[ClusterLabs Developers] kronosnet v0.9 (aka 1.0 Release Candidate 1) released

Fabio M. Di Nitto fabbione at fabbione.net
Sat Dec 16 00:08:07 EST 2017


We are pleased to announce the second public release candidate of
kronosnet v1.0 - which we are calling v0.9

kronosnet (or knet for short) is the new underlying network protocol for
Linux HA components (corosync), that features ability to use multiple
links between nodes, active/active and active/passive link failover
policies, automatic link recovery, FIPS compliant encryption (nss and/or
openssl), automatic PMTUd and in general better performances compared to
the old network protocol.

The source tarballs can be downloaded here:


Upstream resources and contacts:

https://trello.com/kronosnet (TODO list and activities tracking)
https://goo.gl/9ZvkLS (google shared drive with presentations and diagrams)
IRC: #kronosnet on Freenode

Known issues in this release:

* Knet will fail to work on Fedora 26 arm when built with clang. This is
  a known issue with clang compiler that is fixed in more recent
  versions of clang.

* Knet will fail to build with clang on rhel7 + epel version of clang.
  This is a known issue with clang compiler that is fixed in more recent
  versions of clang.

* Applications performing configuration changes might experience a long
  waiting time when calling into the knet API. This is a known
  interaction issue between the PMTUd thread inside knet and external
  API locking.

* Running the knet test suite with valgrind (make check-memcheck) will
  fail with Debian Experimental glibc due to a known bug in valgrind.

* Running the knet test suite with valgrind on FreeBSD is no longer
  supported. The valgrind version on FreeBSD is too old and generates
  too many false positives. Also, please refer to build-aux/check.mk on
  how to use valgrind in combination with knet. Some platforms requires
  extra options to work properly.

The knet developer team

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