github.com/pingcap/tiflow@v0.0.0-20240520035814-5bf52d54e205/docs/ticdc-gc-safepoint.svg

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y="227.9653">"cdc-creating-&lt;ID&gt;"</text><polygon fill="#A80036" points="215,258.1641,205,262.1641,215,266.1641,211,262.1641" style="stroke:#A80036;stroke-width:1.0;"/><line style="stroke:#A80036;stroke-width:1.0;" x1="209" x2="356" y1="262.1641" y2="262.1641"/><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacing" textLength="122" x="221" y="257.0981">Create changefeed</text><polygon fill="#A80036" points="215,314.4297,205,318.4297,215,322.4297,211,318.4297" style="stroke:#A80036;stroke-width:1.0;"/><line style="stroke:#A80036;stroke-width:1.0;" x1="209" x2="356" y1="318.4297" y2="318.4297"/><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacing" textLength="126" x="221" y="313.3638">GC safepoint "ticdc"</text><path d="M362,282.1641 L362,337.1641 L501,337.1641 L501,292.1641 L491,282.1641 L362,282.1641 " fill="#FBFB77" filter="url(#f1v7q03kszvp13)" style="stroke:#A80036;stroke-width:1.0;"/><path d="M491,282.1641 L491,292.1641 L501,292.1641 L491,282.1641 " fill="#FBFB77" style="stroke:#A80036;stroke-width:1.0;"/><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacing" textLength="114" x="368" y="299.231">using the minimal</text><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacing" textLength="118" x="368" y="314.3638">checkpoint among</text><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacing" textLength="100" x="368" y="329.4966">all changefeeds</text><polygon fill="#A80036" points="205,393.9609,195,397.9609,205,401.9609,201,397.9609" style="stroke:#A80036;stroke-width:1.0;"/><line style="stroke:#A80036;stroke-width:1.0;" x1="199" x2="356" y1="397.9609" y2="397.9609"/><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacing" textLength="101" x="211" y="362.6294">Remove service</text><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacing" textLength="82" x="211" 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@startuml TiCDC GC safepoint
box #LightBlue
participant CLI
participant API
end box

group "CLI or API?" [CLI]
  CLI -> PD : service GC safepoint\n"cdc-creating-<ID>"
  activate PD
  CLI -> PD : Create changefeed
else API
  API -> Owner : Create changefeed API
  Owner -> PD : service GC safepoint\n"cdc-creating-<ID>"
  activate PD
  Owner -> PD : Create changefeed
end

Owner -> PD : GC safepoint "ticdc"
note right: using the minimal\ncheckpoint among\nall changefeeds

Owner -> PD : Remove service\nGC safepoint\n"cdc-creating-<ID>"
deactivate PD
deactivate PD
Owner -> Owner : Start changefeed
@enduml

PlantUML version 1.2021.7(Sun May 23 20:40:07 CST 2021)
(GPL source distribution)
Java Runtime: OpenJDK Runtime Environment
JVM: OpenJDK 64-Bit Server VM
Default Encoding: UTF-8
Language: en
Country: US
--></g></svg>