》bin/hdfs dfs -put readme.txt /finance 》bin/hdfs dfs -du -s /finance
》 /finance 》bin/hdfs dfsadmin -setSpaceQuota /finance
设置/finance的大小上限为4000个字节 》bin/hdfs dfs -put readme1.txt /finance
由于已经超出4000个字节，则会报错 // :: WARN hdfs.DFSClient: DataStreamer Exception
org.apache.hadoop.hdfs.protocol.DSQuotaExceededException: The DiskSpace quota of /finance is exceeded: quota = 4000【配额】 B = 3.91 KB but diskspace consumed = 268443258【消耗】 B = 256.01 MB
at org.apache.hadoop.hdfs.server.namenode.INodeDirectoryWithQuota.verifyQuota(INodeDirectoryWithQuota.java:)
at org.apache.hadoop.hdfs.server.namenode.FSDirectory.verifyQuota(FSDirectory.java:)
at org.apache.hadoop.hdfs.server.namenode.FSDirectory.updateCount(FSDirectory.java:)
at org.apache.hadoop.hdfs.server.namenode.FSDirectory.updateCount(FSDirectory.java:)
at org.apache.hadoop.hdfs.server.namenode.FSDirectory.addBlock(FSDirectory.java:)
at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.saveAllocatedBlock(FSNamesystem.java:)
at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.getAdditionalBlock(FSNamesystem.java:)
at org.apache.hadoop.hdfs.server.namenode.NameNodeRpcServer.addBlock(NameNodeRpcServer.java:)
at org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolServerSideTranslatorPB.addBlock(ClientNamenodeProtocolServerSideTranslatorPB.java:) 》bin/hdfs dfsadmin -clrSpaceQuota /finance 将配额清除掉
》bin/hdfs dfs -put readme1.txt /finance 这次上传就不会错了~ [apache-nutch-1.2.rar 大约248M]
bin/hdfs fsck /finance/apache-nutch-1.2.rar
bin/hdfs fsck /finance/apache-nutch-1.2.rar -files -blocks -locations 将列出block在哪个位置
bin/hdfs dfs -stat "%o %r" /finance/apache-nutch-1.2.rar 查看某个文件有几个副本，及每个block的大小~~~
