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bft blockchain consensus consistency cryptocurrency cryptography db distributed-systems go

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mergify[bot] d4f26f7d61 consensus: calculate prevote message delay metric (backport #7551 ) (#7618 ) * consensus: calculate prevote message delay metric (#7551) ## What does this pull request do? This pull requests adds two metrics intended for use in calculating an experimental value for `MessageDelay`. The metrics are as follows: ``` # HELP tendermint_consensus_complete_prevote_message_delay Difference in seconds between the proposal timestamp and the timestamp of the prevote that achieved 100% of the voting power in the prevote step. # TYPE tendermint_consensus_complete_prevote_message_delay gauge tendermint_consensus_complete_prevote_message_delay{chain_id="test-chain-aZbwF1"} 0.013025505 # HELP tendermint_consensus_quorum_prevote_message_delay Difference in seconds between the proposal timestamp and the timestamp of the prevote that achieved a quorum in the prevote step. # TYPE tendermint_consensus_quorum_prevote_message_delay gauge tendermint_consensus_quorum_prevote_message_delay{chain_id="test-chain-aZbwF1"} 0.013025505 ``` ## Why this change? For more information on what these metrics are calculating, see #7202. The aim is to merge to backport these metrics to v0.34 and run nodes on a few popular chains with these metrics to determine the experimental values for `MessageDelay` on these popular chains and use these to select our default `SynchronyParams.MessageDelay` value. ## Why Gauges for the metrics? Gauges allow us to overwrite the metric on each successive observation. We can then capture these metrics over time to track the highest and lowest observed value. (cherry picked from commit `0c82ceaa5f`) # Conflicts: # internal/consensus/state.go * fix merge conflicts Co-authored-by: William Banfield <4561443+williambanfield@users.noreply.github.com> Co-authored-by: William Banfield <wbanfield@gmail.com>		3 years ago
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blocksync	internal/proxy: add initial set of abci metrics backport (#7342)	3 years ago
consensus	consensus: calculate prevote message delay metric (backport #7551) (#7618)	3 years ago
evidence	cmd: add integration test for rollback functionality (backport #7315) (#7369)	3 years ago
inspect	Remove now-unused nolint:lll directives. (backport #7356) (#7358)	3 years ago
libs	internal/libs/protoio: optimize MarshalDelimited by plain byteslice allocations+sync.Pool (#7325) (#7426)	3 years ago
mempool	lint: cleanup branch lint errors (#7238)	3 years ago
p2p	Remove now-unused nolint:lll directives. (backport #7356) (#7358)	3 years ago
proxy	internal/proxy: add initial set of abci metrics backport (#7342)	3 years ago
rpc/core	rpc: implement header and header_by_hash queries (backport #7270) (#7367)	3 years ago
state	cmd: add integration test for rollback functionality (backport #7315) (#7369)	3 years ago
statesync	lint: cleanup branch lint errors (#7238)	3 years ago
store	cmd: add integration test for rollback functionality (backport #7315) (#7369)	3 years ago
test/factory	cleanup: Reduce and normalize import path aliasing. (#6975)	3 years ago