feat: impl parallel get_byte_ranges for ObjectStoreReader #450
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jiacai2050
reviewed
Dec 5, 2022
ShiKaiWi
reviewed
Dec 6, 2022
ShiKaiWi
reviewed
Dec 7, 2022
jiacai2050
reviewed
Dec 7, 2022
analytic_engine/src/sst/metrics.rs
Outdated
| pub static ref SST_GET_RANGE_HISTOGRAM: Histogram = register_histogram!( | ||
| "sst_get_range_length", | ||
| "Histogram for sst get range length", | ||
| vec!(100.0, 500.0, 1024.0, 1024.0 * 5.0, 1024.0 * 100.0, 1024.0 * 1000.0 * 5.0, 1024.0 * 1000.0 * 1000.0, 1024.0 * 1000.0 * 1000.0 * 5.0) |
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https://docs.rs/prometheus/latest/prometheus/fn.exponential_buckets.html
exponential_buckets（100, 2, 10);
This range cover [100B, 2K), this is enough for rowgroup with 8192 rows.
chunshao90
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May 15, 2023
* feat: impl parallel get_byte_ranges for ObjectStoreReader * chore: add sst_get_range_length_histogram in ObjectStoreReader * fix ci * refactor by CR
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Which issue does this PR close?
Closes #
Rationale for this change
The default implementation of
get_byte_rangesinAsyncFileReaderis sequentially.Refer to: https://github.com/apache/arrow-rs/blob/99ced481308e870f69792e49cd23a529fa3ccc70/parquet/src/arrow/async_reader.rs#L124-L140
What changes are included in this PR?
get_byte_rangesusingget_rangesinObjectStore.get_range.Are there any user-facing changes?
No.
How does this change test
Manual testing.