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5f025ea832
Summary: This is groundwork for adding garbage collection support to BlobDB. The patch adds logic that keeps track of the oldest blob file referred to by each SST file. The oldest blob file is identified during flush/ compaction (similarly to how the range of keys covered by the SST is identified), and persisted in the manifest as a custom field of the new file edit record. Blob indexes with TTL are ignored for the purposes of identifying the oldest blob file (since such blob files are cleaned up by the TTL logic in BlobDB). Pull Request resolved: https://github.com/facebook/rocksdb/pull/5903 Test Plan: Added new unit tests; also ran db_bench in BlobDB mode, inspected the manifest using ldb, and confirmed (by scanning the SST files using sst_dump) that the value of the oldest blob file number field matches the contents of the file for each SST. Differential Revision: D17859997 Pulled By: ltamasi fbshipit-source-id: 21662c137c6259a6af70446faaf3a9912c550e90 |
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| .. | ||
| db_impl.cc | ||
| db_impl.h | ||
| db_impl_compaction_flush.cc | ||
| db_impl_debug.cc | ||
| db_impl_experimental.cc | ||
| db_impl_files.cc | ||
| db_impl_open.cc | ||
| db_impl_readonly.cc | ||
| db_impl_readonly.h | ||
| db_impl_secondary.cc | ||
| db_impl_secondary.h | ||
| db_impl_write.cc | ||
| db_secondary_test.cc | ||