HTTP ERROR 404 while accessing solr admin

1
votes

I am using solr-6.5.1. I was able to install Solr, create a collection, index files using my application and also search for data from Solr. I was using the following URL to access Solr: http://localhost:8983/solr/swcm Everything was working fine for me until today. Now when I try to access the above URL, it gives the following error:

HTTP ERROR 404

Problem accessing /solr/swcm. Reason:

    Not Found

But if I use the following URL: http://localhost:8983/solr/#/swcm I am able to access the Solr admin. But the issue with this url is when I try to search for data in the collection using my Spring MVC Java application. I get the following exception:

SEVERE: Servlet.service() for servlet [appServlet] in context with path [/smartwcm-admin] threw exception [Request processing failed; nested exception is org.apache.solr.client.solrj.impl.HttpSolrClient$RemoteSolrException: Error from server at http://localhost:8983/solr/#/swcm: Expected mime type application/xml but got text/html. <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">

And the code I use is:

solrClient = new HttpSolrClient.Builder("http://localhost:8983/solr/#/swcm").build();
solrClient.setParser(new XMLResponseParser());
SolrQuery query = new SolrQuery();
query.setQuery("pageTitle:"+searchKey+"*);
query.setFields("webContentDefinitionId");
query.setStart(start);   
query.setRows(count);
query.set("defType", "edismax");
QueryResponse response = null;;
response = solrClient.query(query);
SolrDocumentList docList = response.getResults();

I am not sure what went wrong all of a sudden.

3
javasolrlucenesolrj
try taking the # out of the URL – nick_v1
@browskie, "localhost:8983/solr/swcm" is giving me an http 404 error – Geo Thomas

3 Answers

2
votes

The problem is the # into your base url http://localhost:8983/solr/#/swcm.

Try removing the misleading character:

solrClient = new HttpSolrClient.Builder("http://localhost:8983/solr/swcm").build();

I also suppose swcm is the name of your core/collection.

But you can't use http://localhost:8983/solr/swcm directly into your browser, because this is the baseurl for all the requests.

For example you can try with http://localhost:8983/solr/swcm/select?q=*:*&rows=10 which returns the first 10 documents in the swcm collection.

To understand better how is composed a Solr url, I'll split the given example in the main parts:

We can further break up the Solr Query in different parts:

  • In q=*:*, which is a common query used for return all the documents, q is the Query parameter, the former * means any available field name and the latter * stands for any value. q defines a query using standard query syntax. This parameter is mandatory.
  • rows=10 simply means returns 10 documents.
0
votes

One reason for this issue could be you haven't updated if you have changed the core name. Please see enter link description here

Also can you let me know what do you get when you access /solr/swcm/select?q=*

0
votes

Use solr base URL and add set collection to swcm using query.set("collection", swcm);

ex:

solrClient = new HttpSolrClient.Builder("http://localhost:8983/solr").build();
SolrQuery query = new SolrQuery();
query.set("collection", swcm);
query.setQuery("pageTitle:"+searchKey+"*);
query.setFields("webContentDefinitionId");
query.setStart(start);   
query.setRows(count);
query.set("defType", "edismax");
QueryResponse response = null;;
response = solrClient.query(query);
SolrDocumentList docList = response.getResults();