Hi we've got examine up and running on our system

I was just wondering when does examine reindex content and how long does it usually take to re-index?

We had some content indexed and then i added the word lemon to the description to check if it would be indexed

I was able to find the page previously by seraching for 'Tafe' or 'students'. However, I added the word 'lemon' to the start of the content to try and search for that. I could not find any results for 'lemon' and the page no longer appears in any other search results. It appears to have been removed from the search index.

The examine index looks like:

<?xml version="1.0"?>
<!-- 
Umbraco examine is an extensible indexer and search engine.
This configuration file can be extended to create your own index sets.
Index/Search providers can be defined in the UmbracoSettings.config

More information and documentation can be found on CodePlex: http://umbracoexamine.codeplex.com-->;
<ExamineLuceneIndexSets>
    <!-- The internal index set used by Umbraco back-office - DO NOT REMOVE -->
    <IndexSet SetName="Default" IndexPath="~/App_Data/ExamineIndexes/Internal/">
        <IndexAttributeFields>
            <add Name="id" />
            <add Name="nodeName" />
            <add Name="updateDate" />
            <add Name="writerName" />
            <add Name="path" />
            <add Name="nodeTypeAlias" />
            <add Name="parentID" />
        </IndexAttributeFields>
        <IndexUserFields />
        <IncludeNodeTypes/>
        <ExcludeNodeTypes />
    </IndexSet>

    <IndexSet SetName="All" IndexPath="~/App_Data/ExamineIndexes/All/">
        <IndexAttributeFields>
            <add Name="id" />
            <add Name="nodeName" />
            <add Name="updateDate" />
            <add Name="writerName" />
            <add Name="path" />
            <add Name="nodeTypeAlias" />
            <add Name="parentID" />
        </IndexAttributeFields>
        <IndexUserFields>
            <add Name="title" />
            <add Name="description" />
            <add Name="content" />
            <add Name="overviewDescription" />
            <add Name="leftColumnContent" />
            <add Name="rightColumnContent" />
            <add Name="scheduleTitle" />
            <add Name="scheduleBlurb" />
            <add Name="longDescription" />
            <add Name="questionText"/>
            <add Name="answerText"/>
        </IndexUserFields>
        <IncludeNodeTypes/>
        <ExcludeNodeTypes>
            <add Name="externalLink" />
            <add Name="Blank" />
            <add Name="SitemapXml" />
        </ExcludeNodeTypes>
    </IndexSet>
</ExamineLuceneIndexSets>

The settings looks like so:

<?xml version="1.0"?>
<!-- 
Umbraco examine is an extensible indexer and search engine.
This configuration file can be extended to add your own search/index providers.
Index sets can be defined in the ExamineIndex.config if you're using the standard provider model.

More information and documentation can be found on CodePlex: http://umbracoexamine.codeplex.com
--> 
<Examine>
  <ExamineIndexProviders enableDefaultEventHandler="true">
    <providers>

      <!-- Interval is 30 seconds by default and sets the number of seconds between intervals that the indexing queue will be processed -->
      <!-- When debug is true, indexing will happen synchronously and throw visible exceptions if there are errors, otherwise
      if runAsync = true, indexing occurs async -->
      <add name="InternalIndex" type="UmbracoExamine.LuceneExamineIndexer, UmbracoExamine"
           indexSet="Default"
           enabled="true"
           runAsync="true"
           supportUnpublished="true"
           interval="10"
           analyzer="Lucene.Net.Analysis.WhitespaceAnalyzer, Lucene.Net"/> 

      <!-- Support protected is false by default but if set to true, the system will index nodes that have public access policies applied to them -->
      <add name="OurSiteIndex" type="UmbracoExamine.LuceneExamineIndexer, UmbracoExamine"
           indexSet="All"
                     debug="false"
                     enabled="true"
                     supportProtected="true"
                     supportUnpublished="false"
           analyzer="Lucene.Net.Analysis.Standard.StandardAnalyzer, Lucene.Net"/>

    </providers>
  </ExamineIndexProviders>
  <ExamineSearchProviders defaultProvider="OurSiteIndex">
    <providers>

      <add name="InternalSearch" type="UmbracoExamine.LuceneExamineSearcher, UmbracoExamine"
           indexSet="Default"
           analyzer="Lucene.Net.Analysis.WhitespaceAnalyzer, Lucene.Net"/>

      <add name="OurSiteIndex" type="UmbracoExamine.LuceneExamineSearcher, UmbracoExamine"
           indexSet="All"
           analyzer="Lucene.Net.Analysis.WhitespaceAnalyzer, Lucene.Net"/>

    </providers>
  </ExamineSearchProviders>
</Examine>