Example usage for io.netty.bootstrap ServerBootstrap childOption

Introduction

In this page you can find the example usage for io.netty.bootstrap ServerBootstrap childOption.

Prototype

public <T> ServerBootstrap childOption(ChannelOption<T> childOption, T value)

Source Link

Document

Allow to specify a ChannelOption which is used for the Channel instances once they get created (after the acceptor accepted the Channel ).

Usage

From source file:tachyon.worker.netty.NettyDataServer.java

License:Apache License

private ServerBootstrap createBootstrap() {
    final ServerBootstrap boot = createBootstrapOfType(
            mTachyonConf.getEnum(Constants.WORKER_NETWORK_NETTY_CHANNEL, ChannelType.class));

    // use pooled buffers
    boot.option(ChannelOption.ALLOCATOR, PooledByteBufAllocator.DEFAULT);
    boot.childOption(ChannelOption.ALLOCATOR, PooledByteBufAllocator.DEFAULT);

    // set write buffer
    // this is the default, but its recommended to set it in case of change in future netty.
    boot.childOption(ChannelOption.WRITE_BUFFER_HIGH_WATER_MARK,
            (int) mTachyonConf.getBytes(Constants.WORKER_NETTY_WATERMARK_HIGH));
    boot.childOption(ChannelOption.WRITE_BUFFER_LOW_WATER_MARK,
            (int) mTachyonConf.getBytes(Constants.WORKER_NETTY_WATERMARK_LOW));

    // more buffer settings on Netty socket option, one can tune them by specifying
    // properties, e.g.:
    // tachyon.worker.network.netty.backlog=50
    // tachyon.worker.network.netty.buffer.send=64KB
    // tachyon.worker.network.netty.buffer.receive=64KB
    if (mTachyonConf.containsKey(Constants.WORKER_NETTY_BACKLOG)) {
        boot.option(ChannelOption.SO_BACKLOG, mTachyonConf.getInt(Constants.WORKER_NETTY_BACKLOG));
    }/*  w ww.j  a va2s. co m*/
    if (mTachyonConf.containsKey(Constants.WORKER_NETTY_SEND_BUFFER)) {
        boot.option(ChannelOption.SO_SNDBUF, (int) mTachyonConf.getBytes(Constants.WORKER_NETTY_SEND_BUFFER));
    }
    if (mTachyonConf.containsKey(Constants.WORKER_NETTY_RECEIVE_BUFFER)) {
        boot.option(ChannelOption.SO_RCVBUF,
                (int) mTachyonConf.getBytes(Constants.WORKER_NETTY_RECEIVE_BUFFER));
    }
    return boot;
}