[
https://issues.apache.org/jira/browse/MESOS-4008?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Yongqiao Wang updated MESOS-4008:
---------------------------------
Assignee: Yongqiao Wang (was: Yongqiao Wang)
Description:
In Mesos master failover case, non-default weights should be recovered from
registry.
Note: if the replicated log for roles/weights has exist, and then it prefers to
use the registry values and ignore the flags (--weights), and also log a
warning in Mesos master that the flags values are being ignored.
The `--weights` flag is now considered deprecated and will be removed in a
future version of Mesos.
was:
To consider the Mesos master recovery and failover case, Mesos master needs to
persist the roles and weights information in registry:
- In the first boot, the first leading master initialize the replicated log
with the roles/weights specified by command-line flags(--roles and --weights).
The flags values are only useful to bootstrap the cluster, after which point
the registry becomes the source of truth.
- At runtime, the replicated log can only be updated to add/remove/update
entries by the operator REST API.
- For Mesos master restart/failover case, if the replicated log for
roles/weights has exist, and then it prefers to use the registry values and
ignore the flags (--roles/--weights), and also log a warning in Mesos master
that the flags values are being ignored.
- For the future works, we can educate end users to create the replicated log
to initialize the supported roles/weights before Mesos cluster bootstrap, and
reset roles/weights configurations by update the replicated log.
Summary: Recovery the non-default weights from registry when master
recovery. (was: Master recovery with the persisted roles in registry)
> Recovery the non-default weights from registry when master recovery.
> --------------------------------------------------------------------
>
> Key: MESOS-4008
> URL: https://issues.apache.org/jira/browse/MESOS-4008
> Project: Mesos
> Issue Type: Task
> Reporter: Yongqiao Wang
> Assignee: Yongqiao Wang
>
> In Mesos master failover case, non-default weights should be recovered from
> registry.
> Note: if the replicated log for roles/weights has exist, and then it prefers
> to use the registry values and ignore the flags (--weights), and also log a
> warning in Mesos master that the flags values are being ignored.
> The `--weights` flag is now considered deprecated and will be removed in a
> future version of Mesos.
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
