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Software-GesundheitsberichtSchema 0.15.0 · Metriken 1.13.0 · 2026-07-20 12:45 UTC

zhisheng17 / flink-learning

flink learning blog. http://www.54tianzhisheng.cn/ 含 Flink 入门、概念、原理、实战、性能调优、源码解析等内容。涉及 Flink Connector、Metrics、Library、DataStream API、Table API & SQL 等内容的学习案例,还有 Flink 落地应用的大型项目案例(PVUV、日志存储、百亿数据实时去重、监控告警)分享。欢迎大家支持我的专栏《大数据实时计算引擎 Flink 实战与性能优化》

JavaApache-2.0★ 15.081 Sterne⑂ 3.941 Forksseit Jan. 2019Auf GitHub ansehen ↗

zhisheng17/flink-learning erreicht einen Gesundheitsindex von 43 von 100 und liegt damit im Bereich Gefährdet. Am stärksten schneidet es bei Community & Adoption (77/100) ab, am schwächsten bei Vitality (21/100). Zuletzt vor 74 Tagen aktualisiert. Ein einzelner Mitwirkender trägt den Großteil der jüngsten Arbeit.

43
gesamt / 100
Gefährdet

Software-Gesundheitsindex

Metriken werden auf einer Skala von 1–100 in gewichtete Kategorien gruppiert. Der Gesamtwert beginnt als ihr Mittel; sobald öffentliche Evidenz die Richtlinie für Hochrisikojurisdiktionen auslöst, wird die Bewertung angepasst und erhält die Obergrenze 49 (Gefährdet). AI Readiness liegt außerhalb.

43
Exzellent85-100Vorbildlich; erfüllt im Wesentlichen alle geprüften Kriterien
Gut70-84Gesund; geringfügige Lücken
Mittel50-69Akzeptabel mit deutlichen Lücken; Überprüfung empfohlen
Gefährdet30-49Erhebliche Schwächen; eine Übernahme erfordert Vorsicht
Kritisch1-29Schwerwiegende Probleme (aufgegeben, nur ein Maintainer, keine Hygiene)
VitalitätCommunity &VerbreitungNachhaltigkeit &GovernanceEngineering-QualitätSicherheitAI Readiness

Bewertungsprofil

Jede Achse ist eine Kategorie. Die Form zählt mehr als der Durchschnitt — ein gesundes Projekt füllt die gesamte Fläche, während ein Profil aus Spitzen und Kratern bedeutet, dass Stärke in einer Dimension Risiken in einer anderen verdeckt.

Eigentümerschaft

zhishengPersönliches Konto
1.471 Follower28 öffentliche Reposseit Dez. 2014

Dieses Repository gehört einem persönlichen Konto. Ein Projekt mit nur einem Eigentümer trägt ein höheres Kontinuitätsrisiko als ein organisationsgetragenes.

Metriken nach Kategorie

Vitalität

Lebt das Projekt — wird Code geschrieben und werden Releases ausgeliefert?

21Kritisch · 22 % des Gesamtindex
Wie die Bewertung erfolgt
18/36Push-Aktualität — letzter Push vor 74 Tagen
1.4/36Commit-Rhythmus — 2/52 Wochen mit Commits
15.3/18Commit-Volumen — 49 Commits im letzten Jahr
0/10OpenSSF Scorecard: Maintained — 0 commit(s) and 0 issue activity found in the last 90 days -- score normalized to 0
Verwendete Eingangsdaten
commits_last_year49
human_commit_share
days_since_last_push74
active_weeks_last_year2
Wie die Bewertung erfolgt
0/27Liefert Releases aus — keine Releases veröffentlicht
0/36Release-Aktualität — keine Releases
0/27Release-Rhythmus — keine Releases
0/10OpenSSF Scorecard: Signed-Releases — keine Daten
Verwendete Eingangsdaten
releases_count0
Von der Bewertung ausgeschlossen (keine Daten oder nicht anwendbar): OpenSSF Scorecard: Signed-Releases. Die verbleibenden Gewichte wurden renormalisiert.

Community & Verbreitung

Hat das Projekt Nutzer, Downloads, Aufmerksamkeit und ein einladendes Umfeld für Beitragende?

77Gut · 18 % des Gesamtindex
Wie die Bewertung erfolgt
60/60Stars — 15.081 Stars
25/25Forks — 3.941 Forks
15/15Watcher — 503 Watcher
Verwendete Eingangsdaten
forks3.941
stars15.081
watchers503
growth_stateunverified
growth_factor_pct100
growth_unverified_reasonno_history
Wie die Bewertung erfolgt
22.5/22.5README
22.5/22.5Lizenz — anerkannte Lizenz (Apache-2.0)
0/18CONTRIBUTING-Leitfaden
0/13.5Verhaltenskodex
0/7.2Issue-Vorlage
0/6.3PR-Vorlage
Verwendete Eingangsdaten
has_readmeja
has_licenseja
has_contributingnein
has_issue_templatenein
has_code_of_conductnein
has_pull_request_templatenein

Nachhaltigkeit & Governance

Überdauert das Projekt die Menschen, die es tragen — Bus-Faktor, Reaktionsfähigkeit, Trägerschaft und Paketpflege?

