AeronCounters (Aeron Message Transport)

java.lang.Object
- io.aeron.AeronCounters

```
public final class AeronCounters
extends Object
```
This class serves as a registry for all counter type IDs used by Aeron.
The following ranges are reserved:
- 0 - 99: for client/driver counters.
- 100 - 199: for archive counters.
- 200 - 299: for cluster counters.

Field Summary

Fields
Modifier and Type	Field and Description
`static int`	`ARCHIVE_CONTROL_SESSIONS_TYPE_ID` The type id of the `Counter` used for keeping track of the count of concurrent control sessions.
`static int`	`ARCHIVE_CYCLE_TIME_THRESHOLD_EXCEEDED_TYPE_ID` The type id of the `Counter` used for keeping track of the count of cycle time threshold exceeded of an archive agent.
`static int`	`ARCHIVE_ERROR_COUNT_TYPE_ID` The type id of the `Counter` used for keeping track of the number of errors that have occurred.
`static int`	`ARCHIVE_MAX_CYCLE_TIME_TYPE_ID` The type id of the `Counter` used for keeping track of the max duty cycle time of an archive agent.
`static int`	`ARCHIVE_RECORDER_MAX_WRITE_TIME_TYPE_ID` The type id of the `Counter` used for keeping track of the max time it took recoder to write a block of data to the storage.
`static int`	`ARCHIVE_RECORDER_TOTAL_WRITE_BYTES_TYPE_ID` The type id of the `Counter` used for keeping track of the total number of bytes written by the recorder to the storage.
`static int`	`ARCHIVE_RECORDER_TOTAL_WRITE_TIME_TYPE_ID` The type id of the `Counter` used for keeping track of the total time the recorder spent writing data to the storage.
`static int`	`ARCHIVE_RECORDING_POSITION_TYPE_ID` The position a recording has reached when being archived.
`static int`	`ARCHIVE_RECORDING_SESSION_COUNT_TYPE_ID` The type id of the `Counter` used for tracking the count of active recording sessions.
`static int`	`ARCHIVE_REPLAY_SESSION_COUNT_TYPE_ID` The type id of the `Counter` used for tracking the count of active replay sessions.
`static int`	`ARCHIVE_REPLAYER_MAX_READ_TIME_TYPE_ID` The type id of the `Counter` used for keeping track of the max time it took replayer to read a block from the storage.
`static int`	`ARCHIVE_REPLAYER_TOTAL_READ_BYTES_TYPE_ID` The type id of the `Counter` used for keeping track of the total number of bytes read by the replayer from the storage.
`static int`	`ARCHIVE_REPLAYER_TOTAL_READ_TIME_TYPE_ID` The type id of the `Counter` used for keeping track of the total time the replayer spent reading data from the storage.
`static int`	`CLUSTER_BACKUP_ERROR_COUNT_TYPE_ID` The type id of the `Counter` used for keeping track of the number of errors that have occurred.
`static int`	`CLUSTER_BACKUP_LIVE_LOG_POSITION_TYPE_ID` The type id of the `Counter` used for the live log position counter.
`static int`	`CLUSTER_BACKUP_QUERY_DEADLINE_TYPE_ID` The type id of the `Counter` used for the next query deadline counter.
`static int`	`CLUSTER_BACKUP_STATE_TYPE_ID` The type id of the `Counter` used for the backup state.
`static int`	`CLUSTER_CLIENT_TIMEOUT_COUNT_TYPE_ID` Counter type id for the number of cluster clients which have been timed out.
`static int`	`CLUSTER_CLUSTERED_SERVICE_CYCLE_TIME_THRESHOLD_EXCEEDED_TYPE_ID` The type id of the `Counter` used for keeping track of the count of cycle time threshold exceeded of the service container.
`static int`	`CLUSTER_CLUSTERED_SERVICE_ERROR_COUNT_TYPE_ID` Counter type id for the clustered service error count.
`static int`	`CLUSTER_CLUSTERED_SERVICE_MAX_CYCLE_TIME_TYPE_ID` The type id of the `Counter` used for keeping track of the max duty cycle time of the service container.
`static int`	`CLUSTER_COMMIT_POSITION_TYPE_ID` Counter type id of the commit position.
`static int`	`CLUSTER_CONSENSUS_MODULE_ERROR_COUNT_TYPE_ID` Counter type id for the consensus module error count.
`static int`	`CLUSTER_CONSENSUS_MODULE_STATE_TYPE_ID` Counter type id for the consensus module state.
`static int`	`CLUSTER_CONTROL_TOGGLE_TYPE_ID` Counter type id for the control toggle.
`static int`	`CLUSTER_CYCLE_TIME_THRESHOLD_EXCEEDED_TYPE_ID` The type id of the `Counter` used for keeping track of the count of cycle time threshold exceeded of the consensus module.
`static int`	`CLUSTER_ELECTION_STATE_TYPE_ID` Type id for election state counter.
`static int`	`CLUSTER_INVALID_REQUEST_COUNT_TYPE_ID` Counter type id for the number of invalid requests which the cluster has received.
`static int`	`CLUSTER_MAX_CYCLE_TIME_TYPE_ID` The type id of the `Counter` used for keeping track of the max duty cycle time of the consensus module.
`static int`	`CLUSTER_NODE_ROLE_TYPE_ID` Counter type id for the cluster node role.
