Question

TL; DR - SolrJ连接到SolrCloud或独立Solr实例时应该如何处理连接？

给出Apache SolrJ clint的以下Spring-bean配置：

 <!-- SolrCloud client connector overrides the default standalone Solr instance connector -->
        <bean id="SolrClient" class="org.apache.solr.client.solrj.impl.CloudSolrClient">
            <constructor-arg index="0" value="${solr.zkHosts}"/>
            <property name="defaultCollection" value="${solr.collection}"/>
        </bean>

我从单独的配置类中建立一个SolrClient连接，如下所示：

SolrClient solrClient = config.getSolrClient();
solrClient.ping();

然后我打电话给

finally{
   if(solrClient == null){
       solrClient.close();
   }
}

当我尝试再次调用该方法时，我得到以下异常：

Caused by: org.apache.solr.client.solrj.SolrServerException: java.lang.IllegalStateException: Connection pool shut down
        at org.apache.solr.client.solrj.impl.LBHttpSolrClient.doRequest(LBHttpSolrClient.java:410)
        at org.apache.solr.client.solrj.impl.LBHttpSolrClient.request(LBHttpSolrClient.java:325)
        at org.apache.solr.client.solrj.impl.CloudSolrClient.sendRequest(CloudSolrClient.java:1100)
        at org.apache.solr.client.solrj.impl.CloudSolrClient.requestWithRetryOnStaleState(CloudSolrClient.java:871)
        at org.apache.solr.client.solrj.impl.CloudSolrClient.request(CloudSolrClient.java:807)
        at org.apache.solr.client.solrj.SolrRequest.process(SolrRequest.java:150)
        at org.apache.solr.client.solrj.SolrClient.ping(SolrClient.java:927)

通过阅读SolrJ文档，close（）执行以下操作：

SolrJ 5.4.0 JavaDocs

Closes this stream and releases any system resources associated with it.

似乎在连接上调用close会逐字地关闭线程池，从而阻止将来的连接......使用SolrJ处理与Solr的多个连接的正确方法是什么？

Solr5 + SolrJ：调用SolrClient.close（）会导致线程池关闭

0 个答案: