Hello Ashish. Therse is an unfinished work about this at https://issues.apache.org/jira/browse/SOLR-3383
Maybe you want to have a look and contribute? Arcadius. On 23 August 2015 at 17:02, Walter Underwood <wun...@wunderwood.org> wrote: > The last time that I used the HTTPClient library, it was non-blocking. It > doesn’t try to read from the socket until you ask for data from the > response object. That allows parallel requests without threads. > > Underneath, it has a pool of connections that can be reused. If the pool > is exhausted, it can block. > > wunder > Walter Underwood > wun...@wunderwood.org > http://observer.wunderwood.org/ (my blog) > > > On Aug 23, 2015, at 8:49 AM, Shawn Heisey <apa...@elyograg.org> wrote: > > > On 8/23/2015 7:46 AM, Ashish Mukherjee wrote: > >> I want to run few Solr queries in parallel, which are being done in a > >> multi-threaded model now. I was wondering if there are any client > libraries > >> to query Solr through a non-blocking I/O mechanism instead of a > threaded > >> model. Has anyone attempted something like this? > > > > The only client library that the Solr project makes is SolrJ -- the > > client for Java. If you are not using the SolrJ client, then the Solr > > project did not write it, and you should contact the authors of the > > library directly. > > > > SolrJ and Solr are both completely thread-safe, and multiple threads are > > recommended for highly concurrent usage. SolrJ uses HttpClient for > > communication with Solr. > > > > I was not able to determine whether the default httpclient settings will > > result in non-blocking I/O or not. As far as I am aware, nothing in > > SolrJ sets any explicit configuration for blocking or non-blocking I/O. > > You can create your own HttpClient object in a SolrJ program and have > > the SolrClient object use it. > > > > HttpClient uses HttpCore. Here is the main web page for these > components: > > > > https://hc.apache.org/ > > > > On this webpage, it says "HttpCore supports two I/O models: blocking I/O > > model based on the classic Java I/O and non-blocking, event driven I/O > > model based on Java NIO." There is no information here about which > > model is chosen by default. > > > > Thanks, > > Shawn > > > > -- Arcadius Ahouansou Menelic Ltd | Information is Power M: 07908761999 W: www.menelic.com ---