`static int`	`CLUSTER_RECOVERY_STATE_TYPE_ID` Counter representing the Recovery State for the cluster.
`static int`	`CLUSTER_SNAPSHOT_COUNTER_TYPE_ID` Counter type id for count of snapshots taken.
`static int`	`CLUSTER_STANDBY_CONTROL_TOGGLE_TYPE_ID` Standby control toggle type id
`static int`	`CLUSTER_STANDBY_CYCLE_TIME_THRESHOLD_EXCEEDED_TYPE_ID` The type id of the `Counter` used for keeping track of the count of cycle time threshold exceeded of the cluster standby.
`static int`	`CLUSTER_STANDBY_ERROR_COUNT_TYPE_ID` Counter type id for the clustered service error count.
`static int`	`CLUSTER_STANDBY_HEARTBEAT_RESPONSE_COUNT_TYPE_ID` Counter type for responses to heartbeat request from the cluster.
`static int`	`CLUSTER_STANDBY_MAX_CYCLE_TIME_TYPE_ID` The type id of the `Counter` used for keeping track of the max duty cycle time of the cluster standby.
`static int`	`CLUSTER_STANDBY_SNAPSHOT_COUNTER_TYPE_ID` Counter type for count of standby snapshots received.
`static int`	`CLUSTER_STANDBY_SOURCE_MEMBER_ID_TYPE_ID` The type id of the `Counter` to make visible the memberId that the cluster standby is currently using to as a source for the cluster log.
`static int`	`CLUSTER_STANDBY_STATE_TYPE_ID` The type id of the `Counter` used for the cluster standby state.
`static int`	`CLUSTER_TOTAL_MAX_SNAPSHOT_DURATION_TYPE_ID` The type id of the `Counter` used for keeping track of the maximum total snapshot duration.
`static int`	`CLUSTER_TOTAL_SNAPSHOT_DURATION_THRESHOLD_EXCEEDED_TYPE_ID` The type id of the `Counter` used for keeping track of the count total snapshot duration has exceeded the threshold.
`static int`	`DRIVER_HEARTBEAT_TYPE_ID` A counter for tracking the last heartbeat of an entity with a given registration id.
`static int`	`DRIVER_LOCAL_SOCKET_ADDRESS_STATUS_TYPE_ID` Counter used to store the status of a bind address and port for the local end of a channel.
`static int`	`DRIVER_PER_IMAGE_TYPE_ID` A counter per Image indicating presence of the congestion control.
`static int`	`DRIVER_PUBLISHER_LIMIT_TYPE_ID` The limit as a position in bytes applied to publishers on a session-channel-stream tuple.
`static int`	`DRIVER_PUBLISHER_POS_TYPE_ID` The position in bytes a publication has reached appending to the log.
`static int`	`DRIVER_RECEIVE_CHANNEL_STATUS_TYPE_ID` The status of a receive-channel-endpoint represented as a counter value.
`static int`	`DRIVER_RECEIVER_HWM_TYPE_ID` The highest position the Receiver has observed on a session-channel-stream tuple while rebuilding the stream.
`static int`	`DRIVER_RECEIVER_POS_TYPE_ID` The highest position the Receiver has rebuilt up to on a session-channel-stream tuple while rebuilding the stream.
`static int`	`DRIVER_SEND_CHANNEL_STATUS_TYPE_ID` The status of a send-channel-endpoint represented as a counter value.
`static int`	`DRIVER_SENDER_BPE_TYPE_ID` Count of back-pressure events (BPE)s a sender has experienced on a stream.
`static int`	`DRIVER_SENDER_LIMIT_TYPE_ID` The position the Sender can immediately send up-to on a session-channel-stream tuple.
`static int`	`DRIVER_SENDER_POSITION_TYPE_ID` The position the Sender has reached for sending data to the media on a session-channel-stream tuple.
`static int`	`DRIVER_SUBSCRIBER_POSITION_TYPE_ID` The position an individual Subscriber has reached on a session-channel-stream tuple.
`static int`	`DRIVER_SYSTEM_COUNTER_TYPE_ID` System-wide counters for monitoring.
`static int`	`FLOW_CONTROL_RECEIVERS_COUNTER_TYPE_ID` Count of number of active receivers for flow control strategy.
`static int`	`MDC_DESTINATIONS_COUNTER_TYPE_ID` Count of number of destinations for multi-destination cast channels.
`static int`	`NAME_RESOLVER_CACHE_ENTRIES_COUNTER_TYPE_ID` Count of entries in the name resolver cache.
`static int`	`NAME_RESOLVER_NEIGHBORS_COUNTER_TYPE_ID` Count of media driver neighbors for name resolution.
`static int`	`NODE_CONTROL_TOGGLE_TYPE_ID` The type of the `Counter` used for handling node specific operations.
`static int`	`TRANSITION_MODULE_CONTROL_TOGGLE_TYPE_ID` Transition module control toggle type id
`static int`	`TRANSITION_MODULE_CYCLE_TIME_THRESHOLD_EXCEEDED_TYPE_ID` The type id of the `Counter` used for keeping track of the count of cycle time threshold exceeded of the transition module.
`static int`	`TRANSITION_MODULE_ERROR_COUNT_TYPE_ID` Counter type id for the transition module error count.
`static int`	`TRANSITION_MODULE_MAX_CYCLE_TIME_TYPE_ID` The type id of the `Counter` used for keeping track of the max duty cycle time of the transition module.
`static int`	`TRANSITION_MODULE_STATE_TYPE_ID` The type if of the `Counter` used for transition module state

