Changes between Version 1 and Version 2 of Hinet130923/Lab12

Timestamp:

Sep 24, 2013, 1:04:03 PM (12 years ago)

Author:

jazz

Comment:

--

Hinet130923/Lab12

@@ -4 +4 @@
 
 = 實作十二 Lab12 =
+
+ * 下一個範例我們使用了一個 jar 的技巧，直接修改
+
+{{{
+  lab003/FsShell
+}}}
+
+
+  Excercise:
+  (1) What is the result of Path.CUR_DIR ?
+  (2) In local mode, which class is srcFs object ?
+  (3) In full distributed mode, which class is srcFs object ?
+  (4) Which classes are updated in hadoop-core-*.jar according to the difference between two jar files?
+  (5) Please observe the source code architecture in ${HOME}/hadoop/src/core/org/apache/hadoop/fs.
+      Which File Systems are supported by Hadoop 1.0.4?
+      (A) HDFS (hdfs://namenode:port)
+      (B) Amazon S3 (s3:// , s3n://)
+      (C) KFS 
+      (D) Local File System (file:///)
+      (F) FTP (ftp://user:passwd@ftp-server:port)
+      (G) RAMFS (ramfs://)
+      (H) HAR (Hadoop Archive Filesystem, har://underlyingfsscheme-host:port/archivepath or har:///archivepath )
+
+{{{
+cd ~/hadoop_labs/lab004
+ant
+hadoop fs -ls
+hadoop jar copyFromLocal.jar doc input
+hadoop fs -ls
+touch test
+hadoop jar copyFromLocal.jar test file
+hadoop fs -ls
+
+export HADOOP_CONF_DIR=~/hadoop/conf.local/
+hadoop fs -ls
+hadoop jar copyFromLocal.jar doc input
+hadoop fs -ls
+hadoop jar copyFromLocal.jar test file
+hadoop fs -ls
+unset HADOOP_CONF_DIR
+
+ant clean
+}}}
+
+== 實作習題 ==
+
+ <問題 1> 在全分散模式下，
+  (1) In full distributed mode, what do you see after running "hadoop fs -ls"?
+  (2) Change to local mode, what do you see after running "hadoop fs -ls"?