294 lines
8.6 KiB
Markdown
294 lines
8.6 KiB
Markdown
---
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{ 'title': 'Doris BE开发调试环境 -- vscode', 'language': 'zh-CN' }
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---
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<!--
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Licensed to the Apache Software Foundation (ASF) under one
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or more contributor license agreements. See the NOTICE file
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regarding copyright ownership. The ASF licenses this file
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"License"); you may not use this file except in compliance
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing,
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KIND, either express or implied. See the License for the
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# Apache Doris Be 开发调试
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## 前期准备工作
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**本教程是在 Ubuntu 20.04 下进行的**
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**文中的出现的 BE 二进制文件名称 `doris_be`，在之前的版本中为 `palo_be`。**
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1. 下载 doris 源代码
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下载地址为：[apache/doris: Apache Doris (github.com)](https://github.com/apache/doris)
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2. 安装 GCC 8.3.1+，Oracle JDK 1.8+，Python 2.7+，确认 gcc, java, python 命令指向正确版本, 设置 JAVA_HOME 环境变量
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3. 安装其他依赖包
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```
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sudo apt install build-essential openjdk-8-jdk maven cmake byacc flex automake libtool-bin bison binutils-dev libiberty-dev zip unzip libncurses5-dev curl git ninja-build python brotli
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sudo add-apt-repository ppa:ubuntu-toolchain-r/ppa
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sudo apt update
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sudo apt install gcc-10 g++-10
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sudo apt-get install autoconf automake libtool autopoint
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```
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4. 安装 openssl libssl-dev
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```
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sudo apt install -y openssl libssl-dev
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```
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## 编译
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以下操作步骤在 /home/workspace 目录下进行
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1. 下载源码
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```
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git clone https://github.com/apache/doris.git
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```
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2. 编译第三方依赖包
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```
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cd /home/workspace/doris/thirdparty
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./build-thirdparty.sh
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```
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3. 编译 doris 产品代码
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```
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cd /home/workspace/doris
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./build.sh
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```
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注意：这个编译有以下几条指令：
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```
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./build.sh #同时编译be 和fe
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./build.sh --be #只编译be
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./build.sh --fe #只编译fe
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./build.sh --fe --be#同时编译be fe
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./build.sh --fe --be --clean#删除并同时编译be fe
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./build.sh --fe --clean#删除并编译fe
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./build.sh --be --clean#删除并编译be
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./build.sh --be --fe --clean#删除并同时编译be fe
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```
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如果不出意外，应该会编译成功，最终的部署文件将产出到 /home/workspace/doris/output/ 目录下。如果还遇到其他问题，可以参照 doris 的安装文档 http://doris.apache.org。
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## 部署调试(GDB)
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1. 给 be 编译结果文件授权
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```
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chmod /home/workspace/doris/output/be/lib/doris_be
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```
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注意： /home/workspace/doris/output/be/lib/doris_be 为 be 的执行文件。
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2. 创建数据存放目录
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通过查看/home/workspace/doris/output/be/conf/be.conf
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```
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# INFO, WARNING, ERROR, FATAL
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sys_log_level = INFO
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be_port = 9060
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be_rpc_port = 9070
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webserver_port = 8040
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heartbeat_service_port = 9050
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brpc_port = 8060
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# Note that there should at most one ip match this list.
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# If no ip match this rule, will choose one randomly.
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# use CIDR format, e.g. 10.10.10.0/
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# Default value is empty.
