Exemplo n.º 1
0
// OnlyMapper.Map
func (pc *PersonCrawler) Map(key, val sophie.SophieWriter,
	c []sophie.Collector) error {
	if time.Now().After(AppStopTime) {
		log.Printf("[Part %d] Timeout(key = %v), PersonCrawler returns EOM", pc.part, key)
		return mr.EOM
	}

	id := string(*key.(*sophie.RawString))
	// ent := val.(*gcse.CrawlingEntry)
	log.Printf("[Part %d] Crawling person %v\n", pc.part, id)

	p, err := gcse.CrawlPerson(pc.httpClient, id)
	if err != nil {
		pc.failCount++
		log.Printf("[Part %d] Crawling person %s failed: %v", pc.part, id, err)

		cDB.SchedulePerson(id, time.Now().Add(12*time.Hour))

		if pc.failCount >= 10 || strings.Contains(err.Error(), "403") {
			durToSleep := 10 * time.Minute
			if time.Now().Add(durToSleep).After(AppStopTime) {
				log.Printf("[Part %d] Timeout(key = %v), PersonCrawler returns EOM", pc.part, key)
				return mr.EOM
			}

			log.Printf("[Part %d] Last ten crawling persons failed, sleep for a while...(current: %s)",
				pc.part, id)
			time.Sleep(durToSleep)
			pc.failCount = 0
		}
		return nil
	}

	log.Printf("[Part %d] Crawled person %s success!", pc.part, id)
	pushPerson(p)
	log.Printf("[Part %d] Push person %s success", pc.part, id)
	pc.failCount = 0

	time.Sleep(10 * time.Second)

	return nil
}
Exemplo n.º 2
0
func crawlEntriesLoop() {
	httpClient := gcse.GenHttpClient("")

	for time.Now().Before(AppStopTime) {
		checkImports()

		if gcse.CrawlByGodocApi {
			processGodoc(httpClient)
		}

		didSomething := false
		var wg sync.WaitGroup

		pkgGroups := listPackagesByHost(5, 50)
		if len(pkgGroups) > 0 {
			didSomething = true

			log.Printf("Crawling packages of %d groups", len(pkgGroups))

			wg.Add(len(pkgGroups))

			for host, ents := range pkgGroups {
				go func(host string, ents []EntryInfo) {
					failCount := 0
					for _, ent := range ents {
						if time.Now().After(AppStopTime) {
							break
						}
						runtime.GC()
						p, err := gcse.CrawlPackage(httpClient, ent.ID, ent.Etag)
						if err != nil && err != gcse.ErrPackageNotModifed {
							log.Printf("Crawling pkg %s failed: %v", ent.ID, err)

							if gcse.IsBadPackage(err) {
								// a wrong path
								deletePackage(ent.ID)
								log.Printf("Remove wrong package %s", ent.ID)
							} else {
								failCount++

								schedulePackage(ent.ID, time.Now().Add(
									12*time.Hour), ent.Etag)

								if failCount >= 10 {
									durToSleep := 10 * time.Minute
									if time.Now().Add(durToSleep).After(AppStopTime) {
										break
									}

									log.Printf("Last ten crawling %s packages failed, sleep for a while...",
										host)
									time.Sleep(durToSleep)
									failCount = 0
								}
							}
							continue
						}

						failCount = 0
						if err == gcse.ErrPackageNotModifed {
							log.Printf("Package %s unchanged!", ent.ID)
							schedulePackageNextCrawl(ent.ID, ent.Etag)
							continue
						}

						log.Printf("Crawled package %s success!", ent.ID)

						pushPackage(p)
						log.Printf("Package %s saved!", ent.ID)
					}

					wg.Done()
				}(host, ents)
			}
		}

		personGroups := listPersonsByHost(5, 100)
		if len(personGroups) > 0 {
			didSomething = true

			log.Printf("Crawling persons of %d groups", len(personGroups))

			wg.Add(len(personGroups))

			for host, ents := range personGroups {
				go func(host string, ents []EntryInfo) {
					failCount := 0
					for _, ent := range ents {
						if time.Now().After(AppStopTime) {
							break
						}

						p, err := gcse.CrawlPerson(httpClient, ent.ID)
						if err != nil {
							failCount++
							log.Printf("Crawling person %s failed: %v", ent.ID, err)

							schedulePerson(ent.ID, time.Now().Add(12*time.Hour))

