Dbkey of B-tree node is <num>:<num>:<num>

  Explanation:  This message gives the dbkey of the  B-tree  index
  node  so the integrity of the index can be verified manually, if
  necessary.

  User  Action:   Ascertain  if  index  is  corrupt  by   manually
  verifying  related  index  nodes  after  dumping  pages  of  the
  database.  If the index is corrupt, rebuild the index.