45Gefährdet · 24 % des Gesamtindex
Wie die Bewertung erfolgt
9/54Bus-Faktor — 1 Beitragende decken die Hälfte aller Commits ab
2.9/22.5Commit-Verteilung — wichtigste beitragende Person verfasste 87 % der Commits
9.5/13.5Breite der Beitragenden — 7 Beitragende
10/10OpenSSF Scorecard: Contributors — project has 3 contributing companies or organizations -- score normalized to 10
Verwendete Eingangsdaten
bus_factor1
contributors_sampled7
top_contributor_share0,871
Wie die Bewertung erfolgt
0/46.8Issue-Lösungsquote — keine Issues oder keine Daten
14.5/38.3PR-Annahme — 31/82 entschiedene PRs gemergt
0/15OpenSSF Scorecard: Code-Review — keine Daten
Verwendete Eingangsdaten
merged_prs31
open_issues0
closed_issues0
issue_closed_ratio
closed_unmerged_prs51
Von der Bewertung ausgeschlossen (keine Daten oder nicht anwendbar): Issue-Lösungsquote, OpenSSF Scorecard: Code-Review. Die verbleibenden Gewichte wurden renormalisiert.
Wie die Bewertung erfolgt
10/30Organisatorische Trägerschaft — persönliches (Nutzer-)Konto
0/20Verifizierte Domain — für Nutzerkonten nicht anwendbar
22.8/25Reichweite des Inhabers — 1.471 Follower von zhisheng17
22.6/25Kontohistorie — 28 öffentliche Repos, Kontoalter ca. 11 Jahre
Verwendete Eingangsdaten
followers1.471
owner_typeUser
is_verified
owner_loginzhisheng17
public_repos28
account_age_days4.245
Von der Bewertung ausgeschlossen (keine Daten oder nicht anwendbar): Verifizierte Domain. Die verbleibenden Gewichte wurden renormalisiert.

Engineering-Qualität

Sind grundlegende Engineering- und Dokumentationspraktiken vorhanden?

44Gefährdet · 20 % des Gesamtindex
Wie die Bewertung erfolgt
0/24CI-Workflows
24/24Tests vorhanden
0/16Linter-Konfiguration
0/9.6Pre-Commit-Hooks
0/6.4.editorconfig
0/20OpenSSF Scorecard: CI-Tests — 0 out of 9 merged PRs checked by a CI test -- score normalized to 0
Verwendete Eingangsdaten
has_cinein
has_testsja
has_editorconfignein
has_linter_confignein
has_precommit_confignein
Wie die Bewertung erfolgt
30/30README
0/25Dokumentationsverzeichnis
15/15Dokumentations-/Homepage-Site — http://www.54tianzhisheng.cn/tags/Flink/
10/10Repository-Beschreibung
10/10Topics — 15 Topics
10/10Wiki
Verwendete Eingangsdaten
topicsflink, kafka, elasticsearch, spark, redis, mysql, rocketmq, hbase, rabbitmq, stream-processing, streaming, clickhouse, loki, influxdb, opentsdb
has_wikija
homepagehttp://www.54tianzhisheng.cn/tags/Flink/
has_readmeja
has_docs_dirnein
has_descriptionja

Sicherheit

Sind die sichtbaren Sicherheits- und Lieferkettenpraktiken belastbar, ohne ungeklärte Exposition gegenüber Hochrisikojurisdiktionen?

30Gefährdet · 16 % des Gesamtindex

Sicherheitslage

30Gefährdet
Wie die Bewertung erfolgt
7.5/7.5Binary-Artifacts — no binaries found in the repo
0/7.5Branch-Protection — branch protection not enabled on development/release branches
0/2.5CI-Tests — 0 out of 9 merged PRs checked by a CI test -- score normalized to 0
0/2.5CII-Best-Practices — no effort to earn an OpenSSF best practices badge detected
0/7.5Code-Review — keine Daten
2.5/2.5Contributors — project has 3 contributing companies or organizations -- score normalized to 10
0/10Dangerous-Workflow — keine Daten
7.5/7.5Dependency-Update-Tool — update tool detected
0/5Fuzzing — project is not fuzzed
2.5/2.5Lizenz — license file detected
0/7.5Maintained — 0 commit(s) and 0 issue activity found in the last 90 days -- score normalized to 0
0/5Packaging — keine Daten
0/5Pinned-Dependencies — dependency not pinned by hash detected -- score normalized to 0
0/5SAST — SAST tool is not run on all commits -- score normalized to 0
0/5Security-Policy — security policy file not detected
0/7.5Signed-Releases — keine Daten
0/7.5Token-Permissions — keine Daten
0/7.5Vulnerabilities — 117 existing vulnerabilities detected
Verwendete Eingangsdaten
sourceopenssf_scorecard
checks_evaluated13
scorecard_versionv5.5.0
checks_inconclusive5
scorecard_aggregate3
Von der Bewertung ausgeschlossen (keine Daten oder nicht anwendbar): code_review, dangerous_workflow, packaging, signed_releases, token_permissions. Die verbleibenden Gewichte wurden renormalisiert.

AI Readiness

Wie gut ist das Repository dafür ausgestattet, mit KI-Coding-Agenten entwickelt und gepflegt zu werden? Ein unabhängiges, experimentelles Badge — Gewicht 0,0, es wird eigenständig ausgewiesen und verändert den Gesamt-Gesundheitswert nicht.

