如何调试rabbitmq ldap代码？

我正在尝试使用openldap for rabbitmq auth . 但是在监视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：

• 如何使用shell输入启动rabbitmq-server，因此可以在线调试 . 默认情况下，ps -ef显示rabbitmq以 noshell 开头 . 怎么改呢？

yus-iMac：ebin yuchen $ ps -ef | grep erl

501 16021 16014 0 Thu08AM ttys000 48：49.47 /usr/local/Cellar/erlang/R16B01/lib/erlang/erts-5.10.2/bin/beam.smp - -root / usr / local / Cellar / erlang / R16B01 / lib / erlang -progname erl - -home / Users / yuchen - -newshell -name emacs 501 19097 56527 0 4:56 AM ttys006 0:00:00 grep erl 501 18980 56711 0 4:56 AM ttys007 0：04.09 / usr / local / Cellar / rabbitmq / 3.1.5 / erts-5.10.2 / bin /../../ erts-5.10.2 / bin / beam.smp -W w -K true -A30 -P 1048576 - -root / usr /local/Cellar/rabbitmq/3.1.5/erts-5.10.2/bin/../ ..-progname erl - -home / Users / yuchen - -pa /usr/local/Cellar/rabbitmq/3.1 . 5 / ebin -noshell -noinput -s rabbit boot -sname rabbit @ localhost -boot /usr/local/Cellar/rabbitmq/3.1.5/releases/3.1.5/start_sasl -config / usr / local / etc / rabbitmq / rabbitmq -kernel inet_default_connect_options [{nodelay，true}] -rabbit tcp_listeners [{"127.0.0.1"，5672}] -sasl errlog_type error -sasl sasl_error_logger false -rabbit error_logger {file，"/usr/local/var/log/rabbitmq/rabbit@localhost.log"} -rabbit sasl_error_logger {file，"/usr/local/var/log/rabbitmq/rabbit@localhost-sasl.log"} -rabbit enabled_plugins_ file "/usr/local/etc/rabbitmq/enabled_plugins" -rabbit plugins_dir "/usr/local/Cellar/rabbitmq/3.1.5/plugins" -rabbit plugins_expand_dir "/usr/local/var/lib/rabbitmq/mnesia/rabbit@localhost-plugins-expand" -os_mon start_cpu_sup false -os_mon start_disksup false -os_mon start_memsup false -mnesia dir "/usr/local/var/lib/rabbitmq/mnesia/rabbit@localhost"

我检查了启动脚本“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'no input'，但不存在“ noshell ”，其中 ps -ef 的输出 noshell 来自？

• 我用新的替换了“rabbit_auth_backend_ldap.beam” . 但重新启动rabbitmq-server后，连接它，但调试信息不在rabbitmq日志中 . 看来我的新手不行 .

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 total 56 20682881 -rw-r - r-- 1 yuchen wheel 9648 Apr 6 03:54 rabbit_auth_backend_ldap.beam 20682882 -rw-r - r-- 1 yuchen wheel 2100 8月15日2013 rabbit_auth_backend_ldap_app.beam 20682883 -rw-r - r-- 1 yuchen wheel 1764 Aug 15 2013 rabbit_auth_backend_ldap_sup.beam 20682884 -rw-r - r-- 1 yuchen wheel 1928 Aug 15 2013 rabbit_auth_backend_ldap_util.beam 20682885 -rw-r- -r-- 1 yuchen wheel 994 Aug 15 2013 rabbitmq_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.

在rabbitmq-server重启后，日志没有变化 .

=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'}}