Question

1.环境准备

JDK1.8+, IntelliJ IDEA

1. 从 https://github.com/apache/incubator-doris.git 下载源码到本地

2. 使用IntelliJ IDEA 打开代码根目录

3. 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

   1. 安装 thrift 0.9.3 版本(注意：Doris 基于 thrift 0.9.3 构建, 使用新版本会导致编译不通过)

      MacOS: brew install thrift@0.9 Windows: http://archive.apache.org/dist/thrift/0.9.3/thrift-0.9.3.exe

4. 如果是Mac 或者 Linux 环境 可以通过 如下命令生成自动生成代码：

    cd fe
    mvn  generate-sources
   

   如果出现错误，请先执行：

    cd fe && mvn install -DskipTests
   

或者通过图形界面运行运行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

2.调试

1. 用idea导入fe工程；

2.在fe目录下创建下面红框标出的目录，并将webroot里的内容拷贝进去

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

# 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
edit_log_port = 9010
mysql_service_nio_enabled = true

# 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
# max_conn_per_user = 100
# 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.启动fe

下面你就可以愉快的启动，调试你的FE了