Solr Updates which is faster solrj or curl

Question

I have a case where I have a set of fields to be updated in solr. The input i recieve is in form of a map, key being field name and value is the updated value. I had a doubt that in such a scenario should i be using curl to update the doc or solrj where I have to convert the map to solrInputDocument and then call add command. Will the first approach be faster than second?

Answer 1

• You can convert the map to SolrInputdocument.

• Curl uses HTTP URL. All requests go to HttpSolrServer(Im not quite sure about it). However, in my experience, I would strongly recommend ConcurrentUpdateSolrServer which is meant for updates

SolrJ has ConcurrentUpdateSolrServer class which describes like below.

ConcurrentUpdateSolrServer buffers all added documents and writes them into open HTTP connections. This class is thread safe. Params from UpdateRequest are converted to http request parameters. When params change between UpdateRequests a new HTTP request is started. Although any SolrServer request can be made with this implementation, it is only recommended to use ConcurrentUpdateSolrServer with /update requests. The class HttpSolrServer is better suited for the query interface.

The below is example way to get Solr Server instance

/**
     * Method lookUpConcurrentUpdateSolrServerInstance.
     * 
     * @param baseURL String
     * @param collection String
     * @return ConcurrentUpdateSolrServer
     * @throws SolrServerException
     * @throws IOException
     * @throws Exception
     */
    public static ConcurrentUpdateSolrClient lookUpConcurrentUpdateSolrServerInstance(String baseURL, String collection)
                    throws SolrServerException, IOException, Exception {

        ConcurrentUpdateSolrClient solrServer = null;
        if (StringUtils.isNotBlank(baseURL) && StringUtils.isNotBlank(collection)) {

            solrServer = new ConcurrentUpdateSolrClient(baseURL + collection, "queueSizeasInteger", 10), 
                            "threadCount as integer", 10));
            checkServerStatus(solrServer);
            return solrServer;
        }

        return solrServer;
    }