monero-wallet-rpc freezes during getting height and synchronization

[gst2233]

Hello, I'm trying to use monero-wallet-rpc for automation of creation and sync monero wallets and something went wrong:

1. I'm starting rpc server

$ monero-wallet-rpc --proxy 127.0.0.1:9050 --daemon-address http://6dsdenp6vjkvqzy4wzsnzn6wixkdzihx3khiumyzieauxuxslmcaeiad.onion:18081 --rpc-bind-port 9999 --disable-rpc-login

2. generating a new wallet, it works and opens wallet automatically.

$ curl -X POST http://127.0.0.1:9999/json_rpc -d '{"jsonrpc":"2.0","id":"0","method":"generate_from_keys", "params"={"restore_height":0,"filename":"wallet_name","address":"42gt8cXJSHAL4up8XoZh7fikVuswDU7itAoaCjSQyo6fFoeTQpAcAwrQ1cs8KvFynLFSBdabhmk7HEe3HS7UsAz4LYnVPYM","spendkey":"11d3fd247672c4cb29b6e38791dcf07629cd2d68d868f0b78811ce584a6b0d01","viewkey":"97cf64f2cd6c930242e9bed5f14f8f16a33047229aca3eababf4af7e8d113209","password":"pass","autosave_current":true}},' -H 'Content-Type: application/json'

3. trying to get height

$ curl http://127.0.0.1:9999/json_rpc -d '{"jsonrpc":"2.0","id":"0","method":"get_height"}' -H 'Content-Type: application/json'

and sometimes it responds "1", sometimes rpc server is freezing.
Finally, single way to kill rcp server and starting all from scratch.

Please help to resolve the issue.
I tested it on 2 devices (debian 11 in virtualbox and debian 10 on the remote VPS ) and had the same freezing.
Monero vestion is 'Fluorine Fermi' (v0.18.0.0-release).

Also I tried to wait 24 hours when it unfreezes but it didn't help.
Also tried to change daemons - the same issue (sometimes works, sometimes doesn't).
I need a stable working for my app, hope it's my mistake in settings and not a bug of rpc server.

[gst2233]

I found the reason why it's unresponsive #7431
But I still can't understand how to set stable connection to daemons .

[selsta]

Did you try running your own daemon, or connect to a clearnet one?

[gst2233]

Thanks. I'm trying to use remote daemons from this list https://monero.fail/
Also I found that log-level 2 shows that daemons works, but synchronization is long.
Why is it such a long in compare with https://featherwallet.org/ (for example)?

[selsta]

Restoring a wallet from height 0 will takes a while with a remote node.

[gst2233]

Got it. Is there some approach to increase speed of synchronization? Maybe multichannel connection to different daemons or something like this?

[selsta]

Run a local node :)

[gst2233]

Thanks :)