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Published 20 hours ago • verified publisher icon steveloughran

duplicate chapter - hdfs bootstrap

Open camypaj opened this issue 8 years ago • 0 comments

Hi Steve,

thanks for this book, it's just what I needed :) I'm working on a pull request, but this seems more like a "issue", since this block (HDFS Boostrap) seems identical to the one a few paragraphs above:

  1. NN reads in a keytab and initializes itself from there (i.e. no need to kinit; ticket renewal handed by UGI).
  2. Generates a Secret

Delegation tokens in the NN are persisted to the edit log, the operations OP_GET_DELEGATION_TOKEN OP_RENEW_DELEGATION_TOKEN and OP_CANCEL_DELEGATION_TOKEN covering the actions. This ensures that on failover, the tokens are still valid

Also it seems to contain a typo in the title that I've just noticed. "Boostrap" -> "Bootstrap".

Cheers, Camypaj

camypaj avatar Apr 06 '17 17:04 camypaj