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Diagram berikut menunjukkan berbagai status dan transisi dalam siklus proses streaming.
Pertama, Anda membuat streaming. Datastream menggunakan aliran ini untuk mentransfer data dari database sumber ke tujuan. Setelah streaming dibuat, status streaming adalah Not started.
Setelah membuat streaming, Anda dapat memulainya. Status streaming akan berubah menjadi Starting. Hal ini menandakan bahwa streaming sedang dalam proses dimulai dan divalidasi.
Jika streaming valid, status streaming akan berubah dari Starting menjadi Running.
Jika streaming tidak valid, status streaming akan berubah dari Starting kembali ke Not started. Kemudian, Anda dapat memperbaiki masalah streaming. Misalnya, jika error dikaitkan dengan informasi konektivitas streaming, ubah definisi streaming. Setelah menyelesaikan semua masalah streaming, mulai lagi, dan statusnya akan berubah menjadi Starting, lalu menjadi Running.
Anda dapat menjeda streaming. Saat streaming dijeda, Datastream tidak akan mengambil data baru dari database sumber ke tujuan. Namun, beberapa data mungkin terus ditulis ke tujuan karena data dalam penerbangan terus mengalir.
Oleh karena itu, setelah Anda menjeda streaming, status streaming akan berubah dari Running menjadi Draining. Menguras streaming adalah proses mengosongkan streaming sehingga tidak berisi data apa pun. Setelah semua data dihapus dari aliran data, status aliran data akan berubah dari Draining menjadi Paused.
Streaming yang sedang berjalan dapat mengalami error yang mungkin menyebabkan streaming mengubah statusnya menjadi Failed atau Failed permanently:
Status Failed berarti streaming mengalami error yang dapat dipulihkan. Ini berarti streaming masih aktif, atau terus mencoba berjalan.
Streaming Failed permanently adalah streaming yang mengalami error yang tidak dapat dipulihkan sehingga mencegahnya terus berjalan. Error tersebut dapat menyebabkan hilangnya data.
Anda dapat mengatasi masalah untuk streaming Failed, dan streaming akan otomatis dilanjutkan. Statusnya berubah dari Failed kembali ke Running. Untuk mengetahui informasi selengkapnya, lihat Memecahkan masalah streaming.
Anda dapat memulihkan streaming Failed permanently secara manual. Untuk informasi selengkapnya, lihat Memulihkan streaming.
[[["Mudah dipahami","easyToUnderstand","thumb-up"],["Memecahkan masalah saya","solvedMyProblem","thumb-up"],["Lainnya","otherUp","thumb-up"]],[["Sulit dipahami","hardToUnderstand","thumb-down"],["Informasi atau kode contoh salah","incorrectInformationOrSampleCode","thumb-down"],["Informasi/contoh yang saya butuhkan tidak ada","missingTheInformationSamplesINeed","thumb-down"],["Masalah terjemahan","translationIssue","thumb-down"],["Lainnya","otherDown","thumb-down"]],["Terakhir diperbarui pada 2025-08-12 UTC."],[[["\u003cp\u003eA stream's lifecycle begins with creation, resulting in a \u003ccode\u003eNot started\u003c/code\u003e status, and it progresses through states like \u003ccode\u003eStarting\u003c/code\u003e and \u003ccode\u003eRunning\u003c/code\u003e as it's initiated and validated.\u003c/p\u003e\n"],["\u003cp\u003ePausing a \u003ccode\u003eRunning\u003c/code\u003e stream transitions it to \u003ccode\u003eDraining\u003c/code\u003e, where remaining data is processed, before finally reaching the \u003ccode\u003ePaused\u003c/code\u003e state.\u003c/p\u003e\n"],["\u003cp\u003eStreams can be modified or deleted at any point, offering flexibility in managing their operation.\u003c/p\u003e\n"],["\u003cp\u003eIf a \u003ccode\u003eRunning\u003c/code\u003e stream encounters errors, it may transition to a \u003ccode\u003eFailed\u003c/code\u003e state (recoverable) or \u003ccode\u003eFailed permanently\u003c/code\u003e state (unrecoverable), requiring manual intervention in the latter case.\u003c/p\u003e\n"],["\u003cp\u003eWhen a \u003ccode\u003eFailed\u003c/code\u003e stream is addressed, it will automatically try to resume running, and when a \u003ccode\u003ePaused\u003c/code\u003e stream is resumed it will go to a \u003ccode\u003eRunning\u003c/code\u003e state.