* core: do not commit half constructed batch db txn
* Add defer macro
* Revert dumb extra copy/move change
* Fix pop_blocks not calling hooks, fix BaseTestDB missing prototypes
* Merge ServiceNodeCheckpointing5 branch, syncing and integration fixes
* Update tests to compile with relaxed-registration changes
* Get back to feature parity pre-relaxed registration changes
* Remove debug changes noticed in code review and some small bugs
* Initial updates to allow syncing of checkpoints in protocol_handler
* Handle checkpoints in prepare_handle_incoming_blocks
* Debug changes for testing, cancel changes later
* Add checkpoint pruning code
* Reduce DB checkpoint accesses, sync votes for up to 60 blocks
* Remove duplicate lifetime variable
* Move parsing checkpoints to above early return for consistency
* Various integration test fixes
- Don't try participate in quorums at startup if you are not a service node
- Add lock for when potentially writing to the DB
- Pre-existing batch can be open whilst updating checkpoint so can't use
DB guards
- Temporarily emit the ban message using msgwriter instead of logs
* Integration mode bug fixes
- Always deserialize empty quorums so get_testing_quorum only fails when
an actual critical error has occurred
- Cache the last culled height so we don't needlessly query the DB over
the same heights trying to delete already-deleted checkpoints
- Submit votes when new blocks arrive for more reliable vote
transportation
* Undo debug changes for testing
* Update incorrect DB message and stale comment
* Beging adding functions to recalculate difficulty
* Add command line args to utility for recalculating difficulty
* Exception safety for recalculating difficulty
* Update help text for recalc difficulty
* Add recalc flag on the daemon
* Make context be const, signify intent for var++ to 1
* Add functions for storing checkpoints to the DB
* Allocate the DB entry on the stack instead of heap
* Add virtual overrides for new checkpoint functions
* Clean up for pull request, simplify some logic
* Revise API to include height in checkpoint header
* Move log to top of function even if early exit
* Begin moving checkpoints to db
* Allow storing of checkpoints to DB
* Cleanup for code reviewer, fix unit tests
* Fix tests, fix casting issues
* Don't use DUPSORT, use height->checkpoint mapping in DB
* Remove if 0 disabling checkpoint vote, we already check HF12
* Fix unit test infinite loop
* Update db schemas to match blk_checkpoint_header
* Code review
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.
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.
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.
* Cleanup and undoing some protocol breakages
* Simplify expiration of nodes
* Request unlock schedules entire node for expiration
* Fix off by one in expiring nodes
* Undo expiring code for pre v10 nodes
* Fix RPC returning register as unlock height and not checking 0
* Rename key image unlock height const
* Undo testnet hardfork debug changes
* Remove is_type for get_type, fix missing var rename
* Move serialisable data into public namespace
* Serialise tx types properly
* Fix typo in no service node known msg
* Code review
* Fix == to >= on serialising tx type
* Code review 2
* Fix tests and key image unlock
* Add command to print locked key images
* Update ui to display lock stakes, query in print cmd blacklist
* Modify print stakes to be less slow
* Remove autostaking code
* Refactor staking into sweep functions
It appears staking was derived off stake_main written separately at
implementation at the beginning. This merges them back into a common
code path, after removing autostake there's only some minor differences.
It also makes sure that any changes to sweeping upstream are going to be
considered in the staking process which we want.
* Display unlock height for stakes
* Begin creating output blacklist
* Make blacklist output a migration step
* Implement get_output_blacklist for lmdb
* In wallet output selection ignore blacklisted outputs
* Apply blacklisted outputs to output selection
* Fix broken tests, switch key image unlock
* Fix broken unit_tests
* Begin change to limit locked key images to 4 globally
* Revamp prepare registration for new min contribution rules
* Fix up old back case in prepare registration
* Remove debug code
* Cleanup debug code and some unecessary changes
* Fix migration step on mainnet db
* Fix blacklist outputs for pre-existing DB's
* Remove irrelevant note
* Tweak scanning addresses for locked stakes
Since we only now allow contributions from the primary address we can
skip checking all subaddress + lookahead to speed up wallet scanning
* Define macro for SCNu64 for Mingw
* Fix failure on empty DB
* Add missing error msg, remove contributor from stake
* Improve staking messages
* Flush prompt to always display
* Return the msg from stake failure and fix stake parsing error
* Tweak fork rules for smaller bulletproofs
* Tweak pooled nodes minimum amounts
* Fix crash on exit, there's no need to store on destructor
Since all information about service nodes is derived from the blockchain
and we store state every time we receive a block, storing in the
destructor is redundant as there is no new information to store.
* Make prompt be consistent with CLI
* Check max number of key images from per user to node
* Implement error message on get_output_blacklist failure
* Remove resolved TODO's/comments
* Handle infinite staking in print_sn
* Atoi->strtol, fix prepare_registration, virtual override, stale msgs
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.
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.
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)
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.
