func crawl(url string, sourceURL string) {
	if strings.Contains(url, "/devel/release") {
		return
	}
	mu.Lock()
	defer mu.Unlock()
	if u, frag, ok := strings.Cut(url, "#"); ok {
		url = u
		if frag != "" {
			uf := urlFrag{url, frag}
			neededFrags[uf] = append(neededFrags[uf], sourceURL)
		}
	}
	if crawled[url] {
		return
	}
	crawled[url] = true

	wg.Add(1)
	go func() {

                    // crawl web
                    writeTimeToSessionInfo(crawlingInfoHelper, Constants.WEB_FS_CRAWLER_START_TIME);
                    webFsIndexHelper.crawl(options.sessionId, webConfigIdList, fileConfigIdList);
                    writeTimeToSessionInfo(crawlingInfoHelper, Constants.WEB_FS_CRAWLER_END_TIME);
                }, WEB_FS_CRAWLING_PROCESS);

/*
 [Crawler Notification]
 Crawler notification mail.
*/
subject: [FESS] Crawler completed: /*pmb.hostname*/
>>>
--- Server Info ---
Host Name: /*pmb.hostname:orElse('Unknown')*/
Job Name: /*pmb.jobname:orElse('Unknown')*/

--- Web/FileSystem Crawler ---
Start Time: /*pmb.webFsCrawlStartTime:orElse('-')*/
End Time:   /*pmb.webFsCrawlEndTime:orElse('-')*/
Exec Time:  /*pmb.webFsCrawlExecTime:orElse('-')*/ ms

--- Web/FileSystem Indexer ---

      System.out.println("Usage: Crawler <cache dir> <root>");
      return;
    }

    int threadCount = 20;
    long cacheByteCount = 1024L * 1024L * 100L;

    Cache cache = new Cache(new File(args[0]), cacheByteCount);
    OkHttpClient client = new OkHttpClient.Builder()
        .cache(cache)
        .build();

    Crawler crawler = new Crawler(client);
    crawler.queue.add(HttpUrl.get(args[1]));

and left off when they liked, so that it was not easy to know
when the race was over.  However, when they had been running half
an hour or so, and were quite dry again, the Dodo suddenly called
out `The race is over!' and they all crowded round it, panting,
and asking, `But who has won?'

  This question the Dodo could not answer without a great deal of
thought, and it sat for a long time with one finger pressed upon

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE components PUBLIC "-//DBFLUTE//DTD LastaDi 1.0//EN" 
	"http://dbflute.org/meta/lastadi10.dtd">
<components namespace="fessCrawler">
	<!-- Crawler Thread -->
	<component name="crawlerThread" class="org.codelibs.fess.crawler.FessCrawlerThread" instance="prototype" >
	</component>

	"http://dbflute.org/meta/lastadi10.dtd">
<components namespace="fessCrawler">
	<component name="crawlerConfig" class="org.codelibs.fess.crawler.util.FessCrawlerConfig">
		<property name="queueIndex">"fess_crawler.queue"</property>
		<property name="queueShards">5</property>
		<property name="queueReplicas">1</property>
		<property name="dataIndex">"fess_crawler.data"</property>
		<property name="dataShards">5</property>

and left off when they liked, so that it was not easy to know
when the race was over.  However, when they had been running half
an hour or so, and were quite dry again, the Dodo suddenly called
out `The race is over!' and they all crowded round it, panting,
and asking, `But who has won?'

  This question the Dodo could not answer without a great deal of
thought, and it sat for a long time with one finger pressed upon

labels.crawling_info_thread_dump=Thread-Dump
labels.crawling_info_CrawlerStartTime=Crawler Startzeit
labels.crawling_info_CrawlerEndTime=Crawler Endzeit
labels.crawling_info_CrawlerExecTime=Crawler Ausführungsdauer
labels.crawling_info_CrawlerStatus=Crawler-Status
labels.crawling_info_WebFsCrawlExecTime=Crawl Ausführungsdauer (Web/Dateisystem)
labels.crawling_info_WebFsCrawlStartTime=Crawl Startzeit (Web/Dateisystem)

labels.crawling_info_thread_dump=Thread Dump
labels.crawling_info_CrawlerStartTime=Crawler start time
labels.crawling_info_CrawlerEndTime=Crawler end time
labels.crawling_info_CrawlerExecTime=Crawler exec time
labels.crawling_info_CrawlerStatus=Crawler status
labels.crawling_info_WebFsCrawlExecTime=Crawl exec time (Web/File system)
labels.crawling_info_WebFsCrawlStartTime=Crawl start time (Web/File system)