title: yahoo finance api returns empty response
body: <p>My application showing stock market data. I am using YQL for fetching stock data.</p>
  
  <p><a href="http://query.yahooapis.com/v1/public/yql?q=select%20%2a%20from%20yahoo.finance.quotes%20where%20symbol%20in%20%28%22SBIN.NS%22%29&amp;env=store://datatables.org/alltableswithkeys&amp;diagnostics=true&amp;format=xml" rel="nofollow">http://query.yahooapis.com/v1/public/yql?q=select%20*%20from%20yahoo.finance.quotes%20where%20symbol%20in%20(%22SBIN.NS%22)&amp;env=store://datatables.org/alltableswithkeys&amp;diagnostics=true&amp;format=xml</a></p>
  
  <p>Lats two days, When I am fetching morning or before (1.00 pm India time)  then yql query returns empty response. 
  But right now it show exact problem</p>
  
  <p>The query result is "yahoo.finance.quotes' has been blocked.</p>
  
  <p>Response is </p>
  
  <pre><code>    &lt;query xmlns:yahoo="http://www.yahooapis.com/v1/base.rng" yahoo:count="0" yahoo:created="2012-09-26T11:24:22Z" yahoo:lang="en-US"&gt;
      &lt;diagnostics&gt;
      &lt;publiclyCallable&gt;true&lt;/publiclyCallable&gt;
      &lt;url execution-start-time="20" execution-stop-time="23" execution-time="3" proxy="DEFAULT"&gt;
      &lt;![CDATA[
      http://www.datatables.org/yahoo/finance/yahoo.finance.quotes.xml
      ]]&gt;
      &lt;/url&gt;
      &lt;cache execution-start-time="25" execution-stop-time="26" execution-time="1" method="GET" type="MEMCACHED"&gt;
      &lt;![CDATA[ 13c4f8eac77ad886bade5a711c8c1ef5 ]]&gt;
      &lt;/cache&gt;
      &lt;javascript name="yahoo.finance.quotes" verb="select"&gt;
      &lt;![CDATA[
      com.yahoo.platforms.pipes.model.ModuleException: Error Codes: js.blocked.execute.request Message: "The current table 'yahoo.finance.quotes' has been blocked. It exceeded the allotted quotas of either time or instructions"
      ]]&gt;
      &lt;/javascript&gt;
      &lt;user-time&gt;26&lt;/user-time&gt;
      &lt;service-time&gt;4&lt;/service-time&gt;
      &lt;build-version&gt;30549&lt;/build-version&gt;
      &lt;/diagnostics&gt;
      &lt;results/&gt;
      &lt;/query&gt;
  </code></pre>
  
  <p>I am not exceed request limit 1000\hours. Just try in day 50 times.</p>