Method Summary

All Methods Static Methods Concrete Methods
Modifier and Type	Method and Description
`static int`	`appendToLabel(AtomicBuffer metaDataBuffer, int counterId, String value)` Append specified `value` at the end of the counter's label as ASCII encoded value up to the `CountersReader.MAX_LABEL_LENGTH`.
`static int`	`appendVersionInfo(MutableDirectBuffer tempBuffer, int offset, String fullVersion, String commitHashCode)` Append version information at the end of the counter's label.
`static String`	`formatVersionInfo(String fullVersion, String commitHash)` Format version information for display purposes.
`static void`	`validateCounterTypeId(Aeron aeron, Counter counter, int expectedCounterTypeId)` Convenience overload for `validateCounterTypeId(CountersReader, int, int)`
`static void`	`validateCounterTypeId(CountersReader countersReader, int counterId, int expectedCounterTypeId)` Checks that the counter specified by `counterId` has the counterTypeId that matches the specified value.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - DRIVER_SYSTEM_COUNTER_TYPE_ID
```
public static final int DRIVER_SYSTEM_COUNTER_TYPE_ID
```
    System-wide counters for monitoring. These are separate from counters used for position tracking on streams.
    
    See Also:
    
    Constant Field Values
  - DRIVER_PUBLISHER_LIMIT_TYPE_ID
```
public static final int DRIVER_PUBLISHER_LIMIT_TYPE_ID
```
    The limit as a position in bytes applied to publishers on a session-channel-stream tuple. Publishers will experience back pressure when this position is passed as a means of flow control.
    
    See Also:
    
    Constant Field Values
  - DRIVER_SENDER_POSITION_TYPE_ID
```
public static final int DRIVER_SENDER_POSITION_TYPE_ID
```
    The position the Sender has reached for sending data to the media on a session-channel-stream tuple.
    
    See Also:
    
    Constant Field Values
  - DRIVER_RECEIVER_HWM_TYPE_ID
```
public static final int DRIVER_RECEIVER_HWM_TYPE_ID
```
    The highest position the Receiver has observed on a session-channel-stream tuple while rebuilding the stream. It is possible the stream is not complete to this point if the stream has experienced loss.
    
    See Also:
    
    Constant Field Values
  - DRIVER_SUBSCRIBER_POSITION_TYPE_ID
```
public static final int DRIVER_SUBSCRIBER_POSITION_TYPE_ID
```
    The position an individual Subscriber has reached on a session-channel-stream tuple. It is possible to have multiple
    
    See Also:
    
    Constant Field Values
  - DRIVER_RECEIVER_POS_TYPE_ID
```
public static final int DRIVER_RECEIVER_POS_TYPE_ID
```
    The highest position the Receiver has rebuilt up to on a session-channel-stream tuple while rebuilding the stream. The stream is complete up to this point.
    
    See Also:
    
    Constant Field Values
  - DRIVER_SEND_CHANNEL_STATUS_TYPE_ID
```
public static final int DRIVER_SEND_CHANNEL_STATUS_TYPE_ID
```
    The status of a send-channel-endpoint represented as a counter value.
    
    See Also:
    
    Constant Field Values
  - DRIVER_RECEIVE_CHANNEL_STATUS_TYPE_ID
```
public static final int DRIVER_RECEIVE_CHANNEL_STATUS_TYPE_ID
```
    The status of a receive-channel-endpoint represented as a counter value.
    
    See Also:
    
    Constant Field Values
  - DRIVER_SENDER_LIMIT_TYPE_ID
```
public static final int DRIVER_SENDER_LIMIT_TYPE_ID
```
    The position the Sender can immediately send up-to on a session-channel-stream tuple.
    
    See Also:
    
    Constant Field Values
  - DRIVER_PER_IMAGE_TYPE_ID
```
public static final int DRIVER_PER_IMAGE_TYPE_ID
```
    A counter per Image indicating presence of the congestion control.
    
    See Also:
    
    Constant Field Values
  - DRIVER_HEARTBEAT_TYPE_ID
```
public static final int DRIVER_HEARTBEAT_TYPE_ID
```
    A counter for tracking the last heartbeat of an entity with a given registration id.
    
