Commit Graph

15597 Commits

Author SHA1 Message Date
Alexander Block
5c84cab0f1
Send/Receive multiple messages as part of one P2P message in CSigSharesManager (#2729)
* Return bool in ProcessMessageXXX methods to indicate misbehaviour

* Send/Receive multiple messages as part of one P2P message in CSigSharesManager

Many messages, especially QSIGSHARESINV and QGETSIGSHARES, are very small
by nature (5-14 bytes for a 50 members LLMQ). The message headers are
24 bytes, meaning that we produce a lot of overhead for these small messages.
This sums up quite a bit when thousands of signing sessions are happening
in parallel.

This commit changes all related P2P messages to send a vector of messages
instead of a single message.

* Remove bogus lines

Included these by accident

* Unify handling of BanNode in ProcessMessageXXX methods

* Remove bogus check for fMasternodeMode

* Properly use == instead of misleading >= in SendMessages

* Put "didSend = true" near PushMessage
2019-03-01 08:21:09 +01:00
Alexander Block
d2573c43b6 Only return from wait_for_chainlock when the block is actually processed (#2728)
getblock also returns blocks which are not processed yet or in the middle
of processing.
2019-02-27 20:42:06 +03:00
UdjinM6
5a61f7b16a
Merge pull request #2726 from codablock/pr_llmq_sessionids
Introduce "session announcements" and session IDs used in LLMQ P2P messages
2019-02-27 20:41:45 +03:00
Alexander Block
6ac49da246 Send QSIGSESANN messages when sending first message for a session 2019-02-27 17:34:08 +01:00
Alexander Block
8ce8cb9ca8 Remove MarkXXX methods from CSigSharesNodeState
We're now directly calling the Merge/Set methods on the inventory objects.
2019-02-27 17:33:40 +01:00
Alexander Block
fa25728ca5 Use new sessionId based session management in CSigSharesManager
Stop relying on the information previously found in the CSigSharesInv
and CBatchedSigShares messages and instead use the information found in
the session refereced by the session id.

This also updates a few LogPrintf calls. Previously, CSigSharesInv::ToString
also included the signHash in the returned string, which is not the case
anymore, so we have to add it manually.
2019-02-27 17:33:40 +01:00
Alexander Block
34e3f8eb53 Implement session management based on session ids and announcements 2019-02-27 17:33:40 +01:00
Alexander Block
7372f6f10b Move RebuildSigShare from CBatchedSigShares to CSigSharesManager
Needed as CBatchedSigShares doesn't have the necessary info anymore
2019-02-27 17:33:40 +01:00
Alexander Block
55a6182b10 Introduce QSIGSESANN/CSigSesAnn P2P message 2019-02-27 17:33:40 +01:00
Alexander Block
80375a0b4f Change CSigSharesInv and CBatchedSigShares to be sessionId based 2019-02-27 17:33:40 +01:00
Alexander Block
2249413a7c
Merge pull request #2725 from codablock/pr_llmq_hashmaps
Add more caching to CRecoveredSigsDb and use salted hashing for externally provided keys
2019-02-27 17:32:50 +01:00
Alexander Block
9b4285b1c8 Use salted hashing for keys for unordered maps/sets in LLMQ code
We must watch out to not blindly use externally provided keys in unordered
sets/maps, as attackers might find ways to cause unbalanced hash buckets
causing performance degradation.
2019-02-27 14:41:20 +01:00
Alexander Block
b5462f5246 Implement std::unordered_map/set compatible hasher classes for salted hashes
Allows convenient salted hashing with unordered maps and sets. Useful when
there is a risk of unbalanced hash buckets slowing things down, e.g. when
externally supplied hashes are used as keys into a map.
2019-02-27 14:40:52 +01:00
Alexander Block
c52e8402c0 Remove now obsolete TODO comment above CRecoveredSigsDb 2019-02-27 14:40:52 +01:00
Alexander Block
e83e32b956 Add in-memory cache for CRecoveredSigsDb::HasRecoveredSigForHash 2019-02-27 14:40:52 +01:00
Alexander Block
677c0040cd Add in-memory cache to CQuorumBlockProcessor::HasMinedCommitment 2019-02-27 14:40:52 +01:00
Alexander Block
f305cf77b6 Multiple fixes and optimizations for LLMQs and ChainLocks (#2724)
* Indicate success when signing was unnecessary

* Fix typo in name of LLMQ_400_60

* Move RemoveAskFor call for CLSIGs into ProcessNewChainLock

In case we got INV items for the same CLSIG that we recreated through
HandleNewRecoveredSig, (re-)requesting of the CLSIG from other peers
becomes unnecessary.

