> I use SolrJ 6.4.0 and SolrCloud 6.4.0
Please upgrade to 6.4.2 immediately. 6.4.0 has major performance problems.
On Wed, Mar 29, 2017 at 12:12 AM, Mikhail Ibraheem <
mikhail.ibrah...@oracle.com> wrote:
> Thanks Shawn so much.
> I use SolrJ 6.4.0 and SolrCloud 6.4.0
> The code is very simple:
> I have Spring singleton bean to get one and only one instance of
> solrCloudClient as:
>
> @Value("${zkHost.url:rws00dtr.us.oracle.com:2181,rws00dtr.
> us.oracle.com:2182,rws00dtr.us.oracle.com:2183}")
> private String zkHost;
> @Bean
> public CloudSolrClient solrClient() {
> Builder builder = new CloudSolrClient.Builder().withZkHost(zkHost);
> CloudSolrClient solrClient = builder.build();
> return solrClient;
> }
>
> And I use this code for all functionalities, pivot, faceting, queries,
> indexing and so on.
> The exception is intermittent and that is why I think it is related to
> thread-safe issue with the class.
>
> Thanks
> Mikhail
>
> -----Original Message-----
> From: Shawn Heisey [mailto:apa...@elyograg.org]
> Sent: 28 مارس, 2017 04:26 م
> To: solr-user@lucene.apache.org
> Subject: Re: Is CloudSolrClient thread-safe?
>
> On 3/28/2017 8:13 AM, Mikhail Ibraheem wrote:
> > I have a project with solr and spring. I am have only one instance of
> CloudSolrClient at the context (singleton).
> >
> > This is because I believe that it should be only one instance to load
> balance between the nodes.
>
> Yes, the intent is to be fully threadsafe. You should know that
> HttpClient, the class which the SolrClient implementations use under the
> hood, has a default limitation of only allowing two simultaneous
> connections to a given route, which I believe means a host/port combination.
>
> Increasing this is possible, but it must be done by creating a custom
> HttpClient object. Here's some code that I use to build such a client,
> then use that client to create an HttpSolrClient. The same thing can be
> done with CloudSolrClient:
>
> RequestConfig rc = RequestConfig.custom().setConnectTimeout(15000)
> .setSocketTimeout(Const.SOCKET_TIMEOUT).build();
> httpClient = HttpClients.custom().setDefaultRequestConfig(rc)
>
> .setMaxConnPerRoute(300).setMaxConnTotal(5000).disableAutomaticRetries()
> .build();
> client = new HttpSolrClient(serverBaseUrl, httpClient);
>
> > I have big issue which doesn't occur all the times, it is intermittent:
> >
> > java.lang.ClassCastException: java.lang.String cannot be cast to
> > org.apache.solr.common.SolrDocumentList
>
> That is odd. What is the exact version of SolrJ that you are using, and
> the version of the SolrCloud cluster that it is talking to? Can you share
> your SolrJ code?
>
> Thanks,
> Shawn
>
>
