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Shlomi Noach 2016-12-27 09:16:27 +02:00
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doc/subsecond-lag.md
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@ -16,4 +16,4 @@ You can explicitly define how frequently will `gh-ost` inject heartbeat events,
In earlier versions, the `--throttle-control-replicas` list was subjected to `1` second resolution or to 3rd party heartbeat injections such as `pt-heartbeat`. This is no longer the case. The argument `--replication-lag-query` has been deprecated and no longer needed.
Our production migrations use sub-second lag throttling and are able to keep our entire fleet of replicas well below `1sec` lag. We use `--heartbeat-interval-millis=100` on our production migrations with a `--mas-lag-millis` value of between `300` and `500`.
Our production migrations use sub-second lag throttling and are able to keep our entire fleet of replicas well below `1sec` lag. We use `--heartbeat-interval-millis=100` on our production migrations with a `--max-lag-millis` value of between `300` and `500`.