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This might be a dumb question: I started the Bitcoin daemon for an initial blockchain download. It immediately started downloading, I edited the Bitcoin.conf file with txindex=1. Stopped and restarted the daemon. How can I be sure the blockchain has txindex=1 correctly set? Should I reminded with the command line Bitcoind -reindex

How can I understand “looking” at a blockchain (day I downloaded from a torrent) that has txindex=1? Thanks

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You can check the debug logs (might require -debug flag) and see if it is indexing transactions:

$ tail -f ~/.bitcoin/debug.log

You can also try to get a transaction by txid, and if it returns transaction data, then the blockchain has been indexed for transactions (might have to wait for sync to complete):

$ bitcoin-cli getrawtransaction {txid}
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  • Will this ensure that the txindex contains all transactions, even those from blocks that were downloaded before -txindex was enabled?
    – Nate Eldredge
    Dec 8, 2018 at 16:35
  • @NateEldredge You can test it by fetching the transaction from block 1: bitcoin-cli -datadir=. getrawtransaction $(bitcoin-cli -datadir=. getblock 00000000839a8e6886ab5951d76f411475428afc90947ee320161bbf18eb6048 | jq -r '.tx[0]')
    – Janus Troelsen
    Feb 15, 2020 at 19:38

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