SOLR-2631: improve the example usage(s) of PingRequestHandler to reduce risk of people ever even seeing an error about recursive ping

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1142722 13f79535-47bb-0310-9956-ffa450edef68

solr/contrib/clustering/src/test/resources/solr-clustering/conf/solrconfig.xml

@@ -454,15 +454,6 @@
   -->
   <requestHandler name="/admin/" class="org.apache.solr.handler.admin.AdminHandlers" />
   
-  <!-- ping/healthcheck -->
-  <requestHandler name="/admin/ping" class="PingRequestHandler">
-    <lst name="defaults">
-      <str name="qt">standard</str>
-      <str name="q">solrpingquery</str>
-      <str name="echoParams">all</str>
-    </lst>
-  </requestHandler>
-    
   <!-- Echo the request contents back to the client -->
   <requestHandler name="/debug/dump" class="solr.DumpRequestHandler" >
     <lst name="defaults">

solr/contrib/uima/src/test/resources/solr-uima/conf/solrconfig.xml

@@ -934,15 +934,6 @@
   <requestHandler name="/admin/"
     class="org.apache.solr.handler.admin.AdminHandlers" />
 
-  <!-- ping/healthcheck -->
-  <requestHandler name="/admin/ping" class="PingRequestHandler">
-    <lst name="defaults">
-      <str name="qt">standard</str>
-      <str name="q">solrpingquery</str>
-      <str name="echoParams">all</str>
-    </lst>
-  </requestHandler>
-
   <!-- Echo the request contents back to the client -->
   <requestHandler name="/debug/dump" class="solr.DumpRequestHandler">
     <lst name="defaults">

solr/example/example-DIH/solr/db/conf/solrconfig.xml

@@ -495,15 +495,6 @@
   -->
   <requestHandler name="/admin/" class="org.apache.solr.handler.admin.AdminHandlers" />
   
-  <!-- ping/healthcheck -->
-  <requestHandler name="/admin/ping" class="PingRequestHandler">
-    <lst name="defaults">
-      <str name="qt">standard</str>
-      <str name="q">solrpingquery</str>
-      <str name="echoParams">all</str>
-    </lst>
-  </requestHandler>
-    
   <!-- Echo the request contents back to the client -->
   <requestHandler name="/debug/dump" class="solr.DumpRequestHandler" >
     <lst name="defaults">

solr/example/example-DIH/solr/mail/conf/solrconfig.xml

@@ -681,15 +681,6 @@
   -->
   <requestHandler name="/admin/" class="org.apache.solr.handler.admin.AdminHandlers" />
 
-  <!-- ping/healthcheck -->
-  <requestHandler name="/admin/ping" class="PingRequestHandler">
-    <lst name="defaults">
-      <str name="qt">standard</str>
-      <str name="q">solrpingquery</str>
-      <str name="echoParams">all</str>
-    </lst>
-  </requestHandler>
-
   <!-- Echo the request contents back to the client -->
   <requestHandler name="/debug/dump" class="solr.DumpRequestHandler" >
     <lst name="defaults">

solr/example/example-DIH/solr/rss/conf/solrconfig.xml

@@ -494,15 +494,6 @@
   -->
   <requestHandler name="/admin/" class="org.apache.solr.handler.admin.AdminHandlers" />
   
-  <!-- ping/healthcheck -->
-  <requestHandler name="/admin/ping" class="PingRequestHandler">
-    <lst name="defaults">
-      <str name="qt">standard</str>
-      <str name="q">solrpingquery</str>
-      <str name="echoParams">all</str>
-    </lst>
-  </requestHandler>
-    
   <!-- Echo the request contents back to the client -->
   <requestHandler name="/debug/dump" class="solr.DumpRequestHandler" >
     <lst name="defaults">

solr/example/solr/conf/solrconfig.xml

@@ -1006,9 +1006,11 @@
 
   <!-- ping/healthcheck -->
   <requestHandler name="/admin/ping" class="solr.PingRequestHandler">
-    <lst name="defaults">
+    <lst name="invariants">
       <str name="qt">search</str>
       <str name="q">solrpingquery</str>
+    </lst>
+    <lst name="defaults">
       <str name="echoParams">all</str>
     </lst>
   </requestHandler>