37Gefährdet · 0 % des Gesamtindex
Wie die Bewertung erfolgt
0/45Agentenanweisungen — keine CLAUDE.md / AGENTS.md / Editor-Regeln
0/15Maschinenlesbare Doku (llms.txt)
0/40Lesbare Commit-Historie — keine Daten
Verwendete Eingangsdaten
has_llms_txtnein
legible_history_share
agent_instruction_files
agent_instruction_max_bytes
Von der Bewertung ausgeschlossen (keine Daten oder nicht anwendbar): Lesbare Commit-Historie. Die verbleibenden Gewichte wurden renormalisiert.
Wie die Bewertung erfolgt
0/18Bootstrap mit einem Befehl
22/22Automatisierte Tests
0/11Lint-/Format-Konfiguration
11/11Statische Typprüfung — Java (statisch typisiert)
0/10Reproduzierbare Umgebung
0/10Belegte Agentenpraxis — keine Daten
0/8Automatisierte Wartung — keine Daten
0/10OpenSSF Scorecard: Pinned-Dependencies — dependency not pinned by hash detected -- score normalized to 0
Verwendete Eingangsdaten
has_nixnein
has_testsja
lockfiles
has_dockerfilenein
typed_languageja
bootstrap_files
has_devcontainernein
has_linter_confignein
typecheck_configs
agent_commit_share
toolchain_manifests
dependency_bot_commit_share
Von der Bewertung ausgeschlossen (keine Daten oder nicht anwendbar): Belegte Agentenpraxis, Automatisierte Wartung. Die verbleibenden Gewichte wurden renormalisiert.
Wie die Bewertung erfolgt
45/45Typprüfbarer Code — Java (statisch typisiert)
55/55Handhabbare Dateigrößen — 0/436 Quelldateien über 60 KB
Verwendete Eingangsdaten
primary_languageJava
largest_source_bytes18.588
source_files_sampled436
oversized_source_files0
Wie die Bewertung erfolgt
0/40API-Schema (OpenAPI/GraphQL/proto)
0/20MCP-Server
40/40Lauffähige Beispiele — example, examples
Verwendete Eingangsdaten
example_dirsexample, examples
has_mcp_signalnein
api_schema_files

Eckdaten

15.081GitHub-Sterne
7Mitwirkende
49Commits, letzte 12 Monate
74Tage seit letztem Push
0Releases
1Bus-Faktor
0offene Issues
MavenPaket-Ökosysteme

Warnungen zur Datenerhebung

  • Could not fetch maven package 'com.zhisheng.flink:flink-learning-basic' from its registry
  • Could not fetch maven package 'com.zhisheng.flink:flink-learning-cdc' from its registry
  • Could not fetch maven package 'com.zhisheng.flink:flink-learning-common' from its registry
  • Could not fetch maven package 'com.zhisheng.flink:flink-learning-configuration-center' from its registry
  • Could not fetch maven package 'com.zhisheng.flink:flink-learning-connectors' from its registry
  • Could not fetch maven package 'com.zhisheng.flink:flink-learning-core' from its registry
  • Could not fetch maven package 'com.zhisheng.flink:flink-learning-datalake' from its registry
  • Could not fetch maven package 'com.zhisheng.flink:flink-learning-examples' from its registry

Weitere Details

OpenSSF Scorecard 3.0 / 10
3.0Gesamtwert

Unabhängige, werkzeugneutrale Sicherheitsbewertung durch das quelloffene OpenSSF Scorecard. Jede Prüfung honoriert eine Sicherheits-Praxis, nicht das Werkzeug eines bestimmten Anbieters. Prüfungen, die Scorecard nicht ermitteln konnte, sind mit k. A. markiert und vom Sicherheitswert ausgeschlossen (nie als null gezählt).Scorecard v5.5.0 · 2026-07-20 12:44 UTC

10Binary-Artifactsno binaries found in the repo
0Branch-Protectionbranch protection not enabled on development/release branches
0CI-Tests0 out of 9 merged PRs checked by a CI test -- score normalized to 0
0CII-Best-Practicesno effort to earn an OpenSSF best practices badge detected
k. A.Code-ReviewFound no human activity in the last 9 changesets
10Contributorsproject has 3 contributing companies or organizations -- score normalized to 10
k. A.Dangerous-Workflowno workflows found
10Dependency-Update-Toolupdate tool detected
0Fuzzingproject is not fuzzed
10Licenselicense file detected
0Maintained0 commit(s) and 0 issue activity found in the last 90 days -- score normalized to 0
k. A.Packagingpackaging workflow not detected
0Pinned-Dependenciesdependency not pinned by hash detected -- score normalized to 0
0SASTSAST tool is not run on all commits -- score normalized to 0
0Security-Policysecurity policy file not detected
k. A.Signed-Releasesno releases found
k. A.Token-PermissionsNo tokens found
0Vulnerabilities117 existing vulnerabilities detected
Direkte Abhängigkeiten 18
RegistryPaketVersionsvorgabeManifest
Mavencom.google.guava:guava30.1-jreflink-learning-common/pom.xml
Mavencom.google.code.gson:gson2.8.5flink-learning-common/pom.xml
Mavenorg.apache.httpcomponents:httpclient4.5.13flink-learning-common/pom.xml
Mavenorg.projectlombok:lombok1.18.36flink-learning-common/pom.xml
Mavencom.jayway.jsonpath:json-path2.9.0flink-learning-common/pom.xml
Mavenjoda-time:joda-time2.9.9flink-learning-common/pom.xml
Mavenorg.apache.flink:flink-statebackend-rocksdb${flink.version}flink-learning-common/pom.xml
Mavencom.zhisheng.flink:flink-learning-common${project.version}flink-learning-configuration-center/pom.xml
Mavencom.zhisheng.flink:flink-learning-common${project.version}flink-learning-connectors/pom.xml
Mavenorg.slf4j:slf4j-api1.7.36flink-learning-core/pom.xml
Mavencom.zhisheng.flink:flink-learning-common${project.version}flink-learning-examples/pom.xml
Mavenmysql:mysql-connector-java5.1.34flink-learning-examples/pom.xml
Mavenorg.apache.flink:flink-connector-kafka${flink-connector-kafka.version}pom.xml
Mavenorg.apache.logging.log4j:log4j-slf4j-impl${log4j.version}pom.xml
Mavenorg.apache.logging.log4j:log4j-api${log4j.version}pom.xml
Mavenorg.apache.logging.log4j:log4j-core${log4j.version}pom.xml
Mavenorg.apache.flink:flink-streaming-java${flink.version}pom.xml
Mavenorg.apache.flink:flink-clients${flink.version}pom.xml
Alle Abhängigkeiten 97

Vollständig aufgelöster Abhängigkeitssatz aus dem GitHub-Abhängigkeitsgraphen: 19 direkte und 78 indirekte (transitive) Pakete. Die transitive Hülle ist vollständig, wenn das Repository eine Lockfile eincheckt.

