solrconfig.xml for atomic update issue

<?xml version="1.0" encoding="UTF-8" ?>

<config>
  <luceneMatchVersion>7.3.1</luceneMatchVersion>

  <lib dir="${solr.install.dir:../../../..}/contrib/extraction/lib" regex=".*\.jar" />
  <lib dir="${solr.install.dir:../../../..}/dist/" regex="solr-cell-\d.*\.jar" />
  <lib dir="${solr.install.dir:../../../..}/contrib/clustering/lib/" regex=".*\.jar" />
  <lib dir="${solr.install.dir:../../../..}/dist/" regex="solr-clustering-\d.*\.jar" />
  <lib dir="${solr.install.dir:../../../..}/contrib/langid/lib/" regex=".*\.jar" />
  <lib dir="${solr.install.dir:../../../..}/dist/" regex="solr-langid-\d.*\.jar" />
  <lib dir="${solr.install.dir:../../../..}/contrib/velocity/lib" regex=".*\.jar" />
  <lib dir="${solr.install.dir:../../../..}/dist/" regex="solr-velocity-\d.*\.jar" />
  <lib dir="${solr.install.dir:../../../..}/contrib/analysis-extras/lib" regex=".*\.jar" />
  <lib dir="${solr.install.dir:../../../..}/contrib/analysis-extras/lucene-libs" regex=".*\.jar" />
  <lib dir="${solr.install.dir:../../../..}/dist/" regex="solr-analysis-extras-\d.*\.jar" />

  <dataDir>${solr.data.dir:}</dataDir>

  <directoryFactory name="DirectoryFactory"
                    class="${solr.directoryFactory:solr.NRTCachingDirectoryFactory}"/>

  <codecFactory class="solr.SchemaCodecFactory"/>

  <indexConfig>
    <!-- <writeLockTimeout>1000</writeLockTimeout>  -->
    <!-- <useCompoundFile>false</useCompoundFile> -->
    <!-- <ramBufferSizeMB>100</ramBufferSizeMB> -->
    <!-- <maxBufferedDocs>1000</maxBufferedDocs> -->
    <!--
        <mergePolicyFactory class="org.apache.solr.index.TieredMergePolicyFactory">
          <int name="maxMergeAtOnce">10</int>
          <int name="segmentsPerTier">10</int>
          <double name="noCFSRatio">0.1</double>
        </mergePolicyFactory>
      -->
    <!--
       <mergeScheduler class="org.apache.lucene.index.ConcurrentMergeScheduler"/>
       -->

    <lockType>${solr.lock.type:native}</lockType>

    <!--
    <deletionPolicy class="solr.SolrDeletionPolicy">
    -->
    <!-- <str name="maxCommitsToKeep">1</str> -->
    <!-- <str name="maxOptimizedCommitsToKeep">0</str> -->
    <!--
       <str name="maxCommitAge">30MINUTES</str>
       <str name="maxCommitAge">1DAY</str>
    -->
    <!--
    </deletionPolicy>
    -->

    <!-- <infoStream file="INFOSTREAM.txt">false</infoStream> -->
  </indexConfig>


  <!-- JMX

       This example enables JMX if and only if an existing MBeanServer
       is found, use this if you want to configure JMX through JVM
       parameters. Remove this to disable exposing Solr configuration
       and statistics to JMX.

       For more details see http://wiki.apache.org/solr/SolrJmx
    -->
  <jmx />
  <!-- If you want to connect to a particular server, specify the
       agentId
    -->
  <!-- <jmx agentId="myAgent" /> -->
  <!-- If you want to start a new MBeanServer, specify the serviceUrl -->
  <!-- <jmx serviceUrl="service:jmx:rmi:///jndi/rmi://localhost:9999/solr"/>
    -->

  <!-- The default high-performance update handler -->
  <updateHandler class="solr.DirectUpdateHandler2">

    <updateLog>
      <str name="dir">${solr.ulog.dir:}</str>
      <int name="numVersionBuckets">${solr.ulog.numVersionBuckets:65536}</int>
    </updateLog>

    <autoCommit>
      <maxTime>${solr.autoCommit.maxTime:15000}</maxTime>
      <openSearcher>false</openSearcher>
    </autoCommit>

    <autoSoftCommit>
      <maxTime>${solr.autoSoftCommit.maxTime:-1}</maxTime>
    </autoSoftCommit>

  </updateHandler>

  <query>

    <maxBooleanClauses>1024</maxBooleanClauses>

    <!-- Filter Cache

         Cache used by SolrIndexSearcher for filters (DocSets),
         unordered sets of *all* documents that match a query.  When a
         new searcher is opened, its caches may be prepopulated or
         "autowarmed" using data from caches in the old searcher.
         autowarmCount is the number of items to prepopulate.  For
         LRUCache, the autowarmed items will be the most recently
         accessed items.

