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Previously, the undo weren't being flushed during a reindex because
fKnown was set to true in FindBlockPos. That is the correct behaviour
for block files as they aren't being touched, but undo files are
touched.
This changes the behaviour to always flush when switching to a new file
(even for block files, though that isn't really necessary).
Rebased-From: 22e780737db57bcb18b3824eb8158e19a4775cb6
Github-Pull: #6948
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af6edac *: alias -h for --help (Daniel Cousens)
131d7f9 Change URLs to https in debian/control (Matt Corallo)
7ce2c91 Update debian/changelog and slight tweak to debian/control (Matt Corallo)
4fbfebe Correct spelling mistakes in doc folder (Mitchell Cash)
e42bf16 Clarification of unit test build instructions. (Eric Lombrozo)
54f9dee Update bluematt-key, the old one is long-since revoked (Matt Corallo)
bfc6154 [Trivial] Fixed typo when referring to a previous section in depends/README.md [skip ci] (Chris Kleeschulte)
9e45157 build: disable -Wself-assign (Wladimir J. van der Laan)
33d6825 Bugfix: Allow mining on top of old tip blocks for testnet (fixes testnet-in-a-box use case) (Luke Dashjr)
87a797a build: Remove dependency of bitcoin-cli on secp256k1 (Wladimir J. van der Laan)
a33cd5b [trivial] Fix rpc message "help generate" (MarcoFalke)
6fd0019 Drop "with minimal dependencies" from description (Zak Wilcox)
2394f4d Split bitcoin-tx into its own package (Zak Wilcox)
1e672ae Include bitcoin-tx binary on Debian/Ubuntu (Zak Wilcox)
b3eaa30 [Qt] Raise debug window when requested (MarcoFalke)
01878c9 Fix locking in GetTransaction. (Alex Morcos)
9b9acc2 Fix spelling of Qt (Diego Viola)
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lock-time calculations
The lock-time code currently uses CBlock::nTime as the cutoff point for time based locked transactions. This has the unfortunate outcome of creating a perverse incentive for miners to lie about the time of a block in order to collect more fees by including transactions that by wall clock determination have not yet matured. By using CBlockIndex::GetMedianTimePast from the prior block instead, the self-interested miner no longer gains from generating blocks with fraudulent timestamps. Users can compensate for this change by simply adding an hour (3600 seconds) to their time-based lock times.
If enforced, this would be a soft-fork change. This commit only adds the functionality on an unexecuted code path, without changing the behaviour of Bitcoin Core.
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Also clarify startup message.
Github-Pull: #6856
Rebased-From: d3b09f6bac738958b6bf5711bcb5291049b7466d
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6af25b0 Add BIP65 to getblockchaininfo softforks list (Peter Todd)
ba1da90 Show softfork status in getblockchaininfo (Wladimir J. van der Laan)
70a427b CLTV: Add more tests to improve coverage (Esteban Ordano)
c5a27f4 Add RPC tests for the CHECKLOCKTIMEVERIFY (BIP65) soft-fork (Peter Todd)
5e82e1c Add CHECKLOCKTIMEVERIFY (BIP65) soft-fork logic (Peter Todd)
6ea5ca4 Enable CHECKLOCKTIMEVERIFY as a standard script verify flag (Peter Todd)
4fa7a04 Replace NOP2 with CHECKLOCKTIMEVERIFY (BIP65) (Peter Todd)
6ec08db Move LOCKTIME_THRESHOLD to src/script/script.h (Peter Todd)
684636b Make CScriptNum() take nMaxNumSize as an argument (Peter Todd)
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testnet-in-a-box use case)
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GetTransaction needs to lock cs_main until ReadBlockFromDisk completes, the data inside CBlockIndex's can change since pruning. This lock was held by all calls to GetTransaction except rest_tx.
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To bridge the time until a dynamic method for determining this fee is
merged.
This is especially aimed at the stable releases (0.10, 0.11) because
full mempool limiting, as will be in 0.12, is too invasive and risky to
backport.
Github-Pull: #6793
Rebased-From: 28e3249e53b8ef7516636df0f1406466a513095d 4e2efb3c5fde4b1e332cc032e3dc4082ec4e3cac
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The main effect is to exit processing for recently-rejected hashes,
in case they are pushed to us without prior advertisement. This
behavior was seen in the wild.
An additional effect is to do early checks for mempool or mapOrphan
existence. No logging or nDoS tracking is needed for failures of
these checks.
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Based on the earlier BIP66 soft-fork logic implemented by Pieter
Wuille's 5a47811da5158df763aa2fca09ce646ee0c51e7b
Rebased-From: 287f54fc90c29301faede8d4ac2ea24a91441917
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This avoids that premature return in the condition that a new chain is initialized
results in NULL pointer errors due to recentReject not being constructed.
Also add assertions where it is used.
(cherry picked from commit a8d0407c4fcf7c4e8ed0e8edabd204f7a4efa477)
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Nodes can have divergent policies on which transactions they will accept
and relay. This can cause you to repeatedly request and reject the same
tx after its inved to you from various peers which have accepted it.
