fork of https://github.com/oxigraph/rocksdb and https://github.com/facebook/rocksdb for nextgraph and oxigraph

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Levi Tamasi 9e3ace42a4 Add statistics for BlobDB GC (#6296) ... Summary: The patch adds statistics support to the new BlobDB garbage collection implementation; namely, it adds support for the following (pre-existing) tickers: `BLOB_DB_GC_NUM_FILES`: the number of blob files obsoleted by the GC logic. `BLOB_DB_GC_NUM_NEW_FILES`: the number of new blob files generated by the GC logic. `BLOB_DB_GC_FAILURES`: the number of failed GC passes (where a GC pass is equivalent to a (sub)compaction). `BLOB_DB_GC_NUM_KEYS_RELOCATED`: the number of blobs relocated to new blob files by the GC logic. `BLOB_DB_GC_BYTES_RELOCATED`: the total size of blobs relocated to new blob files. The tickers `BLOB_DB_GC_NUM_KEYS_OVERWRITTEN`, `BLOB_DB_GC_NUM_KEYS_EXPIRED`, `BLOB_DB_GC_BYTES_OVERWRITTEN`, `BLOB_DB_GC_BYTES_EXPIRED`, and `BLOB_DB_GC_MICROS` are not relevant for the new GC logic, and are thus marked deprecated. The patch also adds a couple of log messages that log the number and total size of blobs encountered and relocated during a GC pass, as well as the number of blob files created and obsoleted. Pull Request resolved: https://github.com/facebook/rocksdb/pull/6296 Test Plan: Extended unit tests and used the BlobDB mode of `db_bench`. Differential Revision: D19402513 Pulled By: ltamasi fbshipit-source-id: d53d2bfbf4928a1db1e9346c67ebb9007b8932ec		5 years ago
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blob_compaction_filter.cc	Add statistics for BlobDB GC (#6296)	5 years ago
blob_compaction_filter.h	Add statistics for BlobDB GC (#6296)	5 years ago
blob_db.cc	Log garbage_collection_cutoff alongside the other BlobDB options	5 years ago
blob_db.h	Remove earlier partial BlobDB GC implementation (#6278)	5 years ago
blob_db_gc_stats.h	Add statistics for BlobDB GC (#6296)	5 years ago
blob_db_impl.cc	Add statistics for BlobDB GC (#6296)	5 years ago
blob_db_impl.h	Remove earlier partial BlobDB GC implementation (#6278)	5 years ago
blob_db_impl_filesnapshot.cc	Add file number/oldest referenced blob file number to {Sst,Live}FileMetaData (#6011)	5 years ago
blob_db_iterator.h	Remove earlier partial BlobDB GC implementation (#6278)	5 years ago
blob_db_listener.h	BlobDB: Maintain mapping between blob files and SSTs (#6020)	5 years ago
blob_db_test.cc	Add statistics for BlobDB GC (#6296)	5 years ago
blob_dump_tool.cc	Introduce a new storage specific Env API (#5761)	5 years ago
blob_dump_tool.h	Divide file_reader_writer.h and .cc (#5803)	5 years ago
blob_file.cc	Introduce a new storage specific Env API (#5761)	5 years ago
blob_file.h	Remove earlier partial BlobDB GC implementation (#6278)	5 years ago
blob_log_format.cc	utilities: Fix build failure with -Werror=maybe-uninitialized (#5074)	6 years ago
blob_log_format.h	Refactor blob file creation logic (#6066)	5 years ago
blob_log_reader.cc	Divide file_reader_writer.h and .cc (#5803)	5 years ago
blob_log_reader.h	Divide file_reader_writer.h and .cc (#5803)	5 years ago
blob_log_writer.cc	Divide file_reader_writer.h and .cc (#5803)	5 years ago
blob_log_writer.h	Use delete to disable automatic generated methods. (#5009)	5 years ago