Validator - support partitioning of the slot id space (#890)
* Adds validatorPartitionSize and validatorPartitionIndex config options * adds partitioning options to the validation type * adds partitioning logic to the validator * ignores partitionIndex when partitionSize is either 0 or 1 * clips the partition index to <<partitionIndex mod partitionSize>> * handles negative values for the validation partition index * updates long description of the new validator cli options * makes default partitionSize to be 0 for better backward compatibility * Improving formatting on validator CLI * reactors validation params into a separate type and simplifies validation of validation params * removes suspected duplication * fixes typo in validator CLI help * updates README * Applies review comments - using optionals and range types to handle validation params * Adds initializer to the configFactory for validatorMaxSlots * [Review] update validator CLI description and README * [Review]: renaming validationParams to validationConfig (config) * [Review]: move validationconfig.nim to a higher level (next to validation.nim) * changes backing type of MaxSlots to be int and makes sure slots are validated without limit when maxSlots is set to 0 * adds more end-to-end test for the validator and the groups * fixes typo in README and conf.nim * makes `maxSlotsConstraintRespected` and `shouldValidateSlot` private + updates the tests * fixes public address of the signer account in the marketplace tutorial * applies review comments - removes two tests
This commit is contained in:
Marcin Czenko
GitHub
parent
e1a02c8b76
commit
5ace105a66
73
README.md
73
README.md
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@ -1,6 +1,8 @@
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# Codex Decentralized Durability Engine
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> The Codex project aims to create a decentralized durability engine that allows persisting data in p2p networks. In other words, it allows storing files and data with predictable durability guarantees for later retrieval.
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> The Codex project aims to create a decentralized durability engine that
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> allows persisting data in p2p networks. In other words, it allows storing
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> files and data with predictable durability guarantees for later retrieval.
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> WARNING: This project is under active development and is considered pre-alpha.
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@ -24,7 +26,8 @@ To build the project, clone it and run:
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make update && make
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```
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The executable will be placed under the `build` directory under the project root.
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The executable will be placed under the `build` directory under the project
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root.
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Run the client with:
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@ -38,33 +41,42 @@ It is possible to configure a Codex node in several ways:
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2. Env. variable
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3. Config
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The order of priority is the same as above: Cli arguments > Env variables > Config file values.
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The order of priority is the same as above:
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Cli arguments > Env variables > Config file values.
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### Environment variables
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In order to set a configuration option using environment variables, first find the desired CLI option
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and then transform it in the following way:
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In order to set a configuration option using environment variables,
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first find the desired CLI option and then transform it in the following way:
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1. prepend it with `CODEX_`
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2. make it uppercase
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3. replace `-` with `_`
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For example, to configure `--log-level`, use `CODEX_LOG_LEVEL` as the environment variable name.
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For example, to configure `--log-level`, use `CODEX_LOG_LEVEL` as the
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environment variable name.
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### Configuration file
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A [TOML](https://toml.io/en/) configuration file can also be used to set configuration values. Configuration option names and corresponding values are placed in the file, separated by `=`. Configuration option names can be obtained from the `codex --help` command, and should not include the `--` prefix. For example, a node's log level (`--log-level`) can be configured using TOML as follows:
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A [TOML](https://toml.io/en/) configuration file can also be used to set
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configuration values. Configuration option names and corresponding values are
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placed in the file, separated by `=`. Configuration option names can be
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obtained from the `codex --help` command, and should not include
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the `--` prefix. For example, a node's log level (`--log-level`) can be
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configured using TOML as follows:
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```toml
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log-level = "trace"
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```
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The Codex node can then read the configuration from this file using the `--config-file` CLI parameter, like `codex --config-file=/path/to/your/config.toml`.
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The Codex node can then read the configuration from this file using
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the `--config-file` CLI parameter, like
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`codex --config-file=/path/to/your/config.toml`.
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### CLI Options
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```
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build/codex --help
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$ build/codex --help
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Usage:
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codex [OPTIONS]... command
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@ -87,8 +99,11 @@ The following options are available:
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--agent-string Node agent string which is used as identifier in network [=Codex].
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--api-bindaddr The REST API bind address [=127.0.0.1].
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-p, --api-port The REST Api port [=8080].
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--repo-kind Backend for main repo store (fs, sqlite) [=fs].
