环境centos 6.5JDK 8CHD 5.16MySQL 5.7python.2.6 (hue)以三台vps为例: vps138(主),vps155(从),vps156(从)Hostname设置三台的hosts都要相同$ cat /etc/hosts127.0.0.1localhost localhost.localdomain localhost4 localh...

Maximum Request LatencyCDH zookeeper报警: Maximum Request Latency存在隐患 : 请求延迟最大值：32,264。会话超时最大值：40,000。会话超时百分比：80.66%。 警告阈值：75.00%。这是CDH的健康值检查,检查项为ZOOKEEPER_SERVER_MAX_LATENCY查看日志/var/log/zookeeper/...

kafka需要zookeeper,zk安装参见zookeeper 单节点安装下载解压$ cd /var/tmp$ wget https://mirrors.tuna.tsinghua.edu.cn/apache/kafka/2.3.0/kafka_2.12-2.3.0.tgz$ tar -xzf kafka_2.12-2.3.0.tgz$ mv kafka_2.12-2.3.0 /usr...

由<Python 学习手册>总结模块就是有代码的py文件;模块myfile.py'''@File: myfile.py@Time: 2019/10/10@Author: chenzl@Version: 1.0@Contact: zhiliang-chen@hotmail.com@License: CC@D...

kafka开启了SASL(kerberos), server.properties配置为sasl.enabled.mechanisms: GSSAPIsecurity.inter.broker.protocol: SASL_PLAINTEXTssl.mode.enable: falseallow.everyone.if.no.acl.found: truesasl.port: 19092服务端的j

kafka开启了SASL(kerberos), server.properties配置为sasl.enabled.mechanisms: GSSAPIsecurity.inter.broker.protocol: SASL_PLAINTEXTssl.mode.enable: falseallow.everyone.if.no.acl.found: truesasl.port: 19092服务端的j