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Changes between Version 1 and Version 2 of 0428Hadoop_Lab4


Ignore:
Timestamp:
Apr 26, 2009, 1:53:30 AM (17 years ago)
Author:
waue
Comment:

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  • 0428Hadoop_Lab4

    v1 v2  
    11
     2= 動態加入datanode 與 tasktracker =
     3
     4 * 是否能連到正確的namenode取決於conf/hadoop-site.xml，目前測試結果與conf/slave、masters無關
     5
     6{{{
     7$ bin/hadoop-daemon.sh --config ./conf start datanode
     8
     9starting datanode, logging to /tmp/hadoop/logs/hadoop-waue-datanode-Dx7200.out
     10}}}
     11
     12{{{
     13$ bin/hadoop-daemon.sh --config ./conf start tasktracker
     14
     15starting tasktracker, logging to /tmp/hadoop/logs/hadoop-waue-tasktracker-Dx7200.out
     16}}}
     17
     18-----
     19= balancer  =
     20用於分析數據塊分佈和重新平衡!DataNode上的數據分佈
     21
     22{{{
     23$ bin/hadoop balancer
     24
     25Time Stamp               Iteration#  Bytes Already Moved  Bytes Left To Move  Bytes Being Moved
     2609/04/01 18:00:08 INFO net.NetworkTopology: Adding a new node: /default-rack/140.110.138.191:50010
     2709/04/01 18:00:08 INFO net.NetworkTopology: Adding a new node: /default-rack/140.110.141.129:50010
     2809/04/01 18:00:08 INFO dfs.Balancer: 0 over utilized nodes:
     2909/04/01 18:00:08 INFO dfs.Balancer: 0 under utilized nodes:
     30The cluster is balanced. Exiting...
     31Balancing took 186.0 milliseconds
     32}}}
    233
    334