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Posted to user@mesos.apache.org by Vinod Kone <vi...@apache.org> on 2018/08/02 23:29:13 UTC

Re: Mesos task history after restart

Mesos doesn't store task information in ZooKeeper. It is stored in Mesos
master's memory and recovered from Mesos agents after a master restart /
leader election.

The task history can be controlled by `max_completed_frameworks`,
`max_completed_tasks_per_framework` master flags.

AFAICT, the completed frameworks/executors/tasks information is recovered
too from the agents after a master failover. Are you not seeing them after
a master failover? Which version are you running?

On Tue, Jul 31, 2018 at 1:02 PM samiksha baskar <sa...@gmail.com>
wrote:

> I am using mesos for container orchestration and get task history from
> mesos using */task* endpoint.
>
> Mesos is running in a 7 nodes cluster and zookeeper is running in a 3 node
> cluster. I hope, mesos uses Zookeeper to store the task History. We lost
> history sometimes when we restart mesos. Does it store in memory? I am
> trying to understand what is happening here.
>
> My questions are,
>
>    1. Where does it store task histories?
>    2. How can we configure the task history cleanup policy?
>    3. Why do we loose complete task history on restarting mesos?
>
>