我是Hortonworks沙盒的新手。我正在尝试从这个链接在我的系统(ubuntu-14.04)上手动设置它。
http://docs.hortonworks.com/HDPDocuments/HDP2/HDP-2.2.4/HDP_Man_Install_v224/index.html validating_core_hadoop .
执行以下命令后，运行Datanode。
/usr/hdp/current/hadoop-hdfs-datanode/../hadoop/sbin/hadoop-daemon.sh --config $HADOOP_CONF_DIR start datanode
Datanode进程未启动。日志文件中也没有错误。
这是我的日志文件内容
ulimit -a for secure datanode user hdfs
core file size (blocks, -c) 0
data seg size (kbytes, -d) unlimited
scheduling priority (-e) 0
file size (blocks, -f) unlimited
pending signals (-i) 62916
max locked memory (kbytes, -l) 64
max memory size (kbytes, -m) unlimited
open files (-n) 1024
pipe size (512 bytes, -p) 8
POSIX message queues (bytes, -q) 819200
real-time priority (-r) 0
stack size (kbytes, -s) 8192
cpu time (seconds, -t) unlimited
max user processes (-u) 62916
virtual memory (kbytes, -v) unlimited
file locks (-x) unlimited
下面是日志文件
的内容 2015-05-19 10:37:36,626 INFO datanode.DataNode StringUtils.java:startupShutdownMessage(633)) - STARTUP_MSG:
java.jar:/usr/share/java/mysql.jar::/usr/share/java/mysql-connector-java-5.1.28.jar:/usr/share/java/mysql-connector-java.jar:/usr/share/java/mysql.jar:
STARTUP_MSG: build = git@github.com:hortonworks/hadoop.git -r 22a563ebe448969d07902aed869ac13c652b2872; compiled by 'jenkins' on 2015-03-31T19:40Z
STARTUP_MSG: java = 1.7.0_80
************************************************************/
2015-05-19 10:37:36,631 INFO datanode.DataNode (SignalLogger.java:register(91)) - registered UNIX signal handlers for [TERM, HUP, INT]
2015-05-19 10:37:36,680 WARN common.Util (Util.java:stringAsURI(56)) - Path /grid/hadoop/hdfs/dn should be specified as a URI in configuration files. Please update hdfs configuration.
2015-05-19 10:37:36,681 WARN common.Util (Util.java:stringAsURI(56)) - Path /grid1/hadoop/hdfs/dn should be specified as a URI in configuration files. Please update hdfs configuration.
2015-05-19 10:37:36,681 WARN common.Util (Util.java:stringAsURI(56)) - Path grid2/hadoop/hdfs/dn should be specified as a URI in configuration files. Please update hdfs configuration.
2015-05-19 10:37:36,747 WARN datanode.DataNode (DataNode.java:checkStorageLocations(2284)) - Invalid dfs.datanode.data.dir /grid/hadoop/hdfs/dn :
java.io.FileNotFoundException: File file:/grid/hadoop/hdfs/dn does not exist
at org.apache.hadoop.fs.RawLocalFileSystem.deprecatedGetFileStatus(RawLocalFileSystem.java:608)
at org.apache.hadoop.fs.RawLocalFileSystem.getFileLinkStatusInternal(RawLocalFileSystem.java:821)
at org.apache.hadoop.fs.RawLocalFileSystem.getFileStatus(RawLocalFileSystem.java:598)
at org.apache.hadoop.fs.FilterFileSystem.getFileStatus(FilterFileSystem.java:414)
at org.apache.hadoop.util.DiskChecker.mkdirsWithExistsAndPermissionCheck(DiskChecker.java:139)
at org.apache.hadoop.util.DiskChecker.checkDir(DiskChecker.java:156)
at org.apache.hadoop.hdfs.server.datanode.DataNode$DataNodeDiskChecker.checkDir(DataNode.java:2239)
at org.apache.hadoop.hdfs.server.datanode.DataNode.checkStorageLocations(DataNode.java:2281)
at org.apache.hadoop.hdfs.server.datanode.DataNode.makeInstance(DataNode.java:2263)
at org.apache.hadoop.hdfs.server.datanode.DataNode.instantiateDataNode(DataNode.java:2155)
at org.apache.hadoop.hdfs.server.datanode.DataNode.createDataNode(DataNode.java:2202)
at org.apache.hadoop.hdfs.server.datanode.DataNode.secureMain(DataNode.java:2378)
at org.apache.hadoop.hdfs.server.datanode.SecureDataNodeStarter.start(SecureDataNodeStarter.java:78)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at org.apache.commons.daemon.support.DaemonLoader.start(DaemonLoader.java:243)
2015-05-19 10:37:36,748 WARN datanode.DataNode (DataNode.java:checkStorageLocations(2284)) - Invalid dfs.datanode.data.dir /grid1/hadoop/hdfs/dn :
java.io.FileNotFoundException: File file:/grid1/hadoop/hdfs/dn does not exist
at org.apache.hadoop.fs.RawLocalFileSystem.deprecatedGetFileStatus(RawLocalFileSystem.java:608)
at org.apache.hadoop.fs.RawLocalFileSystem.getFileLinkStatusInternal(RawLocalFileSystem.java:821)
at org.apache.hadoop.fs.RawLocalFileSystem.getFileStatus(RawLocalFileSystem.java:598)
at org.apache.hadoop.fs.FilterFileSystem.getFileStatus(FilterFileSystem.java:414)
at org.apache.hadoop.util.DiskChecker.mkdirsWithExistsAndPermissionCheck(DiskChecker.java:139)
