Libevent bundling ahead.
Hey All, We are considering bundling/vendoring libevent 2.0.22 with upcoming releases of Mesos. Let me explain the motivation and then go into some details. Due to https://issues.apache.org/jira/browse/MESOS-7076, SSL builds Mesos stopped functioning on distributions that offer libevent 2.1.8 by default. Specifically the failure was observed on Ubuntu 17/18 as well as on macOS. It has also just come to my attention that Fedora 18 shares the same fate. So the problem is less likely OS specific but more likely libevent + SSL + libprocess specific. Instead of getting stuck in the rabbit hole of debugging right away, I decided that bundling a known good version of libevent was the most reliable way to prevent sad faces when building Mesos with SS but instead we can be sure SSL builds of Mesos function properly across all supported platforms, out of the box. Details on the bundling; We will include libevent 2.0.22 and we also include a patch that makes that version build against both openssl 1.0.x as well as 1.1.x. For unbundled builds (--with-libevent) I have some additional checks foreseen that try to prevent a build of a known bad variant of libevent + SSL + Mesos. The bundling and those checks are a workaround, not a solution. I still am pursueing debugging the underlying cause. However, way too much time has passed already without a proper solution, hence this suggestion of a quick fix, bundling workaround. Let me know your thoughts! cheers, Till
[VOTE] Release Apache Mesos 1.7.0 (rc3)
Hi all, Please vote on releasing the following candidate as Apache Mesos 1.7.0. 1.7.0 includes the following: * Performance Improvements: * Master `/state` endpoint: ~130% throughput improvement through RapidJSON * Allocator: Improved allocator cycle significantly * Agent `/containers` endpoint: Fixed a performance issue * Agent container launch / destroy throughput is significantly improved * Containerization: * **Experimental** Supported docker image tarball fetching from HDFS * Added new `cgroups/all` and `linux/devices` isolators * Added metrics for `network/cni` isolator and docker pull latency * Windows: * Added support to libprocess for the Windows Thread Pool API * Multi-Framework Workloads: * **Experimental** Added per-framework metrics to the master * A new weighted random sorter was added as an alternative to the DRF sorter The CHANGELOG for the release is available at: https://gitbox.apache.org/repos/asf?p=mesos.git;a=blob_plain;f=CHANGELOG;hb=1.7.0-rc3 The candidate for Mesos 1.7.0 release is available at: https://dist.apache.org/repos/dist/dev/mesos/1.7.0-rc3/mesos-1.7.0.tar.gz The tag to be voted on is 1.7.0-rc3: https://gitbox.apache.org/repos/asf?p=mesos.git;a=commit;h=1.7.0-rc3 The SHA512 checksum of the tarball can be found at: https://dist.apache.org/repos/dist/dev/mesos/1.7.0-rc3/mesos-1.7.0.tar.gz.sha512 The signature of the tarball can be found at: https://dist.apache.org/repos/dist/dev/mesos/1.7.0-rc3/mesos-1.7.0.tar.gz.asc The PGP key used to sign the release is here: https://dist.apache.org/repos/dist/release/mesos/KEYS The JAR is in a staging repository here: https://repository.apache.org/content/repositories/orgapachemesos-1234 Please vote on releasing this package as Apache Mesos 1.7.0! The vote is open until Fri Sep 14 11:06:30 PDT 2018 and passes if a majority of at least 3 +1 PMC votes are cast. [ ] +1 Release this package as Apache Mesos 1.7.0 [ ] -1 Do not release this package because ... Thanks, Chun-Hung & Gastón
Speakers needed for Apache DC Roadshow
We need your help to make the Apache Washington DC Roadshow on Dec 4th a success. What do we need most? Speakers! We're bringing a unique DC flavor to this event by mixing Open Source Software with talks about Apache projects as well as OSS CyberSecurity, OSS in Government and and OSS Career advice. Please take a look at: http://www.apachecon.com/usroadshow18/ (Note: You are receiving this message because you are subscribed to one or more mailing lists at The Apache Software Foundation.) Rich, for the ApacheCon Planners -- rbo...@apache.org http://apachecon.com @ApacheCon
