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Re: Migrated to corosync 3.x knet become default protocol
by Fabio M. Di Nitto 28 Mar '23

28 Mar '23

Hi Sathish, apology for the super late reply. I have been on sick leave for a long time. comments inline On 30/01/2023 08.38, S Sathish S wrote: > Hi Team, > > In our application we are currently using UDPU as transport protocol > with single ring, while migrated to corosync 3.x knet become default > protocol. > > We need to understand any maintenance overhead that any required > certificate/key management would bring in for knet transport protocol > (or) it > > will use existing authorization key /etc/corosync/authkey file for > secure communication between nodes using knet transport protocol. there is no extra maintenance. In fact, knet should make it easier. corosync will continue to use the same authkey and load it into knet. knet and corosync, in recent versions also allow runtime change of the authkey without shutting down the cluster and restart. It should be possible to update authkey and issue a config reload for corosync. This feature requires all nodes of the cluster to be online. > > https://access.redhat.com/solutions/5963941 > <https://access.redhat.com/solutions/5963941> > > https://access.redhat.com/solutions/1182463 > <https://access.redhat.com/solutions/1182463> > > We shouldn't end up in a case where Pacemaker stops working due to some > certificate/key expiry? No, that won´t be the case as knet and corosync use a different encryption method than pacemaker. Cheers Fabio > > Thanks and Regards, > > S Sathish S > > > _______________________________________________ > Users mailing list -- users(a)lists.kronosnet.org > To unsubscribe send an email to users-leave(a)lists.kronosnet.org

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kronosnet v1.22 released
by Fabio M. Di Nitto 30 Aug '21

30 Aug '21

All, We are pleased to announce the general availability of kronosnet v1.22. *** This release includes several MAJOR bug fixes and we strongly encourage everyone to update as soon as possible *** kronosnet (or knet for short) is the new underlying network protocol for Linux HA components (corosync), that features the 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 performance compared to the old network protocol. Highlights in this release: * Fix incorrect defrag buffer index that can cause knet to stop processing all traffic under some extreme network conditions (random latency). * Increase defrag buffer size to better deal with extreme network conditions as above. * Do not leak resources if link configuration fails * Major rework of ACL code to match API vs implementation. * Detect incorrect link configuration when mixing static and dynamic links * Fix knet_send_sync API to require a destination filter * Fix knet sockaddr_storage size across the board to deal with newly introduced checks on FreeBSD * Minor docs updates * Major internal test suite fixes Known issues in this release: * Preparation for this release spotted a long standing issue with SCTP transport used in combination with dynamic links. This specific issue has been in the code since SCTP has been introduced. It will be addressed in one of the upcoming releases. The problem does NOT affect the corosync / High Availability use case. The source tarballs can be downloaded here: https://www.kronosnet.org/releases/ Upstream resources and contacts: https://kronosnet.org/ https://github.com/kronosnet/kronosnet/ https://ci.kronosnet.org/ https://trello.com/kronosnet (TODO list and activities tracking) https://goo.gl/9ZvkLS (google shared drive with presentations and diagrams) IRC: #kronosnet on Freenode https://lists.kronosnet.org/mailman/listinfo/users https://lists.kronosnet.org/mailman/listinfo/devel https://lists.kronosnet.org/mailman/listinfo/commits Cheers, The knet developer team

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kronosnet v1.21 released
by Fabio M. Di Nitto 28 Apr '21

28 Apr '21

All, We are pleased to announce the general availability of kronosnet v1.21 kronosnet (or knet for short) is the new underlying network protocol for Linux HA components (corosync), that features the 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 performance compared to the old network protocol. Highlights in this release: * Update to openssl 3.0alpha13 * Drop -rpath usage from libknet * Various libnozzle fixes * API: validate handles for public api calls to avoid crashes * Update FreeBSD documentation section * Test suite improvements to speed up testing Known issues in this release: * None The source tarballs can be downloaded here: https://www.kronosnet.org/releases/ Upstream resources and contacts: https://kronosnet.org/ https://github.com/kronosnet/kronosnet/ https://ci.kronosnet.org/ https://trello.com/kronosnet (TODO list and activities tracking) https://goo.gl/9ZvkLS (google shared drive with presentations and diagrams) IRC: #kronosnet on Freenode https://lists.kronosnet.org/mailman/listinfo/users https://lists.kronosnet.org/mailman/listinfo/devel https://lists.kronosnet.org/mailman/listinfo/commits Cheers, The knet developer team