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-q, --storage-quota The size of the total storage quota dedicated to the node [=8589934592].
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--api-cors-origin The REST Api CORS allowed origin for downloading data. '*' will allow all
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origins, '' will allow none. [=Disallow all cross origin requests to download
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data].
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--repo-kind Backend for main repo store (fs, sqlite, leveldb) [=fs].
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-q, --storage-quota The size of the total storage quota dedicated to the node [=$DefaultQuotaBytes].
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-t, --block-ttl Default block timeout in seconds - 0 disables the ttl [=$DefaultBlockTtl].
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--block-mi Time interval in seconds - determines frequency of block maintenance cycle: how
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often blocks are checked for expiration and cleanup
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@ -109,6 +124,18 @@ The following options are available:
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--marketplace-address Address of deployed Marketplace contract.
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--validator Enables validator, requires an Ethereum node [=false].
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--validator-max-slots Maximum number of slots that the validator monitors [=1000].
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If set to 0, the validator will not limit the maximum number of slots it
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monitors.
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--validator-groups Slot validation groups [=ValidationGroups.none].
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A number indicating total number of groups into which the whole slot id space
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will be divided. The value must be in the range [2, 65535]. If not provided, the
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validator will observe the whole slot id space and the value of the
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--validator-group-index parameter will be ignored. Powers of twos are advised
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for even distribution.
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--validator-group-index Slot validation group index [=0].
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The value provided must be in the range [0, validatorGroups). Ignored when
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--validator-groups is not provided. Only slot ids satisfying condition [(slotId
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mod validationGroups) == groupIndex] will be observed by the validator.
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Available sub-commands:
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@ -129,19 +156,27 @@ The following options are available:
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#### Logging
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Codex uses [Chronicles](https://github.com/status-im/nim-chronicles) logging library, which allows great flexibility in working with logs.
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Chronicles has the concept of topics, which categorize log entries into semantic groups.
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Codex uses [Chronicles](https://github.com/status-im/nim-chronicles) logging
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library, which allows great flexibility in working with logs.
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Chronicles has the concept of topics, which categorize log entries into
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semantic groups.
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Using the `log-level` parameter, you can set the top-level log level like `--log-level="trace"`, but more importantly,
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you can set log levels for specific topics like `--log-level="info; trace: marketplace,node; error: blockexchange"`,
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which sets the top-level log level to `info` and then for topics `marketplace` and `node` sets the level to `trace` and so on.
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Using the `log-level` parameter, you can set the top-level log level like
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`--log-level="trace"`, but more importantly, you can set log levels for
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specific topics like `--log-level="info; trace: marketplace,node; error: blockexchange"`,
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which sets the top-level log level to `info` and then for topics
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`marketplace` and `node` sets the level to `trace` and so on.
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### Guides
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To get acquainted with Codex, consider:
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* running the simple [Codex Two-Client Test](docs/TwoClientTest.md) for a start, and;
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* if you are feeling more adventurous, try [Running a Local Codex Network with Marketplace Support](docs/Marketplace.md) using a local blockchain as well.
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* running the simple [Codex Two-Client Test](docs/TwoClientTest.md) for
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a start, and;
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* if you are feeling more adventurous, try
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[Running a Local Codex Network with Marketplace Support](docs/Marketplace.md)
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using a local blockchain as well.
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## API
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The client exposes a REST API that can be used to interact with the clients. Overview of the API can be found on [api.codex.storage](https://api.codex.storage).
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The client exposes a REST API that can be used to interact with the clients.
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Overview of the API can be found on [api.codex.storage](https://api.codex.storage).
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@ -122,7 +122,6 @@ proc bootstrapInteractions(
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else:
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s.codexNode.clock = SystemClock()
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if config.persistence:
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# This is used for simulation purposes. Normal nodes won't be compiled with this flag
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# and hence the proof failure will always be 0.
