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docs: fix minor mistakes
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@ -6,7 +6,7 @@
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> CIC Chain Events
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Filters live (and past) transactions on Celo and emits relevant transfer events to a NATS JetStream sink for further processing/indexing.
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Filters live (and past) transactions on Celo and emits relevant events to a NATS JetStream sink for further processing/indexing.
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## Prerequisites
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@ -29,7 +29,7 @@ The base config is described in `config.toml`. Values can be overriden with env
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### 3. Start the service
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#### Compiling binary
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**Compiling the binary**
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Run `make build` or download pre-compiled binaries from the [releases](https://github.com/grassrootseconomics/cic-chain-events/releases) page.
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@ -41,7 +41,7 @@ Optional flags:
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- `-debug` - Enable/disable debug level logs
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- `-queries` - `queries.sql` file path
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#### Docker
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**Docker**
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To pull the pre-built docker image:
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14
config.toml
14
config.toml
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[metrics]
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# Exposes Prometheus metrics
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# /metrics endpoint
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go_process = true
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# API server
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@ -13,25 +14,24 @@ graphql_endpoint = "https://rpc.celo.grassecon.net/graphql"
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ws_endpoint = "wss://socket.celo.grassecon.net"
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[syncer]
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# Number of goroutines assigned to the worker pool
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# Number of goroutines assigned to the janitor worker pool
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janitor_concurrency = 5
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# Max idle time after which goroutine is returned back to the pool
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idle_worker_timeout = 1
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# Syncer start block
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initial_lower_bound = 17269000
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# Max blocks in worker queue awaiting processing
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janitor_queue_size = 500
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# Janitor sweep interval, should take into account concurrency and queue_size
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# Janitor sweep interval
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janitor_sweep_interval = 5
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[postgres]
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# Default is the Docker container DSN
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dsn = "postgres://postgres:postgres@localhost:5432/cic_chain_events"
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# https://docs.nats.io/
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[jetstream]
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endpoint = "nats://localhost:4222"
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stream_name = "CHAIN"
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# Duration JetStream should keep the message before GC
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# Duration JetStream should keep the message before remocing it from the persistent store
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persist_duration_hours = 48
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# Duration to ignore duplicate transactions (e.g. due to restart)
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dedup_duration_hours = 6
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@ -41,7 +41,3 @@ stream_subjects = [
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"CHAIN.transferFrom",
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"CHAIN.mintTo"
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]
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# 77G - snapshot
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# 111G - decompressed
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# 112G - latest
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@ -10,15 +10,15 @@ The existing implementation demo's tracking Celo stables transfer events and giv
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### Head syncer
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The head syncer processes newely produced blocks independently by connection to the geth websocket endpoint.
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The head syncer processes newely produced blocks independently by connecting to the geth websocket endpoint.
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### Janitor
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The janitor syncer checks for missing (blocks) gaps in the commited block sequence and queues them for processing. It can also function as a historical syncer too process older blocks.
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The janitor syncer checks for missing (blocks) gaps in the commited block sequence and queues them for processing. It can also function as a historical syncer to process older blocks.
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With the default `config.toml`, The janitor can process around 950-1000 blocks/min.
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_Ordering_
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**Ordering**
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Missed/historical blocks are not guaranteed to be processed in order, however a low concurrency setting would somewhat give an "in-order" behaviour (not to be relied upon in any case).
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@ -28,7 +28,7 @@ The default GraphQL block fetcher is the recommended fetcher. An experimental RP
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## Pipeline
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The pipeline fetches a whole block with its full transaction and receipt objects, executes all loaded filters serially and finally commits the block value to the db. Blocks are processed atomically by the pipeline; a failure in one of the filters will trigger the janitor to re-queue the block and process the block again.
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The pipeline fetches a whole block with its full transaction and receipt objects, executes all loaded filters serially and finally commits the block number to the db. Blocks are processed atomically by the pipeline; a failure in one of the filters will trigger the janitor to re-queue the block and process the block again.
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## Store
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