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Old pcs-0.9.167/0.9.168/0.9.169 package with newer corosync-3.1 and pacemaker-2.1 on RHEL 7.7
by RUGINA Szabolcs-Gavril 08 Feb '21

08 Feb '21

Hi folks, Thank you for your time and will to help. We are in the middle of a high pressure because some problems with RHEL HA Cluster/Corosync+Pacemaker/DRBD and we arrived at the point that we upgraded corosync 2.4.3 to 3.1 and pacemaker 1.1.20 to 2.1 but then our setup gives errors with the command "pcs property set no-quorum-policy=stop". The error is: No such file or directory', 'command': '/usr/libexec/pacemaker/pengine metadata' Indeed /usr/libexec/pacemaker/pengine does not exists, I assume it is OK, because in the new pacemaker 3.1 the internal structure was changed.. In the midtime we found out that we could archive the same setting using crm_attribute --name no-quorum-policy -update stop. My questions are: * Is there a reason that pcs has no build for RHEL 7? * Is the crm_attribute the right choice for setting cluster properties and will cover all usecases? * Thank You! BR, Szabolcs

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kronosnet v1.20 released
by Fabio M. Di Nitto 19 Oct '20

19 Oct '20

All, We are pleased to announce the general availability of kronosnet v1.20 kronosnet (or knet for short) is the new underlying network protocol for Linux HA components (corosync), that features the 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 performance compared to the old network protocol. Highlights in this release: * Fix per link stats collection to be more consistent on RX/TX * Fix coverity scan build error * Remove some dead code * Minor improvements to the test suite Known issues in this release: * None The source tarballs can be downloaded here: https://www.kronosnet.org/releases/ Upstream resources and contacts: https://kronosnet.org/ https://github.com/kronosnet/kronosnet/ https://ci.kronosnet.org/ https://trello.com/kronosnet (TODO list and activities tracking) https://goo.gl/9ZvkLS (google shared drive with presentations and diagrams) IRC: #kronosnet on Freenode https://lists.kronosnet.org/mailman/listinfo/users https://lists.kronosnet.org/mailman/listinfo/devel https://lists.kronosnet.org/mailman/listinfo/commits Cheers, The knet developer team

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kronosnet v1.x series and future support / development
by Fabio M. Di Nitto 17 Aug '20

17 Aug '20

All, kronosnet (or knet for short) is the new underlying network protocol for Linux HA components (corosync), that features the 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 performance compared to the old network protocol. After several weeks / months without any major bug reported, starting with v1.19 release, we are going to lock down the 1.x series to only 2 kind of changes: * Bug fixes * Onwire compatibility changes to allow rolling upgrades with the v2.x series (if necessary at all) Upstream will continue to support v1.x for at least 12 months after v2.x will be released (date unknown, no really, we didn't even start the development). If you have any amazing ideas on what v2.x should include, please file issues here: https://github.com/kronosnet/kronosnet/issues Or check the current TODO list here: https://trello.com/kronosnet Cheers, The knet developer team

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kronosnet v1.19 released
by Fabio M. Di Nitto 17 Aug '20

