Taiwan Hadoop Forum

RT,namenode写入本地edits时，是否会同时写入远程secondarynamenode?

Secondary NameNode 只有負責協助每小時合併 fsimage 跟 edits，
所以如果需要另外一份 edits，請直接寫兩個寫入路徑在 hdfs-site.xml 指定 dfs.name.dir

<name>dfs.name.dir</name>
<value>${hadoop.tmp.dir}/dfs/name , ${NFS mount PATH} </value>
<description>Determines where on the local filesystem the DFS name node
should store the name table(fsimage). If this is a comma-delimited list
of directories then the name table is replicated in all of the
directories, for redundancy. </description>

- Jazz

谢谢，都忘记这个帖了，是默认每小时从远程取元数据文件取过来.