iip 6: exclude delegate nodes with lower than expected version #10
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raullenchai
reviewed
Nov 1, 2019
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| IIP: 6 | |||
| Title: Exclude delegate nodes with lower-than-expected chain version | |||
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How about "Exclude Nodes With Unexpected Binary Version from Consensus Delegates "
| The problem can be concurred by enforcing all delegate nodes to be up-to-date, however, the communication cost could be very high for a decentralized system like us. To prevent similar problems, we are proposing a new delegate election strategy to exclude delegate nodes who fail to adopt a mandatory upgrade. With this new strategy, these delegate nodes will be replaced by qualified backup delegate nodes until they adopt all mandatory upgrades. | ||
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| ## Specification | ||
| A system level contract will be deployed onto IoTeX blockchain to register the chain versions of all delegate nodes. When starting a blockchain node, a version checking will be performed to update the version registered in the contract if necessary. In poll protocol, a delegate node will be filtered if its chain version registered in the contract is lower than expected, which means it has not adopted the latest version of mandatory upgrade. |
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who sets the expected version in this contract?
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