編譯完成的 Hadoop 2.2.0 版，官方只提供 hadoop-2.2.0.tar.gz，根據下面這篇，至少有2個 Library 是 32-bit 的，是否還有其他的呢？
[研究] Hadoop 2.2.0 編譯 (CentOS 6.4 x64)
http://shaurong.blogspot.tw/2013/11/hadoop-220-centos-64-x64.html
開始測試
[root@localhost ~]# wget http://ftp.mirror.tw/pub/apache/hadoop/common/hadoop-2.2.0/hadoop-2.2.0.tar.gz
[root@localhost ~]# tar zxvf hadoop-2.2.0.tar.gz -C /usr/local
[root@localhost ~]# cd /usr/local/hadoop-2.2.0
測試一下準備要執行命令列表
[root@localhost hadoop-2.2.0]# find | awk '{print "file " i$0}' i=`pwd`'/' | head -n 10
file /usr/local/hadoop-2.2.0/.
file /usr/local/hadoop-2.2.0/./README.txt
file /usr/local/hadoop-2.2.0/./share
file /usr/local/hadoop-2.2.0/./share/doc
file /usr/local/hadoop-2.2.0/./share/doc/hadoop
file /usr/local/hadoop-2.2.0/./share/doc/hadoop/index.html
file /usr/local/hadoop-2.2.0/./share/doc/hadoop/dependency-analysis.html
file /usr/local/hadoop-2.2.0/./share/doc/hadoop/hadoop-rumen
file /usr/local/hadoop-2.2.0/./share/doc/hadoop/hadoop-rumen/dependency-analysis.html
file /usr/local/hadoop-2.2.0/./share/doc/hadoop/hadoop-rumen/css
把要執行命令列表輸出到 1.sh 檔案
[root@localhost hadoop-2.2.0]# find | awk '{print "file " i$0}' i=`pwd`'/' > 1.sh
設定為可執行
[root@localhost hadoop-2.2.0]# chmod +x > 1.sh
執行，抓出包含字串 32-bit 的
[root@localhost hadoop-2.2.0]# ./1.sh | grep 32-bit
/usr/local/hadoop-2.2.0/./bin/container-executor: ELF 32-bit LSB executable, Intel 80386, version 1 (SYSV), dynamically linked (uses shared libs), for GNU/Linux 2.6.18, not stripped
/usr/local/hadoop-2.2.0/./bin/test-container-executor: ELF 32-bit LSB executable, Intel 80386, version 1 (SYSV), dynamically linked (uses shared libs), for GNU/Linux 2.6.18, not stripped
/usr/local/hadoop-2.2.0/./lib/native/libhdfs.so.0.0.0: ELF 32-bit LSB shared object, Intel 80386, version 1 (SYSV), dynamically linked, not stripped
/usr/local/hadoop-2.2.0/./lib/native/libhadoop.so.1.0.0: ELF 32-bit LSB shared object, Intel 80386, version 1 (SYSV), dynamically linked, not stripped
[root@localhost hadoop-2.2.0]#
後兩個是 Library，不能直接執行；前兩個是可執行程式，執行看看
[root@localhost hadoop-2.2.0]# /usr/local/hadoop-2.2.0/./bin/container-executor
-bash: /usr/local/hadoop-2.2.0/./bin/container-executor: /lib/ld-linux.so.2: bad ELF interpreter: No such file or directory
[root@localhost hadoop-2.2.0]# /usr/local/hadoop-2.2.0/./bin/test-container-executor
-bash: /usr/local/hadoop-2.2.0/./bin/test-container-executor: /lib/ld-linux.so.2: bad ELF interpreter: No such file or directory
確實不能執行，所以 hadoop-2.2.0.tar.gz 有4個檔案是 32-bit 專用的
./bin/container-executor
./bin/test-container-executor
./lib/native/libhdfs.so.0.0.0
./lib/native/libhadoop.so.1.0.0
(完)
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