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when codex_enable_proof_failures:
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@ -140,7 +139,13 @@ proc bootstrapInteractions(
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host = some HostInteractions.new(clock, sales)
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if config.validator:
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let validation = Validation.new(clock, market, config.validatorMaxSlots)
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without validationConfig =? ValidationConfig.init(
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config.validatorMaxSlots,
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config.validatorGroups,
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config.validatorGroupIndex), err:
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error "Invalid validation parameters", err = err.msg
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quit QuitFailure
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let validation = Validation.new(clock, market, validationConfig)
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validator = some ValidatorInteractions.new(clock, validation)
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s.codexNode.contracts = (client, host, validator)
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@ -37,8 +37,10 @@ import ./logutils
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import ./stores
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import ./units
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import ./utils
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from ./validationconfig import MaxSlots, ValidationGroups
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export units, net, codextypes, logutils
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export ValidationGroups, MaxSlots
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export
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DefaultQuotaBytes,
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@ -99,7 +101,8 @@ type
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logFormat* {.
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hidden
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desc: "Specifies what kind of logs should be written to stdout (auto, colors, nocolors, json)"
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desc: "Specifies what kind of logs should be written to stdout (auto, " &
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"colors, nocolors, json)"
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defaultValueDesc: "auto"
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defaultValue: LogKind.Auto
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name: "log-format" }: LogKind
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@ -164,7 +167,8 @@ type
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name: "net-privkey" }: string
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bootstrapNodes* {.
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desc: "Specifies one or more bootstrap nodes to use when connecting to the network"
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desc: "Specifies one or more bootstrap nodes to use when " &
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"connecting to the network"
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abbr: "b"
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name: "bootstrap-node" }: seq[SignedPeerRecord]
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@ -192,7 +196,8 @@ type
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abbr: "p" }: Port
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apiCorsAllowedOrigin* {.
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desc: "The REST Api CORS allowed origin for downloading data. '*' will allow all origins, '' will allow none.",
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desc: "The REST Api CORS allowed origin for downloading data. " &
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"'*' will allow all origins, '' will allow none.",
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defaultValue: string.none
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defaultValueDesc: "Disallow all cross origin requests to download data"
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name: "api-cors-origin" }: Option[string]
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@ -218,7 +223,9 @@ type
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abbr: "t" }: Duration
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blockMaintenanceInterval* {.
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desc: "Time interval in seconds - determines frequency of block maintenance cycle: how often blocks are checked for expiration and cleanup"
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desc: "Time interval in seconds - determines frequency of block " &
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"maintenance cycle: how often blocks are checked " &
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"for expiration and cleanup"
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defaultValue: DefaultBlockMaintenanceInterval
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defaultValueDesc: $DefaultBlockMaintenanceInterval
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name: "block-mi" }: Duration
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@ -230,7 +237,8 @@ type
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name: "block-mn" }: int
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cacheSize* {.
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desc: "The size of the block cache, 0 disables the cache - might help on slow hardrives"
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desc: "The size of the block cache, 0 disables the cache - " &
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"might help on slow hardrives"
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defaultValue: 0
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defaultValueDesc: "0"
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name: "cache-size"
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@ -290,9 +298,35 @@ type
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validatorMaxSlots* {.
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desc: "Maximum number of slots that the validator monitors"
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longDesc: "If set to 0, the validator will not limit " &
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"the maximum number of slots it monitors"
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defaultValue: 1000
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name: "validator-max-slots"
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.}: int
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.}: MaxSlots
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validatorGroups* {.
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desc: "Slot validation groups"
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longDesc: "A number indicating total number of groups into " &
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"which the whole slot id space will be divided. " &
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"The value must be in the range [2, 65535]. " &
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"If not provided, the validator will observe " &
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"the whole slot id space and the value of " &
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"the --validator-group-index parameter will be ignored. " &
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"Powers of twos are advised for even distribution"
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defaultValue: ValidationGroups.none
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name: "validator-groups"
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.}: Option[ValidationGroups]
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validatorGroupIndex* {.
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desc: "Slot validation group index"
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longDesc: "The value provided must be in the range " &
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"[0, validatorGroups). Ignored when --validator-groups " &
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"is not provided. Only slot ids satisfying condition " &
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"[(slotId mod validationGroups) == groupIndex] will be " &
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"observed by the validator"
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defaultValue: 0
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name: "validator-group-index"
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.}: uint16
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|
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rewardRecipient* {.
