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Zhichao Cao f44e69c64a Use DbSessionId as cache key prefix when secondary cache is enabled (#8360) 
Summary:
Currently, we either use the file system inode or a monotonically incrementing runtime ID as the block cache key prefix. However, if we use a monotonically incrementing runtime ID (in the case that the file system does not support inode id generation), in some cases, it cannot ensure uniqueness (e.g., we have secondary cache migrated from host to host). We use DbSessionID (20 bytes) + current file number (at most 10 bytes) as the new cache block key prefix when the secondary cache is enabled. So can accommodate scenarios such as transfer of cache state across hosts.

Pull Request resolved: https://github.com/facebook/rocksdb/pull/8360

Test Plan: add the test to lru_cache_test

Reviewed By: pdillinger

Differential Revision: D29006215

Pulled By: zhichao-cao

fbshipit-source-id: 6cff686b38d83904667a2bd39923cd030df16814
2021-06-10 11:02:43 -07:00
..
backupable Deprecate obsolete "backupable db" from public APIs (#8274) 2021-05-07 13:53:15 -07:00
blob_db Snapshot release triggered compaction without multiple tombstones (#8357) 2021-06-04 00:21:40 -07:00
cassandra Add more tests for assert status checked (#7524) 2020-12-22 23:45:58 -08:00
checkpoint Fix GetLiveFiles() returning OPTIONS-000000 (#8268) 2021-05-05 12:54:46 -07:00
compaction_filters Compaction filter support for BlobDB (#6850) 2020-06-29 17:32:14 -07:00
convenience Add a SystemClock class to capture the time functions of an Env (#7858) 2021-01-25 22:09:11 -08:00
leveldb_options Replace namespace name "rocksdb" with ROCKSDB_NAMESPACE (#6433) 2020-02-20 12:09:57 -08:00
memory Make types of Immutable/Mutable Options fields match that of the underlying Option (#8176) 2021-04-22 20:43:54 -07:00
merge_operators No elide constructors (#7798) 2020-12-23 16:55:53 -08:00
option_change_migration Assert unlimited max_open_files for FIFO compaction. (#8172) 2021-04-14 12:05:47 -07:00
options Add ObjectRegistry to ConfigOptions (#8166) 2021-05-11 06:47:22 -07:00
persistent_cache Use SystemClock* instead of std::shared_ptr<SystemClock> in lower level routines (#8033) 2021-03-15 04:34:11 -07:00
simulator_cache Use deleters to label cache entries and collect stats (#8297) 2021-05-19 16:51:13 -07:00
table_properties_collectors Add more tests for assert status checked (#7524) 2020-12-22 23:45:58 -08:00
trace Remove Legacy and Custom FileWrapper classes from header files (#7851) 2021-01-28 22:10:32 -08:00
transactions Snapshot release triggered compaction without multiple tombstones (#8357) 2021-06-04 00:21:40 -07:00
ttl Use SystemClock* instead of std::shared_ptr<SystemClock> in lower level routines (#8033) 2021-03-15 04:34:11 -07:00
write_batch_with_index Fix MultiGet with PinnableSlices and Merge for WBWI (#8299) 2021-05-18 14:35:47 -07:00
debug.cc In ParseInternalKey(), include corrupt key info in Status (#7515) 2020-10-28 10:12:58 -07:00
env_librados.cc Replace namespace name "rocksdb" with ROCKSDB_NAMESPACE (#6433) 2020-02-20 12:09:57 -08:00
env_librados.md Add EnvLibrados - RocksDB Env of RADOS (#1222) 2016-07-21 11:16:34 -07:00
env_librados_test.cc Replace namespace name "rocksdb" with ROCKSDB_NAMESPACE (#6433) 2020-02-20 12:09:57 -08:00
env_mirror.cc Add new Append API with DataVerificationInfo to Env WritableFile (#8071) 2021-03-19 11:44:13 -07:00
env_mirror_test.cc Replace namespace name "rocksdb" with ROCKSDB_NAMESPACE (#6433) 2020-02-20 12:09:57 -08:00
env_timed.cc Make ChRootEnv, EncryptedEnv, and TimedEnv into FileSystems (#7968) 2021-03-15 19:50:11 -07:00
env_timed_test.cc Make env*_test work with ASSERT_STATUS_CHECKED (#7176) 2020-07-28 22:59:48 -07:00
fault_injection_env.cc No elide constructors (#7798) 2020-12-23 16:55:53 -08:00
fault_injection_env.h Add new Append API with DataVerificationInfo to Env WritableFile (#8071) 2021-03-19 11:44:13 -07:00
fault_injection_fs.cc Use DbSessionId as cache key prefix when secondary cache is enabled (#8360) 2021-06-10 11:02:43 -07:00
fault_injection_fs.h Use DbSessionId as cache key prefix when secondary cache is enabled (#8360) 2021-06-10 11:02:43 -07:00
merge_operators.h Replace namespace name "rocksdb" with ROCKSDB_NAMESPACE (#6433) 2020-02-20 12:09:57 -08:00
object_registry.cc Add ObjectRegistry to ConfigOptions (#8166) 2021-05-11 06:47:22 -07:00
object_registry_test.cc Add ObjectRegistry to ConfigOptions (#8166) 2021-05-11 06:47:22 -07:00
util_merge_operators_test.cc Replace namespace name "rocksdb" with ROCKSDB_NAMESPACE (#6433) 2020-02-20 12:09:57 -08:00