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目前已经更新到了：

• Hadoop（已更完）
• HDFS（已更完）
• MapReduce（已更完）
• Hive（已更完）
• Flume（已更完）
• Sqoop（已更完）
• Zookeeper（已更完）
• HBase（已更完）
• Redis （已更完）
• Kafka（已更完）
• Spark（已更完）
• Flink（已更完）
• ClickHouse（已更完）
• Kudu（正在更新…）

章节内容

上节我们完成了如下的内容：

• Kudu 的基本介绍
• Kudu 的架构概述

安装准备

硬件准备

• 一台或者多台跑kudu-master。建议一个Master（无容错机制）、三个Master（允许一个节点出错）、五个Master（允许两个节点出错）
• 一台或者多台机器跑kudu-server。当需要使用副本，至少需要三个节点运行kudu-server服务。

操作系统

• Ubuntu云服务器（我的环境是三台小云服务器）
• 内核和文件系统支持 Hole Punching 选项。
• NTP 服务
• xfs or ext4 formatterd drivers

存储要求

• 尽量使用固态存储，显著提供kudu性能

环境说明

• 如果你使用的是CDH，需要ClouderaManager 5.4.3 及以上的版本。
• 三台云服务器，h121启动Master，h122和123启动TabletServer。

Dockerfile

https://github.com/apache/kudu/blob/master/docker/quickstart.yml

官方的配置文件为：

• 3个Master
• 4个TabletServer

# Licensed to the Apache Software Foundation (ASF) under one
# or more contributor license agreements.  See the NOTICE file
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# regarding copyright ownership.  The ASF licenses this file
# to you under the Apache License, Version 2.0 (the
# "License"); you may not use this file except in compliance
# with the License.  You may obtain a copy of the License at
#
#   http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
# KIND, either express or implied.  See the License for the
# specific language governing permissions and limitations
# under the License.
version: "3"
services:kudu-master-1:image: apache/kudu:${KUDU_QUICKSTART_VERSION:-latest}ports:- "7051:7051"- "8051:8051"command: ["master"]volumes:- kudu-master-1:/var/lib/kuduenvironment:- KUDU_MASTERS=kudu-master-1:7051,kudu-master-2:7151,kudu-master-3:7251# TODO: Use `host.docker.internal` instead of KUDU_QUICKSTART_IP when it# works on Linux (https://github.com/docker/for-linux/issues/264)- >MASTER_ARGS=--fs_wal_dir=/var/lib/kudu/master--rpc_bind_addresses=0.0.0.0:7051--rpc_advertised_addresses=${KUDU_QUICKSTART_IP:?Please set KUDU_QUICKSTART_IP environment variable}:7051--webserver_port=8051--webserver_advertised_addresses=${KUDU_QUICKSTART_IP}:8051--webserver_doc_root=/opt/kudu/www--stderrthreshold=0--use_hybrid_clock=false--unlock_unsafe_flags=truekudu-master-2:image: apache/kudu:${KUDU_QUICKSTART_VERSION:-latest}ports:- "7151:7151"- "8151:8151"command: ["master"]volumes:- kudu-master-2:/var/lib/kuduenvironment:- KUDU_MASTERS=kudu-master-1:7051,kudu-master-2:7151,kudu-master-3:7251- >MASTER_ARGS=--fs_wal_dir=/var/lib/kudu/master--rpc_bind_addresses=0.0.0.0:7151--rpc_advertised_addresses=${KUDU_QUICKSTART_IP}:7151--webserver_port=8151--webserver_advertised_addresses=${KUDU_QUICKSTART_IP}:8151--webserver_doc_root=/opt/kudu/www--stderrthreshold=0--use_hybrid_clock=false--unlock_unsafe_flags=truekudu-master-3:image: apache/kudu:${KUDU_QUICKSTART_VERSION:-latest}ports:- "7251:7251"- "8251:8251"command: ["master"]volumes:- kudu-master-3:/var/lib/kuduenvironment:- KUDU_MASTERS=kudu-master-1:7051,kudu-master-2:7151,kudu-master-3:7251- >MASTER_ARGS=--fs_wal_dir=/var/lib/kudu/master--rpc_bind_addresses=0.0.0.0:7251--rpc_advertised_addresses=${KUDU_QUICKSTART_IP}:7251--webserver_port=8251--webserver_advertised_addresses=${KUDU_QUICKSTART_IP}:8251--webserver_doc_root=/opt/kudu/www--stderrthreshold=0--use_hybrid_clock=false--unlock_unsafe_flags=truekudu-tserver-1:image: