Looking a little deeper, I did find this about UUIDField http://lucene.apache.org/solr/4_9_0/solr-core/org/apache/solr/schema/UUIDField.html
"NOTE: Configuring a UUIDField instance with a default value of "NEW" is not advisable for most users when using SolrCloud (and not possible if the UUID value is configured as the unique key field) since the result will be that each replica of each document will get a unique UUID value. Using UUIDUpdateProcessorFactory<http://lucene.apache.org/solr/4_9_0/solr-core/org/apache/solr/update/processor/UUIDUpdateProcessorFactory.html> to generate UUID values when documents are added is recomended instead.” That might describe the behavior you saw. And the use of UUIDUpdateProcessorFactory to auto generate ID’s seems to be covered well here: http://solr.pl/en/2013/07/08/automatically-generate-document-identifiers-solr-4-x/ Though I’ve not actually tried that process before. On Nov 11, 2014, at 7:39 PM, Garth Grimm <garthgr...@averyranchconsulting.com<mailto:garthgr...@averyranchconsulting.com>> wrote: “uuid” isn’t an out of the box field type that I’m familiar with. Generally, I’d stick with the out of the box advice of the schema.xml file, which includes things like…. <!-- Only remove the "id" field if you have a very good reason to. While not strictly required, it is highly recommended. A <uniqueKey> is present in almost all Solr installations. See the <uniqueKey> declaration below where <uniqueKey> is set to "id". --> <field name="id" type="string" indexed="true" stored="true" required="true" multiValued="false" /> and… <!-- Field to use to determine and enforce document uniqueness. Unless this field is marked with required="false", it will be a required field --> <uniqueKey>id</uniqueKey> If you’re creating some key/value pair with uuid as the key as you feed documents in, and you know that the uuid values you’re creating are unique, just change the field name and unique key name from ‘id’ to ‘uuid’. Or change the key name you send in from ‘uuid’ to ‘id’. On Nov 11, 2014, at 7:18 PM, S.L <simpleliving...@gmail.com<mailto:simpleliving...@gmail.com>> wrote: Hi All, I am seeing interesting behavior on the replicas , I have a single shard and 6 replicas and on SolrCloud 4.10.1 . I only have a small number of documents ~375 that are replicated across the six replicas . The interesting thing is that the same document has a different id in each one of those replicas . This is causing the fq(id:xyz) type queries to fail, depending on which replica the query goes to. I have specified the id field in the following manner in schema.xml, is it the right way to specifiy an auto generated id in SolrCloud ? <field name="id" type="uuid" indexed="true" stored="true" required="true" multiValued="false" /> Thanks.
