unable to find prover

[Darclindy]

Describe the bug

When I run a proposer node in my servers, I have configed the prover address and set ENABLE_PROPOSER as true in .env;But when I print log, i found that the proposer always report error like:dial tcp: lookup ethereum-holesky.blockpi.network: i/o timeout;unable to find prover;

so I want to kown when this scene occur, should I change other prover's IP, or this is a normal condition?

there is my logs:

simple-taiko-node-taiko_client_proposer-1 | INFO [05-11|02:20:59.191] Start fetching L2 execution engine's transaction pool content filterPoolContent=false lastProposedAt=2024-05-11T01:58:50+0000 simple-taiko-node-taiko_client_proposer-1 | INFO [05-11|02:20:59.266] Current base fee fee=1e-09 simple-taiko-node-taiko_client_proposer-1 | INFO [05-11|02:21:00.102] Transactions lists count count=1 simple-taiko-node-taiko_client_proposer-1 | INFO [05-11|02:21:00.169] Proposer current pending nonce nonce=1 simple-taiko-node-taiko_client_proposer-1 | INFO [05-11|02:21:00.212] Attempting to assign prover endpoint=http://hekla.stonemac65.xyz:9876 expiry=1,715,395,860 txListHash=01a823..eda0f5 tierFees="[{Tier:100 Fee:+30000000000} {Tier:200 Fee:+30000000000} {Tier:1000 Fee:+0}]" simple-taiko-node-taiko_client_proposer-1 | WARN [05-11|02:21:00.280] Failed to assign prover endpoint=http://hekla.stonemac65.xyz:9876 error="unsuccessful response 422" simple-taiko-node-taiko_client_proposer-1 | INFO [05-11|02:21:00.280] Attempting to assign prover endpoint=http://hekla.stonemac65.xyz:9876 expiry=1,715,395,860 txListHash=01a823..eda0f5 tierFees="[{Tier:100 Fee:+33000000000} {Tier:200 Fee:+33000000000} {Tier:1000 Fee:+0}]" simple-taiko-node-taiko_client_proposer-1 | WARN [05-11|02:21:00.348] Failed to assign prover endpoint=http://hekla.stonemac65.xyz:9876 error="unsuccessful response 422" simple-taiko-node-taiko_client_proposer-1 | INFO [05-11|02:21:00.348] Attempting to assign prover endpoint=http://hekla.stonemac65.xyz:9876 expiry=1,715,395,860 txListHash=01a823..eda0f5 tierFees="[{Tier:100 Fee:+39600000000} {Tier:200 Fee:+39600000000} {Tier:1000 Fee:+0}]" simple-taiko-node-taiko_client_proposer-1 | WARN [05-11|02:21:00.428] Failed to assign prover endpoint=http://hekla.stonemac65.xyz:9876 error="unsuccessful response 422" simple-taiko-node-taiko_client_proposer-1 | WARN [05-11|02:21:00.428] Failed to build TaikoL1.proposeBlock transaction error="unable to find prover" simple-taiko-node-taiko_client_proposer-1 | ERROR[05-11|02:22:00.172] Failed to wait for new pending transaction error="dial tcp: lookup ethereum-holesky.blockpi.network: i/o timeout" simple-taiko-node-taiko_client_proposer-1 | ERROR[05-11|02:22:00.172] Proposing operation error error="unable to find prover"

Steps to reproduce

Steps to reproduce here.

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[n1khil69]

Thats due to prover do not have enough tokens to generate proof

[mratsim]

I see 2 errors in your log:

Failed to assign prover endpoint=http://hekla.stonemac65.xyz:9876/ error="unsuccessful response 422"

and

simple-taiko-node-taiko_client_proposer-1 | ERROR[05-11|02:22:00.172] Failed to wait for new pending transaction error="dial tcp: lookup ethereum-holesky.blockpi.network: i/o timeout"

Since then we've released mainnet, can you comment if things are still wrong and I'll reopen the issue.