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120030: kvserver: opt-in "fast" external file snapshotting r=itsbilal a=stevendanna Like SharedSSTs, we may want to send a pebble.ExternalFile's metadata rather than its content during a snapshot. This is opt-in via a cluster setting and is only attempted when the store appears to actually have external files. Epic: none Release note: None 120709: pkg/sql/sqlstats: rework SQL stats flush metrics r=xinhaoz a=abarganier Informs: cockroachdb#119779 Epic: CRDB-24527 This patch renames a few of the core metrics used to track the SQL stats flush job to be more in-line with how the SQL activity update job's metrics work. Primarily, it renames them for consistency. It also changes the general `count` metric to only track successful executions, so we can more easily discern between failed and successful executions. Release note (ops change): Metrics used to track the SQL stats subsystem's task that flushes in-memory stats to persisted storage have been reworked slightly to be more consistent with other metrics used in the subsystem. The metrics are: - `sql.stats.flushes.successful`: Number of times SQL Stats are flushed successfully to persistent storage - `sql.stats.flushes.failed`: Number of attempted SQL Stats flushes that failed with errors - `sql.stats.flush.latency`: The latency of SQL Stats flushes to persistent storage. Includes failed flush attempts Co-authored-by: Steven Danna <[email protected]> Co-authored-by: Alex Barganier <[email protected]>
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