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Trevor Porter 3f88aa6f6e Observability of validators for relayers (#3057) ... ### Description Goal of this was to have insight into validators of important sets being "up" Introduces a new metric used by relayers: `hyperlane_observed_validator_latest_index`, e.g.: ``` hyperlane_observed_validator_latest_index{agent="relayer",app_context="default_ism",destination="test1",hyperlane_baselib_version="0.1.0",origin="test2",validator="0x9965507d1a55bcc2695c58ba16fb37d819b0a4dc"} 664 hyperlane_observed_validator_latest_index{agent="relayer",app_context="default_ism",destination="test1",hyperlane_baselib_version="0.1.0",origin="test3",validator="0x976ea74026e726554db657fa54763abd0c3a0aa9"} 641 hyperlane_observed_validator_latest_index{agent="relayer",app_context="default_ism",destination="test2",hyperlane_baselib_version="0.1.0",origin="test1",validator="0x15d34aaf54267db7d7c367839aaf71a00a2c6a65"} 670 hyperlane_observed_validator_latest_index{agent="relayer",app_context="default_ism",destination="test2",hyperlane_baselib_version="0.1.0",origin="test3",validator="0x976ea74026e726554db657fa54763abd0c3a0aa9"} 665 hyperlane_observed_validator_latest_index{agent="relayer",app_context="default_ism",destination="test3",hyperlane_baselib_version="0.1.0",origin="test1",validator="0x15d34aaf54267db7d7c367839aaf71a00a2c6a65"} 652 hyperlane_observed_validator_latest_index{agent="relayer",app_context="default_ism",destination="test3",hyperlane_baselib_version="0.1.0",origin="test2",validator="0x9965507d1a55bcc2695c58ba16fb37d819b0a4dc"} 664 hyperlane_observed_validator_latest_index{agent="relayer",app_context="testapp",destination="test1",hyperlane_baselib_version="0.1.0",origin="test2",validator="0x9965507d1a55bcc2695c58ba16fb37d819b0a4dc"} 658 hyperlane_observed_validator_latest_index{agent="relayer",app_context="testapp",destination="test1",hyperlane_baselib_version="0.1.0",origin="test3",validator="0x976ea74026e726554db657fa54763abd0c3a0aa9"} 641 ``` Tapping into metadata building for multisig ISMs, the relayer will update the metric with the latest indices for the validators in a set. In order to prevent the cardinality being ridiculously high, only certain validator sets are tracked. This is done by introducing an `app_context` label (I'm very open to other names here, for some reason whenever idk how to name some kind of identifier I end up calling it a context 😆) The app context can either be: - if a new setting, --metricAppContexts, is specified, a message will be classified based off the first matching list it matches. E.g. `--metricAppContexts '[{"name": "testapp", "matchingList": [{"recipient_address": "0xd84379ceae14aa33c123af12424a37803f885889", "destination_domain": 13371 }] }]'`. This is nice for e.g. warp route deployments, where the ISM is maybe not a default ISM, and can be changed - if a message doesn't get classified this way, it can also be classified with the "default_ism" app context, which is just for any message that happens to use the default ISM as its "root" ISM This way we have insight in to the default ISM and any application-specific ISMs. Some things to note: - it's possible for a message to actually have more than one validator set, e.g. if it's using an aggregation ISM. In this case, we'll have metrics on the union of all validator sets for that app context - Some effort is required to make sure that metrics don't stick around for a validator that has actually been removed from the set. To handle this, we cache the validator set for an app context and clear out the entire set each time we set the metrics ### Drive-by changes - Zod's nonempty function for strings is deprecated, moves to `.min(1)` instead ### Related issues - Fixes https://github.com/hyperlane-xyz/hyperlane-monorepo/issues/1762 ### Backward compatibility yes ### Testing Ran locally - I think i'll probably add something in e2e tests, but opening now		11 months ago
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relayer	Observability of validators for relayers (#3057)	11 months ago
scraper	feat: sealevel merkle indexer + e2e (#3053)	11 months ago
validator	Relayer balance metrics (#2976)	12 months ago