Markus Hilger
78048d01a1
A member of a collective that cannot reach quorum stalls in the startup loop until quorum returns, and there was nothing in that loop that noticed a shutdown. That was survivable while SIGTERM raised SystemExit out of the signal handler, since that escaped the loop from wherever it happened to be. Having the event loop deliver the signal instead leaves the stop event set with nobody reading it until quorum is reached, so stopping the service waits out the systemd timeout and ends in a kill. Check the event in the loop condition, and wait on it rather than sleeping through it, so the answer comes in milliseconds rather than whenever quorum returns. A service stopped at this point has served nothing yet, so it goes straight to the same configuration flush the normal exit does.
Confluent
Confluent is a software package to handle essential bootstrap and operation of scale-out server configurations. It supports stateful and stateless deployments for various operating systems.
Check this page for a more detailed list of features.
Confluent is the modern successor of xCAT. If you're coming from xCAT, check out this comparison.
Documentation
Confluent documentation is hosted on: https://xcat2.github.io/confluent-docs/
Download
Get the latest version from: https://xcat2.github.io/confluent-docs/downloads/
Check release notes on: https://xcat2.github.io/confluent-docs/release_notes/
Open Source License
Confluent is made available under the Apache 2.0 license: https://opensource.org/license/apache-2-0
Developers
Want to help? Submit a Pull Request.
Versioning and releases
The top-level VERSION file names the release the current branch is working toward. Build scripts
call ./mkversion, which turns it into the version stamped on packages: the tag itself on a release
tag (4.0.1), otherwise a development version (4.0.1.dev5+gdeadbee, or 4.0.1~dev5+gdeadbee for
the packages that have no setup.py).
mkversion also derives a version from the newest tag reachable from HEAD and uses whichever is
higher, so forgetting to bump VERSION after tagging the current branch cannot walk the version
backwards. Staying ahead of tags on other branches is what VERSION itself is for: patch releases
are tagged on release branches, which master never sees.
Cutting a new series:
- Land the release commit on master and tag
X.Y.0there. - Create branch
X.Yfrom that tag; it inheritsVERSION=X.Y.0. - Only then bump
VERSIONon master. Doing it before step 2 leaves the release branch on the wrong series.
Patch releases land on branch X.Y and are tagged X.Y.Z there; no VERSION edit is needed.