elasticsearch-resthighlevelclient with scrollapi抛出'suppressed:org.apache.http.contenttoolongception:实体内容太长`

正在获取 100k 使用resthighlevelclient和scroll api实现该方法的文档将出现以下错误。

Suppressed: org.apache.http.ContentTooLongException: entity content is too long

请查找以下错误 RestHighLevelClient

D:\Karthikeyan\ElasticSearch\ElasticSearch_Tesing\target>java -jar ElasticSearch
Utility-1.0.0-SNAPSHOT-jar-with-dependencies.jar
Jul 13, 2018 3:11:59 PM com.es.utility.DocumentIndex main
INFO: Started Indexing the Document.....
ERROR StatusLogger No log4j2 configuration file found. Using default configurati
on: logging only errors to the console. Set system property 'log4j2.debug' to sh
ow Log4j2 internal initialization logging.
Exception in thread "main" java.net.ConnectException: Connection refused: no fur
ther information
        at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
        at sun.nio.ch.SocketChannelImpl.finishConnect(Unknown Source)
        at org.apache.http.impl.nio.reactor.DefaultConnectingIOReactor.processEv
ent(DefaultConnectingIOReactor.java:171)
        at org.apache.http.impl.nio.reactor.DefaultConnectingIOReactor.processEv
ents(DefaultConnectingIOReactor.java:145)
        at org.apache.http.impl.nio.reactor.AbstractMultiworkerIOReactor.execute
(AbstractMultiworkerIOReactor.java:348)
        at org.apache.http.impl.nio.conn.PoolingNHttpClientConnectionManager.exe
cute(PoolingNHttpClientConnectionManager.java:192)
        at org.apache.http.impl.nio.client.CloseableHttpAsyncClientBase$1.run(Cl
oseableHttpAsyncClientBase.java:64)
        at java.lang.Thread.run(Unknown Source)
        Suppressed: org.apache.http.ContentTooLongException: entity content is t
oo long [223328895] for the configured buffer limit [104857600]
                at org.elasticsearch.client.HeapBufferedAsyncResponseConsumer.on
EntityEnclosed(HeapBufferedAsyncResponseConsumer.java:76)
                at org.apache.http.nio.protocol.AbstractAsyncResponseConsumer.re    final Scroll scroll = new Scroll(TimeValue.timeValueMinutes(1L)); //part of Scroll API
    searchRequest.scroll(scroll); //part of Scroll API
sponseReceived(AbstractAsyncResponseConsumer.java:131)
                at org.apache.http.impl.nio.client.MainClientExec.responseReceiv
ed(MainClientExec.java:315)
                at org.apache.http.impl.nio.client.DefaultClientExchangeHandlerI
mpl.responseReceived(DefaultClientExchangeHandlerImpl.java:147)
                at org.apache.http.nio.protocol.HttpAsyncRequestExecutor.respons
eReceived(HttpAsyncRequestExecutor.java:303)
                at org.apache.http.impl.nio.DefaultNHttpClientConnection.consume
Input(DefaultNHttpClientConnection.java:255)
                at org.apache.http.impl.nio.client.InternalIODispatch.onInputRea
dy(InternalIODispatch.java:81)
                at org.apache.http.impl.nio.client.InternalIODispatch.onInputRea
dy(InternalIODispatch.java:39)
                at org.apache.http.impl.nio.reactor.AbstractIODispatch.inputRead
y(AbstractIODispatch.java:114)
                at org.apache.http.impl.nio.reactor.BaseIOReactor.readable(BaseI
OReactor.java:162)
                at org.apache.http.impl.nio.reactor.AbstractIOReactor.processEve
nt(AbstractIOReactor.java:337)
                at org.apache.http.impl.nio.reactor.AbstractIOReactor.processEve
nts(AbstractIOReactor.java:315)
                at org.apache.http.impl.nio.reactor.AbstractIOReactor.execute(Ab
stractIOReactor.java:276)
                at org.apache.http.impl.nio.reactor.BaseIOReactor.execute(BaseIO
Reactor.java:104)
                at org.apache.http.impl.nio.reactor.AbstractMultiworkerIOReactor
$Worker.run(AbstractMultiworkerIOReactor.java:588)
                ... 1 more

所以,我试着用 RestClient 而不是 restHighLevelClient公司 通过设置缓冲区大小 static long BUFFER_SIZE = 500 * 1024 * 1024;

但是使用 restclient公司 不知道怎么用 ScrollAPI 是的。因为,我得去 10万 索引中的文档。

请找到我的 restHighLevelClient公司 代码

public class DocumentIndexRestHighLevelClient {

    private final static String INDEX = "documents";  
    private final static String ATTACHMENT = "document_attachment"; 
    private final static String TYPE = "doc";
    private static final Logger logger = Logger.getLogger(Thread.currentThread().getStackTrace()[0].getClassName());

    public static void main(String args[]) throws IOException {


        RestHighLevelClient restHighLevelClient = null;
        Document doc=new Document();

        logger.info("Started Indexing the Document.....");

        try {
            restHighLevelClient = new RestHighLevelClient(RestClient.builder(new HttpHost("localhost", 9200, "http"),
                    new HttpHost("localhost", 9201, "http")));
        } catch (Exception e) {
            System.out.println(e.getMessage());
        }


