Owner API "can't create Tokio runtime" #509
Description
Describe the bug
After authenticating with wallet's Owner API, when calling
node_height
init_send_tx (estimate)
init_send_tx
retrieve_txs
for some time in a loop, in an interval, where init_send_tx is to an offline wallet (for the time being I don't know if this happens when the recipient's wallet is online) using Slatepack address (again, don't know if address's type plays a role), the below happens:
$ ./grin-wallet --floonet owner_api
20200813 19:07:26.094 WARN grin_wallet_controller::controller - Starting HTTP Owner API server at 127.0.0.1:3420.
20200813 19:07:26.094 WARN grin_wallet_controller::controller - HTTP Owner listener started.
20200813 20:17:18.172 ERROR grin_wallet_impls::node_clients::http - Error calling get_tip: Internal error: can't create Tokio runtime
20200813 20:17:33.202 ERROR grin_wallet_impls::node_clients::http - Error calling get_tip: Internal error: can't create Tokio runtime
20200813 20:17:48.228 ERROR grin_wallet_impls::node_clients::http - Error calling get_tip: Internal error: can't create Tokio runtime
20200813 20:18:03.276 ERROR grin_wallet_impls::node_clients::http - Error calling get_tip: Internal error: can't create Tokio runtime
20200813 20:18:18.308 ERROR grin_wallet_impls::node_clients::http - Error calling get_tip: Internal error: can't create Tokio runtime
20200813 20:18:33.355 ERROR grin_wallet_impls::node_clients::http - Error calling get_tip: Internal error: can't create Tokio runtime
and calling node_height then gives Ok.updated_from_node as false, when before it was true every time. When trying to authenticate with the wallet's Owner API again, calling init_secure_api goes through, but open_wallet gives
{
"code":-32099,
"message":"Lifecycle: Error opening wallet: Wallet store error: LMDB error: Too many open files , Data Dir: /[...]/.grin/floo/wallet_data"
}
Restarting the wallet's Owner API fixes the problem until it happens again after ~1h 10m. The interval in the loop is 15s.
Expected behavior
No error.
Desktop (please complete the following information):
Operating System: Arch Linux
Kernel: Linux 5.7.12-arch1-1
Architecture: x86-64
Wallet: 4.0.0
Additional context
I've seen the ulimit answer in #494, but it doesn't seem like a solution. I don't want to delay the problem, I want to fix it.
I don't get the other warn message that is quoted there, so I'm opening a new issue.