官网:
https://www.rabbitmq.com/install-standalone-mac.html
安装erlang语言环境
安装依赖文件
yum install ncurses-devel
yum -y install openssl
yum -y install ssl
yum -y install xmlto
yum -y install python-simplejson
yum -y install python
进入 http://www.erlang.org/download.html 选择源文件下载
wget http://www.erlang.org/download/otp_src_17.5.tar.gz
tar zxvf otp_src_17.5.tar.gz
cd otp_src_17.5
阅读HOTO/INSTALL.md文件
./configure
make && make install
安装完成以后,执行erl看是否能打开eshell,用’halt().’退出,注意后面的点号,那是erlang的结束符。
[root@iZ113aowxo2Z ~]# erl
Erlang/OTP 17 [erts-6.4] [source] [64-bit] [async-threads:10] [hipe] [kernel-poll:false]
Eshell V6.4 (abort with ^G)
1> 9+1.
10
2> halt().
安装RabbitMQ
安装依赖
yum install xmlto
创建主文件夹
mkdir rabbitmq
cd rabbitmq
直接使用RPM
wget http://www.rabbitmq.com/releases/rabbitmq-server/v3.6.0/rabbitmq-server-3.6.0-1.noarch.rpm
rpm -ivh rabbitmq-server-3.6.0-1.noarch.rpm
编译安装包
进入http://www.rabbitmq.com/download.html选择最新的源码包
wget http://www.rabbitmq.com/releases/rabbitmq-server/v3.6.0/rabbitmq-server-3.6.0.tar.xz
xz -d rabbitmq-server-3.6.0.tar.xz
tar xvf rabbitmq-server-3.6.0.tar
cd rabbitmq-server-3.6.0
make
make install TARGET_DIR=/opt/rabbitmq SBIN_DIR=/opt/rabbitmq/sbin MAN_DIR=/opt/rabbitmq/man DOC_INSTALL_DIR=/opt/rabbitmq/doc
使用
启动MQ
rabbitmq-server -detached
查看状态
rabbitmqctl status
启用管理插件
mkdir /etc/rabbitmq/
rabbitmq-plugins enable rabbitmq_management
停止服务
rabbitmqctl stop
添加账号
PS:默认账号guest只能在localhost访问
rabbitmqctl add_user admin admin
设置管理员
rabbitmqctl set_user_tags admin administrator
设置读写权限
命令使用户admin具有/vhost1这个virtual host中所有资源的配置、写、读权限以便管理其中的资源
rabbitmqctl set_permissions -p /vhost1 admin ‘.‘ ‘.‘ ‘.*’
查看账号
rabbitmqctl list_users
加入账号到配置
vi /etc/rabbitmq/rabbitmq.config
[
{rabbit, [{loopback_users, [“admin”]}]}
].
