Ubuntu rabbitmq-server启动时遇到过的5种错误

这里用的erlang版本 21.1，openssl 版本1.1.0g，RabbitMQ版本 3.7.15

1 undef

Error description: init:do_boot/3 init:start_em/1 rabbit:start_it/1 line 478 rabbit:'-boot/0-fun-0-'/0 line 329 rabbit_node_monitor:prepare_cluster_status_files/0 line 106 rabbit_mnesia:ensure_mnesia_dir/0 line 571 mnesia:system_info(directory) error:undef

undef错误为没安装erlang或各类依赖没安装全

erlang安装步骤

在erlang官网下载otp_src_21.1.tar.gzrz导入Ubuntu后 tar -xvf otp_src_21.1.tar.gz cd otp_src_21.1 ./configure --prefix=/usr/local/erlang21 --with-ssl --enable-threads --enable-smp-support --enable-kernel-poll --enable-hipe --without-javac make -j 4 make install

各种依赖

sudo apt-get install build-essential sudo apt-get install libncurses5-dev sudo apt-get install libssl-dev sudo apt-get install m4 sudo apt-get install unixodbc unixodbc-dev sudo apt-get install xsltproc sudo apt-get install fop sudo apt-get install tk8.5

2 找不见erl命令

解决：修改环境变量

sudo vi /etc/profile

添上一行安装位置：

export PATH=$PATH:/usr/local/erlang21/bin

3 cannot connect to host/port

ERROR: epmd error for host ubuntu-server: address (cannot connect to host/port)

解决：

sudo vi /etc/hosts

在里面添上一行

127.0.0.1 ubuntu-server(你的主机名)

4 erlang版本太低

卸载：https://blog.csdn.net/wudixiaotie/article/details/84719722 然后按上面的步骤安装新的

5 missing_dependencies,[crypto,ssl]

Error description: init:do_boot/3 init:start_em/1 rabbit:start_it/1 line 478 rabbit:broker_start/0 line 352 rabbit_plugins:prepare_plugins/1 line 307 rabbit_plugins:ensure_dependencies/1 line 282 throw:{error,{missing_dependencies,[crypto,ssl], [amqp10_client,cowboy,cowlib,rabbitmq_aws, rabbitmq_management, rabbitmq_management_agent,rabbitmq_shovel, rabbitmq_trust_store]}}

首先看是否安装openssl

openssl version

查看版本看看 openssl安装步骤

sudo apt-get install openssl

或

wget http://www.openssl.org/source/openssl-1.1.0g.tar.gz tar -zxf openssl-1.1.0g.tar.gz cd openssl-1.1.0g ./config --prefix=/usr/bin/ssl sed -i "s|CFLAG= |CFLAG= -fPIC |" Makefile make make install

安装完后重新做安装erlang21操作，带上ssl

./configure --prefix=/usr/local/erlang21 --with-ssl --enable-threads --enable-smp-support --enable-kernel-poll --enable-hipe --without-javac

若已安装的出错，同样做安装erlang21操作，带上ssl 若还出错，可能是版本过低