Note |
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“Finishing cluster replication” log message only confirms that data loss does not occur. There are still background replication related tasks running. Please wait for these tasks to finish before continuing the rolling upgrade process. Please check the 2nd section of this KB.The individual brokers may still be observing I/O and CPU load stemming from the replication process. In order to ensure the cluster has reached its baseline load with the traffic it is experiencing, Please check the metrics in Replication task metrics |
Context
While doing a rolling upgrade, you would notice the following messages in the logs
...
This indicates that replication for all necessary persistent data to reach its replication factor on the target hosts has been achieved.
Note |
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Finishing cluster replication log message only confirms that data loss does not occur. There are still background replication related tasks running. Please wait for these tasks to finish before continuing the rolling upgrade process. The individual brokers may still be observing I/O and CPU load stemming from the replication process. |
In order to ensure the cluster has reached its baseline load with the traffic it is experiencing, Please check the metrics in