Payloads slowing down add/delete doc

[Gary Yang]

Hi, there

In order to keep a DocID vs UID map, we added payload to a solr core. The 
search on UID is very fast but we get a problem with adding/deleting docs.  
Every time we commit an adding/deleting action, solr/lucene will take up to 30 
seconds to complete.  Without payload, a same action can be done in 
milliseconds.

We do need real time commit.

Here is the payload definition:

    <fieldType name="payloadfld" class="solr.TextField">
        <analyzer>
                <tokenizer 
class="org.apache.solr.analysis.KeywordTokenizerFactory"/>
                <filter 
class="org.apache.solr.analysis.DelimitedPayloadTokenFilterFactory" 
encoder="integer"/>
      </analyzer>
    </fieldType>

   <field name="uid" type="payloadfld" indexed="true" stored="false" 
required="true"/>


Any suggestions?

Any help is appreciated.

Best Regards

G. Y.