HBase Maintainence Tool

Usage: fsck [opts] {only tables}
 where [opts] are:
   -help Display help options (this)
   -details Display full report of all regions.
   -timelag {timeInSeconds}  Process only regions that  have not experienced any metadata updates in the last  {{timeInSeconds} seconds.
   -sleepBeforeRerun {timeInSeconds} Sleep this many seconds before checking if the fix worked if run with -fix
   -summary Print only summary of the tables and status.
   -metaonly Only check the state of ROOT and META tables.

  Metadata Repair options: (expert features, use with caution!)
   -fix              Try to fix region assignments.  This is for backwards compatiblity
   -fixAssignments   Try to fix region assignments.  Replaces the old -fix
   -fixMeta          Try to fix meta problems.  This assumes HDFS region info is good.
   -fixHdfsHoles     Try to fix region holes in hdfs.
   -fixHdfsOrphans   Try to fix region dirs with no .regioninfo file in hdfs
   -fixHdfsOverlaps  Try to fix region overlaps in hdfs.
   -fixVersionFile   Try to fix missing hbase.version file in hdfs.
   -maxMerge <n>     When fixing region overlaps, allow at most <n> regions to merge. (n=5 by default)
   -sidelineBigOverlaps  When fixing region overlaps, allow to sideline big overlaps
   -maxOverlapsToSideline <n>  When fixing region overlaps, allow at most <n> regions to sideline per group. (n=2 by default)
   -fixSplitParents  Try to force offline split parents to be online.
   -ignorePreCheckPermission  ignore filesystem permission pre-check

  Datafile Repair options: (expert features, use with caution!)
   -checkCorruptHFiles     Check all Hfiles by opening them to make sure they are valid
   -sidelineCorruptHfiles  Quarantine corrupted HFiles.  implies -checkCorruptHfiles

  Metadata Repair shortcuts
   -repair           Shortcut for -fixAssignments -fixMeta -fixHdfsHoles -fixHdfsOrphans -fixHdfsOverlaps -fixVersionFile -sidelineBigOverlaps
   -repairHoles      Shortcut for -fixAssignments -fixMeta -fixHdfsHoles
Heap
 par new generation   total 176960K, used 28318K [0x0000000412e00000, 0x000000041ee00000, 0x000000041ee00000)
  eden space 157312K,  18% used [0x0000000412e00000, 0x00000004149a7b50, 0x000000041c7a0000)
  from space 19648K,   0% used [0x000000041c7a0000, 0x000000041c7a0000, 0x000000041dad0000)
  to   space 19648K,   0% used [0x000000041dad0000, 0x000000041dad0000, 0x000000041ee00000)
 concurrent mark-sweep generation total 5312K, used 0K [0x000000041ee00000, 0x000000041f330000, 0x00000007fae00000)
 concurrent-mark-sweep perm gen total 21248K, used 10311K [0x00000007fae00000, 0x00000007fc2c0000, 0x0000000800000000)