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Wladimir J. van der Laan ca8218301b
Merge #20884: script: Improve robustness of bitcoind.service on startup 
9d02654677 doc: Fix systemd spelling and link to doc/init.md (Hennadii Stepanov)
601778c310 script: Add Documentation key to bitcoind.service (Hennadii Stepanov)
d9392b724c script: Improve robustness of bitcoind.service on startup (Hennadii Stepanov)

Pull request description:

  If network interfaces are not properly up the following happens:
  ```
  ...
  2021-01-08T10:17:11Z scheduler thread start
  2021-01-08T10:17:11Z libevent: getaddrinfo: address family for nodename not supported
  2021-01-08T10:17:11Z Binding RPC on address 127.0.0.1 port 8332 failed.
  2021-01-08T10:17:11Z HTTP: creating work queue of depth 16
  2021-01-08T10:17:11Z Using random cookie authentication.
  2021-01-08T10:17:11Z Generated RPC authentication cookie /var/lib/bitcoind/.cookie
  2021-01-08T10:17:11Z HTTP: starting 2 worker threads
  2021-01-08T10:17:11Z init message: Loading banlist...
  2021-01-08T10:17:11Z SetNetworkActive: true
  2021-01-08T10:17:11Z Error: Cannot resolve -externalip address: <EDITED>
  2021-01-08T10:17:11Z Shutdown: In progress...
  2021-01-08T10:17:11Z scheduler thread exit
  2021-01-08T10:17:11Z Shutdown: done
  ```

  This PR improves robustness on startup in such cases in documented way:
  https://www.freedesktop.org/wiki/Software/systemd/NetworkTarget/

  Also minor doc improvements are added.

ACKs for top commit:
  Sjors:
    ACK 9d02654
  practicalswift:
    ACK 9d02654677: patch looks correct
  darosior:
    ACK 9d02654677 -- been using the first patch too

Tree-SHA512: 38294f5682c09e6ea9008de7d7459098c920cf1b98ad8ef8a5d2ca01f2f781c0fec5591dc40ef36eeb19d94991b0c7fb7cb38c4e716bc7219875c9bcd0a55e1b
2021-01-18 20:02:00 +01:00
.github doc: Remove label from good first issue template 2020-08-24 09:31:24 +02:00
.tx tx: Update transifex slug for 0.21 2020-10-01 22:19:11 +02:00
build-aux/m4 build: improve macro for testing -latomic requirement 2021-01-15 10:54:07 +08:00
build_msvc scripted-diff: Bump copyright headers 2020-12-31 09:45:41 +01:00
ci ci: Add libnatpmp-dev package to some builds 2021-01-07 18:07:10 +02:00
contrib Merge #20884: script: Improve robustness of bitcoind.service on startup 2021-01-18 20:02:00 +01:00
depends depends: Add comment about cache invalidation 2021-01-07 14:24:06 -05:00
doc Fix 0.21.0 release note to specify correct option BIP 157 support 2021-01-15 14:05:59 -06:00
share genbuild: Specify rev-parse length 2021-01-08 11:40:01 -05:00
src Merge #20938: build: fix linking against -latomic when building for riscv 2021-01-18 18:33:24 +01:00
test test: Fix get_previous_releases.py for aarch64 2021-01-18 09:06:24 +01:00
.appveyor.yml Removed redundant git pull from appveyor config. 2020-12-03 09:23:22 +00:00
.cirrus.yml ci: Add libnatpmp-dev package to some builds 2021-01-07 18:07:10 +02:00
.fuzzbuzz.yml fuzz: remove no-longer-necessary packages from fuzzbuzz config 2020-12-28 14:37:48 +08:00
.gitattributes Separate protocol versioning from clientversion 2014-10-29 00:24:40 -04:00
.gitignore Merge #19937: signet mining utility 2021-01-12 12:53:45 +01:00
.python-version Bump minimum python version to 3.6 2020-11-09 17:53:47 +10:00
.style.yapf test: .style.yapf: Set column_limit=160 2019-03-04 18:28:13 -05:00
autogen.sh scripted-diff: Bump copyright of files changed in 2019 2019-12-30 10:42:20 +13:00
configure.ac Merge #19937: signet mining utility 2021-01-12 12:53:45 +01:00
CONTRIBUTING.md Replace hidden service with onion service 2020-08-07 14:55:02 +02:00
COPYING doc: Update license year range to 2021 2020-12-30 16:24:47 +01:00
INSTALL.md Update INSTALL landing redirection notice for build instructions. 2016-10-06 12:27:23 +13:00
libbitcoinconsensus.pc.in build: remove libcrypto as internal dependency in libbitcoinconsensus.pc 2019-11-19 15:03:44 +01:00
Makefile.am Merge #19937: signet mining utility 2021-01-12 12:53:45 +01:00
README.md doc: Drop mentions of Travis CI as it is no longer used 2020-12-18 01:15:53 +02:00
REVIEWERS doc: rename CODEOWNERS to REVIEWERS 2020-11-30 13:53:50 -05:00
SECURITY.md doc: Remove explicit mention of version from SECURITY.md 2019-06-14 06:39:17 -04:00

README.md

Bitcoin Core integration/staging tree

https://bitcoincore.org

What is Bitcoin?

Bitcoin is an experimental digital currency that enables instant payments to anyone, anywhere in the world. Bitcoin uses peer-to-peer technology to operate with no central authority: managing transactions and issuing money are carried out collectively by the network. Bitcoin Core is the name of open source software which enables the use of this currency.

For more information, as well as an immediately usable, binary version of the Bitcoin Core software, see https://bitcoincore.org/en/download/, or read the original whitepaper.

License

Bitcoin Core is released under the terms of the MIT license. See COPYING for more information or see https://opensource.org/licenses/MIT.

Development Process

The master branch is regularly built (see doc/build-*.md for instructions) and tested, but it is not guaranteed to be completely stable. Tags are created regularly from release branches to indicate new official, stable release versions of Bitcoin Core.

The https://github.com/bitcoin-core/gui repository is used exclusively for the development of the GUI. Its master branch is identical in all monotree repositories. Release branches and tags do not exist, so please do not fork that repository unless it is for development reasons.

The contribution workflow is described in CONTRIBUTING.md and useful hints for developers can be found in doc/developer-notes.md.

Testing

Testing and code review is the bottleneck for development; we get more pull requests than we can review and test on short notice. Please be patient and help out by testing other people's pull requests, and remember this is a security-critical project where any mistake might cost people lots of money.

Automated Testing

Developers are strongly encouraged to write unit tests for new code, and to submit new unit tests for old code. Unit tests can be compiled and run (assuming they weren't disabled in configure) with: make check. Further details on running and extending unit tests can be found in /src/test/README.md.

There are also regression and integration tests, written in Python, that are run automatically on the build server. These tests can be run (if the test dependencies are installed) with: test/functional/test_runner.py

The CI (Continuous Integration) systems make sure that every pull request is built for Windows, Linux, and macOS, and that unit/sanity tests are run automatically.

Manual Quality Assurance (QA) Testing

Changes should be tested by somebody other than the developer who wrote the code. This is especially important for large or high-risk changes. It is useful to add a test plan to the pull request description if testing the changes is not straightforward.

Translations

Changes to translations as well as new translations can be submitted to Bitcoin Core's Transifex page.

Translations are periodically pulled from Transifex and merged into the git repository. See the translation process for details on how this works.

Important: We do not accept translation changes as GitHub pull requests because the next pull from Transifex would automatically overwrite them again.

Translators should also subscribe to the mailing list.