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My app launches Geth process like this: geth --cache=512 --rpc
Next it immediately starts to process incoming requests and sends some needed data to http://localhost:8545 (i.e. to geth for the interaction by RPC protocol).
However at the first time after launch (about 5 seconds) geth returns:
Failed to connect to localhost port 8545: Connection refused
Afterwards it works great.
Is such behavior standard?
it is normal, rpc server needs some time to run and sometimes it could fail then you should start it within the cli.