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priority_networks = 192.168.59.0/24 # data root path, separate by ';'
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storage_root_path = /soft/be/storage
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# sys_log_dir = ${PALO_HOME}/log
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# sys_log_roll_mode = SIZE-MB-
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# sys_log_roll_num =
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# sys_log_verbose_modules =
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# log_buffer_level = -
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# palo_cgroups
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```
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需要创建一个文件夹，这是 be 数据存放的地方
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```
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mkdir -p /soft/be/storage
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```
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3. 打开 vscode，并打开 be 源码所在目录，在本案例中打开目录为 **/home/workspace/doris/**
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4. 安装 vscode ms c++ 调试插件
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5. 创建 launch.json 文件，文件内容如下：
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```
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{
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"version": "0.2.0",
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"configurations": [
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{
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"name": "(gdb) Launch",
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"type": "cppdbg",
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"request": "launch",
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"program": "/home/workspace/doris/output/be/lib/doris_be",
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"args": [],
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"stopAtEntry": false,
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"cwd": "/home/workspace/doris/",
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"environment": [{"name":"PALO_HOME","value":"/home/workspace/doris/output/be/"},
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{"name":"UDF_RUNTIME_DIR","value":"/home/workspace/doris/output/be/lib/udf-runtime"},
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{"name":"LOG_DIR","value":"/home/workspace/doris/output/be/log"},
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{"name":"PID_DIR","value":"/home/workspace/doris/output/be/bin"}
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],
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"externalConsole": true,
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"MIMode": "gdb",
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"setupCommands": [
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{
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"description": "Enable pretty-printing for gdb",
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"text": "-enable-pretty-printing",
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"ignoreFailures": true
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}
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]
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}
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]
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}
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```
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其中，environment 定义了几个环境变量 DORIS_HOME UDF_RUNTIME_DIR LOG_DIR PID_DIR，这是 doris_be 运行时需要的环境变量，如果没有设置，启动会失败。
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**注意：如果希望是 attach(附加进程）调试，配置代码如下：**
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```
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{
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"version": "0.2.0",
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"configurations": [
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{
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"name": "(gdb) Launch",
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"type": "cppdbg",
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"request": "attach",
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"program": "/home/workspace/doris/output/lib/doris_be",
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"processId":,
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"MIMode": "gdb",
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"internalConsoleOptions":"openOnSessionStart",
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"setupCommands": [
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{
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"description": "Enable pretty-printing for gdb",
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"text": "-enable-pretty-printing",
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"ignoreFailures": true
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}
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]
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}
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]
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}
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```
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配置中 **"request": "attach"， "processId":PID**，这两个配置是重点： 分别设置 gdb 的调试模式为 attach，附加进程的 processId，否则会失败。如何查找进程 id，可以在命令行中输入以下命令：
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```
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ps -ef | grep palo*
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```
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如图：
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其中的 15200 即为当前运行的 be 的进程 id.
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一个完整的 launch.json 的例子如下：
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```
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{
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"version": "0.2.0",
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"configurations": [
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{
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"name": "(gdb) Attach",
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"type": "cppdbg",
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"request": "attach",
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"program": "/home/workspace/doris/output/be/lib/doris_be",
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"processId": 17016,
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"MIMode": "gdb",
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"setupCommands": [
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{
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"description": "Enable pretty-printing for gdb",
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"text": "-enable-pretty-printing",
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"ignoreFailures": true
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}
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]
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},
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{
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"name": "(gdb) Launch",
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"type": "cppdbg",
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"request": "launch",
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"program": "/home/workspace/doris/output/be/lib/doris_be",
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"args": [],
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"stopAtEntry": false,
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"cwd": "/home/workspace/doris/output/be",
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"environment": [
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{
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"name": "DORIS_HOME",
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"value": "/home/workspace/doris/output/be"
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},
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{
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"name": "UDF_RUNTIME_DIR",
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"value": "/home/workspace/doris/output/be/lib/udf-runtime"
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},
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{
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"name": "LOG_DIR",
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"value": "/home/workspace/doris/output/be/log"
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},
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{
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"name": "PID_DIR",
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"value": "/home/workspace/doris/output/be/bin"
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}
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],
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"externalConsole": false,
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"MIMode": "gdb",
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"setupCommands": [
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{
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"description": "Enable pretty-printing for gdb",
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"text": "-enable-pretty-printing",
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"ignoreFailures": true
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}
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]
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}
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]
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}
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```
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6. 点击调试即可
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下面就可以开始你的 Doris DEBUG 之旅了
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## 调试(LLDB)
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lldb的attach比gdb更快，使用方式和gdb类似。vscode需要安装的插件改为`CodeLLDB`，然后在launch中加入如下配置:
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```json
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{
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"name": "CodeLLDB attach",
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"type": "lldb",
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"request": "attach",
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"program": "${workspaceFolder}/output/be/lib/doris_be",
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"pid":"${command:pickMyProcess}"
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}
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```
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需要注意的是，此方式要求系统`glibc`版本为`2.18+`。如果没有则可以参考 [如何使CodeLLDB在CentOS7下工作](https://gist.github.com/JaySon-Huang/63dcc6c011feb5bd6deb1ef0cf1a9b96) 安装高版本glibc并将其链接到插件。 |