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Adjust the definition of min_checkpoint_frequency cdc #19232
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Original file line number | Diff line number | Diff line change |
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@@ -11,7 +11,7 @@ When an {{ site.data.products.enterprise }} changefeed is started on a node, tha | |
{% include {{ page.version.version }}/cdc/work-distribution-setting.md %} | ||
{{site.data.alerts.end}} | ||
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Each node uses its aggregator processors to send back checkpoint progress to the coordinator, which gathers this information to update the high-water mark timestamp. The high-water mark acts as a checkpoint for the changefeed’s job progress, and guarantees that all changes before (or at) the timestamp have been emitted. In the unlikely event that the changefeed’s coordinating node were to fail during the job, that role will move to a different node and the changefeed will restart from the last checkpoint. If restarted, the changefeed may [re-emit messages]({% link {{ page.version.version }}/changefeed-messages.md %}#duplicate-messages) starting at the high-water mark time to the current time. Refer to [Ordering Guarantees]({% link {{ page.version.version }}/changefeed-messages.md %}#ordering-and-delivery-guarantees) for detail on CockroachDB's at-least-once-delivery-guarantee and how per-key message ordering is applied. | ||
Each node uses its _aggregator processors_ to send back checkpoint progress to the coordinator, which gathers this information to update the _high-water mark timestamp_. The high-water mark acts as a checkpoint for the changefeed’s job progress, and guarantees that all changes before (or at) the timestamp have been emitted. In the unlikely event that the changefeed’s coordinating node were to fail during the job, that role will move to a different node and the changefeed will restart from the last checkpoint. If restarted, the changefeed may [re-emit messages]({% link {{ page.version.version }}/changefeed-messages.md %}#duplicate-messages) starting at the high-water mark time to the current time. Refer to [Ordering Guarantees]({% link {{ page.version.version }}/changefeed-messages.md %}#ordering-and-delivery-guarantees) for detail on CockroachDB's at-least-once-delivery-guarantee and how per-key message ordering is applied. | ||
There was a problem hiding this comment. Choose a reason for hiding this commentThe reason will be displayed to describe this comment to others. Learn more. Just a small change to italicize key words on this technical overview page. |
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<img src="{{ 'images/v23.1/changefeed-structure.png' | relative_url }}" alt="Changefeed process in a 3-node cluster" style="border:0px solid #eee;max-width:100%" /> | ||
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A little hard to see, but the sentence that have changed in each version are from:
To: