问题:
10/12/08 20:10:31 INFO hdfs.DFSClient: Could not obtain block blk_XXXXXXXXXXXXXXXXXXXXXX_YYYYYYYY from any node: java.io.IOException: No live nodes contain current block
解决:
An Hadoop HDFS datanode has an upper bound on the number of files that it will serve at any one time. The upper bound parameter is called xcievers (yes, this is misspelled). Again, before doing any loading, make sure you have configured Hadoop's conf/hdfs-site.xml setting the xceivers value to at least the following:
<property>
<name>dfs.datanode.max.xcievers</name>
<value>4096</value>
</property>
Be sure to restart your HDFS after making the above configuration.
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