[Samba] AD Joining Failed in middle

[Biswajit Banerjee]

Hi Experts ,

Wanted to Join Samba 4.13 to Win2K as ADC on Samba box of 4vcpu/16 GB 
RAm . It failed while "committing SAM database" , which took few hours .

Need Advice for

  * How can we rejoin , what are steps needs to perform at Win2K side
    for cleanup ?
  * Why "Committing SAM Database " taking so much of time for 2K Users
    and 3K Computers ? How can we Reduce the time taken ?

TIA

Biswajit