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From "Joel Bernstein (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (SOLR-6266) Couchbase plug-in for Solr
Date Fri, 26 Sep 2014 12:44:34 GMT

    [ https://issues.apache.org/jira/browse/SOLR-6266?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14149105#comment-14149105
] 

Joel Bernstein commented on SOLR-6266:
--------------------------------------

Karol,

Thanks for confirming the couchbase behavior. Let's see if we can reach consensus on the SolrCloud
design. Here is what I propose:

1) I agree that having a CAPIServer per-collection makes the most sense for the reasons that
Andrzej laid out. 

2) Based on your findings, let's go with simplest plan of having CAPIServers listening on
all replicas. This will also be the most robust scenario and allow Couchbase to replicate
in multiple threads to multiple nodes simultaneously.

3) In CouchbaseBehaviour.getNodesServingPool()  lets auto-discover the running CAPIServers
from the existing Zookeeper state information. To keep things simple we could return all active
replicas in the collection. Or we could ping each active node on the CAPIServer port to make
sure the CAPIServer is running.

Let's also not keep any extra book-keeping in Zookeeper unless we absolutely have to for this
ticket.

Joel


.

> Couchbase plug-in for Solr
> --------------------------
>
>                 Key: SOLR-6266
>                 URL: https://issues.apache.org/jira/browse/SOLR-6266
>             Project: Solr
>          Issue Type: New Feature
>            Reporter: Varun
>            Assignee: Joel Bernstein
>         Attachments: solr-couchbase-plugin.tar.gz, solr-couchbase-plugin.tar.gz
>
>
> It would be great if users could connect Couchbase and Solr so that updates to Couchbase
can automatically flow to Solr. Couchbase provides some very nice API's which allow applications
to mimic the behavior of a Couchbase server so that it can receive updates via Couchbase's
normal cross data center replication (XDCR).
> One possible design for this is to create a CouchbaseLoader that extends ContentStreamLoader.
This new loader would embed the couchbase api's that listen for incoming updates from couchbase,
then marshal the couchbase updates into the normal Solr update process. 
> Instead of marshaling couchbase updates into the normal Solr update process, we could
also embed a SolrJ client to relay the request through the http interfaces. This may be necessary
if we have to handle mapping couchbase "buckets" to Solr collections on the Solr side. 



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