RegistryPaketVersionBeziehung
Mavencom.google.code.gson:gson2.8.5direkt
Mavencom.google.guava:guava30.1-jredirekt
Mavencom.jayway.jsonpath:json-path2.9.0direkt
Mavencom.zhisheng.flink:flink-learning-common1.0-SNAPSHOTdirekt
Mavenjoda-time:joda-time2.9.9direkt
Mavenmysql:mysql-connector-java5.1.34direkt
Mavenmysql:mysql-connector-java5.1.44direkt
Mavenorg.apache.flink:flink-clientsdirekt
Mavenorg.apache.flink:flink-clients1.20.3direkt
Mavenorg.apache.flink:flink-connector-kafka3.4.0-1.20direkt
Mavenorg.apache.flink:flink-statebackend-rocksdbdirekt
Mavenorg.apache.flink:flink-streaming-javadirekt
Mavenorg.apache.flink:flink-streaming-java1.20.3direkt
Mavenorg.apache.httpcomponents:httpclient4.5.13direkt
Mavenorg.apache.logging.log4j:log4j-api2.25.3direkt
Mavenorg.apache.logging.log4j:log4j-core2.25.3direkt
Mavenorg.apache.logging.log4j:log4j-slf4j-impl2.25.3direkt
Mavenorg.projectlombok:lombok1.18.36direkt
Mavenorg.slf4j:slf4j-api1.7.36direkt
Mavencom.alibaba.nacos:nacos-client1.1.4indirekt
Mavencom.alibaba.nacos:nacos-common1.4.5indirekt
Mavencom.alibaba:fastjson1.2.83indirekt
Mavencom.ctrip.framework.apollo:apollo-client1.5.1indirekt
Mavencom.mashape.unirest:unirest-java1.4.9indirekt
Mavencom.squareup.okhttp3:okhttp4.9.2indirekt
Mavencom.ververica:flink-sql-connector-db2-cdcindirekt
Mavencom.ververica:flink-sql-connector-mongodb-cdcindirekt
Mavencom.ververica:flink-sql-connector-mysql-cdcindirekt
Mavencom.ververica:flink-sql-connector-oceanbase-cdcindirekt
Mavencom.ververica:flink-sql-connector-oracle-cdcindirekt
Mavencom.ververica:flink-sql-connector-postgres-cdcindirekt
Mavencom.ververica:flink-sql-connector-sqlserver-cdcindirekt
Mavencom.ververica:flink-sql-connector-tidb-cdcindirekt
Mavencom.zhisheng.flink:flink-learning-monitor-common1.0-SNAPSHOTindirekt
Mavencom.zhisheng.flink:flink-learning-project-common1.0-SNAPSHOTindirekt
Mavencom.zhisheng.flink:flink-learning-sql-common1.0-SNAPSHOTindirekt
Mavencom.zhisheng.flink:KafkaAppenderCommon1.0-SNAPSHOTindirekt
Mavenio.delta:delta-flinkindirekt
Mavenio.fabric8:kubernetes-client4.9.2indirekt
Mavenio.krakens:java-grok0.1.9indirekt
Mavenio.netty:netty-all4.1.42indirekt
Mavenio.prometheus:simpleclient0.8.1indirekt
Mavenio.prometheus:simpleclient_httpserver0.8.1indirekt
Mavenio.prometheus:simpleclient_pushgateway0.8.1indirekt
Mavenjunit:junit4.12indirekt
Mavenjunit:junit4.13.1indirekt
Mavenorg.antlr:antlr44.7.2indirekt
Mavenorg.apache.commons:commons-dbcp22.1.1indirekt
Mavenorg.apache.flink:flink-annotationsindirekt
Mavenorg.apache.flink:flink-cepindirekt
Mavenorg.apache.flink:flink-connector-elasticsearch6indirekt
Mavenorg.apache.flink:flink-connector-elasticsearch7indirekt
Mavenorg.apache.flink:flink-connector-gcp-pubsubindirekt
Mavenorg.apache.flink:flink-connector-hbase-2.2indirekt
Mavenorg.apache.flink:flink-connector-jdbcindirekt
Mavenorg.apache.flink:flink-connector-nifi1.15.4indirekt
Mavenorg.apache.flink:flink-connector-rabbitmqindirekt
Mavenorg.apache.flink:flink-connector-redis_2.101.1.5indirekt
Mavenorg.apache.flink:flink-coreindirekt
Mavenorg.apache.flink:flink-javaindirekt
Mavenorg.apache.flink:flink-jsonindirekt
Mavenorg.apache.flink:flink-metrics-coreindirekt
Mavenorg.apache.flink:flink-metrics-dropwizardindirekt
Mavenorg.apache.flink:flink-parquetindirekt
Mavenorg.apache.flink:flink-queryable-state-client-javaindirekt
Mavenorg.apache.flink:flink-runtimeindirekt
Mavenorg.apache.flink:flink-shaded-jackson2.15.3-19.0indirekt
Mavenorg.apache.flink:flink-sql-avroindirekt
Mavenorg.apache.flink:flink-sql-connector-elasticsearch7indirekt
Mavenorg.apache.flink:flink-sql-connector-hbase-2.2indirekt
Mavenorg.apache.flink:flink-sql-connector-kafkaindirekt
Mavenorg.apache.flink:flink-sql-orcindirekt
Mavenorg.apache.flink:flink-sql-parquetindirekt
Mavenorg.apache.flink:flink-state-processor-apiindirekt
Mavenorg.apache.flink:flink-table-api-javaindirekt
Mavenorg.apache.flink:flink-table-api-java-bridgeindirekt
Mavenorg.apache.flink:flink-table-commonindirekt
Mavenorg.apache.flink:flink-test-utils-junitindirekt
Mavenorg.apache.flume:flume-ng-core1.9.0indirekt
Mavenorg.apache.hadoop:hadoop-client3.4.1indirekt
Mavenorg.apache.hadoop:hadoop-common3.4.0indirekt
Mavenorg.apache.hadoop:hadoop-mapreduce-client-core2.6.0indirekt
Mavenorg.apache.hudi:hudi-flink1.20-bundleindirekt
Mavenorg.apache.iceberg:iceberg-flink-runtime-1.20indirekt
Mavenorg.apache.kafka:kafka-clients3.9.1indirekt
Mavenorg.apache.maven.plugins:maven-compiler-pluginindirekt
Mavenorg.apache.maven.plugins:maven-compiler-plugin3.6.0indirekt
Mavenorg.apache.maven.plugins:maven-shade-pluginindirekt
Mavenorg.apache.maven.plugins:maven-shade-plugin3.1.0indirekt
Mavenorg.apache.maven.plugins:maven-shade-plugin3.1.1indirekt
Mavenorg.apache.rocketmq:rocketmq-client4.2.0indirekt
Mavenorg.apache.rocketmq:rocketmq-common4.2.0indirekt
Mavenorg.influxdb:influxdb-java2.7indirekt
Mavenorg.postgresql:postgresql42.3.3indirekt
Mavenorg.postgresql:postgresql42.3.9indirekt
Mavenorg.slf4j:slf4j-log4j121.7.15indirekt
Mavenredis.clients:jedis2.9.0indirekt
JSON-Rohbericht maschinenlesbar
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        "collected": true,
        "truncated": false,
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        "direct_count": 19,
        "indirect_count": 78
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          "login": "zhisheng17",
          "commits": 411,
          "avatar_url": "https://avatars.githubusercontent.com/u/10086212?v=4"
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        {
          "type": "Bot",
          "login": "Copilot",
          "commits": 22,
          "avatar_url": "https://avatars.githubusercontent.com/in/1143301?v=4"
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        {
          "type": "User",
          "login": "1996fanrui",
          "commits": 20,
          "avatar_url": "https://avatars.githubusercontent.com/u/38427477?v=4"
        },
        {
          "type": "Bot",
          "login": "dependabot[bot]",
          "commits": 16,
          "avatar_url": "https://avatars.githubusercontent.com/in/29110?v=4"
        },
        {
          "type": "User",
          "login": "Braavos6",
          "commits": 1,
          "avatar_url": "https://avatars.githubusercontent.com/u/35978114?v=4"
        },
        {
          "type": "User",
          "login": "nytech3",
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          "avatar_url": "https://avatars.githubusercontent.com/u/19302756?v=4"
        },
        {
          "type": "User",
          "login": "nyingping",
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          "avatar_url": "https://avatars.githubusercontent.com/u/10743150?v=4"
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      ],
      "contributors_sampled": 7,
      "top_contributor_share": 0.871
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      "has_tests": true,
      "ci_workflows": [],
      "has_docs_dir": false,
