I have heard that SolrCloud may require the presence of a uniqeKey field
specifically named 'id' for sharding.
Is this true? Is it still true as of Solr 4.2-SNAPSHOT? If not, what
svn commit fixed it? If so, should I file a jira? I am not actually
using SolrCloud for one index, but my worry is that once a precedent for
putting specific names in the code is set, it may bleed over into other
features. Also, I have another set of servers for a different purpose
that ARE using SolrCloud. Currently that system uses numShards=1, but
one day we might want to do a distributed search there.
Both my systems have a uniqueKey field other than 'id' and it would be
quite a task to change it. The 'id' field doesn't exist at all in
either system. Here's relevant info for one of the systems:
<field name="tag_id" type="lowercase" indexed="true" stored="true"
omitTermFreqAndPositions="true"/>
<!-- lowercases the entire field value -->
<fieldType name="lowercase" class="solr.TextField"
sortMissingLast="true" positionIncrementGap="0" omitNorms="true">
<analyzer>
<tokenizer class="solr.KeywordTokenizerFactory"/>
<filter class="solr.ICUFoldingFilterFactory"/>
<filter class="solr.TrimFilterFactory"/>
</analyzer>
</fieldType>
<uniqueKey>tag_id</uniqueKey>
Thanks,
Shawn
