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Hashing method for initCrc

Builder

What is the method that splunkd uses to hash the first 256 bytes of a file that is being monitored?

1 Solution

Splunk Employee
Splunk Employee

a bit of magic.
http://en.wikipedia.org/wiki/Computation_of_CRC

Remarks about CRC options.

  • You can add the source to the calculation (crcSalt= with SOURCE in caps in inputs.conf)
  • and since Splunk 5.0 you can setup a longer CRC (initCrcLength in inputs.conf)

View solution in original post

Splunk Employee
Splunk Employee

a bit of magic.
http://en.wikipedia.org/wiki/Computation_of_CRC

Remarks about CRC options.

  • You can add the source to the calculation (crcSalt= with SOURCE in caps in inputs.conf)
  • and since Splunk 5.0 you can setup a longer CRC (initCrcLength in inputs.conf)

View solution in original post

Builder

Really i'm just curious.

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