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Maysam Yabandeh 60beefd6e0 WritePrepared Txn: Advance seq one per batch 
Summary:
By default the seq number in DB is increased once per written key. WritePrepared txns requires the seq to be increased once per the entire batch so that the seq would be used as the prepare timestamp by which the transaction is identified. Also we need to increase seq for the commit marker since it would give a unique id to the commit timestamp of transactions.

Two unit tests are added to verify our understanding of how the seq should be increased. The recovery path requires much more work and is left to another patch.
Closes https://github.com/facebook/rocksdb/pull/2885

Differential Revision: D5837843

Pulled By: maysamyabandeh

fbshipit-source-id: a08960b93d727e1cf438c254d0c2636fb133cc1c
2017-09-18 14:45:08 -07:00
..
utilities support opening zero backups during engine init 2017-09-12 13:26:34 -07:00
advanced_options.h Remove 'experimental' comment around level_compaction_dynamic_level_bytes option 2017-09-13 15:56:24 -07:00
c.h Added save points for transactions C API 2017-09-14 14:18:59 -07:00
cache.h Revert "comment out unused parameters" 2017-07-21 18:26:26 -07:00
cleanable.h enable PinnableSlice for RowCache 2017-07-17 15:08:30 -07:00
compaction_filter.h Revert "comment out unused parameters" 2017-07-21 18:26:26 -07:00
compaction_job_stats.h Change RocksDB License 2017-07-15 16:11:23 -07:00
comparator.h Replace dynamic_cast<> 2017-07-28 16:27:16 -07:00
convenience.h add VerifyChecksum() to db.h 2017-08-09 15:58:13 -07:00
db_bench_tool.h Change RocksDB License 2017-07-15 16:11:23 -07:00
db_dump_tool.h Change RocksDB License 2017-07-15 16:11:23 -07:00
db.h Extend property map with compaction stats 2017-08-30 15:26:55 -07:00
env_encryption.h Change RocksDB License 2017-07-15 16:11:23 -07:00
env.h EnvWrapper: Forward more functions 2017-08-30 15:26:50 -07:00
experimental.h Change RocksDB License 2017-07-15 16:11:23 -07:00
filter_policy.h Fix missing stdlib include required for abort() 2017-08-15 12:32:11 -07:00
flush_block_policy.h Change RocksDB License 2017-07-15 16:11:23 -07:00
iostats_context.h Change RocksDB License 2017-07-15 16:11:23 -07:00
iterator.h Add Iterator::Refresh() 2017-07-24 10:54:37 -07:00
ldb_tool.h Change RocksDB License 2017-07-15 16:11:23 -07:00
listener.h Revert "comment out unused parameters" 2017-07-21 18:26:26 -07:00
memtablerep.h Revert "comment out unused parameters" 2017-07-21 18:26:26 -07:00
merge_operator.h Allow merge operator to be called even with a single operand 2017-08-16 23:42:00 -07:00
metadata.h Change RocksDB License 2017-07-15 16:11:23 -07:00
options.h WritePrepared Txn: Advance seq one per batch 2017-09-18 14:45:08 -07:00
perf_context.h perf_context measure user bytes read 2017-08-18 11:43:33 -07:00
perf_level.h Change RocksDB License 2017-07-15 16:11:23 -07:00
persistent_cache.h Change RocksDB License 2017-07-15 16:11:23 -07:00
rate_limiter.h Revert "comment out unused parameters" 2017-07-21 18:26:26 -07:00
slice_transform.h Revert "comment out unused parameters" 2017-07-21 18:26:26 -07:00
slice.h allow nullptr Slice only as sentinel 2017-08-23 10:56:06 -07:00
snapshot.h Change RocksDB License 2017-07-15 16:11:23 -07:00
sst_dump_tool.h Change RocksDB License 2017-07-15 16:11:23 -07:00
sst_file_manager.h Change RocksDB License 2017-07-15 16:11:23 -07:00
sst_file_writer.h Change RocksDB License 2017-07-15 16:11:23 -07:00
statistics.h add counter for deletion dropping optimization 2017-08-19 14:10:08 -07:00
status.h Change RocksDB License 2017-07-15 16:11:23 -07:00
table_properties.h FIFO Compaction with TTL 2017-06-27 17:11:48 -07:00
table.h support disabling checksum in block-based table 2017-08-23 19:40:47 -07:00
thread_status.h Change RocksDB License 2017-07-15 16:11:23 -07:00
threadpool.h Change RocksDB License 2017-07-15 16:11:23 -07:00
transaction_log.h Change RocksDB License 2017-07-15 16:11:23 -07:00
types.h Change RocksDB License 2017-07-15 16:11:23 -07:00
universal_compaction.h Change RocksDB License 2017-07-15 16:11:23 -07:00
version.h Bumping version to 5.8 2017-08-30 14:26:12 -07:00
wal_filter.h Revert "comment out unused parameters" 2017-07-21 18:26:26 -07:00
write_batch_base.h Change RocksDB License 2017-07-15 16:11:23 -07:00
write_batch.h WritePrepared Txn: Advance seq one per batch 2017-09-18 14:45:08 -07:00
write_buffer_manager.h Change RocksDB License 2017-07-15 16:11:23 -07:00