Large genesis makes node crash

[RiccardoM]

Tendermint version (use tendermint version or git rev-parse --verify HEAD if installed from source):
v0.34.11

ABCI app (name for built-in, URL for self-written if it's publicly available):
Cosmos SDK v0.42.7

What happened:
Querying a large genesis file (~ 60 MB) makes the node crash with the following error:

failed to read response body: http: unexpected EOF reading trailer

What you expected to happen:
The genesis is returned properly.

Anything else we need to know:
The node outputs

ERR failed to write responses err="write tcp 65.21.152.138:26657->185.23.87.234:42626: i/o timeout" module=rpc-server res=[

Then it prints the whole genesis file and halts.

[cmwaters]

Thanks for writing up the issue. @marbar3778 also reported a similar issue (#6354) when trying to query a large genesis. We decided to resolve the issue of the timeouts by introducing a new rpc endpoint which chunks the genesis (#6445). This will be introduced in v0.35.

[RiccardoM]

@cmwaters Thanks. Is it possible to backport this to the v0.34.x series?

[cmwaters]

Yup we can try look into doing that