17 Aug '20

All, We are pleased to announce the general availability of kronosnet v1.19 kronosnet (or knet for short) is the new underlying network protocol for Linux HA components (corosync), that features the 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 performance compared to the old network protocol. Highlights in this release: * Add native support for openssl 3.0 (drop API COMPAT macros). * Code cleanup of public APIs. Lots of lines of code moved around, no functional changes. * Removed kronosnetd unsupported code completely * Removed unused poc-code from the source tree * Make sure to initialize epoll events structures Known issues in this release: * None The source tarballs can be downloaded here: https://www.kronosnet.org/releases/ Upstream resources and contacts: https://kronosnet.org/ https://github.com/kronosnet/kronosnet/ https://ci.kronosnet.org/ https://trello.com/kronosnet (TODO list and activities tracking) https://goo.gl/9ZvkLS (google shared drive with presentations and diagrams) IRC: #kronosnet on Freenode https://lists.kronosnet.org/mailman/listinfo/users https://lists.kronosnet.org/mailman/listinfo/devel https://lists.kronosnet.org/mailman/listinfo/commits Cheers, The knet developer team

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kronosnet v1.18 released
by Fabio M. Di Nitto 14 Jul '20

14 Jul '20

All, We are pleased to announce the general availability of kronosnet v1.18 kronosnet (or knet for short) is the new underlying network protocol for Linux HA components (corosync), that features the 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 performance compared to the old network protocol. Highlights in this release: * Fix libknet soname * Fix doxyxml build Known issues in this release: * None The source tarballs can be downloaded here: https://www.kronosnet.org/releases/ Upstream resources and contacts: https://kronosnet.org/ https://github.com/kronosnet/kronosnet/ https://ci.kronosnet.org/ https://trello.com/kronosnet (TODO list and activities tracking) https://goo.gl/9ZvkLS (google shared drive with presentations and diagrams) IRC: #kronosnet on Freenode https://lists.kronosnet.org/mailman/listinfo/users https://lists.kronosnet.org/mailman/listinfo/devel https://lists.kronosnet.org/mailman/listinfo/commits Cheers, The knet developer team

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kronosnet v1.17 released
by Fabio M. Di Nitto 14 Jul '20

14 Jul '20

All, We are pleased to announce the general availability of kronosnet v1.17 kronosnet (or knet for short) is the new underlying network protocol for Linux HA components (corosync), that features the 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 performance compared to the old network protocol. Highlights in this release: * Add ability to change crypto configuration at runtime without restarting knet and without packet drop * Add compatibility support for openssl 3.0 * Add functional testing framework and new test cases * Minor build fixes NOTE TO PACKAGERS: please be aware that the functional test suite adds a considerable amount of time to run via make check or make check-memcheck. This is expected, and it will increase further more as more tests will be added. Known issues in this release: * None The source tarballs can be downloaded here: https://www.kronosnet.org/releases/ Upstream resources and contacts: https://kronosnet.org/ https://github.com/kronosnet/kronosnet/ https://ci.kronosnet.org/ https://trello.com/kronosnet (TODO list and activities tracking) https://goo.gl/9ZvkLS (google shared drive with presentations and diagrams) IRC: #kronosnet on Freenode https://lists.kronosnet.org/mailman/listinfo/users https://lists.kronosnet.org/mailman/listinfo/devel https://lists.kronosnet.org/mailman/listinfo/commits Cheers, The knet developer team

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kronosnet v1.16 released
by Fabio M. Di Nitto 23 Apr '20

23 Apr '20

All, We are pleased to announce the general availability of kronosnet v1.16 kronosnet (or knet for short) is the new underlying network protocol for Linux HA components (corosync), that features the 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 performance compared to the old network protocol. Highlights in this release: * Fix major issue with SCTP when nodes have duplicated IP addresses, for example virtual interfaces to connect to docker or libvirt * Fix build with newest gcc * Minor bug fixes Known issues in this release: * None The source tarballs can be downloaded here: https://www.kronosnet.org/releases/ Upstream resources and contacts: https://kronosnet.org/ https://github.com/kronosnet/kronosnet/ https://ci.kronosnet.org/ https://trello.com/kronosnet (TODO list and activities tracking) https://goo.gl/9ZvkLS (google shared drive with presentations and diagrams) IRC: #kronosnet on Freenode https://lists.kronosnet.org/mailman/listinfo/users https://lists.kronosnet.org/mailman/listinfo/devel https://lists.kronosnet.org/mailman/listinfo/commits Cheers, The knet developer team

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