kafka.server

Class ReplicaAlterLogDirsTierStateMachine

java.lang.Object

kafka.server.ReplicaAlterLogDirsTierStateMachine

All Implemented Interfaces:

TierStateMachine

public class ReplicaAlterLogDirsTierStateMachine
extends Object
implements TierStateMachine

The replica alter log dirs tier state machine is unsupported but is provided to the ReplicaAlterLogDirsThread.

Constructor Summary

Constructors

Constructor and Description
ReplicaAlterLogDirsTierStateMachine()

Method Summary

Modifier and Type	Method and Description
Optional<kafka.server.PartitionFetchState>	maybeAdvanceState(org.apache.kafka.common.TopicPartition topicPartition, kafka.server.PartitionFetchState currentFetchState) Optionally advance the state of the tier state machine, based on the current PartitionFetchState.
kafka.server.PartitionFetchState	start(org.apache.kafka.common.TopicPartition topicPartition, kafka.server.PartitionFetchState currentFetchState, org.apache.kafka.common.message.FetchResponseData.PartitionData fetchPartitionData) Start the tier state machine for the provided topic partition.

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

ReplicaAlterLogDirsTierStateMachine

public ReplicaAlterLogDirsTierStateMachine()

Method Detail

start

public kafka.server.PartitionFetchState start(org.apache.kafka.common.TopicPartition topicPartition,
                                              kafka.server.PartitionFetchState currentFetchState,
                                              org.apache.kafka.common.message.FetchResponseData.PartitionData fetchPartitionData)
                                       throws Exception

Description copied from interface: TierStateMachine

Start the tier state machine for the provided topic partition.

Specified by:

start in interface TierStateMachine

Parameters:

topicPartition - the topic partition

currentFetchState - the current PartitionFetchState which will be used to derive the return value

fetchPartitionData - the data from the fetch response that returned the offset moved to tiered storage error

Returns:

the new PartitionFetchState after the successful start of the tier state machine

Throws:

Exception

maybeAdvanceState

public Optional<kafka.server.PartitionFetchState> maybeAdvanceState(org.apache.kafka.common.TopicPartition topicPartition,
                                                                    kafka.server.PartitionFetchState currentFetchState)

Description copied from interface: TierStateMachine

Optionally advance the state of the tier state machine, based on the current PartitionFetchState. The decision to advance the tier state machine is implementation specific.

Specified by:

maybeAdvanceState in interface TierStateMachine

Parameters:

topicPartition - the topic partition

currentFetchState - the current PartitionFetchState which will be used to derive the return value

Returns:

the new PartitionFetchState if the tier state machine was advanced, otherwise, return the currentFetchState