    See Also:
    
    Constant Field Values
  - DRIVER_PUBLISHER_POS_TYPE_ID
```
public static final int DRIVER_PUBLISHER_POS_TYPE_ID
```
    The position in bytes a publication has reached appending to the log.
    Note: This is a not a real-time value like the other and is updated one per second for monitoring purposes.
    
    See Also:
    
    Constant Field Values
  - DRIVER_SENDER_BPE_TYPE_ID
```
public static final int DRIVER_SENDER_BPE_TYPE_ID
```
    Count of back-pressure events (BPE)s a sender has experienced on a stream.
    
    See Also:
    
    Constant Field Values
  - NAME_RESOLVER_NEIGHBORS_COUNTER_TYPE_ID
```
public static final int NAME_RESOLVER_NEIGHBORS_COUNTER_TYPE_ID
```
    Count of media driver neighbors for name resolution.
    
    See Also:
    
    Constant Field Values
  - NAME_RESOLVER_CACHE_ENTRIES_COUNTER_TYPE_ID
```
public static final int NAME_RESOLVER_CACHE_ENTRIES_COUNTER_TYPE_ID
```
    Count of entries in the name resolver cache.
    
    See Also:
    
    Constant Field Values
  - DRIVER_LOCAL_SOCKET_ADDRESS_STATUS_TYPE_ID
```
public static final int DRIVER_LOCAL_SOCKET_ADDRESS_STATUS_TYPE_ID
```
    Counter used to store the status of a bind address and port for the local end of a channel.
    When the value is ChannelEndpointStatus.ACTIVE then the key value and label will be updated with the socket address and port which is bound.
    
    See Also:
    
    Constant Field Values
  - FLOW_CONTROL_RECEIVERS_COUNTER_TYPE_ID
```
public static final int FLOW_CONTROL_RECEIVERS_COUNTER_TYPE_ID
```
    Count of number of active receivers for flow control strategy.
    
    See Also:
    
    Constant Field Values
  - MDC_DESTINATIONS_COUNTER_TYPE_ID
```
public static final int MDC_DESTINATIONS_COUNTER_TYPE_ID
```
    Count of number of destinations for multi-destination cast channels.
    
    See Also:
    
    Constant Field Values
  - ARCHIVE_RECORDING_POSITION_TYPE_ID
```
public static final int ARCHIVE_RECORDING_POSITION_TYPE_ID
```
    The position a recording has reached when being archived.
    
    See Also:
    
    Constant Field Values
  - ARCHIVE_ERROR_COUNT_TYPE_ID
```
public static final int ARCHIVE_ERROR_COUNT_TYPE_ID
```
    The type id of the Counter used for keeping track of the number of errors that have occurred.
    
    See Also:
    
    Constant Field Values
  - ARCHIVE_CONTROL_SESSIONS_TYPE_ID
```
public static final int ARCHIVE_CONTROL_SESSIONS_TYPE_ID
```
    The type id of the Counter used for keeping track of the count of concurrent control sessions.
    
    See Also:
    
    Constant Field Values
  - ARCHIVE_MAX_CYCLE_TIME_TYPE_ID
```
public static final int ARCHIVE_MAX_CYCLE_TIME_TYPE_ID
```
    The type id of the Counter used for keeping track of the max duty cycle time of an archive agent.
    
    See Also:
    
    Constant Field Values
  - ARCHIVE_CYCLE_TIME_THRESHOLD_EXCEEDED_TYPE_ID
```
public static final int ARCHIVE_CYCLE_TIME_THRESHOLD_EXCEEDED_TYPE_ID
```
    The type id of the Counter used for keeping track of the count of cycle time threshold exceeded of an archive agent.
    
    See Also:
    
    Constant Field Values
  - ARCHIVE_RECORDER_MAX_WRITE_TIME_TYPE_ID
```
public static final int ARCHIVE_RECORDER_MAX_WRITE_TIME_TYPE_ID
```
    The type id of the Counter used for keeping track of the max time it took recoder to write a block of data to the storage.
    
    See Also:
    
    Constant Field Values
  - ARCHIVE_RECORDER_TOTAL_WRITE_BYTES_TYPE_ID
```
public static final int ARCHIVE_RECORDER_TOTAL_WRITE_BYTES_TYPE_ID
```
    The type id of the Counter used for keeping track of the total number of bytes written by the recorder to the storage.
    
    See Also:
    
    Constant Field Values
  - ARCHIVE_RECORDER_TOTAL_WRITE_TIME_TYPE_ID
```
public static final int ARCHIVE_RECORDER_TOTAL_WRITE_TIME_TYPE_ID
```
    The type id of the Counter used for keeping track of the total time the recorder spent writing data to the storage.
    
    See Also:
    
    Constant Field Values
  - ARCHIVE_REPLAYER_MAX_READ_TIME_TYPE_ID
```
public static final int ARCHIVE_REPLAYER_MAX_READ_TIME_TYPE_ID
```
    The type id of the Counter used for keeping track of the max time it took replayer to read a block from the storage.
    
