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FSimage is corrupted on one of the journal node. What will be procedure to recover?

FSimage is corrupted on one of the journal node. What will be procedure to recover?

New Contributor

FSimage is corrupted on one of the journal node. What will be procedure to recove?

2 REPLIES 2

Re: FSimage is corrupted on one of the journal node. What will be procedure to recover?

Master Collaborator

@mayank1996 You could try below: 

  1. ./bin/hadoop namenode -recover

  2. Then initialisation 

    ./bin/hdfs namenode -initializeSharedEdits

    I would encourage you to go through go through the Cloudera Blog https://blog.cloudera.com/understanding-hdfs-recovery-processes-part-1/ and https://blog.cloudera.com/understanding-hdfs-recovery-processes-part-2/ for better understanding. 

The community discussion will also help you to resolve the issue. 

Check out this one as well http://www.augmentedintel.com/wordpress/index.php/recover-corrupt-hdfs-namenode/ 


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Re: FSimage is corrupted on one of the journal node. What will be procedure to recover?

Explorer

FSimage not in the journalnode,maybe the editlog is corrupted?

you can copy the editlog from another healthy journal node overwrite the unhealthy one.