Version 10 (modified by waue, 14 years ago) (diff) |
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hadoop 進階課程 課程大綱
時間 時數 課程內容 09:30~10:30 1.0h Hadoop & ecosystem 簡介 10:30~11:00 0.5h Map Reduce 原理說明 11:00~12:00 1 h Streaming & MapReduce compiler 12:00~13:30 1.5h - 午餐 13:30~14:00 0.5h 開發輔助工具 Eclipse | NetBeans? 14:00~14:30 0.5h Map Reduce 程式架構 14:30~15:00 0.5h 程式設計I- HDFS 操作 15:00~16:30 1.5h 程式設計II-範例程式
時間 時數 課程內容 09:30~11:00 1.5h HBase 簡介與架構 11:00~12:00 1 h HBase 安裝操作說明 12:00~13:30 1.5h - 午餐 13:30~14:30 1 h HBase 程式架構與範例 14:30~15:30 1h Hadoop + HBase + PHP 案例實務 15:30~16:30 1h hadoop + 關聯式資料庫
- 若出現以下錯誤
Caused by: java.lang.RuntimeException: com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
代表程式碼連線到 mysql 的設定方法有錯誤,通常是Mysql 只聽 localhost,但你讓他去連 your_ip ,導致出現這樣的訊息,
- 解決方法就是
- 連線到 local
DBConfiguration.configureDB(conf, "com.mysql.jdbc.Driver", "jdbc:mysql://localhost/school", "waue", "wauenchc");
- 讓mysql 可以遠端存取
mysql 遠端存取方法
修改 /etc/mysql/my.cnf
# bind-address 127.0.0.1 bind-address your_ip_address
$ sudo /etc/init.d/mysql restart $ mysql -u root -p mysql> grant all on school.* to waue identified by 'wauenchc' with grant option; mysql> exit $ mysql -h your_ip_address -u waue -p "wauenchc"
出現 mysql> 則代表成功
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- DBInputFormat.pdf (121.0 KB) - added by jazz 14 years ago.
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