         Parameters:
           class - the SolrCache implementation LRUCache or
               (LRUCache or FastLRUCache)
           size - the maximum number of entries in the cache
           initialSize - the initial capacity (number of entries) of
               the cache.  (see java.util.HashMap)
           autowarmCount - the number of entries to prepopulate from
               and old cache.
           maxRamMB - the maximum amount of RAM (in MB) that this cache is allowed
                      to occupy. Note that when this option is specified, the size
                      and initialSize parameters are ignored.
      -->
    <filterCache class="solr.FastLRUCache"
                 size="512"
                 initialSize="512"
                 autowarmCount="0"/>

    <!-- Query Result Cache

         Caches results of searches - ordered lists of document ids
         (DocList) based on a query, a sort, and the range of documents requested.
         Additional supported parameter by LRUCache:
            maxRamMB - the maximum amount of RAM (in MB) that this cache is allowed
                       to occupy
      -->
    <queryResultCache class="solr.LRUCache"
                      size="512"
                      initialSize="512"
                      autowarmCount="0"/>

    <!-- Document Cache

         Caches Lucene Document objects (the stored fields for each
         document).  Since Lucene internal document ids are transient,
         this cache will not be autowarmed.
      -->
    <documentCache class="solr.LRUCache"
                   size="512"
                   initialSize="512"
                   autowarmCount="0"/>

    <!-- custom cache currently used by block join -->
    <cache name="perSegFilter"
           class="solr.search.LRUCache"
           size="10"
           initialSize="0"
           autowarmCount="10"
           regenerator="solr.NoOpRegenerator" />

    <!-- Field Value Cache

         Cache used to hold field values that are quickly accessible
         by document id.  The fieldValueCache is created by default
         even if not configured here.
      -->
    <!--
       <fieldValueCache class="solr.FastLRUCache"
                        size="512"
                        autowarmCount="128"
                        showItems="32" />
      -->

      <!-- since we have very few and only small stored fields do not lazy load anything -->
    <enableLazyFieldLoading>false</enableLazyFieldLoading>

    <!-- Use Filter For Sorted Query

         A possible optimization that attempts to use a filter to
         satisfy a search.  If the requested sort does not include
         score, then the filterCache will be checked for a filter
         matching the query. If found, the filter will be used as the
         source of document ids, and then the sort will be applied to
         that.

         For most situations, this will not be useful unless you
         frequently get the same search repeatedly with different sort
         options, and none of them ever use "score"
      -->
    <!--
       <useFilterForSortedQuery>true</useFilterForSortedQuery>
      -->

    <!-- Result Window Size

         An optimization for use with the queryResultCache.  When a search
         is requested, a superset of the requested number of document ids
         are collected.  For example, if a search for a particular query
         requests matching documents 10 through 19, and queryWindowSize is 50,
         then documents 0 through 49 will be collected and cached.  Any further
         requests in that range can be satisfied via the cache.
      -->
    <queryResultWindowSize>20</queryResultWindowSize>

    <!-- Maximum number of documents to cache for any entry in the
         queryResultCache.
      -->
    <queryResultMaxDocsCached>200</queryResultMaxDocsCached>

    <useColdSearcher>false</useColdSearcher>

  </query>


  <requestDispatcher>

    <!-- HTTP Caching

         Set HTTP caching related parameters (for proxy caches and clients).
      -->
    <httpCaching never304="true" />
   <!--<httpCaching never304="false" lastModifiedFrom="openTime" etagSeed="tca7">-->
     <!--<cacheControl>max-age=30, public</cacheControl>-->
   <!--</httpCaching>-->
  </requestDispatcher>


  <requestHandler name="/query" class="solr.SearchHandler">

    <lst name="defaults">
        <!--<str name="df">text</str> -->
      <str name="echoParams">explicit</str>
      <str name="wt">json</str>
      <str name="indent">true</str>
      <!--<int name="rows">10</int>-->
    </lst>

       <arr name="components">
         <str>query</str>
         <!--<str>facet</str>-->
         <!--<str>mlt</str>-->
         <!--<str>highlight</str>-->
         <str>stats</str>
         <str>debug</str>
       </arr>
  </requestHandler>

  <!--<initParams path="/update/**,/query">-->
    <!--<lst name="defaults">-->
      <!--<str name="df">_text_</str>-->
    <!--</lst>-->
  <!--</initParams>-->


  <!-- The update.autoCreateFields property can be turned to false to disable schemaless mode -->
  <updateRequestProcessorChain name="default-chain" default="${update.autoCreateFields:true}">
    <processor class="solr.LogUpdateProcessorFactory"/>
    <processor class="solr.DistributedUpdateProcessorFactory"/>
    <processor class="solr.RunUpdateProcessorFactory"/>
  </updateRequestProcessorChain>


  <queryResponseWriter name="json" class="solr.JSONResponseWriter" default="true">
    <!--<str name="content-type">text/plain; charset=UTF-8</str>-->
  </queryResponseWriter>

</config>