close Warning: Can't synchronize with repository "(default)" (Unsupported version control system "svn": /usr/lib/python2.7/dist-packages/libsvn/_fs.so: failed to map segment from shared object: Cannot allocate memory). Look in the Trac log for more information.

Changes between Version 2 and Version 3 of Hinet110303/Demo1


Ignore:
Timestamp:
Mar 3, 2011, 1:35:46 PM (15 years ago)
Author:
jazz
Comment:

--

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  • Hinet110303/Demo1

    v2 v3  
    1212namespaceID = 773481889; datanode namespaceID = 174598545
    1313}}}
    14  * [解法] (1) 手動修改 ${hadoop.tmp.dir}/dfs/name/current/VERSION 改成跟現存 !DataNode 的namespaceID 一致，並重新啟動 !NameNode
    15  * [解法] (2) 手動修改 ${hadoop.tmp.dir}/dfs/data/current/VERSION 逐一把每個 !DataNode 的 namespaceID 改成跟新的 !NameNode 一致，並逐一重新啟動 !DataNode
     14 * [解法] 手動修改 ${hadoop.tmp.dir}/dfs/data/current/VERSION 逐一把每個 !DataNode 的 namespaceID 改成跟新的 !NameNode 一致，並逐一重新啟動 !DataNode
    1615{{{
    1716#!diff
    18 - namespaceID=773481889
    19 + namespaceID=174598545
     17- namespaceID=174598545
     18+ namespaceID=773481889
    2019}}}
    2120
    … …  
    7372$ cygstart wordpad logs/hadoop-${USER}-datanode-${HOSTNAME}.log
    7473}}}
    75  * 嘗試跟據解法(1)，修復 !NameNode 的 namespaceID。 - 修改 ${hadoop.tmp.dir}/dfs/name/current/VERSION 並使用以下指令重新啟動 namenode 與 datanode
     74 * 嘗試跟據解法，修復 !DataNode 的 namespaceID。 - 修改 ${hadoop.tmp.dir}/dfs/data/current/VERSION 並使用以下指令重新啟動 datanode
    7675{{{
    77 $ /opt/hadoop/bin/hadoop-daemon.sh stop namenode
    78 $ cygstart wordpad $(cygpath -w /cygdrive/c/var/hadoop/dfs/name/current/VERSION)
    79 $ /opt/hadoop/bin/hadoop-daemon.sh start namenode
     76$ cygstart wordpad $(cygpath -w /cygdrive/c/var/hadoop/dfs/data/current/VERSION)
    8077$ /opt/hadoop/bin/hadoop-daemon.sh start datanode
    8178}}}