我制作了一个java控制台应用程序来查询solr。这些查询非常密集，因为有些查询是按id进行的（同一个查询中大约有500个id），有些查询是按文本属性进行的。这个应用程序是多线程的，当我在一个线程中运行它时，我没有错误，但是当我设置多线程时，在运行一段时间后，我开始得到以下错误：

org.apache.solr.client.solrj.SolrServerException: IOException occured when talking to server at: http://xxx.xxx.xx.xxx:8983/solr/xx
        at org.apache.solr.client.solrj.impl.HttpSolrClient.executeMethod(HttpSolrClient.java:624)
        at org.apache.solr.client.solrj.impl.HttpSolrClient.request(HttpSolrClient.java:279)
        at org.apache.solr.client.solrj.impl.HttpSolrClient.request(HttpSolrClient.java:268)
        at org.apache.solr.client.solrj.SolrRequest.process(SolrRequest.java:149)
        at org.apache.solr.client.solrj.SolrClient.query(SolrClient.java:942)
        at org.apache.solr.client.solrj.SolrClient.query(SolrClient.java:957)
        at org.example.ProcessFile.getByPropertyFromSolr(ProcessFile.java:570)
        at org.example.ProcessFile.processLinesBulk(ProcessFile.java:226)
        at org.example.ProcessFile.importItemsInFile(ProcessFile.java:117)
        at org.example.ProcessFile.call(ProcessFile.java:97)
        at org.example.ProcessFile.call(ProcessFile.java:56)
        at java.util.concurrent.FutureTask.run(FutureTask.java:266)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
        at java.lang.Thread.run(Thread.java:748)
Caused by: java.net.NoRouteToHostException: Cannot assign requested address (Address not available)
        at java.net.PlainSocketImpl.socketConnect(Native Method)
        at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)
        at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)
        at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)
        at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
        at java.net.Socket.connect(Socket.java:589)
        at org.apache.http.conn.scheme.PlainSocketFactory.connectSocket(PlainSocketFactory.java:121)
        at org.apache.http.impl.conn.DefaultClientConnectionOperator.openConnection(DefaultClientConnectionOperator.java:180)
        at org.apache.http.impl.conn.ManagedClientConnectionImpl.open(ManagedClientConnectionImpl.java:326)
        at org.apache.http.impl.client.DefaultRequestDirector.tryConnect(DefaultRequestDirector.java:605)
        at org.apache.http.impl.client.DefaultRequestDirector.execute(DefaultRequestDirector.java:440)
        at org.apache.http.impl.client.AbstractHttpClient.doExecute(AbstractHttpClient.java:835)
        at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:83)
        at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:56)
        at org.apache.solr.client.solrj.impl.HttpSolrClient.executeMethod(HttpSolrClient.java:515)

这是我的maven依赖：

<dependency>
  <groupId>org.apache.solr</groupId>
  <artifactId>solr-solrj</artifactId>
  <version>6.4.0</version>
</dependency>

这是抛出错误的函数：

private SolrDocument getByPropertyFromSolr(String property, String value){

    String urlString = dotenv.get("GAIMP_SOLR_URL");
    HttpSolrClient solr = new HttpSolrClient.Builder(urlString).build();
    solr.setParser(new XMLResponseParser());

    try {

        SolrQuery query = new SolrQuery();
        query.set("q", property + ":\"" + ClientUtils.escapeQueryChars(value) + "\"");
        query.setStart(0);
        query.setRows(1);
        QueryResponse response = solr.query(query);
        SolrDocumentList results = response.getResults();

        if (results.size() > 0) {
            return results.get(0);
        }

    } catch (SolrServerException e) {
        e.printStackTrace();
    } catch (IOException e) {
        e.printStackTrace();
    }
    finally {
        try {
            solr.close();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }

    return null;
}

知道在单线程中我没有这个问题，我相信这是因为solr服务器需要很长时间来响应一个请求，而另一个线程正在触发另一个查询。
有什么提示让我没有这个错误吗？我可以将solrclient设置为等待服务器响应而不是抛出错误吗？