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rocksdb/db/blob
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Yanqin Jin b512f4bc76 Batch blob read IO for MultiGet (#8699) 
Summary:
In batched `MultiGet()`, RocksDB batches blob read IO and uses `RandomAccessFileReader::MultiRead()`
to read the blobs instead of issuing multiple `Read()`.

Pull Request resolved: https://github.com/facebook/rocksdb/pull/8699

Test Plan:
```
make check
```

Reviewed By: ltamasi

Differential Revision: D31030861

Pulled By: riversand963

fbshipit-source-id: a0df6060cbfd54cff9515a4eee08807b1dbcb0c8
2021-09-17 19:23:13 -07:00
..
blob_constants.h Move BlobDB related files under db/ to db/blob/ (#6519) 2020-03-12 11:00:56 -07:00
blob_counting_iterator_test.cc Add an internal iterator that can measure the inflow of blobs (#8443) 2021-06-23 10:25:47 -07:00
blob_counting_iterator.h Log the amount of blob garbage generated by compactions in the MANIFEST (#8450) 2021-06-24 16:11:56 -07:00
blob_fetcher.cc Support for Merge in Integrated BlobDB with base values (#8292) 2021-06-10 12:58:37 -07:00
blob_fetcher.h Support for Merge in Integrated BlobDB with base values (#8292) 2021-06-10 12:58:37 -07:00
blob_file_addition_test.cc Print blob file checksums as hex (#8437) 2021-06-22 09:49:44 -07:00
blob_file_addition.cc Print blob file checksums as hex (#8437) 2021-06-22 09:49:44 -07:00
blob_file_addition.h Move BlobDB related files under db/ to db/blob/ (#6519) 2020-03-12 11:00:56 -07:00
blob_file_builder_test.cc Expose blob file information through the EventListener interface (#8675) 2021-09-16 17:23:36 -07:00
blob_file_builder.cc Expose blob file information through the EventListener interface (#8675) 2021-09-16 17:23:36 -07:00
blob_file_builder.h Expose blob file information through the EventListener interface (#8675) 2021-09-16 17:23:36 -07:00
blob_file_cache_test.cc Rename ImmutableOptions variables (#8409) 2021-06-16 16:51:38 -07:00
blob_file_cache.cc Rename ImmutableOptions variables (#8409) 2021-06-16 16:51:38 -07:00
blob_file_cache.h Rename ImmutableOptions variables (#8409) 2021-06-16 16:51:38 -07:00
blob_file_completion_callback.h Expose blob file information through the EventListener interface (#8675) 2021-09-16 17:23:36 -07:00
blob_file_garbage_test.cc Move BlobDB related files under db/ to db/blob/ (#6519) 2020-03-12 11:00:56 -07:00
blob_file_garbage.cc Move BlobDB related files under db/ to db/blob/ (#6519) 2020-03-12 11:00:56 -07:00
blob_file_garbage.h Move BlobDB related files under db/ to db/blob/ (#6519) 2020-03-12 11:00:56 -07:00
blob_file_meta.cc Add BlobMetaData retrieval methods (#8273) 2021-06-28 08:13:29 -07:00
blob_file_meta.h Add BlobMetaData retrieval methods (#8273) 2021-06-28 08:13:29 -07:00
blob_file_reader_test.cc Batch blob read IO for MultiGet (#8699) 2021-09-17 19:23:13 -07:00
blob_file_reader.cc Batch blob read IO for MultiGet (#8699) 2021-09-17 19:23:13 -07:00
blob_file_reader.h Batch blob read IO for MultiGet (#8699) 2021-09-17 19:23:13 -07:00
blob_garbage_meter_test.cc Add a class for measuring the amount of garbage generated during compaction (#8426) 2021-06-21 22:25:30 -07:00
blob_garbage_meter.cc Add a class for measuring the amount of garbage generated during compaction (#8426) 2021-06-21 22:25:30 -07:00
blob_garbage_meter.h Add a class for measuring the amount of garbage generated during compaction (#8426) 2021-06-21 22:25:30 -07:00
blob_index.h Batch blob read IO for MultiGet (#8699) 2021-09-17 19:23:13 -07:00
blob_log_format.cc Introduce BlobFileCache and add support for blob files to Get() (#7540) 2020-10-15 13:04:47 -07:00
blob_log_format.h Add a class for measuring the amount of garbage generated during compaction (#8426) 2021-06-21 22:25:30 -07:00
blob_log_sequential_reader.cc Use SystemClock* instead of std::shared_ptr<SystemClock> in lower level routines (#8033) 2021-03-15 04:34:11 -07:00
blob_log_sequential_reader.h Fix a issue with initializing blob header buffer (#8537) 2021-08-02 17:15:06 -07:00
blob_log_writer.cc Use SystemClock* instead of std::shared_ptr<SystemClock> in lower level routines (#8033) 2021-03-15 04:34:11 -07:00
blob_log_writer.h Use SystemClock* instead of std::shared_ptr<SystemClock> in lower level routines (#8033) 2021-03-15 04:34:11 -07:00
db_blob_basic_test.cc Batch blob read IO for MultiGet (#8699) 2021-09-17 19:23:13 -07:00
db_blob_compaction_test.cc Support custom env in db_blob_{basic,compaction,corruption,index}_test (#8817) 2021-09-07 11:13:56 -07:00
db_blob_corruption_test.cc Support custom env in db_blob_{basic,compaction,corruption,index}_test (#8817) 2021-09-07 11:13:56 -07:00
db_blob_index_test.cc Support custom env in db_blob_{basic,compaction,corruption,index}_test (#8817) 2021-09-07 11:13:56 -07:00