Here we add rolling bloom filter to keep track of such rejections,
clearing the filter every time the chain tip changes.
Credit goes to Alex Morcos, who created the patch that this code is
based on.
Original code by Peter Todd. Refactored to not construct the
filter at startup time by Pieter Wuille.
(cherry picked from commit 0847d9cb5fcd2fdd5a21bde699944d966cf5add9)
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While CBloomFilter is usually used with an explicitly set nTweak,
CRollingBloomFilter is only used internally. Requiring every caller to
set nTweak is error-prone and redundant; better to have the class handle
that for you with a high-quality randomness source.
Additionally when clearing the filter it makes sense to change nTweak as
well to recover from a bad setting, e.g. due to insufficient randomness
at initialization, so the clear() method is replaced by a reset() method
that sets a new, random, nTweak value.
(cherry picked from commit d2d7ee0e863b286e1c9f9c54659d494fb0a7712d)
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45bfa13 PARTIAL: typofixes (found by misspell_fixer) (Veres Lajos)
21c406e add support for miniupnpc api version 14 (Pavel Vasin)
13bd5a7 rpc-tests: re-enable rpc-tests for Windows (Cory Fields)
ccc4ad6 net: Set SO_REUSEADDR for Windows too (Cory Fields)
1f6772e add unit test for CNetAddr::GetGroup. (Alex Morcos)
13642a5 Fix masking of irrelevant bits in address groups. (Alex Morcos)
6b51b9b Replace boost::reverse_lock with our own. (Casey Rodarmor)
626c5e6 Make sure we re-acquire lock if a task throws (Casey Rodarmor)
4877053 Add missing files to files.md (fanquake)
f171fee Handle leveldb::DestroyDB() errors on wipe failure (Adam Weiss)
c5b89fe Fix race condition on test node shutdown (Casey Rodarmor)
4a37410 Handle no chain tip available in InvalidChainFound() (Ross Nicoll)
f6d29a6 Use unique name for AlertNotify tempfile (Casey Rodarmor)
e6adac7 Delay initial pruning until after wallet init (Adam Weiss)
e0020d4 Make sure LogPrint strings are line-terminated (J Ross Nicoll)
7ff9d12 Make sure LogPrintf strings are line-terminated (Wladimir J. van der Laan)
5a39133 build: fix libressl detection (Cory Fields)
f6355e6 Avoid leaking file descriptors in RegisterLoad (Casey Rodarmor)
60457d3 locking: fix a few small issues uncovered by -Wthread-safety (Cory Fields)
a496e11 Remove bash test note from rpc-tests readme (fanquake)
49c6a64 tests: Remove old sh-based test framework (Wladimir J. van der Laan)
a37567d Add autogen.sh to source tarball. (randy-waterhouse)
1f4d7cf travis: for travis generating an extra build (Cory Fields)
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Upstream: 9f68ed6b6d1a9c6436ce37913666165f2b180ee3 (PR #6539)
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Handle the case where no chain tip is available, in InvalidChainFound(). This fixes a null pointer deference when running unit tests, if the genesis block or block validation code is broken.
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Fix the cases where LogPrint[f] was accidentally called without line
terminator, which resulted in concatenated log lines.
(see e.g. #6492)
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Github-Pull: #6224
Rebased-From: bfc30b34374d71928acee5ff41282f09cedfd5e4 6b1066fab41523d25d75b45a10e4b0f61d7c61d0 04b5d235f1560b8285591b963d3636f7ddf74563 59b49cd07482494d9a99068af502be9ceda41ed2
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This reverts commit bc484ef8db02715e283e4cddd2c972316c0688dd.
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Conflicts:
src/main.cpp
src/test/test_bitcoin.cpp
Github-Pull: #6077
Rebased-From: 17b11428c135203342aff38cabc8047e673f38ac 517e6dd25618522c716e64859554b0f29c6e65d0
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This prevents an edge case where a block downloaded and pruned
in-between successive calls to FindNextBlocksToDownload could
cause the block to be unnecessarily re-requested.
Github-Pull: #6233
Rebased-From: 3e9143386a90e508c8d41719294db11264f5f0a0
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The partition checking code was using chainActive timestamps
to detect partitioning; with headers-first syncing, it should use
(and with this pull request, does use) pIndexBestHeader timestamps.
Fixes issue #6251
Github-Pull: #6256
Rebased-From: 65b94545036ae6e38e79e9c7166a3ba1ddb83f66
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Make it possible to opt-out of the centralized alert system by providing
an option `-noalerts` or `-alerts=0`. The default remains unchanged.
This is a gentler form of #6260, in which I went a bit overboard by
removing the alert system completely.
I intend to add this to the GUI options in another pull after this.
Github-Pull: #6274
Rebased-From: 02a6702a82a5b00e0e0351041dd3267308b7f319
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In some corner cases, it may be possible for recent blocks to end up in
the same block file as much older blocks. Previously, the pruning code
would stop looking for files to remove upon first encountering a file
containing a block that cannot be pruned, now it will keep looking for
candidate files until the target is met and all other criteria are
satisfied.