      "linter_configs": [],
      "has_editorconfig": false,
      "has_linter_config": false,
      "has_precommit_config": false
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    "security_signals": {
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      "scorecard": {
        "checks": [
          {
            "name": "Binary-Artifacts",
            "score": 10,
            "reason": "no binaries found in the repo",
            "documentation_url": "https://github.com/ossf/scorecard/blob/c395761df6afe1a69e476bc60a013a94bcbc153f/docs/checks.md#binary-artifacts"
          },
          {
            "name": "Branch-Protection",
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            "reason": "branch protection not enabled on development/release branches",
            "documentation_url": "https://github.com/ossf/scorecard/blob/c395761df6afe1a69e476bc60a013a94bcbc153f/docs/checks.md#branch-protection"
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          {
            "name": "CI-Tests",
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            "reason": "0 out of 9 merged PRs checked by a CI test -- score normalized to 0",
            "documentation_url": "https://github.com/ossf/scorecard/blob/c395761df6afe1a69e476bc60a013a94bcbc153f/docs/checks.md#ci-tests"
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          {
            "name": "CII-Best-Practices",
            "score": 0,
            "reason": "no effort to earn an OpenSSF best practices badge detected",
            "documentation_url": "https://github.com/ossf/scorecard/blob/c395761df6afe1a69e476bc60a013a94bcbc153f/docs/checks.md#cii-best-practices"
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            "documentation_url": "https://github.com/ossf/scorecard/blob/c395761df6afe1a69e476bc60a013a94bcbc153f/docs/checks.md#code-review"
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          {
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            "score": 10,
            "reason": "project has 3 contributing companies or organizations -- score normalized to 10",
            "documentation_url": "https://github.com/ossf/scorecard/blob/c395761df6afe1a69e476bc60a013a94bcbc153f/docs/checks.md#contributors"
          },
          {
            "name": "Dangerous-Workflow",
            "score": null,
            "reason": "no workflows found",
            "documentation_url": "https://github.com/ossf/scorecard/blob/c395761df6afe1a69e476bc60a013a94bcbc153f/docs/checks.md#dangerous-workflow"
          },
          {
            "name": "Dependency-Update-Tool",
            "score": 10,
            "reason": "update tool detected",
            "documentation_url": "https://github.com/ossf/scorecard/blob/c395761df6afe1a69e476bc60a013a94bcbc153f/docs/checks.md#dependency-update-tool"
          },
          {
            "name": "Fuzzing",
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            "reason": "project is not fuzzed",
            "documentation_url": "https://github.com/ossf/scorecard/blob/c395761df6afe1a69e476bc60a013a94bcbc153f/docs/checks.md#fuzzing"
          },
          {
            "name": "License",
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            "reason": "license file detected",
            "documentation_url": "https://github.com/ossf/scorecard/blob/c395761df6afe1a69e476bc60a013a94bcbc153f/docs/checks.md#license"
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            "reason": "0 commit(s) and 0 issue activity found in the last 90 days -- score normalized to 0",
            "documentation_url": "https://github.com/ossf/scorecard/blob/c395761df6afe1a69e476bc60a013a94bcbc153f/docs/checks.md#maintained"
          },
          {
            "name": "Packaging",
            "score": null,
            "reason": "packaging workflow not detected",
            "documentation_url": "https://github.com/ossf/scorecard/blob/c395761df6afe1a69e476bc60a013a94bcbc153f/docs/checks.md#packaging"
          },
          {
            "name": "Pinned-Dependencies",
            "score": 0,
            "reason": "dependency not pinned by hash detected -- score normalized to 0",
            "documentation_url": "https://github.com/ossf/scorecard/blob/c395761df6afe1a69e476bc60a013a94bcbc153f/docs/checks.md#pinned-dependencies"
          },
          {
            "name": "SAST",
            "score": 0,
            "reason": "SAST tool is not run on all commits -- score normalized to 0",
            "documentation_url": "https://github.com/ossf/scorecard/blob/c395761df6afe1a69e476bc60a013a94bcbc153f/docs/checks.md#sast"
          },
          {
            "name": "Security-Policy",
            "score": 0,
            "reason": "security policy file not detected",
            "documentation_url": "https://github.com/ossf/scorecard/blob/c395761df6afe1a69e476bc60a013a94bcbc153f/docs/checks.md#security-policy"
          },
          {
            "name": "Signed-Releases",
            "score": null,
            "reason": "no releases found",
            "documentation_url": "https://github.com/ossf/scorecard/blob/c395761df6afe1a69e476bc60a013a94bcbc153f/docs/checks.md#signed-releases"
          },
          {
            "name": "Token-Permissions",
            "score": null,
            "reason": "No tokens found",
            "documentation_url": "https://github.com/ossf/scorecard/blob/c395761df6afe1a69e476bc60a013a94bcbc153f/docs/checks.md#token-permissions"
          },
          {
            "name": "Vulnerabilities",
            "score": 0,
            "reason": "117 existing vulnerabilities detected",
            "documentation_url": "https://github.com/ossf/scorecard/blob/c395761df6afe1a69e476bc60a013a94bcbc153f/docs/checks.md#vulnerabilities"
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        ],
        "commit": "d731cee7618021be56d132cc925102ffff8d75e6",
        "ran_at": "2026-07-20T12:44:25Z",
        "aggregate_score": 3,
        "scorecard_version": "v5.5.0"
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      "has_codeql_workflow": false,
      "has_security_policy": false,
      "has_dependabot_config": false
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  },
  "config": {
    "disabled_metrics": [],
    "disabled_categories": [],
    "disabled_components": {}
  },
  "source": {
    "url": "https://github.com/zhisheng17/flink-learning",
    "host": "github.com",
    "name": "flink-learning",
    "owner": "zhisheng17"
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  "metrics": {
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      "key": "overall",
      "band": "at_risk",
      "name": "Overall health",
      "note": null,
      "notes": [],
      "value": 43,
      "inputs": {
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        "vitality": 21,
        "community": 77,
        "governance": 45,
        "engineering": 44
      },
      "components": []
    },
