CODEWITHSUNDEEP
hyperledger-fabrichyperledger
song chan back
song chan back

Reputation: 33

When does the Endorsement Policy take place? What are the relevant System Chain Codes?

I referenced the web page : http://hyperledger-fabric.readthedocs.io/en/latest/arch-deep-dive.html

And I want to ask you about this picture and Endorsement Policy. enter image description here

In section 2.3 of the website, the following statement appears. And that is related to ③ of the picture.

"The exact number of “enough” depend on the chaincode endorsement policy"

And in section 2.4 of this web site, the following statement appears for a peer. that is related to ④ of the picture.

It checks that the blob.endorsement is valid according to the policy of the chaincode (blob.tran-proposal.chaincodeID) to which it refers.

Question

  1. What is the difference between an ③ endorsement policy and ④ a policy of the chaincode?
  2. Is ESCC related to ③, and ④ related to VSCC?

Upvotes: 0

Views: 226

Answers (1)

Artem Barger
Artem Barger

Reputation: 41232

Question

  1. What is the difference between an ③ endorsement policy and ④ a policy of the chaincode?

At stage 3, the peer actually proceed with endorsement, meaning literally signing the results of the chaincode invocation. While at 4 this is happens at commit time, where peer ensures whenever endorsement policy satisfied.

NOTE: It's up to the client to collect required number of endorsements.

  1. Is ESCC related to ③, and ④ related to VSCC?

Yes, ESCC or Endorsement System ChainCode is the actually a system chaincode which responsible to "endorse" transaction, where VSCC or Validation System ChainCode is a system chaincode to check whenever endorsement policy satisfied.

Upvotes: 1

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