Which RPC calls does firehose replace?

[paymog]

Do you want to request a feature or report a bug?

I have a question

What is the current behavior?

I've launched firehose for my indexers and I'm still seeing many rpc calls being issued by the graph node. I'm specifically interested in learning which RPC calls we should expect to be eliminated once firehose is turned on.

I'm currently running graph node version 0.29.0 and firehose v1.3.3.

I see the following JSON rpc calls continuing to happen even though firehose has been enabled:

I would have intuitively guessed that firehose would replace all calls except eth_call which requires an archive node. However I'm still seeing calls for getting blocks by number, transaction receipts, and get logs.

[matthewdarwin]

From reading the comments here, seems like you need to be on version 0.30? #4059

[paymog]

I'm also seeing this against my polygon firehose which I think (though I might be completely wrong!) isn't affected by #4059

Also, 0.30 hasn't been released based on docker hub: https://hub.docker.com/r/graphprotocol/graph-node/tags?page=1&name=0.30

EDIT: thinking about it more, #4059 might be for all eth-compatible chains and not just eth mainnet?

[maoueh]

thinking about it more, #4059 might be for all eth-compatible chains and not just eth mainnet?

That is correct, it affects all Ethereum like chain. So right now, from the list you presented above, they all look correct, all done by the BlockIngestor which is technically not required anymore.

Have you tried with environment variable IS_FIREHOSE_PREFERRED=true so far?

[paymog]

Ah got it! Hopefully 0.30.0 is released soon!

Yeah, I've tried that in the past and from what I can tell GRAPH_ETHEREUM_IS_FIREHOSE_PREFERRED set to true by default.

[paymog]

Is the expectation that if I deploy a new subgraph which starts indexing at block 0, the only rpc calls made for that subgraph will be eth_call and that all the other indexing needs for the "new" subgraph will be handled by firehose?

[maoueh]

Is the expectation that if I deploy a new subgraph which starts indexing at block 0, the only rpc calls made for that subgraph will be eth_call and that all the other indexing needs for the "new" subgraph will be handled by firehose?

Yes