org.apache.hadoop.hdfs.server.namenode.SafeModeException: Cannot create directory /hypertable/servers/master/log/mml. Name node is in safe mode. Resources are low on NN. Safe mode must be turned off manually.

Google Groups | Unknown author | 3 years ago
  1. 0

    Hypertable error!!

    Google Groups | 3 years ago | Unknown author
    org.apache.hadoop.hdfs.server.namenode.SafeModeException: Cannot create directory /hypertable/servers/master/log/mml. Name node is in safe mode. Resources are low on NN. Safe mode must be turned off manually.
  2. 0

    Creating a table in Hive and getting the below error. Can anyone help me? | LinkedIn

    linkedin.com | 1 year ago
    org.apache.hadoop.hdfs.server.namenode.SafeModeException: Cannot create directory /user/hive/warehouse/x. Name node is in safe mode. The ratio of reported blocks 0.0000 has not reached the threshold 0.9990. Safe mode will be turned off automatically.
  3. 0

    Problem with MR job

    Google Groups | 5 years ago | George Kousiouris
    org.apache.hadoop.hdfs.server.namenode.SafeModeException: Cannot create directory /var/lib/hadoop-0.20/cache/hdfs/mapred/system. Name nod$ The reported blocks 0 needs additional 12 blocks to reach the threshold 0.9990 of total blocks 13. Safe mode will be turned off automatically.
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  5. 0

    Error in creating database in Hive

    Stack Overflow | 2 months ago | valli n
    org.apache.hadoop.hdfs.server.namenode.SafeModeException: Cannot create directory /user/hive/warehouse/emp.db. Name node is in safe mode. The ratio of reported blocks 0.9091 has not reached the threshold 0.9990. Safe mode will be turned off automatically.
  6. 0

    Cloudera Hadoop 500 Error

    Stack Overflow | 2 years ago
    org.apache.hadoop.hdfs.server.namenode.SafeModeException: Cannot issue delegation token. Name node is in safe mode. Resources are low on NN. Please add or free up more resources then turn off safe mode manually. NOTE: If you turn off safe mode before adding resources, the NN will immediately return to safe mode..

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    Root Cause Analysis

    1. org.apache.hadoop.hdfs.server.namenode.SafeModeException

      Cannot create directory /hypertable/servers/master/log/mml. Name node is in safe mode. Resources are low on NN. Safe mode must be turned off manually.

      at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.mkdirsInternal()
    2. Apache Hadoop HDFS
      NameNode.mkdirs
      1. org.apache.hadoop.hdfs.server.namenode.FSNamesystem.mkdirsInternal(FSNamesystem.java:2140)
      2. org.apache.hadoop.hdfs.server.namenode.FSNamesystem.mkdirs(FSNamesystem.java:2114)
      3. org.apache.hadoop.hdfs.server.namenode.NameNode.mkdirs(NameNode.java:892)
      3 frames
    3. Java RT
      Method.invoke
      1. sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
      2. sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
      3. sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
      4. java.lang.reflect.Method.invoke(Method.java:606)
      4 frames
    4. Hadoop
      Server$Handler$1.run
      1. org.apache.hadoop.ipc.RPC$Server.call(RPC.java:557)
      2. org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:1439)
      3. org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:1435)
      3 frames
    5. Java RT
      Subject.doAs
      1. java.security.AccessController.doPrivileged(Native Method)
      2. javax.security.auth.Subject.doAs(Subject.java:415)
      2 frames
    6. Hadoop
      Server$Handler.run
      1. org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1278)
      2. org.apache.hadoop.ipc.Server$Handler.run(Server.java:1433)
      2 frames