Commit graph

119 commits

Author SHA1 Message Date
Alexander Blair
c108c5e2f0
Merge pull request #6354
67ade8005 Add randomized delay when forwarding txes from i2p/tor -> ipv4/6 (Lee Clagett)
2020-08-09 06:42:49 -07:00
Alexander Blair
36d50d93f2
Merge pull request #6534
7bd66b01b daemon: guard against rare 'difficulty drift' bug with checkpoints and recalculation (stoffu)
2020-07-19 03:36:39 -07:00
stoffu
7bd66b01bf
daemon: guard against rare 'difficulty drift' bug with checkpoints and recalculation
On startup, it checks against the difficulty checkpoints, and if any mismatch is found, recalculates all the blocks with wrong difficulties. Additionally, once a week it recalculates difficulties of blocks after the last difficulty checkpoint.
2020-06-09 10:40:51 +09:00
Lee Clagett
67ade80055 Add randomized delay when forwarding txes from i2p/tor -> ipv4/6 2020-05-15 07:57:35 +00:00
SomaticFanatic
5ef0607da6 Update copyright year to 2020
Update copyright year to 2020
2020-05-06 22:36:54 -04:00
Lee Clagett
02d887c2e5 Adding Dandelion++ support to public networks:
- New flag in NOTIFY_NEW_TRANSACTION to indicate stem mode
  - Stem loops detected in tx_pool.cpp
  - Embargo timeout for a blackhole attack during stem phase
2020-03-26 15:01:30 +00:00
moneromooo-monero
8958b4e7aa
blockchain_db: faster fetching of consecutive txes
Useful for wallet refresh or node sync
2020-02-27 15:05:34 +00:00
Alexander Blair
8eedc8a390
Merge pull request #6140
08635a08 blockchain: speedup fetching pruned contiguous tx blobs (moneromooo-monero)
2020-01-25 16:55:18 -08:00
moneromooo-monero
08635a0875
blockchain: speedup fetching pruned contiguous tx blobs
About twice as fast, very roughly
2019-11-15 13:23:30 +00:00
Lee Clagett
70c9cd3c9c Change to Tx diffusion (Dandelion++ fluff) instead of flooding 2019-11-04 09:23:20 +00:00
Lee Clagett
5d7ae2d279 Adding support for hidden (anonymity) txpool 2019-11-02 20:36:03 +00:00
luigi1111
bf525793c7
Merge pull request #5915
8330e77 monerod can now sync from pruned blocks (moneromooo-monero)
2019-10-08 15:55:03 -05:00
moneromooo-monero
8330e772f1
monerod can now sync from pruned blocks
If the peer (whether pruned or not itself) supports sending pruned blocks
to syncing nodes, the pruned version will be sent along with the hash
of the pruned data and the block weight. The original tx hashes can be
reconstructed from the pruned txes and theur prunable data hash. Those
hashes and the block weights are hashes and checked against the set of
precompiled hashes, ensuring the data we received is the original data.
It is currently not possible to use this system when not using the set
of precompiled hashes, since block weights can not otherwise be checked
for validity.

This is off by default for now, and is enabled by --sync-pruned-blocks
2019-09-27 00:10:37 +00:00
Jesus Ramirez
f9b3f6ef3b Removed Berkeley DB and db switching logic 2019-09-16 16:18:05 +02:00
luigi1111
4b76656f5c
Merge pull request #5524
06b8f29 blockchain: keep alternative blocks in LMDB (moneromooo-monero)
2019-07-24 14:04:16 -05:00
moneromooo-monero
4b51f9a34f
core: do not commit half constructed batch db txn 2019-05-25 16:24:56 +00:00
moneromooo-monero
06b8f29992
blockchain: keep alternative blocks in LMDB
Alternative blocks are cleared on startup unless --keep-alt-blocks
is passed on the command line
2019-05-08 17:36:52 +00:00
moneromooo-monero
5e673c03fe
blockchain_db: fix db txn ending too early
The db txn in add_block ending caused the entire overarching
batch txn to stop.
Also add a new guard class so a db txn can be stopped in the
face of exceptions.