\u003c/p\u003e\n"]]],[],null,["# Stream lifecycle\n\nThe following diagram shows the various states and transitions in the lifecycle of a stream.\n\n\u003cbr /\u003e\n\n| In this diagram, the upside-down trapezoid boxes represent actions that the user performs with the stream, and the rectangle boxes represent the resultant states of the stream based on the user's actions.\n\n\u003cbr /\u003e\n\nFirst, you [create a stream](/datastream/docs/create-a-stream). Datastream uses this stream to transfer data from a source database into a destination. After the stream is created, the state of the stream is `Not started`.\n\nAfter creating the stream, you [start it](/datastream/docs/run-a-stream#startastream). The status of the stream changes to `Starting`. This signifies that the stream is in the process of being started and validated.\n\n- If the stream is valid, then the status of the stream changes from `Starting` to `Running`.\n- If the stream isn't valid, then the status of the stream changes from `Starting` back to `Not started`. You can then [rectify the problems of the stream](/datastream/docs/troubleshoot-a-stream). For example, if errors are associated with the connectivity information of the stream, then modify the stream definition. After resolving all problems of the stream, start it again, and the status changes to `Starting`, and then to `Running`.\n\nYou can [pause a stream](/datastream/docs/run-a-stream#pauseastream). When a stream is paused, Datastream doesn't pull any new data from the source database into the destination. However, some data may continue to be written to the destination because *in flight* data continues to flow.\n\nTherefore, after you pause a stream, the status of the stream changes from `Running` to `Draining`. Draining a stream is the process of emptying the stream so that it doesn't contain any data. After the stream is drained of all data, then the status of the stream changes from `Draining` to `Paused`.\n\nWhen you [resume a paused stream](/datastream/docs/run-a-stream#resumeastream), the status of the stream changes from `Paused` to `Running`.\n\nThere are two actions that you can perform at any time during the lifecycle of the stream:\n\n- [Modify the stream](/datastream/docs/modify-a-stream). Any changes that you make to it take effect immediately.\n- [Delete the stream](/datastream/docs/delete-a-stream) after you no longer need it.\n\nStream errors\n-------------\n\nA running stream can encounter errors which might cause the stream to change its state to `Failed` or `Failed permanently`:\n\n- A `Failed` status means that the stream encountered a recoverable error. This means that the stream is either still active, or continuously attempting to run.\n- A `Failed permanently` stream is a stream that ran into an unrecoverable error which prevents it from continuing to run. Such errors might cause data loss.\n\nYou can address the issues for a `Failed` stream, and the stream automatically resumes. Its state changes from `Failed` back to `Running`. For more information, see [Troubleshoot a stream](/datastream/docs/troubleshoot-a-stream).\n\nYou can manually recover a `Failed permanently` stream. For more information, see [Recover a stream](/datastream/docs/troubleshoot-a-stream).\n\nWhat's next\n-----------\n\n- For information about running a stream, see [Run a stream](/datastream/docs/run-a-stream).\n- For information about modifying your streams, see [Modify a stream](/datastream/docs/modify-a-stream).\n- For information about troubleshooting a stream, see [Troubleshoot a stream](/datastream/docs/troubleshoot-a-stream).\n- For information about recovering a stream, see [Recover a stream](/datastream/docs/recover-a-stream).\n- For information about deleting a stream, see [Delete a stream](/datastream/docs/delete-a-stream)."]]
