Re: Questions about installing Stanchion for Riak CS

[Alex De la rosa]

Hi Luke,

Cool, understood :) then is not as troublesome as I thought.

Thanks,
Alex

On Mon, May 23, 2016 at 10:37 PM, Luke Bakken  wrote:

> On Mon, May 23, 2016 at 11:07 AM, Alex De la rosa
>  wrote:
> > So if the node with Stanchion fatally crashed and can not be recovered I
> can
> > install Stanchion in another node and this node will get the "master"
> role?
>
> Yes. There is no concept of "master" or "slave" with Stanchion, since
> only one Stanchion process should ever be running at a time and
> servicing requests.
>
> > Also, you said that if Stanchion is down it can not create users and
> > buckets... but can it still create keys inside the existing buckets? and
> > also read data from the nodes?
>
> Yes, since these operations do not involve Stanchion.
>
> --
> Luke Bakken
> Engineer
> lbak...@basho.com
>
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Re: Questions about installing Stanchion for Riak CS

[Luke Bakken]

On Mon, May 23, 2016 at 11:07 AM, Alex De la rosa
 wrote:
> So if the node with Stanchion fatally crashed and can not be recovered I can
> install Stanchion in another node and this node will get the "master" role?

Yes. There is no concept of "master" or "slave" with Stanchion, since
only one Stanchion process should ever be running at a time and
servicing requests.

> Also, you said that if Stanchion is down it can not create users and
> buckets... but can it still create keys inside the existing buckets? and
> also read data from the nodes?

Yes, since these operations do not involve Stanchion.

--
Luke Bakken
Engineer
lbak...@basho.com

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Re: Questions about installing Stanchion for Riak CS

[Alex De la rosa]

So if the node with Stanchion fatally crashed and can not be recovered I
can install Stanchion in another node and this node will get the "master"
role?

Also, you said that if Stanchion is down it can not create users and
buckets... but can it still create keys inside the existing buckets? and
also read data from the nodes?

Thanks,
Alex

On Mon, May 23, 2016 at 9:15 PM, Luke Bakken  wrote:

> Alex -
>
> You won't be able to create new users or buckets while Stanchion is
> offline. You would follow normal procedures to rebuild Riak KV on the
> crashed node, and in the meantime could bring up Stanchion on an
> existing node.
> --
> Luke Bakken
> Engineer
> lbak...@basho.com
>
>
> On Mon, May 23, 2016 at 9:29 AM, Alex De la rosa
>  wrote:
> > Hi Luke,
> >
> > Ok, understood, what if I don't have a load balancer and the node having
> > Stanchion crashes? what will happen to the cluster and how to rebuild it?
> >
> > Thanks,
> > Alex
> >
> > On Mon, May 23, 2016 at 8:09 PM, Luke Bakken  wrote:
> >>
> >> Hi Alex,
> >>
> >> You should only have one active Stanchion process running in your
> >> cluster, since its purpose is to ensure consistent, ordered operations
> >> with regard to users and buckets. You can have a hot-backup if you
> >> configure a load balancer to proxy requests from the Riak CS
> >> processes.
> >> --
> >> Luke Bakken
> >> Engineer
> >> lbak...@basho.com
> >>
> >>
> >> On Sat, May 21, 2016 at 11:41 AM, Alex De la rosa
> >>  wrote:
> >> > Hi there,
> >> >
> >> > I'm creating a Riak CS cluster and I got some questions about the
> >> > following
> >> > sentence from the documentation:
> >> >
> >> > Riak KV and Riak CS must be installed on each node in your cluster.
> >> > Stanchion, however, needs to be installed on only one node.
> >> >
> >> > Is this statement saying that only 1 node can have Stanchion? Or can
> it
> >> > be
> >> > placed in more servers? like Riak KV and Riak CS must be in 5 out
> of
> >> > 5
> >> > nodes but Stanchion can be in 1 to 5 out of 5 nodes?
> >> >
> >> > If is referring that ONLY 1 out of 5 nodes can have Stanchion and the
> >> > other
> >> > 4 nodes are not allowed to have it installed, what happens if the
> >> > "master"
> >> > node that has Stanchion crashes?
> >> >
> >> > Thanks and Best Regards,
> >> > Alex
> >> >
> >> > ___
> >> > riak-users mailing list
> >> > riak-users@lists.basho.com
> >> > http://lists.basho.com/mailman/listinfo/riak-users_lists.basho.com
> >> >
> >
> >
>
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Re: Questions about installing Stanchion for Riak CS

[Sargun Dhillon]

I never got around to it, but it should be pretty easy to glue Consul
to Stanchion to HaProxy. As far as gluing HAProxy to Consule -- that
should be pretty easy: https://github.com/hashicorp/consul-template.
And Stanchion with Consul lock:
https://www.consul.io/docs/commands/lock.html. It shouldn't take long.