Also use a read only db txn in init when the db itself is
read only, and do not save the max tx size in that case.
2019-04-14 08:35:38 +00:00
moneromooo-monero
089c7637a6
cryptonote: rework block blob size sanity check
Use the actual block weight limit, assuming that weight is always
greater or equal to size
2019-04-05 09:35:19 +00:00
Riccardo Spagni
5ac46c5310
Merge pull request #5256
4b21d38d blockchain: speed up getting N blocks weights/long term weights (moneromooo-monero)
2019-03-21 14:48:40 +02:00
moneromooo-monero
4b21d38dfd
blockchain: speed up getting N blocks weights/long term weights 2019-03-08 12:04:14 +00:00
binaryFate
1f2930ce0b Update 2019 copyright 2019-03-05 22:05:34 +01:00
moneromooo-monero
79b4e9f377
save some database calls when getting top block hash and height 2019-03-05 11:58:05 +00:00
moneromooo-monero
b044d03a51
Avoid repeated (de)serialization when syncing 2019-03-05 11:57:55 +00:00
moneromooo-monero
b8787f4302
ArticMine's new block weight algorithm
This curbs runaway growth while still allowing substantial
spikes in block weight

Original specification from ArticMine:

here is the scaling proposal
Define: LongTermBlockWeight
Before fork:
LongTermBlockWeight = BlockWeight
At or after fork:
LongTermBlockWeight = min(BlockWeight, 1.4*LongTermEffectiveMedianBlockWeight)
Note: To avoid possible consensus issues over rounding the LongTermBlockWeight for a given block should be calculated to the nearest byte, and stored as a integer in the block itself. The stored LongTermBlockWeight is then used for future calculations of the LongTermEffectiveMedianBlockWeight and not recalculated each time.
Define:   LongTermEffectiveMedianBlockWeight
LongTermEffectiveMedianBlockWeight = max(300000, MedianOverPrevious100000Blocks(LongTermBlockWeight))
Change Definition of EffectiveMedianBlockWeight
From (current definition)
EffectiveMedianBlockWeight  = max(300000, MedianOverPrevious100Blocks(BlockWeight))
To (proposed definition)
EffectiveMedianBlockWeight  = min(max(300000, MedianOverPrevious100Blocks(BlockWeight)), 50*LongTermEffectiveMedianBlockWeight)
Notes:
1) There are no other changes to the existing penalty formula, median calculation, fees etc.
2) There is the requirement to store the LongTermBlockWeight of a block unencrypted in the block itself. This  is to avoid possible consensus issues over rounding and also to prevent the calculations from becoming unwieldy as we move away from the fork.
3) When the  EffectiveMedianBlockWeight cap is reached it is still possible to mine blocks up to 2x the EffectiveMedianBlockWeight by paying the corresponding penalty.

Note: the long term block weight is stored in the database, but not in the actual block itself,
since it requires recalculating anyway for verification.
2019-03-04 09:33:58 +00:00
moneromooo-monero
b750fb27b0
Pruning
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.
2019-01-22 20:30:51 +00:00
moneromooo-monero
a6216d1ac2
blockchain_db: allow getting output keys without commitment
Since the commitment has to be calculated for non rct outputs,
it slows down a lot unnecessarily if we don't need it
2019-01-16 20:13:08 +00:00
Riccardo Spagni
9d57ee9ff6
Merge pull request #4984
008647d7 blockchain_db: speedup tx output gathering (moneromooo-monero)
2019-01-16 19:06:07 +02:00
moneroexamples
ec68cf822f Make get_output_key method const
get_output_key method is commonly used when working with txs and their key images. Because the method is not const, passing blockchain object though const& or pointers to const is not possible in this context. This is especially problematic in external projects (e.g., projects in moneroexamples) that use monero C++ api to operate on the blockchain and txs.

Thus, having get_output_key method will simplify moving blockchain object around through const references and pointers to const objects.
2019-01-07 05:53:14 +08:00
moneromooo-monero
008647d7eb
blockchain_db: speedup tx output gathering
We know all the data we'll want for getblocks.bin is contiguous
2018-12-18 11:55:21 +00:00
Riccardo Spagni
d855f9bb92
Merge pull request #4901
a48f2dab blockchain_prune_known_spent_data: blackball file is now optional (moneromooo-monero)
17b45725 Outputs where all amounts are known spent can now be pruned (moneromooo-monero)
2018-12-12 11:57:31 +02:00
Riccardo Spagni
c00ac446fd
Merge pull request #4854
bd98e99c Removed a lot of unnecessary includes (Martijn Otto)
2018-12-04 17:08:42 +02:00
moneromooo-monero
17b45725af
Outputs where all amounts are known spent can now be pruned
Only for pre rct for obvious reasons.

