It turns out that some miners have been staying with old versions of
Bitcoin Core because their software behaves poorly with persistent
connections and the Bitcoin Core thread and connection limits.
What happens is that underlying HTTP libraries leave connections open
invisibly to their users and then the user runs into the default four
thread limit. This looks like Bitcoin Core is unresponsive to RPC.
There are many things that should be improved in Bitcoin Core's behavior
here, e.g. supporting more concurrent connections, not tying up threads
for idle connections, disconnecting kept-alive connections when limits
are reached, etc. All are fairly big, risky changes.
Disabling keep-alive is a simple workaround. It's often not easy to turn
off the keep-alive support in the client where it may be buried in some
platform library.
If you are one of the few who really needs persistent connections you
probably know that you want them and can find a switch; while if you
don't and the misbehavior is hitting you it is hard to discover the
source of your problems is keepalive related. Given that it is best
to default to off until they're handled better.
Github-Merge: #5655
Rebased-From: 16a5c18cea56c1093dae1dd8ee72af
34318d7 RPC-test based on invalidateblock for mempool coinbase spends (Gavin Andresen)
7fd6219 Make CTxMemPool::remove more effecient by avoiding recursion (Matt Corallo)
b7b4318 Make CTxMemPool::check more thourough by using CheckInputs (Matt Corallo)
723d12c Remove txn which are invalidated by coinbase maturity during reorg (Matt Corallo)
868d041 Remove coinbase-dependant transactions during reorg. (Matt Corallo)
- rest block request returns full unfolded tx details
- /rest/block/notxdetails/<HASH> returns block where transactions are only represented by its hash
Immature coinbase spends are allowed in the memory pool if they can be mined in the next block.
They are not allowed in the memory pool if they cannot be mined in the next block.
This regression test tests those edge cases.
Ported txnmall.sh to Python, and updated to match
recent transaction malleability changes.
I also modified it so it tests both double-spending
confirmed and unconfirmed (only-in-mempool) transactions.
Renamed to txn_doublespend, since that is really what is
being tested. And told the pull-tester to run both
variations on this test.
3c30f27 travis: disable rpc tests for windows until they're not so flaky (Cory Fields)
daf03e7 RPC tests: create initial chain with specific timestamps (Gavin Andresen)
a8b2ce5 regression test only setmocktime RPC call (Gavin Andresen)
There's a brief race here, the process might've already exited and cleaned up
after itself. If that's the case, reading from the pidfile will harmlessly
fail. Keep those quiet.
This adds a -regetest-only undocumented (for regression testing only)
command-line option -blockversion=N to set block.nVersion.
Adds to the "has the rest of the network upgraded to a
block.nVersion we don't understand" code so it calls
-alertnotify when 51 of the last 100 blocks are up-version.
But it only alerts once, not with every subsequent new, upversion
block.
And adds a forknotify.py regression test to make sure it works.
Tested using forknotify.py:
Before adding CAlert::Notify, get:
Assertion failed: -alertnotify did not warn of up-version blocks
Before adding code to only alert once:
Assertion failed: -alertnotify excessive warning of up-version blocks
After final code in this pull:
Tests successful
Port over https://github.com/chronokings/huntercoin/pull/19 from
Huntercoin: This implements a new RPC command "getchaintips" that can be
used to find all currently active chain heads. This is similar to the
-printblocktree startup option, but it can be used without restarting
just via the RPC interface on a running daemon.
The regtest framework is local, so often there is no need to
discover our external IP. Setting -discover=0 in util.py works
around shutdown hang caused by GetExternalIP waiting in recv().
An user on IRC reported an issue where `getrawchangeaddress`
keeps returning a single address when the keypool is exhausted.
In my opinion this is strange behaviour.
- Change CReserveKey to fail when running out of keys in the keypool.
- Make `getrawchangeaddress` return RPC_WALLET_KEYPOOL_RAN_OUT when
unable to create an address.
- Add a Python RPC test for checking the keypool behaviour in combination
with encrypted wallets.
