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[kronosnet/kronosnet] 18fe60: [PTMUd] if any threads receives a EMSGSIZE outside...

by GitHub

Branch: refs/heads/new-pmtud Home: https://github.com/kronosnet/kronosnet Commit: 18fe60ab186a708827e7488aabe963363e10f37e https://github.com/kronosnet/kronosnet/commit/18fe60ab186a708827e7488aabe96… Author: Fabio M. Di Nitto <fdinitto(a)redhat.com> Date: 2017-12-30 (Sat, 30 Dec 2017) Changed paths: M libknet/internals.h M libknet/tests/knet_bench.c M libknet/threads_pmtud.c M libknet/transport_udp.c Log Message: ----------- [PTMUd] if any threads receives a EMSGSIZE outside of a PMTUD run, force PTMUd to run Scenario: node X has MTU Y on the interface and application is sending packets with size >= Y. The interface MTU is suddenly reduced to < Y Before this change, the kernel would be dropping packets till the next PMTUd run. After this change, the PMTUd will be informed that it has to rerun (overriding the pmtud_interval), reducing the packet drop to a minimum. How to test: force knet_bench to send 1500 size packets with ping_data (requires code change) and start it. reduce MTU on the interface from 1500 to 1300 (for example) Notice an immediate trigger of PMTUd run in debug mode Note: going up, from 1300 to 1500 will wait for the next PMTUd re-run as there is no immediate way to detect this change unless we start listening to kernel netlink sockets with libnl3 (investigation in progress but not critical enough atm). Signed-off-by: Fabio M. Di Nitto <fdinitto(a)redhat.com>

6 years, 10 months

[kronosnet/kronosnet] 937bda: [PMTUd] rename pmtud_running to pmtud_waiting

by GitHub

Branch: refs/heads/new-pmtud Home: https://github.com/kronosnet/kronosnet Commit: 937bda599da77192ab9df3da4758770a2250bd89 https://github.com/kronosnet/kronosnet/commit/937bda599da77192ab9df3da47587… Author: Fabio M. Di Nitto <fdinitto(a)redhat.com> Date: 2017-12-30 (Sat, 30 Dec 2017) Changed paths: M libknet/internals.h M libknet/threads_common.c M libknet/threads_pmtud.c Log Message: ----------- [PMTUd] rename pmtud_running to pmtud_waiting Signed-off-by: Fabio M. Di Nitto <fdinitto(a)redhat.com>

6 years, 10 months

[kronosnet/kronosnet] 0fcec1: [PTMUd] by using a safe PMTU to init a link, we ca...

by GitHub

Branch: refs/heads/new-pmtud Home: https://github.com/kronosnet/kronosnet Commit: 0fcec1f7054e900a47e2f61954849691de8bc425 https://github.com/kronosnet/kronosnet/commit/0fcec1f7054e900a47e2f61954849… Author: Fabio M. Di Nitto <fdinitto(a)redhat.com> Date: 2017-12-29 (Fri, 29 Dec 2017) Changed paths: M libknet/links.c Log Message: ----------- [PTMUd] by using a safe PMTU to init a link, we can shave down corosync membership creation by 25% tested on a 9 node cluster with 2 links each node, going down from 4 seconds to 3 seconds Signed-off-by: Fabio M. Di Nitto <fdinitto(a)redhat.com>

6 years, 10 months

[kronosnet/kronosnet] 6a6dfb: [PMTUd] Use kernel MTU information to determine ne...

by GitHub

Branch: refs/heads/new-pmtud Home: https://github.com/kronosnet/kronosnet Commit: 6a6dfb6db83ef53b88c7717c4318cfb8993deb15 https://github.com/kronosnet/kronosnet/commit/6a6dfb6db83ef53b88c7717c4318c… Author: Fabio M. Di Nitto <fdinitto(a)redhat.com> Date: 2017-12-29 (Fri, 29 Dec 2017) Changed paths: M libknet/handle.c M libknet/internals.h M libknet/threads_pmtud.c M libknet/transport_udp.c Log Message: ----------- [PMTUd] Use kernel MTU information to determine next packet size during discovery Using this information we can, for good links (*), determine and verify the link MTU with 2 packets. * good links means: node X has MTU Y configured on a given interface. Any network object between node X and destination is capable of handling MTU >= Y. In no case the kernel will allow us to send packets > Y. Signed-off-by: Fabio M. Di Nitto <fdinitto(a)redhat.com>

