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gobitfly/beaconchain-explorer

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Apr 09 12:57

qu0b on master

fix slot viz (#753) Co-authore… (compare)
Apr 09 12:52

qu0b on slotviz

fix slot viz (compare)
Apr 09 12:51

qu0b on slotviz

fix slot viz (compare)
Apr 08 13:16

qu0b on master

fix stats export buttons (#751)… (compare)
Apr 08 12:57

qu0b on stats

fix stats export buttons (compare)
Apr 08 11:27

guybrush on master

Widget (#750) * added widget s… (compare)
Apr 08 09:37

guybrush on master

api: encode nil values as null … (compare)
Apr 07 13:54

qu0b on master

Update layout.html (#748) (compare)
Apr 07 13:45

qu0b on master

Update layout.html (#747) Co-a… (compare)
Apr 07 13:35

qu0b on master

fix mobile banner (#745) Co-au… (compare)
Apr 07 09:38

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gitignore: only css and js not … (compare)
Apr 07 09:36

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Merge branch 'master' into fix/… readd webfonts Merge branch 'fix/bundle' of gi… (compare)
Apr 07 09:35

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fix/banners (#743) * add new a… Merge branch 'master' into fix/… (compare)
Apr 07 09:34

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gitignore: only css and js not … (compare)
Apr 06 15:29

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fix/banners (#743) * add new a… (compare)
Apr 06 15:12

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add new ad-zone, fix stakingSer… merge master (compare)
Apr 06 15:11

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add new ad-zone, fix stakingSer… Update stakingServices.html Merge branch 'newbanners' of ht… and 2 more (compare)
Apr 06 15:05

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Apr 06 15:05

qu0b on master

add new ad-zone, fix stakingSer… (compare)
Apr 06 11:43

qu0b on master

add berlin HF banner (#722) * … (compare)

mkinney

@mkinney

gobitfly/eth2-beaconchain-explorer#23

Used docker-compose to spin up a postgres container (not persisting data), a prysm container (persisting data), and an eth2 beacon chain explorer instance... all so you can run docker-compose up and hit http://localhost:3333

mkinney

@mkinney

If I could figure out how to start either chain, I could start to do some integration-y tests.

(start either chain locally without using the testnets)

I want to do that so it would start quickly (no large wait for syncs) and it should be somewhat consistent with data.

mkinney

@mkinney

Lighthouse said to run: date +%s then lighthouse bn --http testnet -r quick 8 1576813592 (where 1576813592 was the output for the date command)

Seems to work...

Peter (bitfly)

@peterbitfly

Thanks for your efforts, for integration testing it would be good to have a somewhat predictable node state

mkinney

@mkinney

:-)

Peter (bitfly)

@peterbitfly

It could make sense to just use a pre filled node data directory as basis

mkinney

@mkinney

possible... but... kinda yucky too...

Peter (bitfly)

@peterbitfly

Like start a local testnet and generate 2-3 epochs

Then use that data directory

mkinney

@mkinney

Paul on lighthouse discord just shared this...

we have a simulator that you can spin up with a single command that has 4x nodes, 4x validator clients and eth1 chain
it lives in here:

https://github.com/sigp/lighthouse/tree/master/tests/beacon_chain_sim
GitHub
sigp/lighthouse
Rust Ethereum 2.0 Client. Contribute to sigp/lighthouse development by creating an account on GitHub.

its setup to end after it finishes running checks, but if you flip this bool it'll stay up:

https://github.com/sigp/lighthouse/blob/74b327b50d1b67782ae4b030297e0f6ea4b19d88/tests/beacon_chain_sim/src/main.rs#L45

so... we may just use that... heh he heh

Peter (bitfly)

@peterbitfly

That looks promising

mkinney

@mkinney

What indexer config values do you use for lighthouse? port "5052"? host "http://somehost"?

and to start the lighthouse beacon node, I'm using lighthouse bn --http-address 0.0.0.0 --ws-address 0.0.0.0 --http testnet -r quick 8 $(date +%s)

mkinney

@mkinney

I think I'm getting closer... but I'm getting this error,

explorerlighthouse_1    | time="2019-12-20T20:10:01Z" level=fatal msg="error retrieving last blocks from DB: sql: converting argument $1 type: uint64 values with high bit set are not supported" module=exporter

mkinney

@mkinney

Is there a reason why these are unsigned ints?

func GetLastPendingAndProposedBlocks(startEpoch, endEpoch uint64) ([]*types.MinimalBlock, error) {

mkinney

@mkinney

I think the problem is that the code does not expect zeros for the start epoch and will -1, which would cause the overflow. I mucked around with it for a bit, but I think it would be better after they re-start their testnet. (lighthouse)

Peter (bitfly)

@peterbitfly

AFAIK those are all unsigned ints as the Prysm data types were only using them and we started from them

mkinney

@mkinney

Those are fine... it is the sql interface only allows for signed ints, so when you have something like foo := uint64(0) - 1 and use foo as an arg to a sql statement, then you run into that error with hight bit set above.

Peter (bitfly)

@peterbitfly

hm it looks like somehow the start epoch parameter underflows for some reason

this might happen if head.FinalizedEpoch is 0

will add a fix for that cases

mkinney

@mkinney

Thanks. That'd be great. If you take a look at mkinney/eth2-beaconchain-explorer@79e04d3 you'll be able to see that db error. I am going to wait until Lighthouse re-launches their testnet before doing much more.

Peter (bitfly)

@peterbitfly

you can try their testnet3 branch

the explorer should be compatible with that one

mkinney

@mkinney

not sure how to use their testnet3 from docker image

lighthouse bn --http-address 0.0.0.0 --ws-address 0.0.0.0 --http testnet -r -t 1000 recent 16

change testnet to testnet3 ?

Peter (bitfly)

@peterbitfly

no, check out the testnet3 branch, build the docker image and run it normally

mkinney

@mkinney

ok, will do. thx

Peter (bitfly)

@peterbitfly

imo the lighthouse testnet is currently a bit more interresting as it runs under mainnet condition with 16k validators

mkinney

@mkinney

I agree that is more interesting, but I'm trying to put together some integration-like testing... kinda hard when things are not "ready"... but I think your idea to build off their testnet3 branch locally might work... will see in 15 minutes or so...

Peter (bitfly)

@peterbitfly

sounds good

mkinney

@mkinney

the finalized epoch is still 0 so I'm still hitting that db error

I guess I'll wait until you can add a fix for that case

I see there is no description for https://hub.docker.com/repository/docker/gobitfly/eth2-beaconchain-explorer/general . I just recently figured out how to update that info. Want me to do a PR against it?

you have to fork off of https://github.com/docker-library/docs

mkinney

@mkinney

hmm.. that's for official docker images...

Peter (bitfly)

@peterbitfly

Hm let me take a look at that and get back to you tomorrow re the docket docs

mkinney

@mkinney

ok. no worries. no rush...

Peter (bitfly)

@peterbitfly

Finalized epoch should not be 0 in the testnet

mkinney

@mkinney

oh, then it could be something stupid I'm doing then...

beaconnode_lighthouse_1  | Dec 27 20:14:24.852 INFO Synced to current epoch                 current_slot: 18, head_slot: 0, finalized_epoch: 0, finalized_root: 0x0000…0000, peers: 0, service: slot_notifier
beaconnode_lighthouse_1  | Dec 27 20:14:36.830 WARN Low peer count

Peter (bitfly)

@peterbitfly

If you start a local testnet you will likely also need validators that Attest on blocks

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