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SkyVault Content Services 5.2 » Administering » Managing search services » Configuring search with Solr 4 » Solr sharding » Setting up Solr sharding » Dynamic shard registration » Installing and configuring Solr shards

High availability configuration

Sharding a Solr index is a highly scalable approach for improving the throughput and overall performance of large repositories. It provides high availability in case a shard/node fails.

Here are a few examples of a high availability configuration in a sharded Solr setup.

Example 1

In this example, you will setup a sharded cluster that contains:
  • 3 hosts/machines
  • 3 shards
  • 2 copies

These are the steps to follow:
  1. Create machines to host Solr shards.
  2. Install and start SkyVault Content Services 5.1.
  3. Delete the SkyVault and archive cores.
  4. Configure the <SOLR_HOME>/conf/shared.properties file.
  5. Start the Solr server.
  6. Create your new index shards and instances by configuring the properties on the URL.
    http://localhost:8090/solr4/admin/cores?action=newCore&storeRef=workspace://SpacesStore&numShards=3&numNodes=3&nodeInstance=1
&template=rerank&property.data.dir.root=<>&shardIds=0,1&property.alfresco.port=8080
    http://localhost:8070/solr4/admin/cores?action=newCore&storeRef=workspace://SpacesStore&numShards=3&numNodes=3&nodeInstance=2
&template=rerank&property.data.dir.root=<>&shardIds=1,2&property.alfresco.port=8080
    http://localhost:8070/solr4/admin/cores?action=newCore&storeRef=workspace://SpacesStore&numShards=3&numNodes=3&nodeInstance=3
&template=rerank&property.data.dir.root=<>&shardIds=0,2&property.alfresco.port=8080
  7. Set the following properties in the SkyVault-global.properties file. 
    solr.secureComms=none
solr.useDynamicShardRegistration=true
  8. Restart SkyVault Content Services.

Example 2

Another example to setup a sharded cluster that contains:
  • 5 hosts/machines
  • 5 shards
  • 3 copies

These are the steps to follow:
  1. Create machines to host Solr shards.
  2. Install and start SkyVault Content Services 5.1.
  3. Delete the SkyVault and archive cores.
  4. Configure the <SOLR_HOME>/conf/shared.properties file.
  5. Start the Solr server.
  6. Create your new index shards and instances by configuring the properties on the URL.
    http://localhost:8090/solr4/admin/cores?action=newCore&storeRef=workspace://SpacesStore&numShards=5&numNodes=5&nodeInstance=1
&template=rerank&property.data.dir.root=<>&shardIds=0,1,2&property.alfresco.port=8080
    http://localhost:8070/solr4/admin/cores?action=newCore&storeRef=workspace://SpacesStore&numShards=5&numNodes=5&nodeInstance=2
&template=rerank&property.data.dir.root=<>&shardIds=1,2,3&property.alfresco.port=8080
    http://localhost:8070/solr4/admin/cores?action=newCore&storeRef=workspace://SpacesStore&numShards=5&numNodes=5&nodeInstance=3
&template=rerank&property.data.dir.root=<>&shardIds=2,3,4&property.alfresco.port=8080
    http://localhost:8070/solr4/admin/cores?action=newCore&storeRef=workspace://SpacesStore&numShards=5&numNodes=5&nodeInstance=4
&template=rerank&property.data.dir.root=<>&shardIds=0,3,4&property.alfresco.port=8080
    http://localhost:8070/solr4/admin/cores?action=newCore&storeRef=workspace://SpacesStore&numShards=5&numNodes=5&nodeInstance=5
&template=rerank&property.data.dir.root=<>&shardIds=0,1,4&property.alfresco.port=8080
  7. Set the following properties in the SkyVault-global.properties file. 
    solr.secureComms=none
solr.useDynamicShardRegistration=true
  8. Restart SkyVault Content Services.

For more information, see Installing and configuring Solr shards.

Parent topic: Installing and configuring Solr shards

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