mimaison commented on code in PR #21523:
URL: https://github.com/apache/kafka/pull/21523#discussion_r2853880713
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docs/operations/basic-kafka-operations.md:
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@@ -427,9 +427,61 @@ The --verify option can be used with the tool to check the
status of the partiti
Reassignment of partition [foo1,0] is completed
Reassignment of partition [foo2,1] is completed
-## Decommissioning brokers
+## Decommissioning brokers and log directories
-The partition reassignment tool does not have the ability to automatically
generate a reassignment plan for decommissioning brokers yet. As such, the
admin has to come up with a reassignment plan to move the replica for all
partitions hosted on the broker to be decommissioned, to the rest of the
brokers. This can be relatively tedious as the reassignment needs to ensure
that all the replicas are not moved from the decommissioned broker to only one
other broker. To make this process effortless, we plan to add tooling support
for decommissioning brokers in the future.
+### Decommissioning brokers
+
+The first step to decommission brokers is to mark them as cordoned via the
Admin API.
+
+For example to cordon broker 1:
+
+ $ bin/kafka-configs.sh --bootstrap-server localhost:9092 --alter
--add-config cordoned.log.dirs=all --entity-type brokers --entity-name 1
Review Comment:
Yes it should be `*`, good catch! Let me push an update
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