issue: #32995
To speed up the construction and querying of Bloom filters, we chose a
blocked Bloom filter instead of a basic Bloom filter implementation.
WARN: This PR is compatible with old version bf impl, but if fall back
to old milvus version, it may causes bloom filter deserialize failed.
In single Bloom filter test cases with a capacity of 1,000,000 and a
false positive rate (FPR) of 0.001, the blocked Bloom filter is 5 times
faster than the basic Bloom filter in both querying and construction, at
the cost of a 30% increase in memory usage.
- Block BF construct time {"time": "54.128131ms"}
- Block BF size {"size": 3021578}
- Block BF Test cost {"time": "55.407352ms"}
- Basic BF construct time {"time": "210.262183ms"}
- Basic BF size {"size": 2396308}
- Basic BF Test cost {"time": "192.596229ms"}
In multi Bloom filter test cases with a capacity of 100,000, an FPR of
0.001, and 100 Bloom filters, we reuse the primary key locations for all
Bloom filters to avoid repeated hash computations. As a result, the
blocked Bloom filter is also 5 times faster than the basic Bloom filter
in querying.
- Block BF TestLocation cost {"time": "529.97183ms"}
- Basic BF TestLocation cost {"time": "3.197430181s"}
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Signed-off-by: Wei Liu <wei.liu@zilliz.com>
Related to #27675
Use `struct{}` instead `error` for sync task future result type to
reduce result size and preventing logci error.
Also change some unused parameter to `_` to suppress lint warning
Signed-off-by: Congqi Xia <congqi.xia@zilliz.com>
See also #27675
Fix logic problem introduced by #29413, which is serializer tries to
merge statslog list while level segments do not have statslog. This
shall result returning error. `writeBufferBase` ignores this error but
it shall only ignore `ErrSegmentNotFound`.
This PR add logic checking segment level before execution of merging
statslog list. And add error type check for getSyncTask failure.
Signed-off-by: Congqi Xia <congqi.xia@zilliz.com>
See also #27675
Since serialization segment buffer does not related to sync manager can
shall be done before submit into sync manager. So that the pk statistic
file could be more accurate and reduce complex logic inside sync
manager.
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Signed-off-by: Congqi Xia <congqi.xia@zilliz.com>