This can result in a noncontiguous set of block files (by number) on
disk, which is fine except for during some reindex corner cases, so
make reindex preparation smarter such that we keep the data we can
actually use and throw away the rest. This allows pruning to work
correctly while downloading any blocks needed during the reindex.
Rebased-From: c257a8c9a6397eee40734b235a4fdcb8045aec91
Github-Pull: #6221
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We don't want to erase orphans that still have missing inputs, they should still be tracked as orphans. Also, the transaction thats being accepted can't be an orphan otherwise it would have previously been accepted, so doesn't need to be added to the erase queue.
Github-Pull: #5985
Rebased-From: 14d4eef79931318cb5968f9154cf458d9f8d27fa
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AcceptBlock will no longer process an unrequested block, unless it has not
been previously processed and has more work than chainActive.Tip()
Github-Pull: #5875
Rebased-From: 9be0e6837b878f72bd087ce32b7a2f2ffb2fd544
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Rebased-From: a1ba0778dd3c784046dea334e5d39f37eca264f7
Github-Pull: #6172
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Previously due to an off-by-one error the wallet ignored
nLockTime-by-height transactions that would be valid in the next block
even though they are accepted into the mempool. The transactions
wouldn't show up until confirmed, nor would they be included in the
unconfirmed balance. Similar to the mempool behavior fix in 665bdd3b,
the wallet code was calling IsFinalTx() directly without taking into
account the fact that doing so tells you if the transaction could have
been mined in the *current* block, rather than the next block.
To fix this we strip IsFinalTx() of non-consensus-critical
functionality, removing the default arguments, and add CheckFinalTx() to
check if a transaction will be final in the next block.
Github-Pull: #6183
Rebased-From: 28bf06236d3b385e95fe26a7a742395b30efd6ee
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8273793 Eliminate compiler warning due to unused variable (Suhas Daftuar)
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-UndoWriteToDisk
-WriteBlockToDisk
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da29ecb Consensus: MOVEONLY: Move CValidationState from main consensus/validation (jtimon)
27afcd8 Consensus: Refactor: Decouple CValidationState from main::AbortNode() (Cory Fields)
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8ba7f84 Reduce download timeouts as blocks arrive (Suhas Daftuar)
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36cba8f Alert if it is very likely we are getting a bad chain (Gavin Andresen)
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935bd0a Chainparams: Refactor: Decouple main::GetBlockValue() from Params() [renamed GetBlockSubsidy] (Jorge Timón)
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GetBlockSubsidy]
Remove redundant getter CChainParams::SubsidyHalvingInterval()
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Previously this was cleared only after UnlinkPrunedFiles, but it should really be cleared after FindFilesToPrune, regardless of whether there are any files to be pruned.
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51aa249 Chainparams: Refactor: Decouple IsSuperMajority from Params() (Jorge Timón)
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86a5f4b Relocate calls to CheckDiskSpace (Alex Morcos)
67708ac Write block index more frequently than cache flushes (Pieter Wuille)
b3ed423 Cache tweak and logging improvements (Pieter Wuille)
fc684ad Use accurate memory for flushing decisions (Pieter Wuille)
046392d Keep track of memory usage in CCoinsViewCache (Pieter Wuille)
540629c Add memusage.h (Pieter Wuille)
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Create a monitoring task that counts how many blocks have been found in the last four hours.
If very few or too many have been found, an alert is triggered.
"Very few" and "too many" are set based on a false positive rate of once every fifty years of constant running with constant hashing power, which works out to getting 5 or fewer or 48 or more blocks in four hours (instead of the average of 24).
Only one alert per day is triggered, so if you get disconnected from the network (or are being Sybil'ed) -alertnotify will be triggered after 3.5 hours but you won't get another -alertnotify for 24 hours.
Tested with a new unit test and by running on the main network with -debug=partitioncheck
Run test/test_bitcoin --log_level=message to see the alert messages:
WARNING: check your network connection, 3 blocks received in the last 4 hours (24 expected)
WARNING: abnormally high number of blocks generated, 60 blocks received in the last 4 hours (24 expected)
The -debug=partitioncheck debug.log messages look like:
ThreadPartitionCheck : Found 22 blocks in the last 4 hours
ThreadPartitionCheck : likelihood: 0.0777702
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b649e03 Create new BlockPolicyEstimator for fee estimates (Alex Morcos)
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This class groups transactions that have been confirmed in blocks into buckets, based on either their fee or their priority. Then for each bucket, the class calculates what percentage of the transactions were confirmed within various numbers of blocks. It does this by keeping an exponentially decaying moving history for each bucket and confirm block count of the percentage of transactions in that bucket that were confirmed within that number of blocks.
-Eliminate txs which didn't have all inputs available at entry from fee/pri calcs
-Add dynamic breakpoints and tracking of confirmation delays in mempool transactions
-Remove old CMinerPolicyEstimator and CBlockAverage code
-New smartfees.py
-Pass a flag to the estimation code, using IsInitialBlockDownload as a proxy for when we are still catching up and we shouldn't be counting how many blocks it takes for transactions to be included.
-Add a policyestimator unit test
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Make sure we're checking disk space for block index writes and allow for pruning to happen before chainstate writes.
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