如何调试rabbitmq ldap代码？

Question

我正在尝试使用openldap进行Rabbitmq auth。但是在监控openldap日志时，它总是有错误信息。

计划通过替换ebin文件将调试代码插入rabbitmq的源代码中。

两个问题:

>

如何使 rabbitmq-server 从 shell 输入开始，因此可以在线调试。默认情况下，ps -ef show rabbitmq 从 noshell 开始。如何改变它？

yus-iMac:艾宾陈余$ ps -ef|grep erl

501 16021 16014 0 Thu08AM ttys 000 48:49.47/usr/local/Cellar/Erlang/r16b 01/lib/Erlang/ERTs-5 . 10 . 2/bin/beam . SMP--root/usr/local/Cellar/Erlang/r16b 01/lib/Erlang-progname erl--home/Users/陈余--newshell-name emacs 501 19097 56527 0 4:56../../ERTs-5 . 10 . 2/bin/beam . SMP-W W-K true-A30-P 1048576--root/usr/local/Cellar/rabbit MQ/3 . 1 . 5/ERTs-5 . 10 . 2/bin/../..-progname erl--home/Users/陈余--pa/usr/local/Cellar/rabbit MQ/3 . 1 . 5/ebin < code >-no shell < code >-no input -s rabbit boot-sname rabbit @ localhost-boot/usr/local/Cellar/rabbit MQ/3 . 1 . 5/releases/3 . 1 . 5/start _ sasl-config/usr/local/etc/rabbit MQ/rabbit MQ-kernel inet _ default _ connect _ options[{ 0

我已经检查了引导脚本“rabbitmq-server”

exec ${ERL_DIR}erl \
    -pa ${RABBITMQ_EBIN_ROOT} \
    ${RABBITMQ_START_RABBIT} \
    -sname ${RABBITMQ_NODENAME} \
    -boot "${SASL_BOOT_FILE}" \
    ${RABBITMQ_CONFIG_ARG} \
    +W w \
    ${RABBITMQ_SERVER_ERL_ARGS} \
    ${RABBITMQ_LISTEN_ARG} \
    -sasl errlog_type error \
    -sasl sasl_error_logger false \
    -rabbit error_logger '{file,"'${RABBITMQ_LOGS}'"}' \
    -rabbit sasl_error_logger '{file,"'${RABBITMQ_SASL_LOGS}'"}' \
    -rabbit enabled_plugins_file "\"$RABBITMQ_ENABLED_PLUGINS_FILE\"" \
    -rabbit plugins_dir "\"$RABBITMQ_PLUGINS_DIR\"" \
    -rabbit plugins_expand_dir "\"$RABBITMQ_PLUGINS_EXPAND_DIR\"" \
    -os_mon start_cpu_sup false \
    -os_mon start_disksup false \
    -os_mon start_memsup false \
    -mnesia dir "\"${RABBITMQ_MNESIA_DIR}\"" \
    ${RABBITMQ_SERVER_START_ARGS} \
    "$@" 

添加以下调试代码。

echo "erl dir:" ${ERL_DIR}
echo "pa:" ${RABBITMQ_EBIN_ROOT} 
echo "ebin_root:" ${RABBITMQ_EBIN_ROOT}
echo "boot:" ${SASL_BOOT_FILE}
echo "start rabbit:"  ${RABBITMQ_START_RABBIT}
echo "config_args:" ${RABBITMQ_CONFIG_ARG}
echo "server_erl_args:" ${RABBITMQ_SERVER_ERL_ARGS}
echo "listen_arg:"  ${RABBITMQ_LISTEN_ARG}

调试结果如下:

erl dir: /usr/local/Cellar/rabbitmq/3.1.5/erts-5.10.2/bin/
pa: /usr/local/Cellar/rabbitmq/3.1.5/ebin
ebin_root: /usr/local/Cellar/rabbitmq/3.1.5/ebin
boot: /usr/local/Cellar/rabbitmq/3.1.5/releases/3.1.5/start_sasl
start rabbit: -noinput -s rabbit boot
config_args: -config /usr/local/etc/rabbitmq/rabbitmq
server_erl_args: +K true +A30 +P 1048576 -kernel inet_default_connect_options [{nodelay,true}]
listen_arg: -rabbit tcp_listeners [{"127.0.0.1",5672}]

只有'没有输入'，但不存在"noshell"，ps-ef的输出noshell来自哪里？

>

我用新的“rabbit_auth_backend_ldap.beam”替换了”但是在重新启动 rabbitmq-server 后，并连接它，但调试信息不在 rabbitmq 日志中。看来我的新一个不是工作。

yus-iMac：ebin yuchen$ pwd /usr/local/Cellar/rabbitmq/3.1.5/plugins/expand/rabbitmq_auth_backend_ldap-3.1.5/ebin

Yus-iMac： ebin yuchen$ls-li总计56 20682881-rw-r--r--1 yuchen车轮9648 Apr 6 03:54rabbit_auth_backend_ldap.beam20682882-rw-r--r--1 yuchen车轮2100 Aug 15 2013rabbit_auth_backend_ldap_app.beam20682883-rw-r--r--1 yuchen车轮1764 Aug 15 2013rabbit_auth_backend_ldap_sup.beam20682884-rw-r--r--1 yuchen车轮1928 Aug 15 2013rabbit_auth_backend_ldap_util.beam20682885-rw-r--r--1 yuchen车轮994 Aug 15 2013rabbitmq_auth_backend_ldap.app

更改后的文件部分代码如下，我在模板后添加了111：

log(_Fmt, _Args, #state{log = false}) -> ok;
log( Fmt,  Args, _State)              -> rabbit_log:info(Fmt ++ "~n", Args).

fill(Fmt, Args, State) ->
    ?L2("filling template111 \"~s\" with~n            ~p", [Fmt, Args], State),
    R = rabbit_auth_backend_ldap_util:fill(Fmt, Args),
    ?L2("template result: \"~s\"", [R], State),
    R.

日志在 rabbitmq 服务器重新启动后没有变化。

=INFO REPORT==== 6-Apr-2014::05:25:21 ===
accepting AMQP connection <0.485.0> (127.0.0.1:62003 -> 127.0.0.1:5672)

=INFO REPORT==== 6-Apr-2014::05:25:21 ===
LDAP CHECK: login for equipment_serial_001

=INFO REPORT==== 6-Apr-2014::05:25:21 ===
        LDAP filling template "${username}" with
            [{username,<<"equipment_serial_001">>}]

=INFO REPORT==== 6-Apr-2014::05:25:21 ===
        LDAP template result: "equipment_serial_001"

=INFO REPORT==== 6-Apr-2014::05:25:21 ===
    LDAP bind error: equipment_serial_001 invalidDNSyntax

=INFO REPORT==== 6-Apr-2014::05:25:21 ===
LDAP DECISION: login for equipment_serial_001: {error,invalidDNSyntax}

=ERROR REPORT==== 6-Apr-2014::05:25:24 ===
closing AMQP connection <0.485.0> (127.0.0.1:62003 -> 127.0.0.1:5672):
{handshake_error,starting,0,
                 {amqp_error,access_refused,
                             "PLAIN login refused: rabbit_auth_backend_ldap failed authenticating equipment_serial_001: invalidDNSyntax\n",
                             'connection.start_ok'}}

Answer 1

虽然此错误可能与其他内容有关，但在RabbitMQ 3.3.5上可能导致此错误的一个条件是用户名和包含感叹号的密码：“！”