|
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desc: "Address to send payouts to (eg rewards and refunds)"
|
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|
|
@ -546,7 +580,10 @@ proc updateLogLevel*(logLevel: string) {.upraises: [ValueError].} =
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try:
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setLogLevel(parseEnum[LogLevel](directives[0].toUpperAscii))
|
||||
except ValueError:
|
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raise (ref ValueError)(msg: "Please specify one of: trace, debug, info, notice, warn, error or fatal")
|
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raise (ref ValueError)(
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msg: "Please specify one of: trace, debug, " &
|
||||
"info, notice, warn, error or fatal"
|
||||
)
|
||||
|
||||
if directives.len > 1:
|
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for topicName, settings in parseTopicDirectives(directives[1..^1]):
|
||||
|
|
|
|||
|
|
@ -1,23 +1,27 @@
|
|||
import std/sets
|
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import std/sequtils
|
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import pkg/chronos
|
||||
import pkg/questionable/results
|
||||
|
||||
import ./validationconfig
|
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import ./market
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import ./clock
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import ./logutils
|
||||
|
||||
export market
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export sets
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export validationconfig
|
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|
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type
|
||||
Validation* = ref object
|
||||
slots: HashSet[SlotId]
|
||||
maxSlots: int
|
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clock: Clock
|
||||
market: Market
|
||||
subscriptions: seq[Subscription]
|
||||
running: Future[void]
|
||||
periodicity: Periodicity
|
||||
proofTimeout: UInt256
|
||||
config: ValidationConfig
|
||||
|
||||
logScope:
|
||||
topics = "codex validator"
|
||||
|
|
@ -26,10 +30,9 @@ proc new*(
|
|||
_: type Validation,
|
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clock: Clock,
|
||||
market: Market,
|
||||
maxSlots: int
|
||||
config: ValidationConfig
|
||||
): Validation =
|
||||
## Create a new Validation instance
|
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Validation(clock: clock, market: market, maxSlots: maxSlots)
|
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Validation(clock: clock, market: market, config: config)
|
||||
|
||||
proc slots*(validation: Validation): seq[SlotId] =
|
||||
validation.slots.toSeq
|
||||
|
|
@ -43,11 +46,27 @@ proc waitUntilNextPeriod(validation: Validation) {.async.} =
|
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trace "Waiting until next period", currentPeriod = period
|
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await validation.clock.waitUntil(periodEnd.truncate(int64) + 1)
|
||||
|
||||
func groupIndexForSlotId*(slotId: SlotId,
|
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validationGroups: ValidationGroups): uint16 =
|
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let slotIdUInt256 = UInt256.fromBytesBE(slotId.toArray)
|
||||
(slotIdUInt256 mod validationGroups.u256).truncate(uint16)
|
||||
|
||||
func maxSlotsConstraintRespected(validation: Validation): bool =
|
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validation.config.maxSlots == 0 or
|
||||
validation.slots.len < validation.config.maxSlots
|
||||
|
||||
func shouldValidateSlot(validation: Validation, slotId: SlotId): bool =
|
||||
if (validationGroups =? validation.config.groups):
|
||||
(groupIndexForSlotId(slotId, validationGroups) ==
|
||||
validation.config.groupIndex) and
|
||||
validation.maxSlotsConstraintRespected
|
||||
else:
|
||||
validation.maxSlotsConstraintRespected
|
||||
|
||||
proc subscribeSlotFilled(validation: Validation) {.async.} =
