Hi all,
Please vote on releasing the following candidate as Apache Mesos 1.0.0.
NOTE: The voting period for this release is 3 weeks. Also, we are willing
to make API changes before the final release. So please test it thoroughly.
1.0.0 includes the following features:
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* Scheduler and Executor v1 HTTP APIs are now considered stable.
* [MESOS-4791] - **Experimental** support for v1 Master and Agent APIs.
These
APIs let operators and services (monitoring, load balancers) send HTTP
requests to '/api/v1' endpoint on master or agent. These APIs look
similar
to the v1 Scheduler and Executor APIs.
* [MESOS-4828] - **Experimental** support for a new `disk/xfs' isolator
has been added to isolate disk resources more efficiently. Please refer
to
docs/mesos-containerizer.md for more details.
* [MESOS-4355] - **Experimental** support for Docker volume plugin. We
added a
new isolator 'docker/volume' which allows users to use external volumes
in
Mesos containerizer. Currently, the isolator interacts with the Docker
volume plugins using a tool called 'dvdcli'. By speaking the Docker
volume
plugin API, most of the Docker volume plugins are supported.
* [MESOS-4641] - **Experimental** A new network isolator, the
`network/cni` isolator, has been introduced in the
`MesosContainerizer`. The
`network/cni` isolator implements the Container Network Interface (CNI)
specification proposed by CoreOS. With CNI the `network/cni` isolator
is
able to allocate a network namespace to Mesos containers and attach the
container to different types of IP networks by invoking network drivers
called CNI plugins.
* [MESOS-2948, MESOS-5403] - The authorizer interface has been refactored
in
order to decouple the ACLs definition language from the interface.
It additionally includes the option of retrieving `ObjectApprover`. An
`ObjectApprover` can be used to synchronously check authorizations for
a
given object and is hence useful when authorizing a large number of
objects
and/or large objects (which need to be copied using request based
authorization). NOTE: This is a **breaking change** for authorizer
modules.
* [MESOS-4931] - Authorization based HTTP endpoint filtering enables
operators
to restrict what part of the cluster state a user is authorized to see.
Consider for example the `/state` master endpoint: an operator can now
authorize users to only see a subset of the running frameworks, tasks,
or
executors.
* [MESOS-4909] - Tasks can now specify a kill policy. They are
best-effort,
because machine failures or forcible terminations may occur. Currently,
the
only available kill policy is how long to wait between graceful and
forcible
task kill. In the future, more policies may be available (e.g. hitting
an
HTTP endpoint, running a command, etc). Note that it is the executor's
responsibility to enforce kill policies. For executor-less
command-based
tasks, the kill is performed via sending a signal to the task process:
SIGTERM for the graceful kill and SIGKILL for the forcible kill. For
docker
executor-less tasks the grace period is passed to 'docker stop --time'.
This
feature supersedes the '--docker_stop_timeout', which is now
deprecated.
* [MESOS-4908] - The task kill policy defined within 'TaskInfo' can now
be
overridden when the scheduler kills the task. This can be used by
schedulers
to forcefully kill a task which is already being killed, e.g. if
something
went wrong during a graceful kill and a forcible kill is desired. Note
that
it is the executor's responsibility to honor the
'Event.kill.kill_policy'
field and override the task's kill policy and kill policy from a
previous
kill task request. To use this feature, schedulers and executors must
support HTTP API; use the '--http_command_executor' agent flag to
ensure
the agent launches the HTTP API based command executor.
* [MESOS-4949] - The executor shutdown grace period can now be configured
in
`ExecutorInfo`, which overrides the agent flag. When shutting down an
executor the agent will wait in a best-effort manner for the grace
period
specified here before forcibly destroying the container. The executor
must
not assume that it will always be allotted the full grace period, as
the
agent may decide to allot a shorter period and failures / forcible
terminations may occur. Together with kill policies this gives
frameworks
flexibility around how to clean up tasks and executors.
* [MESOS-3094] - **Experimental** support for launching mesos tasks on
Windows. Note that there are no isolation guarantees provided yet.
* [MESOS-4090] - The `mesos.native` python module has been split into
two,
`mesos.executor` and `mesos.scheduler`. This change also removes
un-necessary 3rd party dependencies from `mesos.executor` and
`mesos.scheduler`. `mesos.native` still exists, combining both modules
for
backwards compatibility with existing code.
* [MESOS-1478] - Phase I of the Slave to Agent rename is complete. To
support
the rename, new duplicate flags (e.g., --agent_reregister_timeout), new
binaries (e.g., mesos-agent) and WebUI sandbox links have been added.