apache/kudu:${KUDU_QUICKSTART_VERSION:-latest}depends_on:- kudu-master-1- kudu-master-2- kudu-master-3ports:- "7050:7050"- "8050:8050"command: ["tserver"]volumes:- kudu-tserver-1:/var/lib/kuduenvironment:- KUDU_MASTERS=kudu-master-1:7051,kudu-master-2:7151,kudu-master-3:7251- >TSERVER_ARGS=--fs_wal_dir=/var/lib/kudu/tserver--rpc_bind_addresses=0.0.0.0:7050--rpc_advertised_addresses=${KUDU_QUICKSTART_IP}:7050--webserver_port=8050--webserver_advertised_addresses=${KUDU_QUICKSTART_IP}:8050--webserver_doc_root=/opt/kudu/www--stderrthreshold=0--use_hybrid_clock=false--unlock_unsafe_flags=truekudu-tserver-2:image: apache/kudu:${KUDU_QUICKSTART_VERSION:-latest}depends_on:- kudu-master-1- kudu-master-2- kudu-master-3ports:- "7150:7150"- "8150:8150"command: ["tserver"]volumes:- kudu-tserver-2:/var/lib/kuduenvironment:- KUDU_MASTERS=kudu-master-1:7051,kudu-master-2:7151,kudu-master-3:7251- >TSERVER_ARGS=--fs_wal_dir=/var/lib/kudu/tserver--rpc_bind_addresses=0.0.0.0:7150--rpc_advertised_addresses=${KUDU_QUICKSTART_IP}:7150--webserver_port=8150--webserver_advertised_addresses=${KUDU_QUICKSTART_IP}:8150--webserver_doc_root=/opt/kudu/www--stderrthreshold=0--use_hybrid_clock=false--unlock_unsafe_flags=truekudu-tserver-3:image: apache/kudu:${KUDU_QUICKSTART_VERSION:-latest}depends_on:- kudu-master-1- kudu-master-2- kudu-master-3ports:- "7250:7250"- "8250:8250"command: ["tserver"]volumes:- kudu-tserver-3:/var/lib/kuduenvironment:- KUDU_MASTERS=kudu-master-1:7051,kudu-master-2:7151,kudu-master-3:7251- >TSERVER_ARGS=--fs_wal_dir=/var/lib/kudu/tserver--rpc_bind_addresses=0.0.0.0:7250--rpc_advertised_addresses=${KUDU_QUICKSTART_IP}:7250--webserver_port=8250--webserver_advertised_addresses=${KUDU_QUICKSTART_IP}:8250--webserver_doc_root=/opt/kudu/www--stderrthreshold=0--use_hybrid_clock=false--unlock_unsafe_flags=truekudu-tserver-4:image: apache/kudu:${KUDU_QUICKSTART_VERSION:-latest}depends_on:- kudu-master-1- kudu-master-2- kudu-master-3ports:- "7350:7350"- "8350:8350"command: ["tserver"]volumes:- kudu-tserver-4:/var/lib/kuduenvironment:- KUDU_MASTERS=kudu-master-1:7051,kudu-master-2:7151,kudu-master-3:7251- >TSERVER_ARGS=--fs_wal_dir=/var/lib/kudu/tserver--rpc_bind_addresses=0.0.0.0:7350--rpc_advertised_addresses=${KUDU_QUICKSTART_IP}:7350--webserver_port=8350--webserver_advertised_addresses=${KUDU_QUICKSTART_IP}:8350--webserver_doc_root=/opt/kudu/www--stderrthreshold=0--use_hybrid_clock=false--unlock_unsafe_flags=truekudu-tserver-5:image: apache/kudu:${KUDU_QUICKSTART_VERSION:-latest}depends_on:- kudu-master-1- kudu-master-2- kudu-master-3ports:- "7450:7450"- "8450:8450"command: ["tserver"]volumes:- kudu-tserver-5:/var/lib/kuduenvironment:- KUDU_MASTERS=kudu-master-1:7051,kudu-master-2:7151,kudu-master-3:7251- >TSERVER_ARGS=--fs_wal_dir=/var/lib/kudu/tserver--rpc_bind_addresses=0.0.0.0:7450--rpc_advertised_addresses=${KUDU_QUICKSTART_IP}:7450--webserver_port=8450--webserver_advertised_addresses=${KUDU_QUICKSTART_IP}:8450--webserver_doc_root=/opt/kudu/www--stderrthreshold=0--use_hybrid_clock=false--unlock_unsafe_flags=true
volumes:kudu-master-1:kudu-master-2:kudu-master-3:kudu-tserver-1:kudu-tserver-2:kudu-tserver-3:kudu-tserver-4:kudu-tserver-5:

内容解释

• version: “3”：指定使用 Docker Compose 文件的版本。版本 3 是当前常用的版本，支持多种高级功能，适用于 Docker 1.13.0 及更高版本。
• services：定义了多个服务，每个服务对应一个 Docker 容器。在本配置中，定义了多个 Kudu Master 和 Kudu Tablet Server（简称 TServer）。
• volumes：定义了持久化存储卷，用于存储各个服务的数据，确保即使容器重新创建或删除，数据仍然保留。

3 个 Kudu Master 节点：

• kudu-master-1
• kudu-master-2
• kudu-master-3

5 个 Kudu Tablet Server 节点：

• kudu-tserver-1
• kudu-tserver-2
• kudu-tserver-3
• kudu-tserver-4
• kudu-tserver-5

Master

每个 Master 节点的配置基本相同，只是端口和持久化卷不同。以下以 kudu-master-1 为例进行解释：

kudu-master-1:image: apache/kudu:${KUDU_QUICKSTART_VERSION:-latest}ports:- "7051:7051"- "8051:8051"command: ["master"]volumes:- kudu-master-1:/var/lib/kuduenvironment:- KUDU_MASTERS=kudu-master-1:7051,kudu-master-2:7151,kudu-master-3:7251- >MASTER_ARGS=--fs_wal_dir=/var/lib/kudu/master--rpc_bind_addresses=0.0.0.0:7051--rpc_advertised_addresses=${KUDU_QUICKSTART_IP:?Please set KUDU_QUICKSTART_IP environment variable}:7051--webserver_port=8051--webserver_advertised_addresses=${KUDU_QUICKSTART_IP}:8051--webserver_doc_root=/opt/kudu/www--stderrthreshold=0--use_hybrid_clock=false--unlock_unsafe_flags=true

• udu-master-1：服务名称，标识第一个 Kudu Master 节点。
• image: apache/kudu:${KUDU_QUICKSTART_VERSION:-latest}：指定使用的 Docker 镜像。apache/kudu 是官方 Kudu 镜像。
• ${KUDU_QUICKSTART_VERSION:-latest}：使用环境变量 KUDU_QUICKSTART_VERSION 指定版本，如果未设置，则默认使用 latest。
• ports：“7051:7051”：将主机的 7051 端口映射到容器的 7051 端口，用于 Kudu Master 的 RPC 通信。“8051:8051”：将主机的 8051 端口映射到容器的 8051 端口，用于 Kudu Master 的 Web 界面。
• command: [“master”]：指定容器启动时运行的命令，这里启动 Kudu Master 进程。
• volumes：kudu-master-1:/var/lib/kudu：将 Docker 卷 kudu-master-1 挂载到容器内的 /var/lib/kudu 目录，用于持久化存储数据。
• KUDU_MASTERS：定义了集群中所有 Master 节点的地址，格式为 hostname:port，以逗号分隔。

启动服务

export KUDU_QUICKSTART_IP=$(ifconfig | grep "inet " | grep -Fv 127.0.0.1 | awk '{print $2}' | tail -1)
docker-compose up -d

访问服务

http://localhost:8051/

这样我们的服务就顺利的启动了：