github.com/pingcap/ticdc@v0.0.0-20220526033649-485a10ef2652/docs/media (about) capture_architecture.png cdc_architecture.svg dashboard ha-image1.png ha-image2.png ha-image3.png ha-image4.png ha-image5.png ha-image6.png ha-image7.png tikv_cdc_stream_init.png