|
||||
proc onSlotFilled(requestId: RequestId, slotIndex: UInt256) =
|
||||
let slotId = slotId(requestId, slotIndex)
|
||||
if slotId notin validation.slots:
|
||||
if validation.slots.len < validation.maxSlots:
|
||||
if validation.shouldValidateSlot(slotId):
|
||||
trace "Adding slot", slotId
|
||||
validation.slots.incl(slotId)
|
||||
let subscription = await validation.market.subscribeSlotFilled(onSlotFilled)
|
||||
|
|
|
|||
|
|
@ -0,0 +1,36 @@
|
|||
import std/strformat
|
||||
import pkg/questionable
|
||||
import pkg/questionable/results
|
||||
|
||||
type
|
||||
ValidationGroups* = range[2..65535]
|
||||
MaxSlots* = int
|
||||
ValidationConfig* = object
|
||||
maxSlots: MaxSlots
|
||||
groups: ?ValidationGroups
|
||||
groupIndex: uint16
|
||||
|
||||
func init*(
|
||||
_: type ValidationConfig,
|
||||
maxSlots: MaxSlots,
|
||||
groups: ?ValidationGroups,
|
||||
groupIndex: uint16 = 0): ?!ValidationConfig =
|
||||
if maxSlots < 0:
|
||||
return failure "The value of maxSlots must be greater than " &
|
||||
fmt"or equal to 0! (got: {maxSlots})"
|
||||
if validationGroups =? groups and groupIndex >= uint16(validationGroups):
|
||||
return failure "The value of the group index must be less than " &
|
||||
fmt"validation groups! (got: {groupIndex = }, " &
|
||||
fmt"groups = {validationGroups})"
|
||||
|
||||
success ValidationConfig(
|
||||
maxSlots: maxSlots, groups: groups, groupIndex: groupIndex)
|
||||
|
||||
func maxSlots*(config: ValidationConfig): MaxSlots =
|
||||
config.maxSlots
|
||||
|
||||
func groups*(config: ValidationConfig): ?ValidationGroups =
|
||||
config.groups
|
||||
|
||||
func groupIndex*(config: ValidationConfig): uint16 =
|
||||
config.groupIndex
|
||||
|
|
@ -79,7 +79,7 @@ echo ${GETH_SIGNER_ADDR} > geth_signer_address.txt
|
|||
|
||||
> Here make sure you replace `0x0000000000000000000000000000000000000000`
|
||||
> with your public address of the signer account
|
||||
> (`0x93976895c4939d99837C8e0E1779787718EF8368` in our example).
|
||||
> (`0x33A904Ad57D0E2CB8ffe347D3C0E83C2e875E7dB` in our example).
|
||||
|
||||
### 1.2. Configure The Network and Create the Genesis Block
|
||||
|
||||
|
|
|
|||
|
|
@ -1,4 +1,6 @@
|
|||
import pkg/chronos
|
||||
import std/strformat
|
||||
import std/random
|
||||
|
||||
import codex/validation
|
||||
import codex/periods
|
||||
|
|
@ -12,7 +14,8 @@ import ./helpers
|
|||
asyncchecksuite "validation":
|
||||
let period = 10
|
||||
let timeout = 5
|
||||
let maxSlots = 100
|
||||
let maxSlots = MaxSlots(100)
|
||||
let validationGroups = ValidationGroups(8).some
|
||||
let slot = Slot.example
|
||||
let proof = Groth16Proof.example
|
||||
let collateral = slot.request.ask.collateral
|
||||
|
|
@ -20,11 +23,23 @@ asyncchecksuite "validation":
|
|||
var validation: Validation
|
||||
var market: MockMarket
|
||||
var clock: MockClock
|
||||
var groupIndex: uint16
|
||||
|
||||
proc initValidationConfig(maxSlots: MaxSlots,
|
||||
validationGroups: ?ValidationGroups,
|
||||
groupIndex: uint16 = 0): ValidationConfig =
|
||||
without validationConfig =? ValidationConfig.init(
|
||||
maxSlots, groups=validationGroups, groupIndex), error:
|
||||
raiseAssert fmt"Creating ValidationConfig failed! Error msg: {error.msg}"
|
||||
validationConfig
|
||||
|
||||
setup:
|
||||
groupIndex = groupIndexForSlotId(slot.id, !validationGroups)
|
||||
market = MockMarket.new()
|
||||
clock = MockClock.new()
|
||||
validation = Validation.new(clock, market, maxSlots)
|
||||
let validationConfig = initValidationConfig(
|
||||
maxSlots, validationGroups, groupIndex)
|
||||
validation = Validation.new(clock, market, validationConfig)
|
||||
market.config.proofs.period = period.u256
|
||||
market.config.proofs.timeout = timeout.u256
|
||||
await validation.start()
|
||||
|
|
@ -41,12 +56,69 @@ asyncchecksuite "validation":
|
|||
test "the list of slots that it's monitoring is empty initially":
|
||||
check validation.slots.len == 0
|
||||
|
||||
for (validationGroups, groupIndex) in [(100, 100'u16), (100, 101'u16)]:
|
||||