On Mon, May 23, 2016 at 10:15 AM, Luke Bakken  wrote:
> Alex -
>
> You won't be able to create new users or buckets while Stanchion is
> offline. You would follow normal procedures to rebuild Riak KV on the
> crashed node, and in the meantime could bring up Stanchion on an
> existing node.
> --
> Luke Bakken
> Engineer
> lbak...@basho.com
>
>
> On Mon, May 23, 2016 at 9:29 AM, Alex De la rosa
>  wrote:
>> Hi Luke,
>>
>> Ok, understood, what if I don't have a load balancer and the node having
>> Stanchion crashes? what will happen to the cluster and how to rebuild it?
>>
>> Thanks,
>> Alex
>>
>> On Mon, May 23, 2016 at 8:09 PM, Luke Bakken  wrote:
>>>
>>> Hi Alex,
>>>
>>> You should only have one active Stanchion process running in your
>>> cluster, since its purpose is to ensure consistent, ordered operations
>>> with regard to users and buckets. You can have a hot-backup if you
>>> configure a load balancer to proxy requests from the Riak CS
>>> processes.
>>> --
>>> Luke Bakken
>>> Engineer
>>> lbak...@basho.com
>>>
>>>
>>> On Sat, May 21, 2016 at 11:41 AM, Alex De la rosa
>>>  wrote:
>>> > Hi there,
>>> >
>>> > I'm creating a Riak CS cluster and I got some questions about the
>>> > following
>>> > sentence from the documentation:
>>> >
>>> > Riak KV and Riak CS must be installed on each node in your cluster.
>>> > Stanchion, however, needs to be installed on only one node.
>>> >
>>> > Is this statement saying that only 1 node can have Stanchion? Or can it
>>> > be
>>> > placed in more servers? like Riak KV and Riak CS must be in 5 out of
>>> > 5
>>> > nodes but Stanchion can be in 1 to 5 out of 5 nodes?
>>> >
>>> > If is referring that ONLY 1 out of 5 nodes can have Stanchion and the
>>> > other
>>> > 4 nodes are not allowed to have it installed, what happens if the
>>> > "master"
>>> > node that has Stanchion crashes?
>>> >
>>> > Thanks and Best Regards,
>>> > Alex
>>> >
>>> > ___
>>> > riak-users mailing list
>>> > riak-users@lists.basho.com
>>> > http://lists.basho.com/mailman/listinfo/riak-users_lists.basho.com
>>> >
>>
>>
>
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Re: Questions about installing Stanchion for Riak CS

[Luke Bakken]

Alex -

You won't be able to create new users or buckets while Stanchion is
offline. You would follow normal procedures to rebuild Riak KV on the
crashed node, and in the meantime could bring up Stanchion on an
existing node.
--
Luke Bakken
Engineer
lbak...@basho.com


On Mon, May 23, 2016 at 9:29 AM, Alex De la rosa
 wrote:
> Hi Luke,
>
> Ok, understood, what if I don't have a load balancer and the node having
> Stanchion crashes? what will happen to the cluster and how to rebuild it?
>
> Thanks,
> Alex
>
> On Mon, May 23, 2016 at 8:09 PM, Luke Bakken  wrote:
>>
>> Hi Alex,
>>
>> You should only have one active Stanchion process running in your
>> cluster, since its purpose is to ensure consistent, ordered operations
>> with regard to users and buckets. You can have a hot-backup if you
>> configure a load balancer to proxy requests from the Riak CS
>> processes.
>> --
>> Luke Bakken
>> Engineer
>> lbak...@basho.com
>>
>>
>> On Sat, May 21, 2016 at 11:41 AM, Alex De la rosa
>>  wrote:
>> > Hi there,
>> >
>> > I'm creating a Riak CS cluster and I got some questions about the
>> > following
>> > sentence from the documentation:
>> >
>> > Riak KV and Riak CS must be installed on each node in your cluster.
>> > Stanchion, however, needs to be installed on only one node.
>> >
>> > Is this statement saying that only 1 node can have Stanchion? Or can it
>> > be
>> > placed in more servers? like Riak KV and Riak CS must be in 5 out of
>> > 5
>> > nodes but Stanchion can be in 1 to 5 out of 5 nodes?
>> >
>> > If is referring that ONLY 1 out of 5 nodes can have Stanchion and the
>> > other
>> > 4 nodes are not allowed to have it installed, what happens if the
>> > "master"
>> > node that has Stanchion crashes?
>> >
>> > Thanks and Best Regards,
>> > Alex
>> >
>> > ___
>> > riak-users mailing list
>> > riak-users@lists.basho.com
>> > http://lists.basho.com/mailman/listinfo/riak-users_lists.basho.com
>> >
>
>

