Prometheus 2.40 WAL segment size transition for low-traffic disk reduction
For a Prometheus instance handling roughly 10 samples per second, the goal is to lower the write-ahead log segment size from the long-standing 128 MiB default to a smaller value such as 8–16 MiB, using the --storage.tsdb.wal-segment-size flag introduced in version 2.40. The intent is to reduce the storage footprint and limit the amount of unreclaimed data du
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