Hi Scott,
Any chance this could be an IPv6 thing? What if you start both server and
client with this flag:
-Djava.net.preferIPv4Stack=true
Michael Della Bitta
Senior Software Engineer
o: +1 646 532 3062
appinions inc.
“The Science of Influence Marketing”
18 East 41st Street
New York, NY 10017
t: @appinions | g+: plus.google.com/appinions
w: appinions.com
On Oct 3, 2014, at 15:08, Scott Johnson <sjohn...@dag.com> wrote:
> We are attempting to improve our Solr response time as our application uses
> Solr for large and time consuming queries. We have found a very inconsistent
> result in the time elapsed when pinging Solr. If we ping Solr from a desktop
> Windows 7 machine, there is usually a 5 ms elapsed time. But if we ping the
> same Solr instance from a Windows Server 2008 machine, it takes about 15 ms.
> This could be the difference between a 1 hour process and a 3 hour process,
> so it is something we would like to debug and fix if possible.
>
>
>
> Does anybody have any ideas about why this might be? We get these same
> results pretty consistently (testing on multiple desktops and servers). One
> thing that seemed to have an impact is removing various additional JDKs that
> had been installed, and JDK 1.7u67 specifically seemed to make a difference.
>
>
>
> Finally, the code we are suing to test this is below. If there is a better
> test I would be curious to hear that as well.
>
>
>
> Thanks,
>
>
> Scott
>
>
>
>
>
> package solr;
>
>
>
> import org.apache.commons.lang.StringUtils;
>
> import org.apache.solr.client.solrj.SolrQuery;
>
> import org.apache.solr.client.solrj.SolrRequest.METHOD;
>
> import org.apache.solr.client.solrj.impl.BinaryRequestWriter;
>
> import org.apache.solr.client.solrj.impl.BinaryResponseParser;
>
> import org.apache.solr.client.solrj.impl.HttpSolrServer;
>
> import org.apache.solr.client.solrj.response.QueryResponse;
>
> import org.apache.solr.client.solrj.response.SolrPingResponse;
>
> import org.apache.solr.common.SolrDocumentList;
>
>
>
> public class SolrTest {
>
>
>
> private HttpSolrServer server;
>
>
>
> /**
>
> * @param args
>
> * @throws Exception
>
> */
>
> public static void main(String[] args) throws Exception {
>
> SolrTest solr = new SolrTest(args);
>
> // Run it a few times, the second time runs
> a lot faster.
>
> for (int i=0; i<3; i++) {
>
> solr.execute();
>
> }
>
> }
>
>
>
> public SolrTest(String[] args) throws Exception {
>
> String targetUrl = args[0];
>
>
>
> System.out.println("=============System
> properties=============");
>
> System.out.println("Start solr test.... " +
> targetUrl);
>
>
>
> server = new HttpSolrServer("http://"; +
> targetUrl + ":8111/solr/search/");
>
> server.setRequestWriter(new
> BinaryRequestWriter());
>
> server.setParser(new
> BinaryResponseParser());
>
> server.setAllowCompression(true);
>
> server.setDefaultMaxConnectionsPerHost(128);
>
> server.setMaxTotalConnections(128);
>
>
>
> SolrPingResponse response = server.ping();
>
> System.out.println("Ping time: " +
> response.getElapsedTime() + " ms");
>
> System.out.println("Ping time: " +
> response.getElapsedTime() + " ms");
>
> }
>
>
>
> private void execute() throws Exception {
>
> SolrQuery query = new SolrQuery();
>
> query.setParam("start", "0");
>
> query.setParam("rows", "1");
>
>
>
> long startTime = System.currentTimeMillis();
>
>
>
> QueryResponse queryResponse =
> server.query(query, METHOD.POST);
>
>
>
> long elapsedTime =
> (System.currentTimeMillis() - startTime);
>
>
>
> SolrDocumentList results =
> queryResponse.getResults();
>
> long totalHits = results.getNumFound();
>
>
>
> System.out.println("Search hits:" +
> totalHits
>
> + ". Total
> elapsed time:" + elapsedTime + " ms"
>
> + ". Solr
> elapsed time:" + queryResponse.getElapsedTime() + " ms"
>
> + ". Solr
> query time:" + queryResponse.getQTime() + " ms"
>
> + ". Params:
> " + getSearchParams(query));
>
> }
>
>
>
>
>
> /**
>
> * Formats solr query parameters so that we know what's passed to solr.
>
> * @param query
>
> * @return
>
> */
>
> private String getSearchParams(SolrQuery query) {
>
> StringBuilder sb = new StringBuilder();
>
> boolean first = true;
>
>
>
> for (String name :
> query.getParameterNames()) {
>
> if (first) {
>
> first =
> false;
>
> } else {
>
> sb.append(";
> ");
>
> }
>
>
> sb.append(name).append(":[").append(StringUtils.join(query.getParams(name),
> ", ")).append("]");
>
> }
>
> return sb.toString();
>
> }
>
> }
>
