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Nodeos Troubleshooting

"Database dirty flag set (likely due to unclean shutdown): replay required"​

nodeos needs to be shut down cleanly. To ensure this is done, send a SIGTERM, SIGQUIT or SIGINT and wait for the process to shutdown. Failing to do this will result in this error. If you get this error, your only recourse is to replay by starting nodeos with --replay-blockchain

"Memory does not match data" Error at Restart​

If you get an error such as St9exception: content of memory does not match data expected by executable when trying to start nodeos, try restarting nodeos with one of the following options (you can use nodeos --help to get a full listing of these).

Command Line Options for eosio::chain_plugin:
    --force-all-checks                    do not skip any checks that can be
                                          skipped while replaying irreversible
                                          blocks
    --replay-blockchain                   clear chain state database and replay
                                          all blocks
    --hard-replay-blockchain              clear chain state database, recover as
                                          many blocks as possible from the block
                                          log, and then replay those blocks
    --delete-all-blocks                   clear chain state database and block
                                          log

"Could not grow database file to requested size." Error​

Start nodeos with --shared-memory-size-mb 1024. A 1 GB shared memory file allows approximately half a million transactions.

What version of Antelope am I running/connecting to?​

If defaults can be used, then cleos get info will output a block that contains a field called server_version. If your nodeos is not using the defaults, then you need to know the URL of the nodeos. In that case, use the following with your nodeos URL:

cleos --url http://localhost:8888 get info

To focus only on the version line within the block:

cleos --url http://localhost:8888 get info | grep server_version

Error 3070000: WASM Exception Error​

If you try to deploy the eosio.bios contract or eosio.system contract in an attempt to boot an Antelope-based blockchain and you get the following error or similar: Publishing contract... Error 3070000: WASM Exception Error Details: env.set_proposed_producers_ex unresolveable, it is because you have to activate the PREACTIVATE_FEATURE protocol first.