重启后 http://ip:15672 登录管理界面了
异常处理:
64位CentOS6.2安装erlang及rabbitmqServer
CentOS 6.2 64bit 安装erlang及RabbitMQ Server
1、操作系统环境(CentOS 6.2 64bit)
[root@leekwen ~]# cat /etc/issue CentOS release 6.2 (Final) Kernel \r on an \m [root@leekwen ~]# cat /proc/cpuinfo grep "clflush size" clflush size : 64 clflush size : 64 clflush size : 64 clflush size : 64 clflush size : 64 clflush size : 64 clflush size : 64 clflush size : 642、安装erlang依赖的基本环境
[root@leekwen ~]# yum -y install make gcc gcc-c++ kernel-devel m4 ncurses-devel openssl-devel3、导入erlang源,并安装erlang
[root@leekwen ~]# rpm --import http://binaries.erlang-solutions.com/debian/erlang_solutions.asc [root@leekwen ~]# wget -O /etc/yum.repos.d/erlang_solutions.repo http://binaries.erlang-solutions.com/rpm/centos/erlang_solutions.repo --2014-04-09 22:29:49-- http://binaries.erlang-solutions.com/rpm/centos/erlang_solutions.repo Resolving binaries.erlang-solutions.com... 46.235.224.136 Connecting to binaries.erlang-solutions.com46.235.224.136:80... connected. HTTP request sent, awaiting response... 301 Moved Permanently Location: http://packages.erlang-solutions.com//rpm/centos/erlang_solutions.repo [following] --2014-04-09 22:29:56-- http://packages.erlang-solutions.com//rpm/centos/erlang_solutions.repo Resolving packages.erlang-solutions.com... 31.172.186.53 Connecting to packages.erlang-solutions.com31.172.186.53:80... connected. HTTP request sent, awaiting response... 200 OK Length: 245 Saving to: /etc/yum.repos.d/erlang_solutions.repo 100%[=================================================================================>] 245 --.-K/s in 0s 2014-04-09 22:30:09 (34.0 MB/s) - /etc/yum.repos.d/erlang_solutions.repo [root@leekwen ~]# wget http://apt.sw.be/redhat/el6/en/x86_64/rpmforge/RPMS/rpmforge-release-0.5.2-2.el6.rf.x86_64.rpm Resolving tree.repoforge.org... 78.46.17.228 Connecting to tree.repoforge.org78.46.17.228:80... connected. HTTP request sent, awaiting response... 301 Moved Permanently Location: http://apt.sw.be/redhat/el6/en/x86_64/rpmforge/RPMS/rpmforge-release-0.5.2-2.el6.rf.x86_64.rpm [following] --2014-04-09 22:30:54-- http://apt.sw.be/redhat/el6/en/x86_64/rpmforge/RPMS/rpmforge-release-0.5.2-2.el6.rf.x86_64.rpm Resolving apt.sw.be... 193.1.193.67 Connecting to apt.sw.be193.1.193.67:80... connected. HTTP request sent, awaiting response... 200 OK Length: 12700 (12K) [application/x-redhat-package-manager] Saving to: rpmforge-release-0.5.2-2.el6.rf.x86_64.rpm 100%[=================================================================================>] 12,700 4.80K/s in 2.6s 2014-04-09 22:31:07 (4.80 KB/s) - rpmforge-release-0.5.2-2.el6.rf.x86_64.rpm [root@leekwen ~]# rpm --import http://apt.sw.be/RPM-GPG-KEY.dag.txt [root@leekwen ~]# rpm -i rpmforge-release-0.5.2-2.el6.rf.*.rpm [root@leekwen ~]# yum update [root@leekwen ~]# yum update --skip-broken [root@leekwen ~]# yum install erlang4、测试erlang环境
[root@leekwen ~]# erl Erlang R16B03 (erts-5.10.4) [source] [64-bit] [smp:8:8] [async-threads:10] [kernel-poll:false] Eshell V5.10.4 (abort with ^G) 1> A=12. 12 2> A. 12 3> BREAK: (a)bort (c)ontinue (p)roc info (i)nfo (l)oaded (v)ersion (k)ill (D)b-tables (d)istribution ^C[root@leekwen ~]#5、下载并安装rabbitmq-server
