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CH03::config: update/clarify configuration option descriptions

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David A. Harding 2023-02-05 09:25:12 -10:00
parent b8a1ef31ad
commit aa316f415b
1 changed files with 13 additions and 21 deletions
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ch03.asciidoc
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@ -475,7 +475,7 @@ the most important options that you can set in the configuration file,
or as command-line parameters to +bitcoind+: or as command-line parameters to +bitcoind+:
alertnotify:: Run a specified command or script to send emergency alerts alertnotify:: Run a specified command or script to send emergency alerts
to the owner of this node, usually by email. to the owner of this node.
conf:: An alternative location for the configuration file. This only conf:: An alternative location for the configuration file. This only
makes sense as a command-line parameter to +bitcoind+, as it can't be makes sense as a command-line parameter to +bitcoind+, as it can't be
@ -490,28 +490,22 @@ prune:: Reduce the disk space requirements to this many megabytes, by
deleting old blocks. Use this on a resource-constrained node that can't deleting old blocks. Use this on a resource-constrained node that can't
fit the full blockchain. fit the full blockchain.
txindex:: Maintain an index of all transactions. This means a complete txindex:: Maintain an index of all transactions. This allows you to
copy of the blockchain that allows you to programmatically retrieve any programmatically retrieve any transaction by its ID provided that the
transaction by ID. block containing that transaction hasn't been pruned.
dbcache:: The size of the UTXO cache. The default is 300 MiB. Increase dbcache:: The size of the UTXO cache. The default is 450 MiB. Increase
this on high-end hardware and reduce the size on low-end hardware to this size on high-end hardware to read and write from your disk less
save memory at the expense of slow disk IO. often, or reduce the size on low-end hardware to save memory at the
expense of more using your disk more frequently.
maxconnections:: Set the maximum number of nodes from which to accept blocksonly:: Minimize your bandwidth usage you only accepting blocks of
connections. Reducing this from the default will reduce your bandwidth confirmed transactions from your peers instead of relaying unconfirmed
consumption. Use if you have a data cap or pay by the gigabyte. transactions.
maxmempool:: Limit the transaction memory pool to this many megabytes. maxmempool:: Limit the transaction memory pool to this many megabytes.
Use it to reduce memory use on memory-constrained nodes. Use it to reduce memory use on memory-constrained nodes.
maxreceivebuffer/maxsendbuffer:: Limit per-connection memory buffer to
this many multiples of 1000 bytes. Use on memory-constrained nodes.
minrelaytxfee:: Set the minimum fee rate for transaction you will relay.
Below this value, the transaction is treated nonstandard, rejected from
the transaction pool and not relayed.
[[txindex]] [[txindex]]
.Transaction Database Index and txindex Option .Transaction Database Index and txindex Option
**** ****
@ -525,7 +519,7 @@ transaction with commands like +getrawtransaction+ (see
Core to build a complete transaction index, which can be achieved with Core to build a complete transaction index, which can be achieved with
the +txindex+ option. Set +txindex=1+ in the Bitcoin Core configuration the +txindex+ option. Set +txindex=1+ in the Bitcoin Core configuration
file. If you don't set this option at first and later set it to full file. If you don't set this option at first and later set it to full
indexing, you need to restart +bitcoind+ with the +-reindex+ option and indexing, you need to
wait for it to rebuild the index. wait for it to rebuild the index.
**** ****
@ -551,12 +545,10 @@ smaller server.
==== ====
---- ----
alertnotify=myemailscript.sh "Alert: %s" alertnotify=myemailscript.sh "Alert: %s"
maxconnections=15 blocksonly=1
prune=5000 prune=5000
dbcache=150 dbcache=150
maxmempool=150 maxmempool=150
maxreceivebuffer=2500
maxsendbuffer=500
---- ----
==== ====