Hi Vincenzo, according to our discoveries I would say the CloudSolrClient to be the most efficient way to interact with a Solr Cloud cluster.
ConcurrentUpdateSolrServer will be efficient for a single Solr instance, but using under the hood the XML Response Writer. Even if you prefer to use the javabin one ( which should be more efficient) . Cheers On 6 November 2015 at 14:15, Vincenzo D'Amore <v.dam...@gmail.com> wrote: > Hi Alessandro, > > I have followed your same path, having a look at java source. I inherited > an installation with CloudSolrServer (I still had solrcloud 4.8) but I was > not sure it was the right choice instead of the (apparently) more appealing > ConcurrentUpdateSolrClient. > > As far as I understood, ConcurrentUpdateSolrClient is rooted with older > versions of solr, may be older than the cloud version. > Because of ConcurrentUpdateSolrClient constructors signature, they don't > accept a zookeeper client or host:port as parameter. > > On the other hand, well, I'm not sure that a concurrent client does a job > better than the standard CloudSolrServer. > > Best, > Vincenzo > > > On Thu, Nov 5, 2015 at 12:30 PM, Alessandro Benedetti < > abenede...@apache.org > > wrote: > > > Hi guys, > > I was taking a look to the implementation details to understand how Solr > > requests are written by SolrJ APIs. > > The interesting classes are : > > > > *org.apache.solr.client.solrj.request.RequestWriter* > > > > *org.apache.solr.client.solrj.impl.BinaryRequestWriter* ( wrong package > ? ) > > > > I discovered that : > > > > *CloudSolrClient *- is using the javabin format ( *BinaryRequestWriter*) > > *HttpSolrClient *and* LBHttpSolrClient* - are using the *RequestWriter* ( > > which writes xml) > > > > In consequence the ConcurrentUpdateSolrClient is using the xml > > ResponseWriter as well. > > > > Is there any reason in this ? > > I did know that the javabin format is the most efficient for Solr > > requests. > > Why the xml RequestWriter is still used as default with those > SolrClients ? > > > > Cheers > > > > -- > > -------------------------- > > > > Benedetti Alessandro > > Visiting card : http://about.me/alessandro_benedetti > > > > "Tyger, tyger burning bright > > In the forests of the night, > > What immortal hand or eye > > Could frame thy fearful symmetry?" > > > > William Blake - Songs of Experience -1794 England > > > > > > -- > Vincenzo D'Amore > email: v.dam...@gmail.com > skype: free.dev > mobile: +39 349 8513251 > -- -------------------------- Benedetti Alessandro Visiting card : http://about.me/alessandro_benedetti "Tyger, tyger burning bright In the forests of the night, What immortal hand or eye Could frame thy fearful symmetry?" William Blake - Songs of Experience -1794 England
