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419b93c56f
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Yi Wu 419b93c56f Blob DB: not writing sequence number as blob record footer 
Summary:
Previously each time we write a blob we write blog_record_header + key + value + blob_record_footer to blob log. The footer only contains a sequence and a crc for the sequence number. The sequence number was used in garbage collection to verify the value is recent. After #2703 we moved to use optimistic transaction and no longer use sequence number from the footer. Remove the footer altogether.

There's another usage of sequence number and we are keeping it: Each blob log file keep track of sequence number range of keys in it, and use it to check if it is reference by a snapshot, before being deleted.
Closes https://github.com/facebook/rocksdb/pull/3005

Differential Revision: D6057585

Pulled By: yiwu-arbug

fbshipit-source-id: d6da53c457a316e9723f359a1b47facfc3ffe090
2017-11-02 23:07:27 -07:00
..
backupable Revert "comment out unused parameters" 2017-07-21 18:26:26 -07:00
blob_db Blob DB: not writing sequence number as blob record footer 2017-11-02 23:07:27 -07:00
cassandra Enable Cassandra merge operator to be called with a single merge operand 2017-08-17 15:01:09 -07:00
checkpoint Revert "comment out unused parameters" 2017-07-21 18:26:26 -07:00
compaction_filters Revert "comment out unused parameters" 2017-07-21 18:26:26 -07:00
convenience Change RocksDB License 2017-07-15 16:11:23 -07:00
date_tiered Add Iterator::Refresh() 2017-07-24 10:54:37 -07:00
document Revert "comment out unused parameters" 2017-07-21 18:26:26 -07:00
geodb Change RocksDB License 2017-07-15 16:11:23 -07:00
leveldb_options Change RocksDB License 2017-07-15 16:11:23 -07:00
lua CodeMod: Prefer ADD_FAILURE() over EXPECT_TRUE(false), et cetera 2017-07-16 21:26:02 -07:00
memory Change RocksDB License 2017-07-15 16:11:23 -07:00
merge_operators allow nullptr Slice only as sentinel 2017-08-23 10:56:06 -07:00
option_change_migration Change RocksDB License 2017-07-15 16:11:23 -07:00
options Replace dynamic_cast<> 2017-07-28 16:27:16 -07:00
persistent_cache block_cache_tier: fix gcc-7 warnings 2017-08-10 11:58:53 -07:00
redis Revert "comment out unused parameters" 2017-07-21 18:26:26 -07:00
simulator_cache CacheActivityLogger, component to log cache activity into a file 2017-07-28 12:36:48 -07:00
spatialdb Revert "comment out unused parameters" 2017-07-21 18:26:26 -07:00
table_properties_collectors Revert "comment out unused parameters" 2017-07-21 18:26:26 -07:00
transactions WriteAtPrepare: Efficient read from snapshot list 2017-08-26 01:00:38 -07:00
ttl Revert "comment out unused parameters" 2017-07-21 18:26:26 -07:00
write_batch_with_index Use PinnableSlice in Transactions 2017-08-23 10:11:45 -07:00
col_buf_decoder.cc Change RocksDB License 2017-07-15 16:11:23 -07:00
col_buf_decoder.h Revert "comment out unused parameters" 2017-07-21 18:26:26 -07:00
col_buf_encoder.cc Change RocksDB License 2017-07-15 16:11:23 -07:00
col_buf_encoder.h Change RocksDB License 2017-07-15 16:11:23 -07:00
column_aware_encoding_exp.cc Change RocksDB License 2017-07-15 16:11:23 -07:00
column_aware_encoding_test.cc Change RocksDB License 2017-07-15 16:11:23 -07:00
column_aware_encoding_util.cc Replace dynamic_cast<> 2017-07-28 16:27:16 -07:00
column_aware_encoding_util.h Change RocksDB License 2017-07-15 16:11:23 -07:00
debug.cc Change RocksDB License 2017-07-15 16:11:23 -07:00
env_librados_test.cc Change RocksDB License 2017-07-15 16:11:23 -07:00
env_librados.cc Remove double buffering on RandomRead on Windows. 2017-04-27 12:30:05 -07:00
env_librados.md Add EnvLibrados - RocksDB Env of RADOS (#1222) 2016-07-21 11:16:34 -07:00
env_mirror_test.cc Change RocksDB License 2017-07-15 16:11:23 -07:00
env_mirror.cc Change RocksDB License 2017-07-15 16:11:23 -07:00
env_timed_test.cc Change RocksDB License 2017-07-15 16:11:23 -07:00
env_timed.cc Change RocksDB License 2017-07-15 16:11:23 -07:00
merge_operators.h Change RocksDB License 2017-07-15 16:11:23 -07:00
object_registry_test.cc Revert "comment out unused parameters" 2017-07-21 18:26:26 -07:00
util_merge_operators_test.cc Change RocksDB License 2017-07-15 16:11:23 -07:00