Changes between Version 11 and Version 12 of jazz/DRBL_Hadoop

Timestamp:

Nov 7, 2008, 7:09:26 PM (16 years ago)

Author:

jazz

Comment:

--

jazz/DRBL_Hadoop

@@ -113 +113 @@
  exit 0
 }}}
- * edit rc.local for DRBL client as datanode
+ * edit hadoop_datanode for DRBL client as datanode
 {{{
-~$ cat > rc.local << EOF
+~$ cat > hadoop_datanode << EOF
 }}}
 {{{
-#!/bin/sh -e
-echo 3 > /proc/sys/vm/drop_caches
-/home/jazz/hadoop-0.18.2/bin/hadoop-daemon.sh start datanode
+#! /bin/sh
+set -e
+
+# /etc/init.d/hadoop_datanode: start and stop Hadoop DFS datanode for DRBL Client
+
+export PATH="${PATH:+$PATH:}/usr/sbin:/sbin"
+
+case "\$1" in
+  start)
+        echo -n "mounting /boot:"
+        /home/jazz/hadoop-0.18.2/bin/hadoop-daemon.sh start datanode
+        echo "[OK]"
+        ;;
+  stop)
+        echo -n "unmounting /boot:"
+        /home/jazz/hadoop-0.18.2/bin/hadoop-daemon.sh stop datanode
+        echo "[OK]"
+        ;;
+
+  *)
+        echo "Usage: /etc/init.d/hadoop_datanode {start|stop}"
+        exit 1
+esac
+
 exit 0
 EOF
 }}}
 {{{
-~$ chmod a+x rc.local
-~$ sudo /opt/drbl/sbin/drbl-cp-host rc.local /etc/
-# 由於 DRBL Client 預設不會跑 rc.local，因此要手動加
-# 另外，為了避免執行 rc.local 時，硬碟還沒完成掛載動作，因此刻意把 rc.local 挪到最後才執行
-~$ sudo /opt/drbl/bin/drbl-doit update-rc.d rc.local defaults 99
+~$ chmod a+x hadoop_datanode
+~$ sudo /opt/drbl/sbin/drbl-cp-host hadoop_datanode /etc/init.d/
+~$ sudo /opt/drbl/bin/drbl-doit update-rc.d hadoop_datanode defaults 99
 }}}
  * shutdown DRBL clients