How to Restart Nodeos Block Producer

Question

yesterday I created and launched a single node test net on MacOS. To shut it down I pressed CTRL + C and then shut down my computer a while after.

Today I tried to restart the block producer with nodeos and got this:

[mikeys-iMac:~ mikey$ nodeos
3086500ms thread-0   chain_plugin.cpp:125          plugin_initialize    ]
 initializing chain plugin
3086502ms thread-0   block_log.cpp:120             open                 ]
 Log is nonempty
3086502ms thread-0   block_log.cpp:123             open                 ]
 my->head->block_num(): 1 
3086502ms thread-0   block_log.cpp:129             open                 ]
 Index is nonempty
3086526ms thread-0   http_plugin.cpp:247           plugin_initialize    ]
 configured http to listen on 127.0.0.1:8888
3086526ms thread-0   net_plugin.cpp:2822           plugin_initialize    ]
 Initialize net plugin
3086526ms thread-0   net_plugin.cpp:2843           plugin_initialize    ]
 host: 0.0.0.0 port: 9876 
3086526ms thread-0   net_plugin.cpp:2915           plugin_initialize    ]
 my node_id is c483a327e508ab99d2039b4604ea4e8086dc84d9becd9f373f4df512d8397ad8
3086526ms thread-0   main.cpp:94                   main                 ]
 nodeos version 29c30f10
3086526ms thread-0   main.cpp:95                   main                 ]
 eosio root is /Users/mikey/Library/Application Support
3086527ms thread-0   chain_plugin.cpp:253          plugin_startup       ]
 starting chain in read/write mode
3086527ms thread-0   chain_plugin.cpp:258          plugin_startup       ]
 Blockchain started; head block is #1, genesis timestamp is 2018-03-02T12:00:00.000
3086527ms thread-0   http_plugin.cpp:285           plugin_startup       ]
 start listening for http requests
3086527ms thread-0   net_plugin.cpp:2927           plugin_startup       ]
 starting listener, max clients is 25
3086527ms thread-0   producer_plugin.cpp:381       plugin_startup       ] 
 producer plugin:  plugin_startup() begin
3086527ms thread-0   producer_plugin.cpp:397       plugin_startup       ]
 No producers configured! Starting as a validator
3086527ms thread-0   producer_plugin.cpp:401       plugin_startup       ]
 producer plugin:  plugin_startup() end

How do I make it start producing blocks again so that I can continue with the rest of the EOSIO tutorials?

Would also greatly appreciate a short explanation of correct starting / stopping procedures in a development environment. Thank you (:

Answer 1

No producers configured! - You are trying to run nodeos without a block producer.

You can set a producer command line with -p <producername> in this case -p eosio

Alternatively, you can set the producer name in the config file which is generated when you first run nodeos.

nodeos uses a custom configuration folder. The location of this folder is determined by your system.

Mac OS: ~/Library/Application Support/eosio/nodeos/config

Linux: ~/.local/share/eosio/nodeos/config

The build seeds this folder with a default genesis.json file and a config.ini file

In config.ini you can add the following line to set the producer name to run nodeos without the extra option & argument:

 # Enable block production with the testnet producers
 producer-name = eosio

See 'Advanced Steps' in Creating and Launching a Single Node Testnet

As far as stopping/starting, CTRL + C should kill the process allowing you to start it right back up again. I can recreate the same error in Ubuntu if I suspend the process with CNTRL + Z and attempt to run nodeos again.