Rpc work Queue Exceeded

External question — Bitcoin Stack Exchange Author: Abbeville Original post: https://bitcoin.stackexchange.com/questions/117044 License: CC BY-SA 4.0 — https://creativecommons.org/licenses/by-sa/4.0/ Adaptation: HTML converted to plain text; contact email addresses removed. I am trying to make rpc calls to an Rpc Interface "listunspent". So i get this Error: ESOCKETTIMEDOUT. I checked the bitcoin node debug file and saw the error message "Depth queue work exceeded". I have added this option rpcworkqueue= settings to the bitcoin.conf file. Here is my bitcoin.conf file prune=550 port=8333 rpcworkqueue=1000 rpcuser=user rpcpassword=userpass zmqpubrawblock=tcp://127.0.0.1:29000 zmqpubrawtx=tcp://127.0.0.1:29000 zmqpubhashtx=tcp://127.0.0.1:29000 zmqpubhashblock=tcp://127.0.0.1:29000 The following is the error response i get while trying to make rpc calls from my node app { "status": 500, "error": { "name": "RequestError", "message": "Error: ESOCKETTIMEDOUT", "cause": { "code": "ESOCKETTIMEDOUT", "connect": false }, "error": { "code": "ESOCKETTIMEDOUT", "connect": false }, "options": { "auth": { "user": "user", "pass": "userpass" }, "uri": "/", "baseUrl": "http://127.0.0.1:8332", "timeout": 30, "json": true, "body": { "method": "listunspent", "params": {}, "jsonrpc": 1, "id": "rpc-bitcoin" }, "method": "POST", "simple": true, "resolveWithFullResponse": false, "transform2xxOnly": false } } } Any help to solve this?

External answer — Bitcoin Stack Exchange Author: Geremia Original post: https://bitcoin.stackexchange.com/a/122800 License: CC BY-SA 4.0 — https://creativecommons.org/licenses/by-sa/4.0/ Adaptation: HTML converted to plain text; contact email addresses removed. Something is trying to make too many simultaneous RPC requests. Running parallel jobs making RPC requests, I've noticed that only 2 requests can be made simultaneously for certain things, and even then it occasionally threw error: Server response: Work queue depth exceeded .