							if failCount >= 10 {
								durToSleep := 10 * time.Minute
								if time.Now().Add(durToSleep).After(AppStopTime) {
									break
								}

								log.Printf("Last ten crawling %s persons failed, sleep for a while...",
									host)
								time.Sleep(durToSleep)
								failCount = 0
							}
							continue
						}

						log.Printf("Crawled person %s success!", ent.ID)
						pushPerson(p)
						log.Printf("Push person %s success", ent.ID)
						failCount = 0
					}

					wg.Done()
				}(host, ents)
			}
		}
		wg.Wait()

		syncDatabases()

		if gcse.CrawlGithubUpdate {
			if touchByGithubUpdates() {
				didSomething = true
			}
		}

		if !didSomething {
			log.Printf("Nothing to crawl sleep for a while...")
			time.Sleep(2 * time.Minute)
		}
	}
}
Exemplo n.º 3
0
func main() {
	runtime.GOMAXPROCS(2)

	log.Printf("Using personal: %v", configs.CrawlerGithubPersonal)
	gcse.GithubSpider = github.NewSpiderWithToken(configs.CrawlerGithubPersonal)

	if db, err := bh.Open(configs.DataRoot.Join("filecache.bolt").S(), 0644, nil); err == nil {
		log.Print("Using file cache!")
		gcse.GithubSpider.FileCache = spider.BoltFileCache{
			DB:         db,
			IncCounter: bi.Inc,
		}
	} else {
		log.Printf("Open file cache failed: %v", err)
	}

	cleanTempDir()
	defer cleanTempDir()

	singlePackage := flag.String("pkg", "", "Crawling a single package")
	singleETag := flag.String("etag", "", "ETag for the single package crawling")
	singlePerson := flag.String("person", "", "Crawling a single person")

	flag.Parse()

	httpClient := gcse.GenHttpClient("")

	if *singlePerson != "" {
		log.Printf("Crawling single person %s ...", *singlePerson)
		p, err := gcse.CrawlPerson(httpClient, *singlePerson)
		if err != nil {
			fmtp.Printfln("Crawling person %s failed: %v", *singlePerson, err)
		} else {
			fmtp.Printfln("Person %s: %+v", *singlePerson, p)
		}
	}
	if *singlePackage != "" {
		log.Printf("Crawling single package %s ...", *singlePackage)
		p, flds, err := gcse.CrawlPackage(httpClient, *singlePackage, *singleETag)
		if err != nil {
			fmtp.Printfln("Crawling package %s failed: %v, folders: %v", *singlePackage, err, flds)
		} else {
			fmtp.Printfln("Package %s: %+v, folders: %v", *singlePackage, p, flds)
		}
	}
	if *singlePackage != "" || *singlePerson != "" {
		return
	}

	log.Println("crawler started...")

	// Load CrawlerDB
	cDB = gcse.LoadCrawlerDB()

	fpDataRoot := sophie.FsPath{
		Fs:   sophie.LocalFS,
		Path: configs.DataRoot.S(),
	}

	fpDocs := fpDataRoot.Join(configs.FnDocs)
	if err := loadAllDocsPkgs(kv.DirInput(fpDocs)); err != nil {
		log.Fatalf("loadAllDocsPkgs: %v", err)
	}
	log.Printf("%d docs loaded!", len(allDocsPkgs))

	AppStopTime = time.Now().Add(configs.CrawlerDuePerRun)

	//pathToCrawl := gcse.DataRoot.Join(gcse.FnToCrawl)
	fpCrawler := fpDataRoot.Join(configs.FnCrawlerDB)
	fpToCrawl := fpDataRoot.Join(configs.FnToCrawl)

	fpNewDocs := fpCrawler.Join(configs.FnNewDocs)
	fpNewDocs.Remove()

	if err := processImports(); err != nil {
		log.Printf("processImports failed: %v", err)
	}

	pkgEnd := make(chan error, 1)
	go crawlPackages(httpClient, fpToCrawl.Join(configs.FnPackage), fpNewDocs, pkgEnd)

	psnEnd := make(chan error, 1)
	go crawlPersons(httpClient, fpToCrawl.Join(configs.FnPerson), psnEnd)

	errPkg, errPsn := <-pkgEnd, <-psnEnd
	bi.Flush()
	bi.Process()
	syncDatabases()
	if errPkg != nil || errPsn != nil {
		log.Fatalf("Some job may failed, package: %v, person: %v", errPkg, errPsn)
	}
	log.Println("crawler stopped...")
}