[root@leekwen ~]# wget -c http://www.rabbitmq.com/releases/rabbitmq-server/v3.3.0/rabbitmq-server-3.3.0-1.noarch.rpm --2014-04-10 16:44:24-- http://www.rabbitmq.com/releases/rabbitmq-server/v3.3.0/rabbitmq-server-3.3.0-1.noarch.rpm Resolving www.rabbitmq.com... 192.240.153.117 Connecting to www.rabbitmq.com192.240.153.117:80... connected. HTTP request sent, awaiting response... 200 OK Length: 3869384 (3.7M) [application/x-redhat-package-manager] Saving to: “rabbitmq-server-3.3.0-1.noarch.rpm” 100%[======================================>] 3,869,384 11.9K/s in 5m 37s 2014-04-10 16:50:10 (11.2 KB/s) - “rabbitmq-server-3.3.0-1.noarch.rpm” saved [3869384/3869384] [root@leekwen ~]# yum install rabbitmq-server-3.3.0-1.noarch.rpm Loaded plugins: fastestmirror, security Loading mirror speeds from cached hostfile * base: centos.ustc.edu.cn * extras: centos.ustc.edu.cn * rpmforge: ftp.riken.jp * updates: centos.ustc.edu.cn Setting up Install Process Examining rabbitmq-server-3.3.0-1.noarch.rpm: rabbitmq-server-3.3.0-1.noarch Marking rabbitmq-server-3.3.0-1.noarch.rpm to be installed Resolving Dependencies --> Running transaction check > Package rabbitmq-server.noarch 0:3.3.0-1 will be installed --> Finished Dependency Resolution Dependencies Resolved ================================================================================ Package Arch Version Repository Size ================================================================================ Installing: rabbitmq-server noarch 3.3.0-1 /rabbitmq-server-3.3.0-1.noarch 4.3 M Transaction Summary ================================================================================ Install 1 Package(s) Total size: 4.3 M Installed size: 4.3 M Is this ok [y/N]: y Downloading Packages: Running rpm_check_debug Running Transaction Test Transaction Test Succeeded Running Transaction Installing : rabbitmq-server-3.3.0-1.noarch 1/1 Installed: rabbitmq-server.noarch 0:3.3.0-1 Complete!6、启动rabbitmq-server
[root@leekwen ~]# /etc/init.d/rabbitmq-server start Starting rabbitmq-server: FAILED - check /var/log/rabbitmq/startup_{log, _err} rabbitmq-server. [root@leekwen ~]# cat /var/log/rabbitmq/startup_err [root@leekwen ~]# cat /var/log/rabbitmq/startup_log ERROR: epmd error for host leekwen: address (cannot connect to host/port) [root@leekwen ~]# hostname leekwen [root@leekwen ~]# vi /etc/sysconfig/network NETWORKING=yes HOSTNAME=leekwen [root@leekwen ~]# cat /etc/hosts 127.0.0.1 localhost 127.0.0.1 leekwen ::1 localhost7、以上操作排除了因为主机名不同导致RabbitMQ-Server启动报错的问题,请修改主机名(参见上述步骤),再次启动RabbitMQ-Server
[root@leekwen ~]# /etc/init.d/rabbitmq-server restart Restarting rabbitmq-server: RabbitMQ is not running FAILED - check /var/log/rabbitmq/startup_{log, _err} rabbitmq-server.8、结果同样报错,查看错误的日志:
[root@leekwen ~]# cat /var/log/rabbitmq/startup_log RabbitMQ 3.3.0. Copyright (C) 2007-2013 GoPivotal, Inc. ## ## Licensed under the MPL. See http://www.rabbitmq.com/ ## ## ########## Logs: /var/log/rabbitmq/rabbit@leekwen.log ###### ## /var/log/rabbitmq/rabbit@leekwen-sasl.log ########## Starting broker... BOOT FAILED =========== Error description: {case_clause, {error, {{shutdown, {failed_to_start_child,tcp_listener, {cannot_listen,{0,0,0,0,0,0,0,0},5672,eaddrinuse}}}, {child,undefined,'rabbit_tcp_listener_sup_:::5672', {tcp_listener_sup,start_link, [{0,0,0,0,0,0,0,0}, 5672, [inet6,binary, {packet,raw}, {reuseaddr,true}, {backlog,128}, {nodelay,true}, {linger,{true,0}}, {exit_on_close,false}], {rabbit_networking,tcp_listener_started,[amqp]}, {rabbit_networking,tcp_listener_stopped,[amqp]}, {rabbit_networking,start_client,[]}, "TCP Listener"]}, transient,infinity,supervisor, [tcp_listener_sup]}}}} Log files (may contain more information): /var/log/rabbitmq/rabbit@leekwen.log /var/log/rabbitmq/rabbit@leekwen-sasl.log Stack trace: [{rabbit_networking,start_listener0,4,[]}, {rabbit_networking,'-start_listener/4-lc$^0/1-0-',4,[]}, {rabbit_networking,start_listener,4,[]}, {rabbit_networking,'-boot_tcp/0-lc$^0/1-0-',1,[]}, {rabbit_networking,boot_tcp,0,[]}, {rabbit_networking,boot,0,[]}, {rabbit,'-run_boot_step/1-lc$^1/1-1-',1,[]}, {rabbit,run_boot_step,1,[]}] BOOT FAILED =========== Error description: {could_not_start,rabbit, {bad_return, {{rabbit,start,[normal,[]]}, {'EXIT', {rabbit,failure_during_boot, {case_clause, {error, {{shutdown, {failed_to_start_child,tcp_listener, {cannot_listen,{0,0,0,0,0,0,0,0},5672,eaddrinuse}}}, {child,undefined,'rabbit_tcp_listener_sup_:::5672', {tcp_listener_sup,start_link, [{0,0,0,0,0,0,0,0}, 5672, [inet6,binary, {packet,raw}, {reuseaddr,true}, {backlog,128}, {nodelay,true}, {linger,{true,0}}, {exit_on_close,false}], {rabbit_networking,tcp_listener_started,[amqp]}, {rabbit_networking,tcp_listener_stopped,[amqp]}, {rabbit_networking,start_client,[]}, "TCP Listener"]}, transient,infinity,supervisor, [tcp_listener_sup]}}}}}}}}} Log files (may contain more information): /var/log/rabbitmq/rabbit@leekwen.log /var/log/rabbitmq/rabbit@leekwen-sasl.log {"init terminating in do_boot",{rabbit,failure_during_boot,{could_not_start,rabb use,{error,{{shutdown,{failed_to_start_child,tcp_listener,{cannot_listen,{0,0,0, stener_sup,start_link,[{0,0,0,0,0,0,0,0},5672,[inet6,binary,{packet,raw},{reusea networking,tcp_listener_started,[amqp]},{rabbit_networking,tcp_listener_stopped, or,[tcp_listener_sup]}}}}}}}}}}} tail: /var/log/rabbitmq/startup_log: file truncated [FAILED] [root@leekwen ~]# cat /var/log/rabbitmq/startup_err Crash dump was written to: erl_crash.dump init terminating in do_boot ()9、出现如上的错误,可能是因为5672端口已经被占用的原因。
查看5672端口的情况,如果有进程占用此端口,请将它关闭后,重新启动RabbitMQ-Server;
