The blockchain prunes seven eighths of prunable tx data.
This saves about two thirds of the blockchain size, while
keeping the node useful as a sync source for an eighth
of the blockchain.
No other data is currently pruned.
There are three ways to prune a blockchain:
- run monerod with --prune-blockchain
- run "prune_blockchain" in the monerod console
- run the monero-blockchain-prune utility
The first two will prune in place. Due to how LMDB works, this
will not reduce the blockchain size on disk. Instead, it will
mark parts of the file as free, so that future data will use
that free space, causing the file to not grow until free space
grows scarce.
The third way will create a second database, a pruned copy of
the original one. Since this is a new file, this one will be
smaller than the original one.
Once the database is pruned, it will stay pruned as it syncs.
That is, there is no need to use --prune-blockchain again, etc.
Number matching semantics are slightly changed: since this is used
as a filter to check whether a number is signed and/or floating
point, we can speed this up further. strto* functions are called
afterwards and will error out where necessary. We now also accept
numbers like .4 which were not accepted before.
The strto* calls on a boost::string_ref will not access unallocated
memory since the parsers always stop at the first bad character,
and the original string is zero terminated.
in arbitrary time measurement units for some arbitrary test case:
match_number2: 235 -> 70
match_word2: 330 -> 108
a13eb0a1 epee: speed up string matching a bit (moneromooo-monero)
3a3858dc epee: avoid string allocation when parsing a pod from string (moneromooo-monero)
ab783b17 easylogging++: ensure logger is initialized before main (moneromooo-monero)
9b69a0ae daemon: print monero version at startup when calling a detached daemon (moneromooo-monero)
4d71d463 mlocker: remove early page size log (moneromooo-monero)
b36353e2 unit_tests: add some hex parsing test for non hex input (xiphon)
6671110c unit_tests: add a test for parse_hexstr_to_binbuff (moneromooo-monero)
f6187cd8 epee: speed up parse_hexstr_to_binbuff a little (Howard Chu)
It comes before the logger is initialized, so gets displayed
even though it should not be by default, and apparenly comes
too early for (some versions of) Android, where it crashes.
This prevents exceptions from showing up in various awkward
places such as dtors, since the only exception that can be
thrown is a lock failure, and nothing handles a lock failure
anyway.
