storage: add a timeseries metric for SST count by compression algorithm #123952
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A-storage
Relating to our storage engine (Pebble) on-disk storage.
C-enhancement
Solution expected to add code/behavior + preserve backward-compat (pg compat issues are exception)
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nicktrav
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itsbilal
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May 15, 2024
Previously, we didn't have a metric tracking the compression type(s) of sstables. This change adds that, as a table stat that's collected through the LevelMetadata as an annotator field. This unfortunately had to be a table stat as the compression type isn't known until we open a reader and look at the properties block. Pebble side of cockroachdb/cockroach#123952.
itsbilal
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to itsbilal/pebble
that referenced
this issue
May 15, 2024
Previously, we didn't have a metric tracking the compression type(s) of sstables. This change adds that, as a table stat that's collected through the LevelMetadata as an annotator field. This unfortunately had to be a table stat as the compression type isn't known until we open a reader and look at the properties block. Pebble side of cockroachdb/cockroach#123952.
nicktrav
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to itsbilal/pebble
that referenced
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May 17, 2024
Previously, we didn't have a metric tracking the compression type(s) of sstables. This change adds that, as a table stat that's collected through the LevelMetadata as an annotator field. This unfortunately had to be a table stat as the compression type isn't known until we open a reader and look at the properties block. Pebble side of cockroachdb/cockroach#123952.
nicktrav
pushed a commit
to cockroachdb/pebble
that referenced
this issue
May 17, 2024
Previously, we didn't have a metric tracking the compression type(s) of sstables. This change adds that, as a table stat that's collected through the LevelMetadata as an annotator field. This unfortunately had to be a table stat as the compression type isn't known until we open a reader and look at the properties block. Pebble side of cockroachdb/cockroach#123952.
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Expose a timeseries metric that will allow us to slice the SSTable count by compression algorithm (snappy vs zstd).
Jira issue: CRDB-38624
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