mirror of https://github.com/facebook/rocksdb.git
a8a422e962
Summary: The goal of this change is to allow changes to the "current" (in FileSystem) file temperatures to feed back into DB metadata, so that they can inform decisions and stats reporting. In part because of modular code factoring, it doesn't seem easy to do this automagically, where opening an SST file and observing current Temperature different from expected would trigger a change in metadata and DB manifest write (essentially giving the deep read path access to the write path). It is also difficult to do this while the DB is open because of the limitations of LogAndApply. This change allows updating file temperature metadata on a closed DB using an experimental utility function UpdateManifestForFilesState() or `ldb update_manifest --update_temperatures`. This should suffice for "migration" scenarios where outside tooling has placed or re-arranged DB files into a (different) tiered configuration without going through RocksDB itself (currently, only compaction can change temperature metadata). Some details: * Refactored and added unit test for `ldb unsafe_remove_sst_file` because of shared functionality * Pulled in autovector.h changes from https://github.com/facebook/rocksdb/issues/9546 to fix SuperVersionContext move constructor (related to an older draft of this change) Possible follow-up work: * Support updating manifest with file checksums, such as when a new checksum function is used and want existing DB metadata updated for it. * It's possible that for some repair scenarios, lighter weight than full repair, we might want to support UpdateManifestForFilesState() to modify critical file details like size or checksum using same algorithm. But let's make sure these are differentiated from modifying file details in ways that don't suspect corruption (or require extreme trust). Pull Request resolved: https://github.com/facebook/rocksdb/pull/9683 Test Plan: unit tests added Reviewed By: jay-zhuang Differential Revision: D34798828 Pulled By: pdillinger fbshipit-source-id: cfd83e8fb10761d8c9e7f9c020d68c9106a95554 |
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| .. | ||
| aligned_buffer.h | ||
| autovector.h | ||
| autovector_test.cc | ||
| bloom_impl.h | ||
| bloom_test.cc | ||
| build_version.cc.in | ||
| cast_util.h | ||
| channel.h | ||
| coding.cc | ||
| coding.h | ||
| coding_lean.h | ||
| coding_test.cc | ||
| compaction_job_stats_impl.cc | ||
| comparator.cc | ||
| compression.cc | ||
| compression.h | ||
| compression_context_cache.cc | ||
| compression_context_cache.h | ||
| concurrent_task_limiter_impl.cc | ||
| concurrent_task_limiter_impl.h | ||
| core_local.h | ||
| crc32c.cc | ||
| crc32c.h | ||
| crc32c_arm64.cc | ||
| crc32c_arm64.h | ||
| crc32c_ppc.c | ||
| crc32c_ppc.h | ||
| crc32c_ppc_asm.S | ||
| crc32c_ppc_constants.h | ||
| crc32c_test.cc | ||
| defer.h | ||
| defer_test.cc | ||
| duplicate_detector.h | ||
| dynamic_bloom.cc | ||
| dynamic_bloom.h | ||
| dynamic_bloom_test.cc | ||
| fastrange.h | ||
| file_checksum_helper.cc | ||
| file_checksum_helper.h | ||
| file_reader_writer_test.cc | ||
| filelock_test.cc | ||
| filter_bench.cc | ||
| gflags_compat.h | ||
| hash.cc | ||
| hash.h | ||
| hash128.h | ||
| hash_map.h | ||
| hash_test.cc | ||
| heap.h | ||
| heap_test.cc | ||
| kv_map.h | ||
| log_write_bench.cc | ||
| math.h | ||
| math128.h | ||
| murmurhash.cc | ||
| murmurhash.h | ||
| mutexlock.h | ||
| ppc-opcode.h | ||
| random.cc | ||
| random.h | ||
| random_test.cc | ||
| rate_limiter.cc | ||
| rate_limiter.h | ||
| rate_limiter_test.cc | ||
| repeatable_thread.h | ||
| repeatable_thread_test.cc | ||
| ribbon_alg.h | ||
| ribbon_config.cc | ||
| ribbon_config.h | ||
| ribbon_impl.h | ||
| ribbon_test.cc | ||
| set_comparator.h | ||
| slice.cc | ||
| slice_test.cc | ||
| slice_transform_test.cc | ||
| status.cc | ||
| stderr_logger.h | ||
| stop_watch.h | ||
| string_util.cc | ||
| string_util.h | ||
| thread_guard.h | ||
| thread_list_test.cc | ||
| thread_local.cc | ||
| thread_local.h | ||
| thread_local_test.cc | ||
| thread_operation.h | ||
| threadpool_imp.cc | ||
| threadpool_imp.h | ||
| timer.h | ||
| timer_queue.h | ||
| timer_queue_test.cc | ||
| timer_test.cc | ||
| user_comparator_wrapper.h | ||
| vector_iterator.h | ||
| work_queue.h | ||
| work_queue_test.cc | ||
| xxhash.cc | ||
| xxhash.h | ||
| xxph3.h | ||