使用 IntelliJ IDEA 搭建 FE 开发环境

1.环境准备

JDK1.8+, IntelliJ IDEA

从 https://github.com/apache/doris.git 下载源码到本地
使用IntelliJ IDEA 打开代码根目录
如果仅进行fe开发而没有编译过thirdparty，则需要安装thrift，并将thrift 复制或者连接到 thirdparty/installed/bin 目录下

安装 thrift 0.16.0 版本 (注意：Doris 0.15 - 1.2 版本基于 thrift 0.13.0 构建, 最新代码使用 thrift 0.16.0 构建)

以下示例以 0.16.0 为例。如需 0.13.0，请将下面示例中的 0.16.0 改为 0.13.0 即可。
- Windows:
  1. 下载：http://archive.apache.org/dist/thrift/0.16.0/thrift-0.16.0.exe
  2. 拷贝：将文件拷贝至 ./thirdparty/installed/bin
- MacOS:
  1. brew tap homebrew/core --force
  2. brew tap-new $USER/local-tap
  3. brew extract --version='0.16.0' thrift $USER/local-tap
  4. brew install thrift@0.16.0
  如有下载相关的报错，可修改如下文件：
  
  /usr/local/Homebrew/Library/Taps/$USER/homebrew-local-tap/Formula/thrift\@0.16.0.rb
  
  将其中的：
  
  url "https://www.apache.org/dyn/closer.lua?path=thrift/0.16.0/thrift-0.16.0.tar.gz"
  
  修改为：
  
  url "https://archive.apache.org/dist/thrift/0.16.0/thrift-0.16.0.tar.gz"
  
  参考链接: https://gist.github.com/tonydeng/02e571f273d6cce4230dc8d5f394493c
- Linux:
  1. 下载源码包：wget https://archive.apache.org/dist/thrift/0.16.0/thrift-0.16.0.tar.gz
  2. 安装依赖：yum install -y autoconf automake libtool cmake ncurses-devel openssl-devel lzo-devel zlib-devel gcc gcc-c++
  3. tar zxvf thrift-0.16.0.tar.gz
  4. cd thrift-0.16.0
  5. ./configure --without-tests
  6. make
  7. make install
  安装完成后查看版本：thrift --version
  
  注：如果编译过Doris，则不需要安装thrift,可以直接使用 $DORIS_HOME/thirdparty/installed/bin/thrift
如果是Mac 或者 Linux 环境可以通过如下命令自动生成代码：
```
sh generated-source.sh
```
如使用 1.2 及之前版本，可以使用如下命令：
```
cd fe
mvn generate-sources
```
如果出现错误，则执行：
```
cd fe && mvn clean install -DskipTests
```

或者通过图形界面运行 maven 命令生成

如果使用windows环境可能会有make命令和sh脚本无法执行的情况可以通过拷贝linux上的 fe/fe-core/target/generated-sources 目录拷贝到相应的目录的方式实现，也可以通过docker 镜像挂载本地目录之后，在docker 内部生成自动生成代码，可以参照编译一节

如果还未生成过help文档，需要跳转到docs目录，执行sh build_help_zip.sh，

然后将build中的help-resource.zip拷贝到fe/fe-core/target/classes中

2.调试

用idea导入fe工程
在fe目录下创建下面红框标出的目录（在新版本中该目录可能存在，如存在则跳过，否则创建）

编译ui项目，将 ui/dist/目录中的文件拷贝到webroot中（如果你不需要看Doris UI，这一步可以跳过）

3.配置conf/fe.conf

下面是我自己的配置，你可以根据自己的需要进行修改(注意：如果使用Mac开发，由于docker for Mac不支持Host模式，需要使用-p方式暴露be端口，同时fe.conf的priority_networks配置为容器内可访问的Ip，例如WIFI的Ip)

# Licensed to the Apache Software Foundation (ASF) under one
# or more contributor license agreements.  See the NOTICE file
# distributed with this work for additional information
# 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.

#####################################################################
## The uppercase properties are read and exported by bin/start_fe.sh.
## To see all Frontend configurations,
## see fe/src/org/apache/doris/common/Config.java
#####################################################################

# the output dir of stderr and stdout 
LOG_DIR = ${DORIS_HOME}/log

DATE = `date +%Y%m%d-%H%M%S`
JAVA_OPTS="-Xmx2048m -XX:+UseMembar -XX:SurvivorRatio=8 -XX:MaxTenuringThreshold=7 -XX:+PrintGCDateStamps -XX:+PrintGCDetails -XX:+UseConcMarkSweepGC -XX:+UseParNewGC -XX:+CMSClassUnloadingEnabled -XX:-CMSParallelRemarkEnabled -XX:CMSInitiatingOccupancyFraction=80 -XX:SoftRefLRUPolicyMSPerMB=0 -Xloggc:$DORIS_HOME/log/fe.gc.log.$DATE"

# For jdk 9+, this JAVA_OPTS will be used as default JVM options
JAVA_OPTS_FOR_JDK_9="-Xmx4096m -XX:SurvivorRatio=8 -XX:MaxTenuringThreshold=7 -XX:+CMSClassUnloadingEnabled -XX:-CMSParallelRemarkEnabled -XX:CMSInitiatingOccupancyFraction=80 -XX:SoftRefLRUPolicyMSPerMB=0 -Xlog:gc*:$DORIS_HOME/log/fe.gc.log.$DATE:time"

##
## the lowercase properties are read by main program.
##

# INFO, WARN, ERROR, FATAL
sys_log_level = INFO

# store metadata, create it if it is not exist.
# Default value is ${DORIS_HOME}/doris-meta
# meta_dir = ${DORIS_HOME}/doris-meta

http_port = 8030
rpc_port = 9020
query_port = 9030
arrow_flight_sql_port = -1
edit_log_port = 9010

# Choose one if there are more than one ip except loopback address. 
# Note that there should at most one ip match this list.
# If no ip match this rule, will choose one randomly.
# use CIDR format, e.g. 10.10.10.0/24
# Default value is empty.
# priority_networks = 10.10.10.0/24;192.168.0.0/16

# Advanced configurations 
# log_roll_size_mb = 1024
# sys_log_dir = ${DORIS_HOME}/log
# sys_log_roll_num = 10
# sys_log_verbose_modules = 
# audit_log_dir = ${DORIS_HOME}/log
# audit_log_modules = slow_query, query
# audit_log_roll_num = 10
# meta_delay_toleration_second = 10
# qe_max_connection = 1024
# qe_query_timeout_second = 300
# qe_slow_log_ms = 5000

4.设置环境变量

在IDEA中设置运行环境变量

5.配置options

由于部分依赖使用了provided，idea需要做下特殊配置，在Run/Debug Configurations设置中点击右侧Modify options，勾选Add dependencies with "provided" scope to classpath选项

6.启动fe

下面你就可以愉快的启动，调试你的FE了

1.环境准备​

2.调试​

3.配置conf/fe.conf​

4.设置环境变量​

5.配置options​

6.启动fe​