erigon-pulse/cmd/txpool/readme.md

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# TxPool v2
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Transaction Pool - place where living "not-included-to-block-yet transactions".
Erigon's TxPool can work inside Erigon (default) and as separated process.
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Erigon's pool implementation is not fork of Geths, has Apache license - Design
docs: https://github.com/ledgerwatch/erigon/wiki/Transaction-Pool-Design
95% of pool-related code (from p2p message parsing, to sorting logic) is inside this
folder: https://github.com/ledgerwatch/erigon-lib/tree/main/txpool
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## Internal mode
It's default. No special flags required - just start Erigon.
RPCDaemon - flags `--private.api.addr` and `--txpool.api.addr` must have same value in this case.
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## External mode
```
make txpool
# Add `--txpool.disable` flag to Erigon
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# External TxPool require(!) external Sentry
./build/bin/sentry --sentry.api.addr=localhost:9091 --datadir=<your_datadir>
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# Start TxPool service (it connects to Erigon and Sentry):
# --private.api.addr - connect to Erigon's grpc api
# --sentry.api.addr - connect to Sentry's grpc api
# --txpool.api.addr - other services to connect TxPool's grpc api
# Increase limits flags: --txpool.globalslots, --txpool.globalbasefeeeslots, --txpool.globalqueue
# --txpool.trace.senders - print more logs about Txs with senders in this list
./build/bin/txpool --private.api.addr=localhost:9090 --sentry.api.addr=localhost:9091 --txpool.api.addr=localhost:9094 --datadir=<your_datadir>
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# Add flag `--txpool.api.addr` to RPCDaemon
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```
## ToDo list
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[] Hard-forks support (now TxPool require restart - after hard-fork happens)
[] Add pool to docker-compose
[] Add pool (db table) - where store recently mined txs - for faster unwind/reorg.
[] Save history of local transactions - with 1 day expiration
[] move tx.rlp field to separated map, to make tx immutable