    See Also:
    
    Constant Field Values
  - ARCHIVE_REPLAYER_TOTAL_READ_BYTES_TYPE_ID
```
public static final int ARCHIVE_REPLAYER_TOTAL_READ_BYTES_TYPE_ID
```
    The type id of the Counter used for keeping track of the total number of bytes read by the replayer from the storage.
    
    See Also:
    
    Constant Field Values
  - ARCHIVE_REPLAYER_TOTAL_READ_TIME_TYPE_ID
```
public static final int ARCHIVE_REPLAYER_TOTAL_READ_TIME_TYPE_ID
```
    The type id of the Counter used for keeping track of the total time the replayer spent reading data from the storage.
    
    See Also:
    
    Constant Field Values
  - ARCHIVE_RECORDING_SESSION_COUNT_TYPE_ID
```
public static final int ARCHIVE_RECORDING_SESSION_COUNT_TYPE_ID
```
    The type id of the Counter used for tracking the count of active recording sessions.
    
    See Also:
    
    Constant Field Values
  - ARCHIVE_REPLAY_SESSION_COUNT_TYPE_ID
```
public static final int ARCHIVE_REPLAY_SESSION_COUNT_TYPE_ID
```
    The type id of the Counter used for tracking the count of active replay sessions.
    
    See Also:
    
    Constant Field Values
  - CLUSTER_CONSENSUS_MODULE_STATE_TYPE_ID
```
public static final int CLUSTER_CONSENSUS_MODULE_STATE_TYPE_ID
```
    Counter type id for the consensus module state.
    
    See Also:
    
    Constant Field Values
  - CLUSTER_NODE_ROLE_TYPE_ID
```
public static final int CLUSTER_NODE_ROLE_TYPE_ID
```
    Counter type id for the cluster node role.
    
    See Also:
    
    Constant Field Values
  - CLUSTER_CONTROL_TOGGLE_TYPE_ID
```
public static final int CLUSTER_CONTROL_TOGGLE_TYPE_ID
```
    Counter type id for the control toggle.
    
    See Also:
    
    Constant Field Values
  - CLUSTER_COMMIT_POSITION_TYPE_ID
```
public static final int CLUSTER_COMMIT_POSITION_TYPE_ID
```
    Counter type id of the commit position.
    
    See Also:
    
    Constant Field Values
  - CLUSTER_RECOVERY_STATE_TYPE_ID
```
public static final int CLUSTER_RECOVERY_STATE_TYPE_ID
```
    Counter representing the Recovery State for the cluster.
    
    See Also:
    
    Constant Field Values
  - CLUSTER_SNAPSHOT_COUNTER_TYPE_ID
```
public static final int CLUSTER_SNAPSHOT_COUNTER_TYPE_ID
```
    Counter type id for count of snapshots taken.
    
    See Also:
    
    Constant Field Values
  - CLUSTER_STANDBY_SNAPSHOT_COUNTER_TYPE_ID
```
public static final int CLUSTER_STANDBY_SNAPSHOT_COUNTER_TYPE_ID
```
    Counter type for count of standby snapshots received.
    
    See Also:
    
    Constant Field Values
  - CLUSTER_ELECTION_STATE_TYPE_ID
```
public static final int CLUSTER_ELECTION_STATE_TYPE_ID
```
    Type id for election state counter.
    
    See Also:
    
    Constant Field Values
  - CLUSTER_BACKUP_STATE_TYPE_ID
```
public static final int CLUSTER_BACKUP_STATE_TYPE_ID
```
    The type id of the Counter used for the backup state.
    
    See Also:
    
    Constant Field Values
  - CLUSTER_BACKUP_LIVE_LOG_POSITION_TYPE_ID
```
public static final int CLUSTER_BACKUP_LIVE_LOG_POSITION_TYPE_ID
```
    The type id of the Counter used for the live log position counter.
    
    See Also:
    
    Constant Field Values
  - CLUSTER_BACKUP_QUERY_DEADLINE_TYPE_ID
```
public static final int CLUSTER_BACKUP_QUERY_DEADLINE_TYPE_ID
```
    The type id of the Counter used for the next query deadline counter.
    
    See Also:
    
    Constant Field Values
  - CLUSTER_BACKUP_ERROR_COUNT_TYPE_ID
```
public static final int CLUSTER_BACKUP_ERROR_COUNT_TYPE_ID
```
    The type id of the Counter used for keeping track of the number of errors that have occurred.
    
    See Also:
    
    Constant Field Values
  - CLUSTER_CONSENSUS_MODULE_ERROR_COUNT_TYPE_ID
```
public static final int CLUSTER_CONSENSUS_MODULE_ERROR_COUNT_TYPE_ID
```
    Counter type id for the consensus module error count.
    
    See Also:
    
    Constant Field Values
  - CLUSTER_CLIENT_TIMEOUT_COUNT_TYPE_ID
```
public static final int CLUSTER_CLIENT_TIMEOUT_COUNT_TYPE_ID
```
    Counter type id for the number of cluster clients which have been timed out.
    