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Re: Questions about installing Stanchion for Riak CS

[Alex De la rosa]

Hi Luke,

Ok, understood, what if I don't have a load balancer and the node having
Stanchion crashes? what will happen to the cluster and how to rebuild it?

Thanks,
Alex

On Mon, May 23, 2016 at 8:09 PM, Luke Bakken  wrote:

> Hi Alex,
>
> You should only have one active Stanchion process running in your
> cluster, since its purpose is to ensure consistent, ordered operations
> with regard to users and buckets. You can have a hot-backup if you
> configure a load balancer to proxy requests from the Riak CS
> processes.
> --
> Luke Bakken
> Engineer
> lbak...@basho.com
>
>
> On Sat, May 21, 2016 at 11:41 AM, Alex De la rosa
>  wrote:
> > Hi there,
> >
> > I'm creating a Riak CS cluster and I got some questions about the
> following
> > sentence from the documentation:
> >
> > Riak KV and Riak CS must be installed on each node in your cluster.
> > Stanchion, however, needs to be installed on only one node.
> >
> > Is this statement saying that only 1 node can have Stanchion? Or can it
> be
> > placed in more servers? like Riak KV and Riak CS must be in 5 out of
> 5
> > nodes but Stanchion can be in 1 to 5 out of 5 nodes?
> >
> > If is referring that ONLY 1 out of 5 nodes can have Stanchion and the
> other
> > 4 nodes are not allowed to have it installed, what happens if the
> "master"
> > node that has Stanchion crashes?
> >
> > Thanks and Best Regards,
> > Alex
> >
> > ___
> > riak-users mailing list
> > riak-users@lists.basho.com
> > http://lists.basho.com/mailman/listinfo/riak-users_lists.basho.com
> >
>
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Re: Questions about installing Stanchion for Riak CS

[Luke Bakken]

Hi Alex,

You should only have one active Stanchion process running in your
cluster, since its purpose is to ensure consistent, ordered operations
with regard to users and buckets. You can have a hot-backup if you
configure a load balancer to proxy requests from the Riak CS
processes.
--
Luke Bakken
Engineer
lbak...@basho.com


On Sat, May 21, 2016 at 11:41 AM, Alex De la rosa
 wrote:
> Hi there,
>
> I'm creating a Riak CS cluster and I got some questions about the following
> sentence from the documentation:
>
> Riak KV and Riak CS must be installed on each node in your cluster.
> Stanchion, however, needs to be installed on only one node.
>
> Is this statement saying that only 1 node can have Stanchion? Or can it be
> placed in more servers? like Riak KV and Riak CS must be in 5 out of 5
> nodes but Stanchion can be in 1 to 5 out of 5 nodes?
>
> If is referring that ONLY 1 out of 5 nodes can have Stanchion and the other
> 4 nodes are not allowed to have it installed, what happens if the "master"
> node that has Stanchion crashes?
>
> Thanks and Best Regards,
> Alex
>
> ___
> riak-users mailing list
> riak-users@lists.basho.com
> http://lists.basho.com/mailman/listinfo/riak-users_lists.basho.com
>

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Questions about installing Stanchion for Riak CS

[Alex De la rosa]

Hi there,

I'm creating a Riak CS cluster and I got some questions about the following
sentence from the documentation:

*Riak KV and Riak CS must be installed on each node in your cluster.
Stanchion, however, needs to be installed on only one node.*

Is this statement saying that only 1 node can have Stanchion? Or can it be
placed in more servers? like Riak KV and Riak CS *must* be in 5 out of
5 nodes but Stanchion *can* be in 1 to 5 out of 5 nodes?

If is referring that *ONLY* 1 out of 5 nodes *can* have Stanchion and the
other 4 nodes are not allowed to have it installed, what happens if the
"master" node that has Stanchion crashes?

Thanks and Best Regards,
Alex
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