at org.apache.hadoop.util.DiskChecker.checkDir(DiskChecker.java:156)
at org.apache.hadoop.hdfs.server.datanode.DataNode$DataNodeDiskChecker.checkDir(DataNode.java:2239)
at org.apache.hadoop.hdfs.server.datanode.DataNode.checkStorageLocations(DataNode.java:2281)
at org.apache.hadoop.hdfs.server.datanode.DataNode.makeInstance(DataNode.java:2263)
at org.apache.hadoop.hdfs.server.datanode.DataNode.instantiateDataNode(DataNode.java:2155)
at org.apache.hadoop.hdfs.server.datanode.DataNode.createDataNode(DataNode.java:2202)
at org.apache.hadoop.hdfs.server.datanode.DataNode.secureMain(DataNode.java:2378)
at org.apache.hadoop.hdfs.server.datanode.SecureDataNodeStarter.start(SecureDataNodeStarter.java:78)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at org.apache.commons.daemon.support.DaemonLoader.start(DaemonLoader.java:243)
2015-05-19 10:37:36,749 WARN datanode.DataNode (DataNode.java:checkStorageLocations(2284)) - Invalid dfs.datanode.data.dir /usr/hdp/2.2.4.2-2/hadoop/grid2/hadoop/hdfs/dn :
java.io.FileNotFoundException: File file:/usr/hdp/2.2.4.2-2/hadoop/grid2/hadoop/hdfs/dn does not exist
at org.apache.hadoop.fs.RawLocalFileSystem.deprecatedGetFileStatus(RawLocalFileSystem.java:608)
at org.apache.hadoop.fs.RawLocalFileSystem.getFileLinkStatusInternal(RawLocalFileSystem.java:821)
at org.apache.hadoop.fs.RawLocalFileSystem.getFileStatus(RawLocalFileSystem.java:598)
at org.apache.hadoop.fs.FilterFileSystem.getFileStatus(FilterFileSystem.java:414)
at org.apache.hadoop.util.DiskChecker.mkdirsWithExistsAndPermissionCheck(DiskChecker.java:139)
at org.apache.hadoop.util.DiskChecker.checkDir(DiskChecker.java:156)
at org.apache.hadoop.hdfs.server.datanode.DataNode$DataNodeDiskChecker.checkDir(DataNode.java:2239)
at org.apache.hadoop.hdfs.server.datanode.DataNode.checkStorageLocations(DataNode.java:2281)
at org.apache.hadoop.hdfs.server.datanode.DataNode.makeInstance(DataNode.java:2263)
at org.apache.hadoop.hdfs.server.datanode.DataNode.instantiateDataNode(DataNode.java:2155)
at org.apache.hadoop.hdfs.server.datanode.DataNode.createDataNode(DataNode.java:2202)
at org.apache.hadoop.hdfs.server.datanode.DataNode.secureMain(DataNode.java:2378)
at org.apache.hadoop.hdfs.server.datanode.SecureDataNodeStarter.start(SecureDataNodeStarter.java:78)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at org.apache.commons.daemon.support.DaemonLoader.start(DaemonLoader.java:243)
2015-05-19 10:37:36,749 FATAL datanode.DataNode (DataNode.java:secureMain(2385)) - Exception in secureMain
java.io.IOException: All directories in dfs.datanode.data.dir are invalid: "/grid/hadoop/hdfs/dn" "/grid1/hadoop/hdfs/dn" "/usr/hdp/2.2.4.2-2/hadoop/grid2/hadoop/hdfs/dn"
at org.apache.hadoop.hdfs.server.datanode.DataNode.checkStorageLocations(DataNode.java:2290)
at org.apache.hadoop.hdfs.server.datanode.DataNode.makeInstance(DataNode.java:2263)
at org.apache.hadoop.hdfs.server.datanode.DataNode.instantiateDataNode(DataNode.java:2155)
at org.apache.hadoop.hdfs.server.datanode.DataNode.createDataNode(DataNode.java:2202)
at org.apache.hadoop.hdfs.server.datanode.DataNode.secureMain(DataNode.java:2378)
at org.apache.hadoop.hdfs.server.datanode.SecureDataNodeStarter.start(SecureDataNodeStarter.java:78)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at org.apache.commons.daemon.support.DaemonLoader.start(DaemonLoader.java:243)
2015-05-19 10:37:36,751 INFO util.ExitUtil (ExitUtil.java:terminate(124)) - Exiting with status 1
2015-05-19 10:37:36,752 INFO datanode.DataNode (StringUtils.java:run(659)) - SHUTDOWN_MSG:
/************************************************************
SHUTDOWN_MSG: Shutting down DataNode at arjun-ubuntu1404/127.0.1.1
更重要的是，这是我在控制台的内容。
root@arjun-ubuntu1404:/# /usr/hdp/current/hadoop-hdfs-datanode/../hadoop/sbin/hadoop-daemon.sh --config $HADOOP_CONF_DIR start datanode
starting datanode, logging to /var/log/hadoop/hdfs/hadoop-hdfs-datanode-arjun-ubuntu1404.out
root@arjun-ubuntu1404:/# jps
5240 SecondaryNameNode
5017 NameNode
6368 Jps
如何解决这个问题?
首先删除hdfs文件夹中的所有内容:
hadoop.tmp.dir值
rm -rf /grid/hadoop/hdfs
确保dir有正确的所有者和权限
(用户名根据您的系统)
sudo chown hduser:hadoop -R /grid/hadoop/hdfs
sudo chmod 777 -R /grid/hadoop/hdfs
格式化namenode:
hadoop namenode -format
Try this:
sudo chown -R hdfs:hadoop /grid/hadoop/hdfs/dn
sudo chmod -R 755 /grid/hadoop/hdfs/dn
重新启动所有进程