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From Erick Erickson <erickerick...@gmail.com>
Subject Re: Request node status independently
Date Thu, 01 Feb 2018 21:38:52 GMT
There's no wildcard for the CLUSTERSTATUS command. You can request
status for specific _collections_ by using the "collection" parameter
though.

Best,
Erick

On Thu, Feb 1, 2018 at 10:15 AM, Atita Arora <atitaarora@gmail.com> wrote:
> Hi Erick,
>
> Just as you mentioned about clusterstatus, I am using the same for almost
> the similar Usecase. The only issue I run into is that I need some way I
> could use prefix with collection param, is there some way to do that? So
> that I  can  query the specific collection of my interest.
> Note : My collection names are prefixed with clientId.
>
> Thanks,
> Atita
>
> On Feb 1, 2018 10:06 PM, "Erick Erickson" <erickerickson@gmail.com> wrote:
>
>> The Collections API CLUSTERSTATUS essentially gives you back the ZK
>> state.json for individual collections (or your cluster, see the
>> params). One note: Just because the state.json reports a replica as
>> "active" isn't definitive. If the node died unexpectedly its replicas
>> can't set the state when shutting down. So you also have to check
>> whether the replica's node is in the "live_nodes" znode.
>>
>> Best,
>> Erick
>>
>> On Thu, Feb 1, 2018 at 4:34 AM, Daniel Carrasco <d.carrasco@i2tic.com>
>> wrote:
>> > Hello,
>> >
>> > I'm trying to create a load balancer using HAProxy to detect nodes that
>> are
>> > down or recovering, but I'm not able to find the way to detect if the
>> node
>> > is healthy (the only commands i've seen check the entire cluster).
>> > Is there any way to check the node status using http responses and get
>> only
>> > if is healthy or recovering?. Of course if is dead I've got no response,
>> so
>> > that's easy.
>> >
>> > Thanks and greetings!!
>> >
>> > --
>> > _________________________________________
>> >
>> >       Daniel Carrasco Marín
>> >       Ingeniería para la Innovación i2TIC, S.L.
>> >       Tlf:  +34 911 12 32 84 Ext: 223
>> >       www.i2tic.com
>> > _________________________________________
>>

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