    See Also:
    
    Constant Field Values
  - CLUSTER_INVALID_REQUEST_COUNT_TYPE_ID
```
public static final int CLUSTER_INVALID_REQUEST_COUNT_TYPE_ID
```
    Counter type id for the number of invalid requests which the cluster has received.
    
    See Also:
    
    Constant Field Values
  - CLUSTER_CLUSTERED_SERVICE_ERROR_COUNT_TYPE_ID
```
public static final int CLUSTER_CLUSTERED_SERVICE_ERROR_COUNT_TYPE_ID
```
    Counter type id for the clustered service error count.
    
    See Also:
    
    Constant Field Values
  - CLUSTER_MAX_CYCLE_TIME_TYPE_ID
```
public static final int CLUSTER_MAX_CYCLE_TIME_TYPE_ID
```
    The type id of the Counter used for keeping track of the max duty cycle time of the consensus module.
    
    See Also:
    
    Constant Field Values
  - CLUSTER_CYCLE_TIME_THRESHOLD_EXCEEDED_TYPE_ID
```
public static final int CLUSTER_CYCLE_TIME_THRESHOLD_EXCEEDED_TYPE_ID
```
    The type id of the Counter used for keeping track of the count of cycle time threshold exceeded of the consensus module.
    
    See Also:
    
    Constant Field Values
  - CLUSTER_CLUSTERED_SERVICE_MAX_CYCLE_TIME_TYPE_ID
```
public static final int CLUSTER_CLUSTERED_SERVICE_MAX_CYCLE_TIME_TYPE_ID
```
    The type id of the Counter used for keeping track of the max duty cycle time of the service container.
    
    See Also:
    
    Constant Field Values
  - CLUSTER_CLUSTERED_SERVICE_CYCLE_TIME_THRESHOLD_EXCEEDED_TYPE_ID
```
public static final int CLUSTER_CLUSTERED_SERVICE_CYCLE_TIME_THRESHOLD_EXCEEDED_TYPE_ID
```
    The type id of the Counter used for keeping track of the count of cycle time threshold exceeded of the service container.
    
    See Also:
    
    Constant Field Values
  - CLUSTER_STANDBY_STATE_TYPE_ID
```
public static final int CLUSTER_STANDBY_STATE_TYPE_ID
```
    The type id of the Counter used for the cluster standby state.
    
    See Also:
    
    Constant Field Values
  - CLUSTER_STANDBY_ERROR_COUNT_TYPE_ID
```
public static final int CLUSTER_STANDBY_ERROR_COUNT_TYPE_ID
```
    Counter type id for the clustered service error count.
    
    See Also:
    
    Constant Field Values
  - CLUSTER_STANDBY_HEARTBEAT_RESPONSE_COUNT_TYPE_ID
```
public static final int CLUSTER_STANDBY_HEARTBEAT_RESPONSE_COUNT_TYPE_ID
```
    Counter type for responses to heartbeat request from the cluster.
    
    See Also:
    
    Constant Field Values
  - CLUSTER_STANDBY_CONTROL_TOGGLE_TYPE_ID
```
public static final int CLUSTER_STANDBY_CONTROL_TOGGLE_TYPE_ID
```
    Standby control toggle type id
    
    See Also:
    
    Constant Field Values
  - CLUSTER_STANDBY_MAX_CYCLE_TIME_TYPE_ID
```
public static final int CLUSTER_STANDBY_MAX_CYCLE_TIME_TYPE_ID
```
    The type id of the Counter used for keeping track of the max duty cycle time of the cluster standby.
    
    See Also:
    
    Constant Field Values
  - CLUSTER_STANDBY_CYCLE_TIME_THRESHOLD_EXCEEDED_TYPE_ID
```
public static final int CLUSTER_STANDBY_CYCLE_TIME_THRESHOLD_EXCEEDED_TYPE_ID
```
    The type id of the Counter used for keeping track of the count of cycle time threshold exceeded of the cluster standby.
    
    See Also:
    
    Constant Field Values
  - CLUSTER_STANDBY_SOURCE_MEMBER_ID_TYPE_ID
```
public static final int CLUSTER_STANDBY_SOURCE_MEMBER_ID_TYPE_ID
```
    The type id of the Counter to make visible the memberId that the cluster standby is currently using to as a source for the cluster log.
    
    See Also:
    
    Constant Field Values
  - TRANSITION_MODULE_ERROR_COUNT_TYPE_ID
```
public static final int TRANSITION_MODULE_ERROR_COUNT_TYPE_ID
```
    Counter type id for the transition module error count.
    