    "categories": [
      {
        "key": "vitality",
        "band": "critical",
        "name": "Vitality",
        "value": 21,
        "weight": 0.22,
        "metrics": [
          {
            "key": "development_activity",
            "band": "at_risk",
            "name": "Development activity",
            "note": null,
            "notes": [],
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            "inputs": {
              "commits_last_year": 49,
              "human_commit_share": null,
              "days_since_last_push": 74,
              "active_weeks_last_year": 2
            },
            "components": [
              {
                "key": "push_recency",
                "name": "Push recency",
                "detail": "last push 74 days ago",
                "points": 18,
                "status": "partial",
                "details": [
                  {
                    "code": "push_recency",
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                      "days": 74
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                "max_points": 36
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                "key": "commit_cadence",
                "name": "Commit cadence",
                "detail": "2/52 weeks with commits",
                "points": 1.4,
                "status": "partial",
                "details": [
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                    "code": "commit_cadence_weeks",
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                      "weeks": 2
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                  }
                ],
                "max_points": 36
              },
              {
                "key": "commit_volume",
                "name": "Commit volume",
                "detail": "49 commits in the last year",
                "points": 15.3,
                "status": "partial",
                "details": [
                  {
                    "code": "commits_last_year",
                    "params": {
                      "count": 49
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                ],
                "max_points": 18
              },
              {
                "key": "openssf_scorecard_maintained",
                "name": "OpenSSF Scorecard: Maintained",
                "detail": "0 commit(s) and 0 issue activity found in the last 90 days -- score normalized to 0",
                "points": 0,
                "status": "missed",
                "details": [],
                "max_points": 10
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            ]
          },
          {
            "key": "release_discipline",
            "band": "critical",
            "name": "Release discipline",
            "note": "Excluded from scoring (no data or not applicable): OpenSSF Scorecard: Signed-Releases. Remaining weights renormalized.",
            "notes": [
              {
                "code": "excluded_no_data",
                "params": {
                  "components": [
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              },
              {
                "code": "weights_renormalized",
                "params": {}
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            "value": 1,
            "inputs": {
              "releases_count": 0
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            "components": [
              {
                "key": "ships_releases",
                "name": "Ships releases",
                "detail": "no releases published",
                "points": 0,
                "status": "missed",
                "details": [
                  {
                    "code": "no_releases_published",
                    "params": {}
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                ],
                "max_points": 27
              },
              {
                "key": "release_recency",
                "name": "Release recency",
                "detail": "no releases",
                "points": 0,
                "status": "missed",
                "details": [
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                    "code": "no_releases",
                    "params": {}
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                ],
                "max_points": 36
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              {
                "key": "release_cadence",
                "name": "Release cadence",
                "detail": "no releases",
                "points": 0,
                "status": "missed",
                "details": [
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                    "code": "no_releases",
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                ],
                "max_points": 27
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              {
                "key": "openssf_scorecard_signed_releases",
                "name": "OpenSSF Scorecard: Signed-Releases",
                "detail": "no releases found",
                "points": 0,
                "status": "excluded",
                "details": [
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                    "code": "no_data",
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                ],
                "max_points": 10
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          },
          {
            "key": "abandonment",
            "band": "excellent",
            "name": "Abandonment",
            "note": null,
            "notes": [],
            "value": 100,
            "inputs": {
              "cap": null,
              "state": "unverified",
              "guards": [],
              "signals": [],
              "red_flag": false,
              "multiplier_pct": 100,
              "declared_reason": null,
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              "days_since_last_human_commit_is_floor": false
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                "points": 100,
                "status": "met",
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                    "code": "abandonment_unverified",
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                ],
                "max_points": 100
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            ]
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        ],
        "description": "Is the project alive — is code being written and are releases shipping?"
      },
      {
        "key": "community",
        "band": "good",
        "name": "Community & Adoption",
        "value": 77,
        "weight": 0.18,
        "metrics": [
          {
            "key": "popularity",
            "band": "excellent",
            "name": "Popularity & adoption",
            "note": null,
            "notes": [],
