https://community.cloudera.com/t5/Archives-of-Support-Questions/namenode-is-in-safe-mode/m-p/205459#M73945 <P>from the logs we can see that </P><P>what is the command to get name not not in safe mode ? </P><PRE> at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1866) at org.apache.hadoop.ipc.Server$Handler.run(Server.java:2345) Caused by: org.apache.hadoop.hdfs.server.namenode.SafeModeException: Cannot create file/spark2-history/.cffb30ea-b88b-4044-8e1d-017039458f94. Name node is in safe mode. The reported blocks 4 needs additional 10 blocks to reach the threshold 0.9900 of total blocks 14. The number of live datanodes 3 has reached the minimum number 0. Safe mode will be turned off automatically once the thresholds have been reached. at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.checkNameNodeSafeMode(FSNamesystem.java:1391) ... 13 more</PRE> Sun, 28 Jan 2018 05:59:17 GMT mike_bronson7 2018-01-28T05:59:17Z https://community.cloudera.com/t5/Archives-of-Support-Questions/namenode-is-in-safe-mode/m-p/205459#M73945 <P>from the logs we can see that </P><P>what is the command to get name not not in safe mode ? </P><PRE> at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1866) at org.apache.hadoop.ipc.Server$Handler.run(Server.java:2345) Caused by: org.apache.hadoop.hdfs.server.namenode.SafeModeException: Cannot create file/spark2-history/.cffb30ea-b88b-4044-8e1d-017039458f94. Name node is in safe mode. The reported blocks 4 needs additional 10 blocks to reach the threshold 0.9900 of total blocks 14. The number of live datanodes 3 has reached the minimum number 0. Safe mode will be turned off automatically once the thresholds have been reached. at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.checkNameNodeSafeMode(FSNamesystem.java:1391) ... 13 more</PRE> Sun, 28 Jan 2018 05:59:17 GMT https://community.cloudera.com/t5/Archives-of-Support-Questions/namenode-is-in-safe-mode/m-p/205459#M73945 mike_bronson7 2018-01-28T05:59:17Z https://community.cloudera.com/t5/Archives-of-Support-Questions/namenode-is-in-safe-mode/m-p/205460#M73946 <P>hdfs dfsadmin -safemode leave</P> Sun, 28 Jan 2018 06:17:53 GMT https://community.cloudera.com/t5/Archives-of-Support-Questions/namenode-is-in-safe-mode/m-p/205460#M73946 mike_bronson7 2018-01-28T06:17:53Z https://community.cloudera.com/t5/Archives-of-Support-Questions/namenode-is-in-safe-mode/m-p/205461#M73947 <P>Command To Check SafeMode On/Off: hdfs dfsadmin -safemode get</P><P>Command To Get Out Of Safe Mode Shared Above.</P> Wed, 31 Jan 2018 18:04:20 GMT https://community.cloudera.com/t5/Archives-of-Support-Questions/namenode-is-in-safe-mode/m-p/205461#M73947 smdas 2018-01-31T18:04:20Z https://community.cloudera.com/t5/Archives-of-Support-Questions/namenode-is-in-safe-mode/m-p/395574#M73948 <P>Why is it namenode become safe mode?</P> Mon, 21 Oct 2024 01:11:50 GMT https://community.cloudera.com/t5/Archives-of-Support-Questions/namenode-is-in-safe-mode/m-p/395574#M73948 ajitg2k24 2024-10-21T01:11:50Z