* Move Cleanup() call in CChainLocksHandler::UpdatedBlockTip up

We bail out early in a few situations from this method, so that Cleanup()
might not be called while its at the bottom.

* Bail out from CChainLocksHandler::UpdatedBlockTip if we already got the CLSIG

* Call RemoveAskFor when QFCOMMITMENT was received

Otherwise we might end up re-requesting it for a very long time when the
commitment INV was received shortly before it got mined.

* Call RemoveSigSharesForSession when a recovered sig is received

Otherwise we end up with session data in node states lingering around until
a fake "timeout" occurs (can be seen in the logs).

* Better handling of false-positive conflicts in CSigningManager

The old code was emitting a lot of messages in logs as it treated sigs
for exactly the same session as a conflict. This commit fixes this by
looking at the signHash before logging.

Also handle a corner-case where a recovered sig might be deleted between
the HasRecoveredSigForId and GetRecoveredSigById call.

* Don't run into session timeout when sig shares come in slow

Instead of just tracking when the first share was received, we now also
track when the last (non-duplicate) share was received. Sessios will now
timeout 5 minutes after the first share arrives, or 1 minute after the last
one arrived.
2019-02-27 16:10:12 +03:00
Nathan Marley
fcd3b4fd49 Disallow new proposals using legacy serialization (#2722)
*  add flag to allow legacy proposal format

* add proposal validator ctor flag for legacy format

* add test for legacy proposal format disabled
2019-02-26 13:44:43 +03:00
UdjinM6
668b84b1e4 Fix stacktraces compilation issues (#2721)
* Drop linux/limits.h, we don't use it anyway

* Do not require backtrace lib when enable_stacktraces=no
2019-02-26 07:01:56 +01:00
UdjinM6
0fd1fb7d57
Don't build docker image when running Travis job on some another repo (#2718) 2019-02-21 21:44:47 +03:00
Alexander Block
48d92f116e Implement optional pretty printed stacktraces (#2420)
* Add libbacktrace to depends

This is currently only useful to extract symbols. It fails to gather
stacktraces when compiled with MinGW, so we can only use it to get symbol
information from a stack trace which we gathered outside of libbacktrace.

* Add -mbig-obj to CXXFLAGS for MinGW builds

* Implement stacktraces for C++ exceptions

This is a hack and should only be used for debugging. It works by wrapping
the C++ ABI __wrap___cxa_allocate_exception. The wrapper records a backtrace
and stores it in a global map. Later the stacktrace can be retrieved with
GetExceptionStacktraceStr.

This commit also adds handlers to pretty print uncaught exceptions and
signals.

* Use GetPrettyExceptionStr for all unhandled exceptions

* Use --enable-stacktraces in CI for linux32/linux64

* Register exception translators to pretty print exceptions in unit tests

* Catch and print python exceptions when stopping nodes

Otherwise the code at the bottom is never executed when nodes crash,
leading to no output of debug.log files on Travis.

* Remove now unneeded/unused TestCrash methods
2019-02-21 21:37:15 +03:00
UdjinM6
0b552be20b
Fix file permissions broken in 2682 (#2717) 2019-02-20 12:03:48 +03:00
Duke Leto
74bb23cacf Add link to bugcrowd in issue template (#2716) 2019-02-19 13:05:59 +03:00
UdjinM6
252ee89c34
Implement new algo for quorum connections (#2710)
Instead of trying to manually figure out params for different quorum/ring sizes, connect to nodes at indexes (i+2^k)%n where k: 0..floor(log2(n-1))-1, n: size of the quorum/ring
2019-02-19 13:05:39 +03:00
UdjinM6
a79b928532
Merge pull request #2682 from PastaPastaPasta/backports-0.15-pr6
Backports 0.15 pr6
2019-02-19 13:04:49 +03:00
Alexander Block
104c6e7767 Cleanup successful sessions before doing timeout check (#2712)
Otherwise we get some false-positive timeout messages in logs.
2019-02-18 14:07:57 +03:00
UdjinM6
26db020d17
Separate init/destroy and start/stop steps in LLMQ flow (#2709) 2019-02-17 14:39:43 +03:00
Alexander Block
9f58690322 Avoid using ordered maps in LLMQ signing code (#2708)
* Implement and use SigShareMap instead of ordered map with helper methods

