如何使用 Java 在 Solr 中获取索引大小

How to get the Index Size in Solr using Java

提问by arsenal

I need to get total size of an index in Apache Solr using Java. The following code gets the total number of documents but I am looking for the size. And with the use of ReplicationHandler I was thinking that I can get the index size as told by someone here on this link.. http://lucene.472066.n3.nabble.com/cheking-the-size-of-the-index-using-solrj-API-s-td692686.htmlbut I am not getting the index size.

我需要使用 Java 在 Apache Solr 中获取索引的总大小。以下代码获取文档总数，但我正在寻找大小。通过使用 ReplicationHandler 我想我可以得到这个链接上有人告诉我的索引大小.. http://lucene.472066.n3.nabble.com/cheking-the-size-of-the- index-using-solrj-API-s-td692686.html但我没有得到索引大小。

BufferedWriter out1 = null;
        FileWriter fstream1 = new FileWriter("src/test/resources/solr-document-id-desc.txt");
        out1 = new BufferedWriter(fstream1);
        ApplicationContext context = null;
        context = new ClassPathXmlApplicationContext("application-context.xml");
        CommonsHttpSolrServer solrServer = (CommonsHttpSolrServer) context.getBean("solrServer");
        SolrQuery solrQuery = new SolrQuery().setQuery("*:*");

      QueryResponse rsp = solrServer.query(solrQuery);

        //I am trying to use replicationhandler but I am not able to get the index size using statistics. Is there any way to get the index size..?                        
       ReplicationHandler handler2 = new ReplicationHandler();
       System.out.println( handler2.getDescription()); 

       NamedList statistics = handler2.getStatistics();
       System.out.println("Statistics   "+ statistics); 
       System.out.println(rsp.getResults().getNumFound());

      Iterator<SolrDocument> iter = rsp.getResults().iterator();

      while (iter.hasNext()) {
                      SolrDocument resultDoc = iter.next();        
                      System.out.println(resultDoc.getFieldNames());
                      String id = (String) resultDoc.getFieldValue("numFound");
                      String description = (String) resultDoc.getFieldValue("description");
                      System.out.println(id+"~~"+description);
                      out1.write(id+"~~"+description);
                      out1.newLine();
      }
      out1.close();

    Any suggestions will be appreciated..

Update Code:-

更新代码：-

ReplicationHandler handler2 = new ReplicationHandler();
System.out.println( handler2.getDescription()); 
 NamedList statistics = handler2.getStatistics();
 System.out.println("Statistics   "+ statistics.get("indexSize")); 

回答by Jayendra

The indexsize is available with the statistics in ReplicationHandler

索引大小可与ReplicationHandler 中的统计信息一起使用

org.apache.solr.handler.ReplicationHandler

code

代码

  public NamedList getStatistics() {
    NamedList list = super.getStatistics();
    if (core != null) {
      list.add("indexSize", NumberUtils.readableSize(getIndexSize()));
    }
  }

You can use the URL http://localhost:8983/solr/replication?command=details, which returns the index size.

您可以使用 URL http://localhost:8983/solr/replication?command=details，它返回索引大小。

<lst name="details">
  <str name="indexSize">26.13 KB</str>
  .....
</lst>

Not sure if it works with the instantiation of ReplicationHandler, as it would need the reference of the core and the index.

不确定它是否适用于 ReplicationHandler 的实例化，因为它需要核心和索引的引用。

回答by ankit

You can use the command in the data directory

可以使用数据目录下的命令

  - du -kx

回答by jeorfevre

as said in this postyou can use MAT toolin order to see the memory consumption. I think that you could use in your code. Enjoy solr!

正如这篇文章中所说，您可以使用MAT 工具来查看内存消耗。我认为你可以在你的代码中使用。享受索尔！