org.apache.hadoop.hdfs.protocol.proto.DataTransferProtos.CachingStrategyProto Java Examples

The following examples show how to use org.apache.hadoop.hdfs.protocol.proto.DataTransferProtos.CachingStrategyProto. You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.
Example #1
Source File: Sender.java    From hadoop with Apache License 2.0 5 votes vote down vote up 
static private CachingStrategyProto getCachingStrategy(CachingStrategy cachingStrategy) {
  CachingStrategyProto.Builder builder = CachingStrategyProto.newBuilder();
  if (cachingStrategy.getReadahead() != null) {
    builder.setReadahead(cachingStrategy.getReadahead().longValue());
  }
  if (cachingStrategy.getDropBehind() != null) {
    builder.setDropBehind(cachingStrategy.getDropBehind().booleanValue());
  }
  return builder.build();
}
Example #2
Source File: Receiver.java    From hadoop with Apache License 2.0 5 votes vote down vote up 
static private CachingStrategy getCachingStrategy(CachingStrategyProto strategy) {
  Boolean dropBehind = strategy.hasDropBehind() ?
      strategy.getDropBehind() : null;
  Long readahead = strategy.hasReadahead() ?
      strategy.getReadahead() : null;
  return new CachingStrategy(dropBehind, readahead);
}
Example #3
Source File: Sender.java    From big-c with Apache License 2.0 5 votes vote down vote up 
static private CachingStrategyProto getCachingStrategy(CachingStrategy cachingStrategy) {
  CachingStrategyProto.Builder builder = CachingStrategyProto.newBuilder();
  if (cachingStrategy.getReadahead() != null) {
    builder.setReadahead(cachingStrategy.getReadahead().longValue());
  }
  if (cachingStrategy.getDropBehind() != null) {
    builder.setDropBehind(cachingStrategy.getDropBehind().booleanValue());
  }
  return builder.build();
}
Example #4
Source File: Receiver.java    From big-c with Apache License 2.0 5 votes vote down vote up 
static private CachingStrategy getCachingStrategy(CachingStrategyProto strategy) {
  Boolean dropBehind = strategy.hasDropBehind() ?
      strategy.getDropBehind() : null;
  Long readahead = strategy.hasReadahead() ?
      strategy.getReadahead() : null;
  return new CachingStrategy(dropBehind, readahead);
}
Example #5
Source File: FanOutOneBlockAsyncDFSOutputHelper.java    From hbase with Apache License 2.0 4 votes vote down vote up 
private static List<Future<Channel>> connectToDataNodes(Configuration conf, DFSClient client,
    String clientName, LocatedBlock locatedBlock, long maxBytesRcvd, long latestGS,
    BlockConstructionStage stage, DataChecksum summer, EventLoopGroup eventLoopGroup,
    Class<? extends Channel> channelClass) {
  StorageType[] storageTypes = locatedBlock.getStorageTypes();
  DatanodeInfo[] datanodeInfos = locatedBlock.getLocations();
  boolean connectToDnViaHostname =
      conf.getBoolean(DFS_CLIENT_USE_DN_HOSTNAME, DFS_CLIENT_USE_DN_HOSTNAME_DEFAULT);
  int timeoutMs = conf.getInt(DFS_CLIENT_SOCKET_TIMEOUT_KEY, READ_TIMEOUT);
  ExtendedBlock blockCopy = new ExtendedBlock(locatedBlock.getBlock());
  blockCopy.setNumBytes(locatedBlock.getBlockSize());
  ClientOperationHeaderProto header = ClientOperationHeaderProto.newBuilder()
    .setBaseHeader(BaseHeaderProto.newBuilder().setBlock(PBHelperClient.convert(blockCopy))
      .setToken(PBHelperClient.convert(locatedBlock.getBlockToken())))
    .setClientName(clientName).build();
  ChecksumProto checksumProto = DataTransferProtoUtil.toProto(summer);
  OpWriteBlockProto.Builder writeBlockProtoBuilder = OpWriteBlockProto.newBuilder()
      .setHeader(header).setStage(OpWriteBlockProto.BlockConstructionStage.valueOf(stage.name()))
      .setPipelineSize(1).setMinBytesRcvd(locatedBlock.getBlock().getNumBytes())
      .setMaxBytesRcvd(maxBytesRcvd).setLatestGenerationStamp(latestGS)
      .setRequestedChecksum(checksumProto)
      .setCachingStrategy(CachingStrategyProto.newBuilder().setDropBehind(true).build());
  List<Future<Channel>> futureList = new ArrayList<>(datanodeInfos.length);
  for (int i = 0; i < datanodeInfos.length; i++) {
    DatanodeInfo dnInfo = datanodeInfos[i];
    StorageType storageType = storageTypes[i];
    Promise<Channel> promise = eventLoopGroup.next().newPromise();
    futureList.add(promise);
    String dnAddr = dnInfo.getXferAddr(connectToDnViaHostname);
    new Bootstrap().group(eventLoopGroup).channel(channelClass)
        .option(CONNECT_TIMEOUT_MILLIS, timeoutMs).handler(new ChannelInitializer<Channel>() {

          @Override
          protected void initChannel(Channel ch) throws Exception {
            // we need to get the remote address of the channel so we can only move on after
            // channel connected. Leave an empty implementation here because netty does not allow
            // a null handler.
          }
        }).connect(NetUtils.createSocketAddr(dnAddr)).addListener(new ChannelFutureListener() {

          @Override
          public void operationComplete(ChannelFuture future) throws Exception {
            if (future.isSuccess()) {
              initialize(conf, future.channel(), dnInfo, storageType, writeBlockProtoBuilder,
                timeoutMs, client, locatedBlock.getBlockToken(), promise);
            } else {
              promise.tryFailure(future.cause());
            }
          }
        });
  }
  return futureList;
}