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Date: Mon, 29 Sep 2014 15:34:59 -0600
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Subject: Re: Mesos master failure question
From: Andy Grove <andy.grove@codefutures.com>
To: user@mesos.apache.org
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Thanks, Vinod. That is good to hear.

Thanks,

Andy.

--
Andy Grove
VP Engineering
CodeFutures Corporation


On Mon, Sep 29, 2014 at 11:59 AM, Vinod Kone <vinodkone@gmail.com> wrote:

> Executors/tasks will keep running when the master is down. Any status
> updates sent by executors will be cached by the slaves and retried upon a
> new master being elected as leader.
>
>
> -- Vinod
>
> On Mon, Sep 29, 2014 at 10:11 AM, Andy Grove <andy.grove@codefutures.com>
> wrote:
>
>> Hi,
>>
>> I'd like to clarify how master failures are handled. Do executors and
>> tasks continue operating while the master is down?
>>
>> For example, if I have 3 master nodes and my scheduler causes a mysql
>> server to start on a slave and then the leader master fails, will mysql
>> keep running through this failure?
>>
>> I read an article that said the slave stops all running tasks in the
>> event of a master failure, but I can't find that article now, and other
>> articles indicate otherwise. I couldn't find a conclusive answer in the
>> mesos docs either.
>>
>> Thanks,
>>
>> Andy.
>>
>> --
>> Andy Grove
>> VP Engineering
>> CodeFutures Corporation
>>
>>
>>
>

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<div dir=3D"ltr">Thanks, Vinod. That is good to hear.</div><div class=3D"gm=
ail_extra"><br clear=3D"all"><div><div dir=3D"ltr">Thanks,<div><br></div><d=
iv>Andy.</div><div><br></div><div>--<div>Andy Grove</div><div>VP Engineerin=
g</div><div>CodeFutures Corporation</div><div><br></div><div><br></div></di=
v></div></div>
<br><div class=3D"gmail_quote">On Mon, Sep 29, 2014 at 11:59 AM, Vinod Kone=
 <span dir=3D"ltr">&lt;<a href=3D"mailto:vinodkone@gmail.com" target=3D"_bl=
ank">vinodkone@gmail.com</a>&gt;</span> wrote:<br><blockquote class=3D"gmai=
l_quote" style=3D"margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left=
:1ex"><div dir=3D"ltr"><div dir=3D"ltr" style=3D"font-family:arial,sans-ser=
if;font-size:13px">Executors/tasks will keep running when the master is dow=
n. Any status updates sent by executors will be cached by the slaves and re=
tried upon a new master being elected as leader.</div><div style=3D"font-fa=
mily:arial,sans-serif;font-size:13px"></div></div><div class=3D"gmail_extra=
"><br clear=3D"all"><div><div><br></div><div>-- Vinod</div></div>
<br><div class=3D"gmail_quote">On Mon, Sep 29, 2014 at 10:11 AM, Andy Grove=
 <span dir=3D"ltr">&lt;<a href=3D"mailto:andy.grove@codefutures.com" target=
=3D"_blank">andy.grove@codefutures.com</a>&gt;</span> wrote:<br><blockquote=
 class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1px #ccc soli=
d;padding-left:1ex"><div dir=3D"ltr">Hi,<div><br></div><div>I&#39;d like to=
 clarify how master failures are handled. Do executors and tasks continue o=
perating while the master is down?</div><div><br></div><div>For example, if=
 I have 3 master nodes and my scheduler causes a mysql server to start on a=
 slave and then the leader master fails, will mysql keep running through th=
is failure?</div><div><br></div><div>I read an article that said the slave =
stops all running tasks in the event of a master failure, but I can&#39;t f=
ind that article now, and other articles indicate otherwise. I couldn&#39;t=
 find a conclusive answer in the mesos docs either.</div><div><br></div><di=
v><div><div dir=3D"ltr">Thanks,<div><br></div><div>Andy.</div><span class=
=3D"HOEnZb"><font color=3D"#888888"><div><br></div><div>--<div>Andy Grove</=
div><div>VP Engineering</div><div>CodeFutures Corporation</div><div><br></d=
iv><div><br></div></div></font></span></div></div>
</div></div>
</blockquote></div><br></div>
</blockquote></div><br></div>

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