    See Also:
    
    Constant Field Values
  - TRANSITION_MODULE_STATE_TYPE_ID
```
public static final int TRANSITION_MODULE_STATE_TYPE_ID
```
    The type if of the Counter used for transition module state
    
    See Also:
    
    Constant Field Values
  - TRANSITION_MODULE_CONTROL_TOGGLE_TYPE_ID
```
public static final int TRANSITION_MODULE_CONTROL_TOGGLE_TYPE_ID
```
    Transition module control toggle type id
    
    See Also:
    
    Constant Field Values
  - TRANSITION_MODULE_MAX_CYCLE_TIME_TYPE_ID
```
public static final int TRANSITION_MODULE_MAX_CYCLE_TIME_TYPE_ID
```
    The type id of the Counter used for keeping track of the max duty cycle time of the transition module.
    
    See Also:
    
    Constant Field Values
  - TRANSITION_MODULE_CYCLE_TIME_THRESHOLD_EXCEEDED_TYPE_ID
```
public static final int TRANSITION_MODULE_CYCLE_TIME_THRESHOLD_EXCEEDED_TYPE_ID
```
    The type id of the Counter used for keeping track of the count of cycle time threshold exceeded of the transition module.
    
    See Also:
    
    Constant Field Values
  - NODE_CONTROL_TOGGLE_TYPE_ID
```
public static final int NODE_CONTROL_TOGGLE_TYPE_ID
```
    The type of the Counter used for handling node specific operations.
    
    See Also:
    
    Constant Field Values
  - CLUSTER_TOTAL_MAX_SNAPSHOT_DURATION_TYPE_ID
```
public static final int CLUSTER_TOTAL_MAX_SNAPSHOT_DURATION_TYPE_ID
```
    The type id of the Counter used for keeping track of the maximum total snapshot duration.
    
    See Also:
    
    Constant Field Values
  - CLUSTER_TOTAL_SNAPSHOT_DURATION_THRESHOLD_EXCEEDED_TYPE_ID
```
public static final int CLUSTER_TOTAL_SNAPSHOT_DURATION_THRESHOLD_EXCEEDED_TYPE_ID
```
    The type id of the Counter used for keeping track of the count total snapshot duration has exceeded the threshold.
    
    See Also:
    
    Constant Field Values
- Method Detail
  - validateCounterTypeId
```
public static void validateCounterTypeId(CountersReader countersReader,
                                         int counterId,
                                         int expectedCounterTypeId)
```
    Checks that the counter specified by counterId has the counterTypeId that matches the specified value. If not it will throw a ConfigurationException.
    
    Parameters:
    
    countersReader - to look up the counter type id.
    
    counterId - counter to reference.
    
    expectedCounterTypeId - the expected type id for the counter.
    
    Throws:
    
    ConfigurationException - if the type id does not match.
    
    IllegalArgumentException - if the counterId is not valid.
  - validateCounterTypeId
```
public static void validateCounterTypeId(Aeron aeron,
                                         Counter counter,
                                         int expectedCounterTypeId)
```
    Convenience overload for validateCounterTypeId(CountersReader, int, int)
    
    Parameters:
    
    aeron - to resolve a counters' reader.
    
    counter - to be checked for the appropriate counterTypeId.
    
    expectedCounterTypeId - the expected type id for the counter.
    
    Throws:
    
    ConfigurationException - if the type id does not match.
    
    IllegalArgumentException - if the counterId is not valid.
    
    See Also:
    
    validateCounterTypeId(CountersReader, int, int)
  - appendVersionInfo
```
public static int appendVersionInfo(MutableDirectBuffer tempBuffer,
                                    int offset,
                                    String fullVersion,
                                    String commitHashCode)
```
    Append version information at the end of the counter's label.
    
    Parameters:
    
    tempBuffer - to append label to.
    
    offset - at which current label data ends.
    
    fullVersion - of the component.
    
    commitHashCode - Git commit SHA.
    
    Returns:
    
    length of the suffix appended.
  - appendToLabel
```
public static int appendToLabel(AtomicBuffer metaDataBuffer,
                                int counterId,
                                String value)
```
    Append specified value at the end of the counter's label as ASCII encoded value up to the CountersReader.MAX_LABEL_LENGTH.
    
    Parameters:
    
    metaDataBuffer - containing the counter metadata.
    
    counterId - to append version info to.
    
    value - to be appended to the label.
    
    Returns:
    
    number of bytes that got appended.
    
    Throws:
    
    IllegalArgumentException - if counterId is invalid or points to non-allocated counter.
  - formatVersionInfo
```
public static String formatVersionInfo(String fullVersion,
                                       String commitHash)
```
    Format version information for display purposes.
    
    Parameters:
    
    fullVersion - of the component.
    
    commitHash - Git commit SHA.
    
    Returns:
    
    formatted String.

