THIS IS A TEST INSTANCE. ALL YOUR CHANGES WILL BE LOST!!!!
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The controller accepts the AssignReplicasToDirectories RPC and persists the assignment into metadata records. If the indicated log directory UUID is not a registered log directory then the call fails with an errorerror 57 — LOG_DIR_NOT_FOUND . If the indicated log directory UUID is listed as offline, then the replica is considered offline and the leader and ISR is updated accordingly, same as when the BrokerHeartbeat indicates a new offline log directory.
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