[root@leekwen ~]# netstat -atn grep 5672 tcp 0 0 0.0.0.0:5672 0.0.0.0:* LISTEN [root@leekwen ~]# lsof -i:5672 COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME qpidd 1901 qpidd 10u IPv4 13941 0t0 TCP *:amqp (LISTEN) [root@leekwen ~]# chkconfig qpidd off [root@leekwen ~]# netstat -atn grep 5672 tcp 0 0 0.0.0.0:5672 0.0.0.0:* LISTEN [root@leekwen ~]# chkconfig qpidd --list qpidd 0:off 1:off 2:off 3:off 4:off 5:off 6:off [root@leekwen ~]# /etc/init.d/qpidd stop Stopping Qpid AMQP daemon: [ OK ] [root@leekwen ~]# netstat -atn grep 5672 tcp 0 0 127.0.0.1:25672 127.0.0.1:60925 TIME_WAIT [root@leekwen ~]# lsof -i:5672 [root@leekwen ~]# /etc/init.d/rabbitmq-server start Starting rabbitmq-server: SUCCESS rabbitmq-server.10、查看RabbitMQ服务启动的状态,并开启RabbitMQ的相应管理插件:
[root@leekwen ~]# rabbitmqctl status Status of node rabbit@leekwen ... [{pid,716}, {running_applications,[{rabbit,"RabbitMQ","3.3.0"}, {os_mon,"CPO CXC 138 46","2.2.14"}, {mnesia,"MNESIA CXC 138 12","4.11"}, {xmerl,"XML parser","1.3.5"}, {sasl,"SASL CXC 138 11","2.3.4"}, {stdlib,"ERTS CXC 138 10","1.19.4"}, {kernel,"ERTS CXC 138 10","2.16.4"}]}, {os,{unix,linux}}, {erlang_version,"Erlang R16B03 (erts-5.10.4) [source] [64-bit] [smp:8:8] [async-threads:30] [kernel-poll:true]\n"}, {memory,[{total,36436456}, {connection_procs,2704}, {queue_procs,5408}, {plugins,0}, {other_proc,13704576}, {mnesia,60240}, {mgmt_db,0}, {msg_index,24368}, {other_ets,789624}, {binary,13672}, {code,16399491}, {atom,594537}, {other_system,4841836}]}, {alarms,[]}, {listeners,[{clustering,25672,"::"},{amqp,5672,"::"}]}, {vm_memory_high_watermark,0.4}, {vm_memory_limit,6690450636}, {disk_free_limit,50000000}, {disk_free,47402364928}, {file_descriptors,[{total_limit,924}, {total_used,3}, {sockets_limit,829}, {sockets_used,1}]}, {processes,[{limit,1048576},{used,131}]}, {run_queue,0}, {uptime,83}] ...done. [root@leekwen ~]# netstat -atn grep 5672 tcp 0 0 0.0.0.0:25672 0.0.0.0:* LISTEN tcp 0 0 :::5672 :::* LISTEN [root@leekwen ~]# lsof -i:5672 COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME beam.smp 716 rabbitmq 15u IPv6 1948888 0t0 TCP *:amqp (LISTEN) [root@leekwen ~]# rabbitmq-plugins list [ ] amqp_client 3.3.0 [ ] cowboy 0.5.0-rmq3.3.0-git4b93c2d [ ] eldap 3.3.0-gite309de4 [ ] mochiweb 2.7.0-rmq3.3.0-git680dba8 [ ] rabbitmq_amqp1_0 3.3.0 [ ] rabbitmq_auth_backend_ldap 3.3.0 [ ] rabbitmq_auth_mechanism_ssl 3.3.0 [ ] rabbitmq_consistent_hash_exchange 3.3.0 [ ] rabbitmq_federation 3.3.0 [ ] rabbitmq_federation_management 3.3.0 [ ] rabbitmq_management 3.3.0 [ ] rabbitmq_management_agent 3.3.0 [ ] rabbitmq_management_visualiser 3.3.0 [ ] rabbitmq_mqtt 3.3.0 [ ] rabbitmq_shovel 3.3.0 [ ] rabbitmq_shovel_management 3.3.0 [ ] rabbitmq_stomp 3.3.0 [ ] rabbitmq_tracing 3.3.0 [ ] rabbitmq_web_dispatch 3.3.0 [ ] rabbitmq_web_stomp 3.3.0 [ ] rabbitmq_web_stomp_examples 3.3.0 [ ] sockjs 0.3.4-rmq3.3.0-git3132eb9 [ ] webmachine 1.10.3-rmq3.3.0-gite9359c7 [root@leekwen ~]# rabbitmq-plugins enable rabbitmq_management The following plugins have been enabled: mochiweb webmachine rabbitmq_web_dispatch amqp_client rabbitmq_management_agent rabbitmq_management Plugin configuration has changed. Restart RabbitMQ for changes to take effect. [root@leekwen ~]# rabbitmq-plugins enable mochiweb webmachine rabbitmq_web_dispatch amqp_client rabbitmq_m anagement_agent rabbitmq_management Plugin configuration unchanged. [root@leekwen ~]# rabbitmq-plugins list [E] amqp_client 3.3.0 [ ] cowboy 0.5.0-rmq3.3.0-git4b93c2d [ ] eldap 3.3.0-gite309de4 [E] mochiweb 2.7.0-rmq3.3.0-git680dba8 [ ] rabbitmq_amqp1_0 3.3.0 [ ] rabbitmq_auth_backend_ldap 3.3.0 [ ] rabbitmq_auth_mechanism_ssl 3.3.0 [ ] rabbitmq_consistent_hash_exchange 3.3.0 [ ] rabbitmq_federation 3.3.0 [ ] rabbitmq_federation_management 3.3.0 [E] rabbitmq_management 3.3.0 [E] rabbitmq_management_agent 3.3.0 [ ] rabbitmq_management_visualiser 3.3.0 [ ] rabbitmq_mqtt 3.3.0 [ ] rabbitmq_shovel 3.3.0 [ ] rabbitmq_shovel_management 3.3.0 [ ] rabbitmq_stomp 3.3.0 [ ] rabbitmq_tracing 3.3.0 [E] rabbitmq_web_dispatch 3.3.0 [ ] rabbitmq_web_stomp 3.3.0 [ ] rabbitmq_web_stomp_examples 3.3.0 [ ] sockjs 0.3.4-rmq3.3.0-git3132eb9 [E] webmachine 1.10.3-rmq3.3.0-gite9359c7 [root@leekwen ~]# rabbitmq-plugins list [E] amqp_client 3.3.0 [ ] cowboy 0.5.0-rmq3.3.0-git4b93c2d [ ] eldap 3.3.0-gite309de4 [E] mochiweb 2.7.0-rmq3.3.0-git680dba8 [ ] rabbitmq_amqp1_0 3.3.0 [ ] rabbitmq_auth_backend_ldap 3.3.0 [ ] rabbitmq_auth_mechanism_ssl 3.3.0 [ ] rabbitmq_consistent_hash_exchange 3.3.0 [ ] rabbitmq_federation 3.3.0 [ ] rabbitmq_federation_management 3.3.0 [E] rabbitmq_management 3.3.0 [E] rabbitmq_management_agent 3.3.0 [ ] rabbitmq_management_visualiser 3.3.0 [ ] rabbitmq_mqtt 3.3.0 [ ] rabbitmq_shovel 3.3.0 [ ] rabbitmq_shovel_management 3.3.0 [ ] rabbitmq_stomp 3.3.0 [ ] rabbitmq_tracing 3.3.0 [E] rabbitmq_web_dispatch 3.3.0 [ ] rabbitmq_web_stomp 3.3.0 [ ] rabbitmq_web_stomp_examples 3.3.0 [ ] sockjs 0.3.4-rmq3.3.0-git3132eb9 [E] webmachine 1.10.3-rmq3.3.0-gite9359c7 [root@leekwen ~]# netstat -atn grep 5672 tcp 0 0 0.0.0.0:25672 0.0.0.0:* LISTEN tcp 0 0 :::5672 :::* LISTEN [root@leekwen ~]# netstat -atn grep 15672 [root@leekwen ~]# netstat -atn grep 55672 [root@leekwen ~]# /etc/init.d/rabbitmq-server restart Restarting rabbitmq-server: SUCCESS rabbitmq-server. [root@leekwen ~]# netstat -atn grep 55672 [root@leekwen ~]# netstat -atn grep 5672 tcp 0 0 0.0.0.0:15672 0.0.0.0:* LISTEN tcp 0 0 0.0.0.0:25672 0.0.0.0:* LISTEN tcp 0 0 127.0.0.1:54463 127.0.0.1:25672 TIME_WAIT tcp 0 0 127.0.0.1:60321 127.0.0.1:25672 TIME_WAIT tcp 0 0 127.0.0.1:25672 127.0.0.1:56750 TIME_WAIT tcp 0 0 :::5672 :::* LISTEN 就可以用guest,guest登陆http://192.168.1.101:15672端口了。
注意:如果此时你从端口15672或55672登陆不了,请关闭CentOS6.2的防火墙,再次登陆,
如果仍然出现无法登陆的想象,查看日志后,显示:
=ERROR REPORT==== 20-Apr-2014::00:55:15 === webmachine error: path="api/whoami" "Unauthorized"那么请运行如下的命令,增加用户admin,密码admin即可。
[root@leekwen ~]# rabbitmqctl add_user admin admin Creating user "admin" ... ...done. [root@leekwen ~]# rabbitmqctl list_users Listing users ... admin [] guest [administrator] ...done. [root@leekwen ~]# rabbitmqctl set_user_tags admin administrator Setting tags for user "admin" to [administrator] ... ...done. [root@leekwen ~]# rabbitmqctl list_users Listing users ... admin [administrator] guest [administrator] ...done.到此,配置完成。
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9. **异常处理与错误恢复** 通过源码,我们可以看到RabbitMQ客户端如何处理网络故障、服务器异常等错误情况,以及如何实现重连和自动恢复策略。 10. **性能优化** 分析源码还可以发现RabbitMQ如何优化内存管理、...
