = DFSTestUtil.makeReportForReceivedBlock(block, BlockStatus.RECEIVING_BLOCK, storage);
            for (StorageReceivedDeletedBlocks report : reports) {
                cluster.getNamesystem().processIncrementalBlockReport(dn.getDatanodeId(), report);
            }
        }
        // make sure lastBlock is correct and the storages have been updated
        locs = lastBlock.getUnderConstructionFeature().getExpectedStorageLocations();
        indices = lastBlock.getUnderConstructionFeature().getBlockIndices();
        Assert.assertEquals(groupSize, locs.length);
        Assert.assertEquals(groupSize, indices.length);
        for (DatanodeStorageInfo newstorage : locs) {
            Assert.assertTrue(storageIDs.contains(newstorage.getStorageID()));
        }
    } finally {
        IOUtils.cleanup(null, out);
    }
    // 3. restart the namenode. mimic the full block reports and check the
    // uc-replica list again
    cluster.restartNameNode(true);
    final String bpId = cluster.getNamesystem().getBlockPoolId();
    INodeFile fileNode = cluster.getNamesystem().getFSDirectory().getINode4Write(file.toString()).asFile();
    BlockInfo lastBlock = fileNode.getLastBlock();
    int i = groupSize - 1;
    for (DataNode dn : cluster.getDataNodes()) {
        String storageID = storageIDs.get(i);
        final Block block = new Block(lastBlock.getBlockId() + i--, lastBlock.getGenerationStamp(), 0);
        DatanodeStorage storage = new DatanodeStorage(storageID);
        List<ReplicaBeingWritten> blocks = new ArrayList<>();
        ReplicaBeingWritten replica = new ReplicaBeingWritten(block, null, null, null);
        blocks.add(replica);
        BlockListAsLongs bll = BlockListAsLongs.encode(blocks);
        StorageBlockReport[] reports = { new StorageBlockReport(storage, bll) };
        cluster.getNameNodeRpc().blockReport(dn.getDNRegistrationForBP(bpId), bpId, reports, new BlockReportContext(1, 0, System.nanoTime(), 0, true));
    }
    DatanodeStorageInfo[] locs = lastBlock.getUnderConstructionFeature().getExpectedStorageLocations();
    byte[] indices = lastBlock.getUnderConstructionFeature().getBlockIndices();
    Assert.assertEquals(groupSize, locs.length);
    Assert.assertEquals(groupSize, indices.length);
    for (i = 0; i < groupSize; i++) {
        Assert.assertEquals(storageIDs.get(i), locs[groupSize - 1 - i].getStorageID());
        Assert.assertEquals(groupSize - i - 1, indices[i]);
    }
}

Example 7 with ReplicaBeingWritten

use of org.apache.hadoop.hdfs.server.datanode.ReplicaBeingWritten in project hadoop by apache.

the class TestBlockListAsLongs method testMix.

@Test
public void testMix() {
    BlockListAsLongs blocks = checkReport(new FinalizedReplica(b1, null, null), new FinalizedReplica(b2, null, null), new ReplicaBeingWritten(b3, null, null, null), new ReplicaWaitingToBeRecovered(b4, null, null));
    assertArrayEquals(new long[] { 2, 2, 1, 11, 111, 2, 22, 222, -1, -1, -1, 3, 33, 333, ReplicaState.RBW.getValue(), 4, 44, 444, ReplicaState.RWR.getValue() }, blocks.getBlockListAsLongs());
}