The old implementation was relying on the maps being ordered, which allowed
us to grab all sig shares for the same signHash by doing range queries on
the map. This has the disadvantage of being unnecessarily slow when the
maps get larger. Using an unordered map would be the naive solution, but
then it's not possible to query by range anymore.

The solution now is to have a specialized map "SigShareMap" which is
indexed by "SigShareKey". It's internally just an unordered map, indexed by
the sign hash and another unordered map for the value, indexed by the
quorum member index.

* Only use unordered maps/sets in CSigSharesManager

These are faster when maps/sets get larger.

* Use unorderes sets/maps in CSigningManager
2019-02-17 14:38:56 +03:00
Pasta
bb90eb4bf0 backports-0.15-pr6 code review 2019-02-16 15:09:51 -06:00
Alexander Block
7a192e2e4c Optimize sleeping behavior in CSigSharesManager::WorkThreadMain (#2707)
* Don't sleep in WorkThreadMain when CPU intensive work was done

When the current iteration resulted in CPU intensive work, it's likely that
the next iteration will result in work as well. Do not sleep in that case,
as we're otherwise wasting (unused) CPU resources.

* No matter how fast we process sig shares, always force 100ms between sending

* Apply review suggestions
2019-02-16 19:59:48 +03:00
Alexander Block
feb4e0ac74
Merge pull request #2706 from codablock/pr_llmq_optimizations3
Implement caching in CRecoveredSigsDb
2019-02-16 15:51:24 +01:00
Alexander Block
dae1542a0e
Merge pull request #2705 from codablock/pr_llmq_optimizations2
Optimize LLMQs initialization and (de)serialization of BLS signatures
2019-02-16 15:50:23 +01:00
Alexander Block
01940616f0
Merge pull request #2704 from codablock/pr_llmq_optimizations1
Optimize LLMQs sending of sig shares
2019-02-16 15:49:19 +01:00
Alexander Block
d7bd0954f3 Use pipe() together with fcntl instead of pipe2()
pipe2 is not supported on MacOS
2019-02-15 16:30:42 +01:00
Alexander Block
742a258987 Implement caching in CRecoveredSigsDb
To avoid repeated calls into LevelDB
2019-02-15 15:52:51 +01:00
Alexander Block
500b9c89a7 Use CBLSLazySignature in CBatchedSigShares
This removes the burden on the message handler thread when many sig batches
arrive. The expensive part of deserialization is now performed in the sig
shares worker thread.

This also removes the need for the specialized deserialization of the sig
shares which tried to avoid the malleability check, as CBLSLazySignature does
not perform malleability checks at all.
2019-02-15 15:44:19 +01:00
Alexander Block
02b68885a0 Implement CBLSLazySignature for lazy serialization/deserialization
In some cases it takes too much time to perform full deserialization of
BLS signatures in the message handler thread. Better to just read the
buffer and do the actual deserialization when the signature is needed for
the first time (which is can be in another thread).
2019-02-15 15:44:02 +01:00
Alexander Block
6e8f50aa55 Faster default-initialization of BLS primitives by re-using the null-hash 2019-02-15 15:43:51 +01:00
Alexander Block
c03480d20f Disable optimistic sending when pushing sig share related messages
And instead let the network thread do the actual sending.
2019-02-15 15:20:15 +01:00
Alexander Block
acb87895f8 Implement WakeupSelect() to allow preliminary wakeup after message push
This adds the reading side of a pipe to the read-set when calling select().
Writing to the writing side of the pipe then causes select() to wake up
immediately. Otherwise it would wait for the timeout of 50ms, even if there
is data that could possibly be sent.

This is useful when many messages need are pushed with optimistic send being
disabled. After all messages have been pushed, WakeSelect() can then wakeup
the select() thread and force a re-check for pending data to send.