6 years, 10 months

[kronosnet/kronosnet] b7bd2a: [stats] report correct MTU for loopback links

by GitHub

Branch: refs/heads/new-pmtud Home: https://github.com/kronosnet/kronosnet Commit: b7bd2a2ae74116cd0a03fe50215ddf7b8410aaff https://github.com/kronosnet/kronosnet/commit/b7bd2a2ae74116cd0a03fe50215dd… Author: Fabio M. Di Nitto <fdinitto(a)redhat.com> Date: 2017-12-27 (Wed, 27 Dec 2017) Changed paths: M libknet/links.c Log Message: ----------- [stats] report correct MTU for loopback links Signed-off-by: Fabio M. Di Nitto <fdinitto(a)redhat.com>

6 years, 10 months

[kronosnet/kronosnet]

by GitHub

Branch: refs/heads/new-pmtud Home: https://github.com/kronosnet/kronosnet

6 years, 10 months

knet-build-all-nonvoting - Build # 216 - Still Failing!

by jenkins＠kronosnet.org

knet-build-all-nonvoting - Build # 216 - Still Failing: Check console output at https://ci.kronosnet.org/job/knet-build-all-nonvoting/216/ to view the results.

6 years, 10 months

[kronosnet/knet-ansible-ci] 2542c1: Change -e to use subnets vs interfaces

by GitHub

Branch: refs/heads/master Home: https://github.com/kronosnet/knet-ansible-ci Commit: 2542c131658f52ae22154cd0a2b3a7241a225142 https://github.com/kronosnet/knet-ansible-ci/commit/2542c131658f52ae22154cd… Author: Fabio M. Di Nitto <fdinitto(a)redhat.com> Date: 2017-12-25 (Mon, 25 Dec 2017) Changed paths: M group_vars/all M roles/corosync-tests/templates/corosync.conf.j2 M roles/kronosnet-tests/templates/knet_bench_wrapper.j2 M run-tests Log Message: ----------- Change -e to use subnets vs interfaces example: run-tests -e 172.16.0.0/16,172.17.0.0/16,172.18.0.0/16,172.19.0.0/16,3ffe::1/64 it can contain a mix of ipv4 and ipv6 networks to use for testing. TODO: disable ipv4 or ipv6 tests based on provided subnets. Signed-off-by: Fabio M. Di Nitto <fdinitto(a)redhat.com>

6 years, 10 months

[kronosnet/kronosnet] a34107: Drop unnecessary lock

by GitHub

Branch: refs/heads/scale Home: https://github.com/kronosnet/kronosnet Commit: a34107125d5e41976481e3dfe60cc1a1b728956f https://github.com/kronosnet/kronosnet/commit/a34107125d5e41976481e3dfe60cc… Author: Fabio M. Di Nitto <fdinitto(a)redhat.com> Date: 2017-12-23 (Sat, 23 Dec 2017) Changed paths: M libknet/threads_pmtud.c Log Message: ----------- Drop unnecessary lock Signed-off-by: Fabio M. Di Nitto <fdinitto(a)redhat.com>

6 years, 11 months

[kronosnet/kronosnet] 380fd3: Fix build and sleep better

by GitHub

Branch: refs/heads/scale Home: https://github.com/kronosnet/kronosnet Commit: 380fd3f51e4b03580e7516d7b567af67c6fce849 https://github.com/kronosnet/kronosnet/commit/380fd3f51e4b03580e7516d7b567a… Author: Fabio M. Di Nitto <fdinitto(a)redhat.com> Date: 2017-12-23 (Sat, 23 Dec 2017) Changed paths: M libknet/threads_pmtud.c Log Message: ----------- Fix build and sleep better Signed-off-by: Fabio M. Di Nitto <fdinitto(a)redhat.com>

6 years, 11 months

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