Changes between Version 65 and Version 66 of jazz/ClassCloud_LiveCD

Timestamp:

May 13, 2011, 12:38:40 AM (15 years ago)

Author:

jazz

Comment:

--

jazz/ClassCloud_LiveCD

@@ -336 +336 @@
  # convert relative path to absolute path
 }}}
+
+== 2011-05-13 ==
+
+ * <TODO> 參考 '''[http://frederikkonietzny.de/wp/2010/11/14/hadoop-cluster-setup-on-debian-lenny/ Hadoop Cluster Setup on Debian Lenny]''' 這篇文章，把 Hadoop 的 NameNode High Availability (HA) 實作一次。（加入 DRBD、Hearbeat等）
+ * <註> 這篇文章居然連 Rack-aware 也寫了！！真是強者！！
+{{{
+#!sh
+~$ cat > /usr/local/bin/rack.py << “EOF”
+#!/usr/bin/env python
+
+”’
+This script used by hadoop to determine network/rack topology.  It  
+should be specified in hadoop-site.xml via topology.script.file.name
+Property.
+
+topology.script.file.name
+/home/hadoop/topology.py
+
+”’
+
+import sys 
+from string import join
+
+DEFAULT_RACK = ‘/default/rack0′;
+
+RACK_MAP = { ’10.4.0.1′ : ‘/datacenter1/rack1′,
+
+’10.4.0.2′ : ‘/datacenter1/rack1′,
+
+’10.4.0.3′ : ‘/datacenter1/rack1′,
+
+’10.4.0.4′ : ‘/datacenter1/rack1′,
+’10.4.0.5′ : ‘/datacenter1/rack1′,
+’10.4.0.6′ : ‘/datacenter1/rack1′,
+
+’10.4.0.250′ : ‘/datacenter1/rack1′,
+}
+
+if len(sys.argv)==1:
+print DEFAULT_RACK
+else:
+print join([RACK_MAP.get(i, DEFAULT_RACK) for i in sys.argv[1:]],” “)
+
+EOF
+}}}