All
the logging output has been updated to use the term 'agent' now. Flags,
binaries and scripts with 'slave' keyword have been deprecated (see
"Deprecations section below").
* [MESOS-4312] - **Experimental** support for building and running mesos
on
IBM PowerPC platform.
* [MESOS-4189] - Weights for resource roles can now be configured
dynamically
via the new '/weights' endpoint on the master.
* [MESOS-4424] - **Experimental** limited support for using Nvidia GPU as
a
resource. This initial support works when there is no container
filesystem
isolation in use. Improvements to the support to come in future
releases.
Deprecations:
* [MESOS-2281] - Deprecated the plain text format for credentials in
favor of
the JSON format.
* [MESOS-4910] - Deprecate the --docker_stop_timeout agent flag.
* [MESOS-5001] - The 'allocator/event_queue_dispatches' metric is now
deprecated in favor 'of allocator/mesos/event_queue_dispatches'.
* [MESOS-5029] - Deprecated the ExecutorInfo.source field in favor of
ExecutorInfo.labels.
* [MESOS-3781] - Deprecated flags with keyword 'slave' in favor of
'agent'.
* [MESOS-3779] - Deprecated sandbox links with 'slave' keyword in the
WebUI.
* [MESOS-3784] - Deprecated `slave` subcommand for mesos-cli.
* [MESOS-5155] - Deprecated `SET_QUOTA_WITH_ROLE` and
`DESTROY_QUOTA_WITH_PRINCIPAL` authorization actions together with the
corresponding ACLs in favor of a unified `UPDATE_QUOTA_WITH_ROLE`. This
change is applicable to both local authorizer as well as any custom
authorizer module.
Additional API Changes:
* [MESOS-4580] - Returning `202` (Accepted) for /reserve and related
endpoints.
* [MESOS-4735] - Added 'output_file' field to CommandInfo.URI in
Scheduler API
and v1 Scheduler HTTP API.
* [MESOS-5014] - Changes Call and Event Type enums in scheduler.proto
from required to optional for the purpose of backwards compatibility.
* [MESOS-5015] - Changes Call and Event Type enums in executor.proto
from required to optional for the purpose of backwards compatibility.
* [MESOS-5029] - Added 'labels' to ExecutorInfo.
* [MESOS-5030] - Added non-terminal task metadata to the container
resource
usage information.
* [MESOS-5408] - Deleted the /observe HTTP endpoint.
3rd Party Upgrades:
* [MESOS-4805] - Upgraded vendored ry-http-parser-1c3624a to
nodejs/http-parser 2.6.1.
* [MESOS-4678] - Upgraded vendored protobuf 2.5.0 to 2.6.1.
* [MESOS-4803] - Upgraded vendored libev 4.15 to 4.22.
* [MESOS-4612] - Upgraded vendored ZooKeeper 3.4.5 to 3.4.8.
Binary API Changes:
* [MESOS-5055] - Slave/Agent Rename Phase I - Update strings in the log
message
and standard output.
* [MESOS-3782] - Slave/Agent Rename Phase I - Duplicate/Rename binaries.
* [MESOS-5057] - Slave/Agent Rename Phase I - Update strings in error
messages and
other strings.
* [MESOS-5230] - Slave/Agent Rename Phase I: Rename
'/include/mesos/slave' folder
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=1.0.0-rc1
--------------------------------------------------------------------------------
The candidate for Mesos 1.0.0 release is available at:
https://dist.apache.org/repos/dist/dev/mesos/1.0.0-rc1/mesos-1.0.0.tar.gz
The tag to be voted on is 1.0.0-rc1:
https://git-wip-us.apache.org/repos/asf?p=mesos.git;a=commit;h=1.0.0-rc1
The MD5 checksum of the tarball can be found at:
https://dist.apache.org/repos/dist/dev/mesos/1.0.0-rc1/mesos-1.0.0.tar.gz.md5
The signature of the tarball can be found at:
https://dist.apache.org/repos/dist/dev/mesos/1.0.0-rc1/mesos-1.0.0.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 up in Maven in a staging repository here:
https://repository.apache.org/content/repositories/orgapachemesos-1142
Please vote on releasing this package as Apache Mesos 1.0.0!
The vote is open until *Wed Jun 22 12:00 PM PST 2016* and passes if a
majority of at least 3 +1 PMC votes are cast.
[ ] +1 Release this package as Apache Mesos 1.0.0
[ ] -1 Do not release this package because ...
Thanks,