test "initializing ValidationConfig fails when groupIndex is " &
|
||||
"greater than or equal to validationGroups " &
|
||||
fmt"(testing for {groupIndex = }, {validationGroups = })":
|
||||
let groups = ValidationGroups(validationGroups).some
|
||||
let validationConfig = ValidationConfig.init(
|
||||
maxSlots, groups = groups, groupIndex = groupIndex)
|
||||
check validationConfig.isFailure == true
|
||||
check validationConfig.error.msg == "The value of the group index " &
|
||||
"must be less than validation groups! " &
|
||||
fmt"(got: {groupIndex = }, groups = {!groups})"
|
||||
|
||||
test "initializing ValidationConfig fails when maxSlots is negative":
|
||||
let maxSlots = -1
|
||||
let validationConfig = ValidationConfig.init(
|
||||
maxSlots = maxSlots, groups = ValidationGroups.none)
|
||||
check validationConfig.isFailure == true
|
||||
check validationConfig.error.msg == "The value of maxSlots must " &
|
||||
fmt"be greater than or equal to 0! (got: {maxSlots})"
|
||||
|
||||
test "initializing ValidationConfig fails when maxSlots is negative " &
|
||||
"(validationGroups set)":
|
||||
let maxSlots = -1
|
||||
let validationConfig = ValidationConfig.init(
|
||||
maxSlots = maxSlots, groups = validationGroups, groupIndex)
|
||||
check validationConfig.isFailure == true
|
||||
check validationConfig.error.msg == "The value of maxSlots must " &
|
||||
fmt"be greater than or equal to 0! (got: {maxSlots})"
|
||||
|
||||
test "slot is not observed if it is not in the validation group":
|
||||
let validationConfig = initValidationConfig(maxSlots, validationGroups,
|
||||
(groupIndex + 1) mod uint16(!validationGroups))
|
||||
let validation = Validation.new(clock, market, validationConfig)
|
||||
await validation.start()
|
||||
await market.fillSlot(slot.request.id, slot.slotIndex, proof, collateral)
|
||||
await validation.stop()
|
||||
check validation.slots.len == 0
|
||||
|
||||
test "when a slot is filled on chain, it is added to the list":
|
||||
await market.fillSlot(slot.request.id, slot.slotIndex, proof, collateral)
|
||||
check validation.slots == @[slot.id]
|
||||
|
||||
test "slot should be observed if maxSlots is set to 0":
|
||||
let validationConfig = initValidationConfig(
|
||||
maxSlots = 0, ValidationGroups.none)
|
||||
let validation = Validation.new(clock, market, validationConfig)
|
||||
await validation.start()
|
||||
await market.fillSlot(slot.request.id, slot.slotIndex, proof, collateral)
|
||||
await validation.stop()
|
||||
check validation.slots == @[slot.id]
|
||||
|
||||
test "slot should be observed if validation group is not set (and " &
|
||||
"maxSlots is not 0)":
|
||||
let validationConfig = initValidationConfig(
|
||||
maxSlots, ValidationGroups.none)
|
||||
let validation = Validation.new(clock, market, validationConfig)
|
||||
await validation.start()
|
||||
await market.fillSlot(slot.request.id, slot.slotIndex, proof, collateral)
|
||||
await validation.stop()
|
||||
check validation.slots == @[slot.id]
|
||||
|
||||
for state in [SlotState.Finished, SlotState.Failed]:
|
||||
test "when slot state changes, it is removed from the list":
|
||||
test fmt"when slot state changes to {state}, it is removed from the list":
|
||||
await market.fillSlot(slot.request.id, slot.slotIndex, proof, collateral)
|
||||
market.slotState[slot.id] = state
|
||||
advanceToNextPeriod()
|
||||
|
|
@ -67,7 +139,13 @@ asyncchecksuite "validation":
|
|||
check market.markedAsMissingProofs.len == 0
|
||||
|
||||
test "it does not monitor more than the maximum number of slots":
|
||||
let validationGroups = ValidationGroups.none
|
||||
let validationConfig = initValidationConfig(
|
||||
maxSlots, validationGroups)
|
||||
let validation = Validation.new(clock, market, validationConfig)
|
||||
await validation.start()
|
||||
for _ in 0..<maxSlots + 1:
|
||||
let slot = Slot.example
|
||||
await market.fillSlot(slot.request.id, slot.slotIndex, proof, collateral)
|
||||
await validation.stop()
|
||||
check validation.slots.len == maxSlots
|
||||
|
|
|
|||
Loading…
Reference in New Issue