Re: Antw: Re: Solr 6.2.1 :: Collection Aliasing

[Shawn Heisey]

On 12/12/2016 3:56 AM, Rainer Gnan wrote:
> Do the query this way:
> http://hostname.de:8983/solr/live/select?indent=on=*:* 
>
> I have no idea whether the behavior you are seeing is correct or wrong,
> but if you send the traffic directly to the alias it should work correctly.
>
> It might turn out that this is a bug, but I believe the above workaround
> should take care of the issue in your environment.

It's standard SolrCloud usage.  You use the name of a collection in the
URL path after /solr, where normally (non-cloud) you would use a core
name.  All aliases, even those with multiple collections, will work for
queries, and single-collection aliases would have predictable results
for updates.  I do not have any documentation to point you at, although
it's possible that this IS mentioned in the docs.

Thanks,
Shawn

Antw: Re: Solr 6.2.1 :: Collection Aliasing

[Rainer Gnan]

Hi Shawn,

your workaround works and is exactly what I was looking for.
Did you find this solution via trial and error or can you point me to the 
appropriate section in the APRGuide?

Thanks a lot!
Rainer


Rainer Gnan
Bayerische Staatsbibliothek 
BibliotheksVerbund Bayern
Verbundnahe Dienste
80539 München
Tel.: +49(0)89/28638-2445
Fax: +49(0)89/28638-2665
E-Mail: rainer.g...@bsb-muenchen.de




>>> Shawn Heisey  12.12.2016 11:43 >>>
On 12/12/2016 3:32 AM, Rainer Gnan wrote:
> Hi,
>
> actually I am trying to use Collection Aliasing in a SolrCloud-environment.
>
> My set up is as follows:
>
> 1. Collection_1 (alias "live") linked with config_1
> 2. Collection_2 (alias "test") linked with config_2
> 3. Collection_1 is different to Collection _2
> 4. config_1 is different to config_2 
>
> Case 1: Using
> http://hostname.de:8983/solr/Collection_2/select?indent=on=*:*=xml=test
>  
> leads to the same results as
> http://hostname.de:8983/solr/Collection_2/select?indent=on=*:*=xml 
> which is correct.
>
> Case 2: Using
> http://hostname.de:8983/solr/Collection_1/select?indent=on=*:*=xml=live
>  
> leads to the same result as
> http://hostname.de:8983/solr/Collection_1/select?indent=on=*:*=xml 
> which is correct, too.
>
> BUT
>
> Case 3: Using
> http://hostname.de:8983/solr/Collection_2/select?indent=on=*:*=xml=live
>  
> leads NOT to the same result as
> http://hostname.de:8983/solr/Collection_1/select?indent=on=*:*=xml=live
>  
> or 
> http://hostname.de:8983/solr/Collection_1/select?indent=on=*:*=xml 

Do the query this way:

http://hostname.de:8983/solr/live/select?indent=on=*:* 

I have no idea whether the behavior you are seeing is correct or wrong,
but if you send the traffic directly to the alias it should work correctly.

It might turn out that this is a bug, but I believe the above workaround
should take care of the issue in your environment.

Thanks,
Shawn