qq_43278717的博客

3、Turns writable, bytes to buffer before changing channel to un-writable: 当通道变为可写时，会记录可以缓冲的字节数，直到通道再次变为不可写。2、Bytes to drain before it turns writable: 这表示在通道可以再次开始写操作之前，还需要从通道中排出多少字节的数据。1、Auto-read is disabled: 当auto-read被禁用时，Netty不会自动从网络中读取数据，直到明确命令它这么做。

最近发现部署rocketmq-dashboard的服务器磁盘满了，查找了一番原因：后台每秒打印警告：Exception caught: mqAdminExt get broker stats data TOPIC_PUT_NUMS failed...Exception caught: mqAdminExt get broker stats data GROUP_GET_NUMS failed, topic...查看rocketmq-dashboard代码，是收集统计数据的定时任务打印的警告日志，遍历

启动rocketmq服务报错：[root@rocketmq1-nameserver-test bin]# systemctl start rocketmq-nameserver[root@rocketmq1-nameserver-test bin]# systemctl status rocketmq-nameserver● rocketmq-nameserver.service - nameserver Loaded: loaded (/usr/lib/systemd/system/rocke

本文简单介绍spring cloud stream 3.x较之前版本有很大的不同，废除了@Input、@Output、@EnableBinding、@StreamListener等注解以下内容包括生产者消费及单元测试1、引入gradle依赖ext { set('springCloudVersion', "2020.0.1")}dependencies { implementation("org.springframework.cloud:spring-cloud-stream-bind

1、依赖implementation("org.springframework.cloud:spring-cloud-stream-binder-rabbit")更改为：implementation("org.springframework.cloud:spring-cloud-stream-binder-rocketmq:0.9.0.RELEASE")或者maven:<dependency> <groupId>org.springframework.cloud

1、服务基本介绍序号ip角色安装位置节点1192.168.1.1nameserver1、master1、slave1/home/rocketmq2、nohup &方式后台运行启动cd /home/rocketmq/binnohup sh mqnamesrv >namesrv.log &nohup sh mqbroker -c /home/rocketmq/conf/2m-2s-sync/broker-a.properties >mast

1、简单介绍原有的rocketmq-console已被rocketmq-externals单独列为一个项目，现在取名：rocketmq-dashboardrocketmq-externals地址：https://github.com/apache/rocketmq-externals2、下载git项目地址：https://github.com/apache/rocketmq-dashboard本地使用git:git clone https://github.com/apache/rocketm

1、服务器环境序号IP角色1192.168.1.1nameserver1、master1、slave22192.168.1.2nameserver2、master2、slave1java环境：jdk1.82、下载压缩包并解压下载地址：https://archive.apache.org/dist/rocketmq/4.9.0/rocketmq-all-4.9.0-source-release.zip解压：unzip rocketmq-all-4.9.0-b