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License: Apache License 2.0
Kerberos and Hadoop: The Madness beyond the Gate
License: Apache License 2.0
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:
- NN reads in a keytab and initializes itself from there (i.e. no need to
kinit
; ticket
renewal handed byUGI
).- Generates a Secret
Delegation tokens in the NN are persisted to the edit log, the operations
OP_GET_DELEGATION_TOKEN
OP_RENEW_DELEGATION_TOKEN
andOP_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
Hi again Steve,
I find this sentence confusing:
Isolate the Hadoop cluster from the rest of your network infrastructure, apart from some "edge" nodes, so that only processes running in the cluster.
I assume there are some words missing, but that depends on what you wanted to say.
Regards,
Camypaj
Here the variable
userFS
contains a client of the Hadoop Filesystem with the home directory and access rights of theuser
user. If the user identity had come in via an RPC call, they'd
They'd what? That is exactly the use case I am interested in! ๐ Thanks for the book, looks like a great resource.
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