我已经安装了hadoop集群和配置单元,但当我创建新表时,它返回以下错误
hive> create table newtb (a int, b int, c int) ROW FORMAT DELIMITED FIELDS TERMINATED BY '\t';
Moved: 'hdfs://hadoop-master:54310/user/hive/warehouse/newtb' to trash at: hdfs://hadoop-master:54310/user/hadoop/.Trash/Current
Moved: 'hdfs://h
我得到的例外是,
2011-07-13 12:04:13,006 ERROR org.apache.hadoop.hdfs.server.namenode.NameNode: java.io.FileNotFoundException: File does not exist: /opt/data/tmp/mapred/system/job_201107041958_0120/j^@^@^@^@^@^@
at org.apache.hadoop.hdfs.server.namenode.FSDirectory.unprotectedSetPermission(FSDirecto
尝试在我的ubuntu机器上本地运行hadoop 2.3.0,尝试格式化hdfs namenode,我收到以下错误:
/usr/local/hadoop/hadoop-hdfs-project/hadoop-hdfs/src/main/bin/hdfs:
line 34:
/usr/local/hadoop/hadoop-hdfs-project/hadoop-hdfs/src/main/bin/../libexec/hdfs-config.sh:
No such file or directory
/usr/local/hadoop/hadoop-hdfs-project/hadoop-hd
当我试图在HDFS中追加一个文件时,我会得到以下异常。请指教
file.append(new Path(uri));
异常
java.lang.NullPointerException
at org.apache.hadoop.hdfs.DFSOutputStream.isLazyPersist(DFSOutputStream.java:1709)
at org.apache.hadoop.hdfs.DFSOutputStream.getChecksum4Compute(DFSOutputStream.java:1550)
at org.apache.hadoop.hd
最近我们已经升级到CDH 5.1.3 & YARN,我们在mapreduce作业中得到以下错误
at org.apache.hadoop.ipc.RemoteException.unwrapRemoteException(RemoteException.java:73) [1829/1922]
at org.apache.hadoop.hdfs.DFSClient.callGetBlockLocations(DFSClient.java:1140)
at org.apache.hadoop.hdfs
我使用的是3节点hdfs群集,它在过去几个月中运行良好,但从几天开始,我在其中一个namenode的日志中频繁出现异常,它是活动节点,但由于此错误,hdfs故障切换到辅助namenode,虽然一切正常,但我想解决此问题,请建议:-
org.apache.hadoop.hdfs.server.namenode.TransferFsImage$HttpGetFailedException: Fetch of http://nn1.cluster.com:8480/getJournal?jid=ha-cluster&segmentTxId=827873&storageInfo
在HDFS集群中启动数据阳极时,会遇到以下错误
2016-01-06 22:54:58,064 INFO org.apache.hadoop.hdfs.server.common.Storage:存储目录DISKfile:/home/data/hdfs/dn/已被使用。2016-01-06 22:54:58,082 INFO org.apache.hadoop.hdfs.server.common.Storage:分析bpid的存储目录-1354640905-10.146.52.232-1452117061014 2016-01-06 22:54:58,083警告org.apache.had
我在Hive中创建了一个名为示例的表。
CREATE TABLE example (id INT, name STRING, number STRING);
但是,当尝试插入一些参数时,会出现如下错误。
Insert into table example values (1,'Sample Data','1234123412341234')
18/04/30 13:26:46 HiveServer2 2-背景-池:线程-40:警告security.UserGroupInformation: PriviledgedActionException as:roo
我安装了Hadoop2.6,一切似乎都正常。然后,我重新启动了所有机器,而没有首先停止dfs,下面是错误信息。有办法解决吗?
$ ./sbin/start-dfs.sh
./sbin/start-dfs.sh: line 55: $hadoop/bin/bin/hdfs: No such file or directory
Starting namenodes on []
./sbin/start-dfs.sh: line 60: $hadoop/bin/sbin/hadoop-daemons.sh: No such file or directory
./sbin/start-dfs.s
在完成hadoop的设置之后,当我尝试运行hadoop时,我发现(通过jps) namenode没有运行。我在日志文件中进行了搜索,发现了一个异常,即"Directory /hadoop/tmp/dfs/name is in an inconsistent state: storage directory is not存在或者不可访问“。所以我通过sudo mkdir -p /hadoop/tmp/dfs/name在/hadoop/tmp/dfs/name中创建了i目录,并赋予了这个完全的权限。现在,在重启hadoop之后,我发现namenode仍然没有被格式化,并且我发现了这个异常&
在Json中转换DataFrame,在MongoDB集合中保存后添加列名,如所需的输出技巧和建议所示
Python作为输入
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java hadoop java hdfs c c++ php python html
c c c++ hdfs python hadoop java php html
c++ c++ c python hdfs
我在mac os上使用homebrew安装hadoop 3.1.1。
core-site.xml配置如下:
<configuration>
<property>
<name>hadoop.tmp.dir</name>
<value>file:///Users/yishuihanxiao/Personal_Home/ws/DB_Data/hadoop/hdfs/tmp</value>
<description>A base for other tempora