com.rabbitmq.stream

Interface StreamStats

public interface StreamStats

Statistics on a stream.

See Also:

Environment.queryStreamStats(String)

Method Summary

Modifier and Type	Method and Description
long	committedChunkId() The ID (offset) of the committed chunk (block of messages) in the stream.
long	firstOffset() The first offset in the stream.

Method Detail

firstOffset

long firstOffset()

The first offset in the stream.

Returns:

first offset in the stream

Throws:

NoOffsetException - if there is no first offset yet

committedChunkId

long committedChunkId()

The ID (offset) of the committed chunk (block of messages) in the stream.

It is the offset of the first message in the last chunk confirmed by a quorum of the stream cluster members (leader and replicas).

The committed chunk ID is a good indication of what the last offset of a stream can be at a given time. The value can be stale as soon as the application reads it though, as the committed chunk ID for a stream that is published to changes all the time.

Returns:

committed offset in this stream

Throws:

NoOffsetException - if there is no committed chunk yet

See Also:

MessageHandler.Context.committedChunkId()