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RSS订阅原创 Linux 的一些常用命令
nohup python3 -u data_check.py >> data_check.log &nohup 不被挂起 -u 不启用缓存ps -ef | grep pydf -hl 查看磁盘空间Du -m ./ 查看磁盘使用sudo hostnamectl set-hostname <newhostname> 修改主机名nc -lk 9999...
2019-05-23 10:24:43
205
原创 mysql Linux安装
groupadd mysqluseradd -r -g mysql -s /bin/false mysqlcd /usr/localtar zxvf /path/to/mysql-VERSION-OS.tar.gzln -s full-path-to-mysql-VERSION-OS mysqlcd mysqlmkdir mysql-fileschown mysql:mysql my...
2019-05-23 09:58:48
262
原创 java 对hbase 数据操作
package com.hbase;import org.apache.hadoop.conf.Configuration;import org.apache.hadoop.hbase.HBaseConfiguration;import org.apache.hadoop.hbase.HConstants;import org.apache.hadoop.hbase.TableName...
2018-08-25 12:20:55
246
原创 Java对Hbase表级的操作
package com.hbase;import org.apache.hadoop.conf.Configuration;import org.apache.hadoop.hbase.HBaseConfiguration;import org.apache.hadoop.hbase.HColumnDescriptor;import org.apache.hadoop.hbase...
2018-08-25 12:03:51
290
原创 zookeeper Java基本操作
package com.zookeeper.example;import org.apache.logging.log4j.LogManager;import org.apache.logging.log4j.Logger;import org.apache.zookeeper.*;import org.apache.zookeeper.data.Stat;import java....
2018-08-25 11:57:26
325
原创 单例模式设置mysql数据库连接池
package com.nbugs.config;import com.mchange.v2.c3p0.ComboPooledDataSource;import java.beans.PropertyVetoException;import java.sql.Connection;import java.sql.PreparedStatement;import java.sql.R...
2018-08-10 13:58:06
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原创 ftp 文件上传与删除
/** * 初始化ftp服务器 */ private FTPClient initFtpClient() throws Exception { String host = FamousClassRoomPropertiesConfig.getZjeduFileUploadHost(); int port = FamousClassRoo...
2018-08-01 13:53:43
1323
原创 redis 的常用方法使用
@Component(value = "redisManage")public class RedisManageImpl implements RedisManage { private static final ILog logger= LogFactory.getLog(RedisManageImpl.class); private static JedisPool r...
2018-08-01 13:15:27
363
原创 apache HttpClient使用
httpget:public static String doGet(String uri, Map<String, String> prames) throws Exception { String srtResult = ""; for (String key : prames.keySet()) { if (uri.c...
2018-08-01 13:08:30
224
转载 hadoop yarn 跟 hdfs 原理介绍
https://blog.youkuaiyun.com/zonzereal/article/details/78095110
2018-08-01 10:23:20
437
原创 Hadoop3.1.0完全分布式集群部署
Hadoop3.1.0完全分布式集群部署，三台服务器部署结构如下#部署完成后root@servera:/opt/hadoop/hadoop-3.1.0# jps14056 SecondaryNameNode14633 Jps13706 NameNode14317 ResourceManagerroot@serverb:~# jps5288 NodeManager5162...
2018-07-05 08:30:39
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