JBoss Fuse/A-MQ: Master Slave Brokers can not obtain file lock on NFS 3 file system

Solution Verified - Updated -


  • Kahadb can not obtain a lock or create a directory when failing over. There are messages:
<path to kahadb> lock is locked... waiting 10 seconds for the database to be unlocked. Reason: java.io.IOException: Failed to create directory

in the server log file.


  • JBoss Fuse 6.*
  • JBoss A-MQ 6.*

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