Add the metric <prefix>.cluster.raft.prune_index
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NataliaIvakina
commented
Oct 3, 2024
| |<prefix>.cluster.raft.append_index|The append index of the Raft log. Each index represents a write transaction (possibly internal) proposed for commitment. The values mostly increase, but sometimes they can decrease as a consequence of leader changes. The append index should always be bigger than or equal to the commit index. (gauge) | ||
| |<prefix>.cluster.raft.commit_index|The commit index of the Raft log. Represents the commitment of previously appended entries. Its value increases monotonically if you do not unbind the cluster state. The commit index should always be less than or equal to the append index and bigger than or equal to the applied index. (gauge) | ||
| |<prefix>.cluster.raft.applied_index|The applied index of the Raft log. Represents the application of the committed Raft log entries to the database and internal state. The applied index should always be less than or equal to the commit index. The difference between this and the commit index can be used to monitor how up-to-date the follower database is. (gauge) | ||
| |<prefix>.cluster.raft.prune_index label:new[Introduced in 5.25]|The head index of the Raft log. Represents the oldest Raft index that exists in the log. A prune event will increase this value. This can be used to track how much history of Raft logs the member has |
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Do we need a metric's type here? gauge? counter? histogram?
NataliaIvakina
commented
Oct 3, 2024
NataliaIvakina
commented
Oct 10, 2024
Co-authored-by: NataliaIvakina <[email protected]>
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Thanks for the documentation updates. The preview documentation has now been torn down - reopening this PR will republish it. |
RagnarW
approved these changes
Oct 11, 2024
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Related to the PR#23551