Search on specific shard

[Ankit Jain <an...@gmail.com>]

Hi All,

I am using below piece of code to route a data on the basis of user field.
The data of user1 is going on one shard and data of user2 is going on
another shard.
 try {
            String zkHostString = "127.0.0.1:2181";
            CloudSolrServer cloudSolrServer = new
CloudSolrServer(zkHostString);
            CollectionAdminRequest.createCollection("collection5", 2, 2, 2,
null, null, "user", cloudSolrServer);
            cloudSolrServer.setDefaultCollection("collection5");

            for (int i = 0; i <= 100; i++) {
                SolrInputDocument document = new SolrInputDocument();
                document.addField("id", i);
                document.addField("user", "user"+(i%2));
                cloudSolrServer.add(document);
            }
            cloudSolrServer.commit();
            cloudSolrServer.shutdown();
        } catch (SolrException e) {
            e.printStackTrace();
        } catch (SolrServerException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        }

Now, I  want to use routing at search time. If user search the documents
for user1, then my query should be execute on only shard1 (shard1 contains
the data of user1).

Please let me know, how we can route the query to specific shard at search
time.

-- 
Thanks,
Ankit Jain

Re: Search on specific shard

[Anshum Gupta <an...@anshumgupta.net>]

Hi Ankit,

The following blog posts should help you understand composite-id routing in
SolrCloud better.

http://searchhub.org/2013/06/13/solr-cloud-document-routing/

A more complicated use case (multi-level routing) :
http://searchhub.org/2014/01/06/10590/



On Tue, Sep 2, 2014 at 6:38 AM, Ankit Jain <an...@gmail.com> wrote:

> Hi All,
>
> I am using below piece of code to route a data on the basis of user field.
> The data of user1 is going on one shard and data of user2 is going on
> another shard.
>  try {
>             String zkHostString = "127.0.0.1:2181";
>             CloudSolrServer cloudSolrServer = new
> CloudSolrServer(zkHostString);
>             CollectionAdminRequest.createCollection("collection5", 2, 2, 2,
> null, null, "user", cloudSolrServer);
>             cloudSolrServer.setDefaultCollection("collection5");
>
>             for (int i = 0; i <= 100; i++) {
>                 SolrInputDocument document = new SolrInputDocument();
>                 document.addField("id", i);
>                 document.addField("user", "user"+(i%2));
>                 cloudSolrServer.add(document);
>             }
>             cloudSolrServer.commit();
>             cloudSolrServer.shutdown();
>         } catch (SolrException e) {
>             e.printStackTrace();
>         } catch (SolrServerException e) {
>             e.printStackTrace();
>         } catch (IOException e) {
>             e.printStackTrace();
>         }
>
> Now, I  want to use routing at search time. If user search the documents
> for user1, then my query should be execute on only shard1 (shard1 contains
> the data of user1).
>
> Please let me know, how we can route the query to specific shard at search
> time.
>
> --
> Thanks,
> Ankit Jain
>



-- 

Anshum Gupta
http://www.anshumgupta.net