This is currently only implemented for POSIX compliant systems as we assume
that heavy-load daemons (like masternodes) are usually run on Linux.
2019-02-15 15:19:59 +01:00
Alexander Block
cf29320988 Allow to disable optimistic send in PushMessage()
Profiling has shown that optimistic send causes measurable slowdowns when
many messages are pushed, even if the sockets are non-blocking. Better to
allow disabling of optimistic sending in such cases and let the network
thread do the actual socket calls.
2019-02-15 15:19:36 +01:00
UdjinM6
bedfc262e2 Rework handling of CSigSharesManager worker thread (#2703) 2019-02-15 15:11:50 +01:00
UdjinM6
3e4286a584 Less cs_main locks in quorums (#2702)
* Drop cs_main from CQuorumManager::UpdatedBlockTip()

* CLLMQUtils::IsQuorumActive() shouldn't require cs_main to be held

* Revert comment deletion
2019-02-15 15:11:35 +01:00
Alexander Block
3bbc75fc48 Reintroduce spork15 so that it's relayed by 0.14 nodes (#2701) 2019-02-14 21:24:06 +03:00
Alexander Block
b71a3f48da Remove not used and not implemented methods from net.h (#2700) 2019-02-12 22:52:18 +03:00
Alexander Block
c0cb274659 Fix incorrect usage of begin() when genesis block is requested in "protx diff" (#2699)
* Fix incorrect usage of begin() when genesis block is requested in "protx diff"

.begin() on mapBlockIndex does NOT return the genesis block, but just the
block with lowest hash.

The fix is to use chainActive[0] to get the genesis block.

* Update src/evo/simplifiedmns.cpp

Co-Authored-By: codablock <ablock84@gmail.com>
2019-02-12 22:52:06 +03:00
UdjinM6
b239bb24a0
Do not process blocks in CDeterministicMNManager before dip3 activation (#2698)
* Do not process blocks in CDeterministicMNManager before dip3 activation

This should save us some cpu/disk on initial sync/reindex

* Write initial snapshot on dip3 activation
2019-02-12 22:51:50 +03:00
UdjinM6
86fc050495
Drop no longer used code and bump min protos (#2697)
* Drop registry deletion of the old key

* Drop no longer used CGovernanceObjectVoteFile::RemoveOldVotes()

* Drop temporary disconnect code and bump min protos to 70213

* drop comment

* fix
2019-02-12 22:51:21 +03:00
UdjinM6
fef8e5d45f
A small overhaul of the way MN list/stats UI and data are tied together (#2696)
* Do not access wallet directly from masternodelist ui, use wallet model instead

* Don't access deterministicMNManager from UI directly, use client model instead

* Send just a general signal to UI elements when mn list has changed and let them handle it in their specific ways

* Drop mn list update timers and use signals instead

* some cleanup

* Move initial UI update to init.cpp

* Refactor getMasternodeList()

* Rename setMasternodeCount to updateMasternodeCount

* Drop legacy code in comments

* Drop NotifyMasternodeListChanged from uiInterface and use NotifyBlockTip instead
2019-02-12 22:51:03 +03:00
PastaPastaPasta
90bb3ca2f6 Backport #14701: build: Add CLIENT_VERSION_BUILD to CFBundleGetInfoString (#2687)
8e209340c85fc2493d7d1d7affe7e316bb613cbd build: Add CLIENT_VERSION_BUILD to CFBundleGetInfoString (fanquake)

Pull request description:

  As mentioned in #14697, if you download the `0.17.0.1` dmg, and inspect the `.app` bundle, the version in the GetInfo string reads `0.17.0`, which is confusing given you're expecting `0.17.0.1`:
  <img width="391" alt="0 17 0 1" src="https://user-images.githubusercontent.com/863730/48300032-fbb54b00-e510-11e8-9bcd-77e1fffffc63.png">

  This PR adds `CLIENT_VERSION_BUILD` to the string, so that the full version number is displayed, i.e:
  <img width="327" alt="this pr" src="https://user-images.githubusercontent.com/863730/48300015-7893f500-e510-11e8-98b9-80424719a082.png">

Tree-SHA512: f553253d03283639cc4dda00c8004b5c63ae2b489762e5e8c666166e71b14e672792c1df678f87484d51d153b5781c5ec1b145774096600f504833024ae8baea
2019-02-12 22:50:07 +03:00