            "value": 100,
            "inputs": {
              "forks": 3941,
              "stars": 15081,
              "watchers": 503,
              "growth_state": "unverified",
              "growth_factor_pct": 100,
              "growth_unverified_reason": "no_history"
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            "components": [
              {
                "key": "stars",
                "name": "Stars",
                "detail": "15,081 stars",
                "points": 60,
                "status": "met",
                "details": [
                  {
                    "code": "stars",
                    "params": {
                      "count": 15081
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                  }
                ],
                "max_points": 60
              },
              {
                "key": "forks",
                "name": "Forks",
                "detail": "3,941 forks",
                "points": 25,
                "status": "met",
                "details": [
                  {
                    "code": "forks",
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                      "count": 3941
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                ],
                "max_points": 25
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              {
                "key": "watchers",
                "name": "Watchers",
                "detail": "503 watchers",
                "points": 15,
                "status": "met",
                "details": [
                  {
                    "code": "watchers",
                    "params": {
                      "count": 503
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                  }
                ],
                "max_points": 15
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            ]
          },
          {
            "key": "community_health",
            "band": "moderate",
            "name": "Community health",
            "note": null,
            "notes": [],
            "value": 50,
            "inputs": {
              "has_readme": true,
              "has_license": true,
              "has_contributing": false,
              "has_issue_template": false,
              "has_code_of_conduct": false,
              "has_pull_request_template": false
            },
            "components": [
              {
                "key": "readme",
                "name": "README",
                "detail": null,
                "points": 22.5,
                "status": "met",
                "details": [],
                "max_points": 22.5
              },
              {
                "key": "license",
                "name": "License",
                "detail": "recognized license (Apache-2.0)",
                "points": 22.5,
                "status": "met",
                "details": [
                  {
                    "code": "license_standard",
                    "params": {}
                  },
                  {
                    "code": "license_spdx",
                    "params": {
                      "spdx": "Apache-2.0"
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                "max_points": 22.5
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              {
                "key": "contributing_guide",
                "name": "CONTRIBUTING guide",
                "detail": null,
                "points": 0,
                "status": "missed",
                "details": [],
                "max_points": 18
              },
              {
                "key": "code_of_conduct",
                "name": "Code of conduct",
                "detail": null,
                "points": 0,
                "status": "missed",
                "details": [],
                "max_points": 13.5
              },
              {
                "key": "issue_template",
                "name": "Issue template",
                "detail": null,
                "points": 0,
                "status": "missed",
                "details": [],
                "max_points": 7.2
              },
              {
                "key": "pr_template",
                "name": "PR template",
                "detail": null,
                "points": 0,
                "status": "missed",
                "details": [],
                "max_points": 6.3
              }
            ]
          }
        ],
        "description": "Does the project have users, downloads, attention, and a welcoming setup for contributors?"
      },
      {
        "key": "governance",
        "band": "at_risk",
        "name": "Sustainability & Governance",
        "value": 45,
        "weight": 0.24,
        "metrics": [
          {
            "key": "maintainer_resilience",
            "band": "at_risk",
            "name": "Maintainer resilience (bus factor)",
            "note": null,
            "notes": [],
            "value": 31,
            "inputs": {
              "bus_factor": 1,
              "contributors_sampled": 7,
              "top_contributor_share": 0.871
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            "components": [
              {
                "key": "bus_factor",
                "name": "Bus factor",
                "detail": "1 contributor(s) cover half of all commits",
                "points": 9,
                "status": "partial",
                "details": [
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                    "code": "bus_factor",
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                      "count": 1
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                "max_points": 54
              },
              {
                "key": "commit_distribution",
                "name": "Commit distribution",
                "detail": "top contributor authored 87% of commits",
                "points": 2.9,
                "status": "partial",
                "details": [
                  {
                    "code": "top_contributor_share",
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                "max_points": 22.5
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              {
                "key": "contributor_breadth",
                "name": "Contributor breadth",
                "detail": "7 contributors",
                "points": 9.5,
                "status": "partial",
                "details": [
                  {
                    "code": "contributors_sampled",
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                ],
                "max_points": 13.5
              },
              {
                "key": "openssf_scorecard_contributors",
                "name": "OpenSSF Scorecard: Contributors",
                "detail": "project has 3 contributing companies or organizations -- score normalized to 10",
                "points": 10,
