While not a blocker (since it's a long-standing issue), I'd recommend cherry-picking MESOS-2182 <https://issues.apache.org/jira/browse/MESOS-2182> .
With very large clusters this issue appears to trigger false removals of slaves due to blocking of the SocketManager. For us it was about 5% of the slaves that were removed over the course of a failover, which is quite dangerous for production use-cases. I've attached the cherry-picks for getting these on top of 0.21.0 (not sure if apache will strip them, but you're mesosphere email should get them). On Thu, Dec 18, 2014 at 3:36 PM, Tim Chen <t...@mesosphere.io> wrote: > > Hi all, > > Please vote on releasing the following candidate as Apache Mesos 0.21.1. > > 0.21.1 includes the following: > > -------------------------------------------------------------------------------- > * This is a bug fix release. > > ** Bug > * [MESOS-2047] Isolator cleanup failures shouldn't cause TASK_LOST. > * [MESOS-2071] Libprocess generates invalid HTTP > * [MESOS-2147] Large number of connections slows statistics.json > responses. > > ** Improvement > * [MESOS-1925] Docker kill does not allow containers to exit gracefully > * [MESOS-2113] Improve configure to find apr and svn libraries/headers > in OSX > > > The CHANGELOG for the release is available at: > > https://git-wip-us.apache.org/repos/asf?p=mesos.git;a=blob_plain;f=CHANGELOG;hb=0.21.1-rc1 > > -------------------------------------------------------------------------------- > > The candidate for Mesos 0.21.1 release is available at: > https://dist.apache.org/repos/dist/dev/mesos/0.21.1-rc1/mesos-0.21.1.tar.gz > > The tag to be voted on is 0.21.1-rc1: > https://git-wip-us.apache.org/repos/asf?p=mesos.git;a=commit;h=0.21.1-rc1 > > The MD5 checksum of the tarball can be found at: > > https://dist.apache.org/repos/dist/dev/mesos/0.21.1-rc1/mesos-0.21.1.tar.gz.md5 > > The signature of the tarball can be found at: > > https://dist.apache.org/repos/dist/dev/mesos/0.21.1-rc1/mesos-0.21.1.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 up in Maven in a staging repository here: > https://repository.apache.org/content/repositories/orgapachemesos-1044 > > Please vote on releasing this package as Apache Mesos 0.21.1! > > The vote is open until Monday Dec 22 18:00:00 PST 2014 and passes if a > majority of at least 3 +1 PMC votes are cast. > > [ ] +1 Release this package as Apache Mesos 0.21.1 > [ ] -1 Do not release this package because ... > > Thanks, > > Tim & Till >