6. **异常处理**:内置异常处理机制,能够捕获并适当地处理RabbitMQ操作过程中可能出现的错误。 **三、使用方法** 1. **引入DLL**:将C# RabbitMQ Helper编译后的DLL文件引入到你的项目中,添加对它的引用。 2. *...
综上所述,"java rabbitmq动态注册,监听实现"这个主题涵盖了Spring Boot与RabbitMQ的集成、动态注册消费者、消息监听、异常处理等多个核心知识点。通过合理地运用这些技术,可以构建一个灵活且可靠的分布式消息处理...
4. **异常处理**:确保在可能出现异常的地方添加合适的异常捕获和处理机制,以保证服务的稳定性。 接下来,`MQPublishService.java`表示发布者服务,它负责发送消息到RabbitMQ。封装发布者线程涉及的主要知识点有:...
8. **异常处理与确认机制**:确保消息的可靠传输,代码可能包含异常处理逻辑,以及使用消息确认机制(publisher confirms或consumer acknowledges)来跟踪消息是否成功送达。 9. **队列持久化与消息持久性**:为了...
3. 错误恢复:通过消息持久化和死信队列,RabbitMQ可以保证消息在异常情况下不丢失,便于故障恢复。 4. 日志聚合:在日志收集系统中,RabbitMQ可接收来自各个节点的日志,再转发给日志分析系统。 总结,RabbitMQ ...
### Django+Celery+RabbitMQ配置文档 ...- **异常处理**: 对任务中的异常情况进行捕获和处理,确保系统的稳定性和健壮性。 通过以上步骤,可以实现基于Django框架的异步任务处理功能,提高系统的响应速度和处理能力。
8. **异常处理**:理解如何处理消费消息时可能出现的异常,如重新入队、确认机制和重试策略。 9. **性能优化**:包括合理设置队列大小、减少网络延迟、优化消息格式等。 10. **监控与日志**:利用 RabbitMQ 提供的...
4. **异常处理**:定义异常处理器,处理消息发送过程中可能出现的问题。 #### 六、总结 RabbitMQ 作为一种成熟的消息队列服务,在分布式系统中扮演着重要的角色。无论是实现微服务间的通信、异步处理还是日志收集...
- **异常处理**:捕获可能出现的异常,如网络错误,以提供良好的用户体验。 - **消息序列化和反序列化**:根据应用需求,可能需要将C++对象转换为AMQP消息格式,或反之。 通过这个RabbitMQ客户端工程,开发者不仅...
同时,确保正确处理连接异常和关闭。 3. **声明交换机和队列**:根据业务需求,声明所需的交换机类型(如Direct、Fanout、Topic或Header)和队列。交换机决定了消息如何路由,而队列则存储待处理的消息。 4. **...