        //Fetching Id, FilePath & FileName from Document Index. 
        SearchRequest searchRequest = new SearchRequest(INDEX); 
        searchRequest.types(TYPE);
        final Scroll scroll = new Scroll(TimeValue.timeValueMinutes(1L)); //part of Scroll API
        searchRequest.scroll(scroll); //part of Scroll API
        SearchSourceBuilder searchSourceBuilder = new SearchSourceBuilder();
        QueryBuilder qb = QueryBuilders.matchAllQuery();
        searchSourceBuilder.query(qb);
        searchSourceBuilder.size(120000); 
        searchRequest.source(searchSourceBuilder);

        SearchResponse searchResponse = restHighLevelClient.search(searchRequest);
        String scrollId = searchResponse.getScrollId(); //part of Scroll API
        SearchHit[] searchHits = searchResponse.getHits().getHits();
        long totalHits=searchResponse.getHits().totalHits;
        logger.info("Total Hits --->"+totalHits);

        //part of Scroll API -- Starts
        while (searchHits != null && searchHits.length > 0) { 
            SearchScrollRequest scrollRequest = new SearchScrollRequest(scrollId); 
            scrollRequest.scroll(scroll);
            searchResponse = restHighLevelClient.searchScroll(scrollRequest);
            scrollId = searchResponse.getScrollId();
            searchHits = searchResponse.getHits().getHits();

            File all_files_path = new File("d:\\All_Files_Path.txt");
            File available_files = new File("d:\\Available_Files.txt");
            File missing_files = new File("d:\\Missing_Files.txt");

            int totalFilePath=1;
            int totalAvailableFile=1;
            int missingFilecount=1;

            Map<String, Object> jsonMap ;
            for (SearchHit hit : searchHits) {

                String encodedfile = null;
                File file=null;

                Map<String, Object> sourceAsMap = hit.getSourceAsMap();


                if(sourceAsMap != null) {  
                    doc.setId((int) sourceAsMap.get("id"));
                    doc.setApp_language(String.valueOf(sourceAsMap.get("app_language")));

                }

                String filepath=doc.getPath().concat(doc.getFilename());

                logger.info("ID---> "+doc.getId()+"File Path --->"+filepath);


                try(PrintWriter out = new PrintWriter(new FileOutputStream(all_files_path, true))  ){
                    out.println("FilePath Count ---"+totalFilePath+":::::::ID---> "+doc.getId()+"File Path --->"+filepath);
                }

                file = new File(filepath);
                if(file.exists() && !file.isDirectory()) {
                    try {
                          try(PrintWriter out = new PrintWriter(new FileOutputStream(available_files, true))  ){
                                out.println("Available File Count --->"+totalAvailableFile+":::::::ID---> "+doc.getId()+"File Path --->"+filepath);
                                totalAvailableFile++;
                            }
                        FileInputStream fileInputStreamReader = new FileInputStream(file);
                        byte[] bytes = new byte[(int) file.length()];
                        fileInputStreamReader.read(bytes);
                        encodedfile = new String(Base64.getEncoder().encodeToString(bytes));
                        fileInputStreamReader.close();
                    } catch (FileNotFoundException e) {
                        e.printStackTrace();
                    }
                }
                else
                {
                    System.out.println("Else block");
                    PrintWriter out = new PrintWriter(new FileOutputStream(missing_files, true));
                    out.println("Available File Count --->"+missingFilecount+":::::::ID---> "+doc.getId()+"File Path --->"+filepath);
                    out.close();
                    missingFilecount++;
                }

                jsonMap = new HashMap<>();
                jsonMap.put("id", doc.getId());
                jsonMap.put("app_language", doc.getApp_language());
                jsonMap.put("fileContent", encodedfile);

                String id=Long.toString(doc.getId());

                IndexRequest request = new IndexRequest(ATTACHMENT, "doc", id )
                        .source(jsonMap)
                        .setPipeline(ATTACHMENT);

                PrintStream printStream = new PrintStream(new File("d:\\exception.txt"));
                try {
                    IndexResponse response = restHighLevelClient.index(request);

                } catch(ElasticsearchException e) {
                    if (e.status() == RestStatus.CONFLICT) {
                    }
                    e.printStackTrace(printStream);
                }

                totalFilePath++;
            }
        }

        ClearScrollRequest clearScrollRequest = new ClearScrollRequest(); 
        clearScrollRequest.addScrollId(scrollId);
        ClearScrollResponse clearScrollResponse = restHighLevelClient.clearScroll(clearScrollRequest);
        boolean succeeded = clearScrollResponse.isSucceeded();
        ////part of Scroll API -- Ends
        logger.info("Indexing done.....");
    }

}