                "status": "met",
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                "max_points": 10
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            ]
          },
          {
            "key": "responsiveness",
            "band": "at_risk",
            "name": "Issue & PR responsiveness",
            "note": "Excluded from scoring (no data or not applicable): Issue resolution, OpenSSF Scorecard: Code-Review. Remaining weights renormalized.",
            "notes": [
              {
                "code": "excluded_no_data",
                "params": {
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              },
              {
                "code": "weights_renormalized",
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            ],
            "value": 38,
            "inputs": {
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              "closed_issues": 0,
              "issue_closed_ratio": null,
              "closed_unmerged_prs": 51
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            "components": [
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                "key": "issue_resolution",
                "name": "Issue resolution",
                "detail": "no issues or no data",
                "points": 0,
                "status": "excluded",
                "details": [
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                    "code": "no_issues_or_data",
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                ],
                "max_points": 46.75
              },
              {
                "key": "pr_acceptance",
                "name": "PR acceptance",
                "detail": "31/82 decided PRs merged",
                "points": 14.5,
                "status": "partial",
                "details": [
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                    "code": "decided_prs_merged",
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                ],
                "max_points": 38.25
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              {
                "key": "openssf_scorecard_code_review",
                "name": "OpenSSF Scorecard: Code-Review",
                "detail": "Found no human activity in the last 9 changesets",
                "points": 0,
                "status": "excluded",
                "details": [
                  {
                    "code": "no_data",
                    "params": {}
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                "max_points": 15
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            ]
          },
          {
            "key": "stewardship",
            "band": "moderate",
            "name": "Ownership & stewardship",
            "note": "Excluded from scoring (no data or not applicable): Verified domain. Remaining weights renormalized.",
            "notes": [
              {
                "code": "excluded_no_data",
                "params": {
                  "components": [
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              },
              {
                "code": "weights_renormalized",
                "params": {}
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            ],
            "value": 69,
            "inputs": {
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              "is_verified": null,
              "owner_login": "zhisheng17",
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              "account_age_days": 4245
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            "components": [
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                "key": "ownership_backing",
                "name": "Ownership backing",
                "detail": "personal (user) account",
                "points": 10,
                "status": "partial",
                "details": [
                  {
                    "code": "owner_personal",
                    "params": {}
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                ],
                "max_points": 30
              },
              {
                "key": "verified_domain",
                "name": "Verified domain",
                "detail": "not applicable to user accounts",
                "points": 0,
                "status": "excluded",
                "details": [
                  {
                    "code": "not_applicable_to_user_accounts",
                    "params": {}
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                ],
                "max_points": 20
              },
              {
                "key": "owner_reach",
                "name": "Owner reach",
                "detail": "1,471 followers of zhisheng17",
                "points": 22.8,
                "status": "partial",
                "details": [
                  {
                    "code": "owner_followers",
                    "params": {
                      "count": 1471,
                      "login": "zhisheng17"
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                  }
                ],
                "max_points": 25
              },
              {
                "key": "track_record",
                "name": "Track record",
                "detail": "28 public repos, account ~11 yr old",
                "points": 22.6,
                "status": "partial",
                "details": [
                  {
                    "code": "public_repos",
                    "params": {
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                  },
                  {
                    "code": "account_age_years",
                    "params": {
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                ],
                "max_points": 25
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            ]
          }
        ],
        "description": "Will the project survive its people — bus factor, responsiveness, who backs it, and package upkeep?"
      },
      {
        "key": "engineering",
        "band": "at_risk",
        "name": "Engineering Quality",
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        "weight": 0.2,
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    "Could not fetch maven package 'com.zhisheng.flink:flink-learning-cdc' from its registry",
    "Could not fetch maven package 'com.zhisheng.flink:flink-learning-common' from its registry",
    "Could not fetch maven package 'com.zhisheng.flink:flink-learning-configuration-center' from its registry",
    "Could not fetch maven package 'com.zhisheng.flink:flink-learning-connectors' from its registry",
    "Could not fetch maven package 'com.zhisheng.flink:flink-learning-core' from its registry",
    "Could not fetch maven package 'com.zhisheng.flink:flink-learning-datalake' from its registry",
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