Note: DO NOT use a known spent list which includes outputs
which are not known spent. If the list includes any output
that's just strongly thought to be spent, but not provably
so, you risk finding yourself unable to sync past the point
where that output is spent.

I estimate only 200 MB saved on current mainnet though,
unless the new blackballing rule unearths a good amount of
large-amount-set extra spent outs.
2018-11-27 15:45:42 +00:00
moneromooo-monero
fc98f7a0a1
rpc: speedup get_outs.bin 2018-11-26 18:56:23 +00:00
Martijn Otto
bd98e99c80
Removed a lot of unnecessary includes 2018-11-15 17:29:34 +01:00
moneromooo-monero
6ecc99ad1f
core: avoid unnecessary tx/blob conversions 2018-11-01 15:51:19 +00:00
moneromooo-monero
4eca42b241
blockchain_db: initialize m_hardfork in ctor just in case
Coverity 136568
2018-10-16 11:58:46 +00:00
moneromooo-monero
5ffb2ff9b7
v8: per byte fee, pad bulletproofs, fixed 11 ring size 2018-09-11 13:38:07 +00:00
moneromooo-monero
43f71100bc
blockchain_db: remove unused get_output_key variant
It was actually incorrect, as it would not return commitment
2018-07-30 21:57:47 +00:00
luigi1111
3e026ff6ed
Merge pull request #4013
e5592c4 rpc: add blockchain disk size to getinfo (moneromooo-monero)
2018-07-19 13:40:42 -05:00
luigi1111
21afa71ba6
Merge pull request #3981
45e419b db: store cumulative rct output distribution in the db for speed (moneromooo-monero)
2018-07-19 13:39:24 -05:00
luigi1111
025187e6c9
Merge pull request #3854
149da42 db_lmdb: enable batch transactions by default (stoffu)
34cb6b4 add --regtest and --fixed-difficulty for regression testing (vicsn)
9e1403e update get_info RPC and bump RPC version (vicsn)
207b66e first new functional tests (vicsn)
2018-07-19 13:35:25 -05:00
moneromooo-monero
45e419bd5c
db: store cumulative rct output distribution in the db for speed
This gets rid of the temporary precalc cache.

Also make the RPC able to send data back in binary or JSON,
since there can be a lot of data

This bumps the LMDB database format to v3, with migration.
2018-07-13 11:37:04 +01:00
victorsintnicolaas
34cb6b4b70 add --regtest and --fixed-difficulty for regression testing
on_generateblocks RPC call combines functionality from the on_getblocktemplate and on_submitblock RPC calls to allow rapid block creation. Difficulty is set permanently to 1 for regtest.
Makes use of FAKECHAIN network type, but takes hard fork heights from mainchain
Default reserve_size in generate_blocks RPC call is now 1. If it is 0, the following error occurs 'Failed to calculate offset for'.
Queries hard fork heights info of other network types
2018-06-29 10:06:11 +02:00
moneromooo-monero
e5592c4bab
rpc: add blockchain disk size to getinfo
This should help new nodes predict how much disk space will be
needed for a full sync
2018-06-20 23:48:37 +01:00
moneromooo-monero
d81e042306
tx_pool: initialize bitflags padding since it gets written to storage
Avoids valgrind reporting uninitialized data usage
2018-06-05 20:26:44 +01:00
moneromooo-monero
b9389e582e
db_lmdb: save pruned and prunable tx data separately
This bumps DB version to 2, migration code will run for v1 DBs
2018-05-23 22:48:12 +01:00
moneromooo-monero
5f8ffca34d
speed up get_output_distribution (and precalc common case) 2018-05-21 19:51:58 +01:00
moneromooo-monero
ffeeefde60
speedup get_output_histogram for all amounts when min_count > 0
This skips the vast majority of "dust" output amounts with just
one instance on the chain. Clocks in at 0.15% of the original
time on testnet.
2018-04-23 10:54:28 +01:00
moneromooo-monero
41f727ce42
add RPC to get a histogram of outputs of a given amount 2018-03-16 10:32:26 +00:00