Class AeronCounters

Field Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

DRIVER_SYSTEM_COUNTER_TYPE_ID

DRIVER_PUBLISHER_LIMIT_TYPE_ID

DRIVER_SENDER_POSITION_TYPE_ID

DRIVER_RECEIVER_HWM_TYPE_ID

DRIVER_SUBSCRIBER_POSITION_TYPE_ID

DRIVER_RECEIVER_POS_TYPE_ID

DRIVER_SEND_CHANNEL_STATUS_TYPE_ID

DRIVER_RECEIVE_CHANNEL_STATUS_TYPE_ID

DRIVER_SENDER_LIMIT_TYPE_ID

DRIVER_PER_IMAGE_TYPE_ID

DRIVER_HEARTBEAT_TYPE_ID

DRIVER_PUBLISHER_POS_TYPE_ID

DRIVER_SENDER_BPE_TYPE_ID

NAME_RESOLVER_NEIGHBORS_COUNTER_TYPE_ID

NAME_RESOLVER_CACHE_ENTRIES_COUNTER_TYPE_ID

DRIVER_LOCAL_SOCKET_ADDRESS_STATUS_TYPE_ID

FLOW_CONTROL_RECEIVERS_COUNTER_TYPE_ID

MDC_DESTINATIONS_COUNTER_TYPE_ID

ARCHIVE_RECORDING_POSITION_TYPE_ID

ARCHIVE_ERROR_COUNT_TYPE_ID

ARCHIVE_CONTROL_SESSIONS_TYPE_ID

ARCHIVE_MAX_CYCLE_TIME_TYPE_ID

ARCHIVE_CYCLE_TIME_THRESHOLD_EXCEEDED_TYPE_ID

ARCHIVE_RECORDER_MAX_WRITE_TIME_TYPE_ID

ARCHIVE_RECORDER_TOTAL_WRITE_BYTES_TYPE_ID

ARCHIVE_RECORDER_TOTAL_WRITE_TIME_TYPE_ID

ARCHIVE_REPLAYER_MAX_READ_TIME_TYPE_ID

ARCHIVE_REPLAYER_TOTAL_READ_BYTES_TYPE_ID

ARCHIVE_REPLAYER_TOTAL_READ_TIME_TYPE_ID

ARCHIVE_RECORDING_SESSION_COUNT_TYPE_ID

ARCHIVE_REPLAY_SESSION_COUNT_TYPE_ID

CLUSTER_CONSENSUS_MODULE_STATE_TYPE_ID

CLUSTER_NODE_ROLE_TYPE_ID

CLUSTER_CONTROL_TOGGLE_TYPE_ID

CLUSTER_COMMIT_POSITION_TYPE_ID

CLUSTER_RECOVERY_STATE_TYPE_ID

CLUSTER_SNAPSHOT_COUNTER_TYPE_ID

CLUSTER_STANDBY_SNAPSHOT_COUNTER_TYPE_ID

CLUSTER_ELECTION_STATE_TYPE_ID

CLUSTER_BACKUP_STATE_TYPE_ID

CLUSTER_BACKUP_LIVE_LOG_POSITION_TYPE_ID

CLUSTER_BACKUP_QUERY_DEADLINE_TYPE_ID

CLUSTER_BACKUP_ERROR_COUNT_TYPE_ID

CLUSTER_CONSENSUS_MODULE_ERROR_COUNT_TYPE_ID

CLUSTER_CLIENT_TIMEOUT_COUNT_TYPE_ID

CLUSTER_INVALID_REQUEST_COUNT_TYPE_ID

CLUSTER_CLUSTERED_SERVICE_ERROR_COUNT_TYPE_ID

CLUSTER_MAX_CYCLE_TIME_TYPE_ID

CLUSTER_CYCLE_TIME_THRESHOLD_EXCEEDED_TYPE_ID

CLUSTER_CLUSTERED_SERVICE_MAX_CYCLE_TIME_TYPE_ID

CLUSTER_CLUSTERED_SERVICE_CYCLE_TIME_THRESHOLD_EXCEEDED_TYPE_ID

CLUSTER_STANDBY_STATE_TYPE_ID

CLUSTER_STANDBY_ERROR_COUNT_TYPE_ID

CLUSTER_STANDBY_HEARTBEAT_RESPONSE_COUNT_TYPE_ID

CLUSTER_STANDBY_CONTROL_TOGGLE_TYPE_ID

CLUSTER_STANDBY_MAX_CYCLE_TIME_TYPE_ID

CLUSTER_STANDBY_CYCLE_TIME_THRESHOLD_EXCEEDED_TYPE_ID

CLUSTER_STANDBY_SOURCE_MEMBER_ID_TYPE_ID

TRANSITION_MODULE_ERROR_COUNT_TYPE_ID

TRANSITION_MODULE_STATE_TYPE_ID

TRANSITION_MODULE_CONTROL_TOGGLE_TYPE_ID

TRANSITION_MODULE_MAX_CYCLE_TIME_TYPE_ID

TRANSITION_MODULE_CYCLE_TIME_THRESHOLD_EXCEEDED_TYPE_ID

NODE_CONTROL_TOGGLE_TYPE_ID

CLUSTER_TOTAL_MAX_SNAPSHOT_DURATION_TYPE_ID

CLUSTER_TOTAL_SNAPSHOT_DURATION_THRESHOLD_EXCEEDED_TYPE_ID

Method Detail

validateCounterTypeId

validateCounterTypeId

appendVersionInfo

appendToLabel

formatVersionInfo