TransactionLogIterator sequence gap fix
TransactionLogIterator sequence gap fix

Summary: DBTestXactLogIterator.TransactionLogIterator was failing due the sequence gaps. This was caused by an off-by-one error when calculating the new sequence number after recovering from logs.

Test Plan: db_log_iter_test

Reviewers: andrewkr

Subscribers: andrewkr, hermanlee4, dhruba, IslamAbdelRahman

Differential Revision: https://reviews.facebook.net/D58053

hobinyoon/rocksdb,wenduo/rocksdb,wat-ze-hex/rocksdb,Andymic/rocksdb,tsheasha/rocksdb,hobinyoon/rocksdb,norton/rocksdb,ryneli/rocksdb,wat-ze-hex/rocksdb,hobinyoon/rocksdb,facebook/rocksdb,vmx/rocksdb,ryneli/rocksdb,wat-ze-hex/rocksdb,Andymic/rocksdb,facebook/rocksdb,hobinyoon/rocksdb,ryneli/rocksdb,SunguckLee/RocksDB,vmx/rocksdb,Andymic/rocksdb,vmx/rocksdb,Andymic/rocksdb,wenduo/rocksdb,hobinyoon/rocksdb,bbiao/rocksdb,facebook/rocksdb,wat-ze-hex/rocksdb,facebook/rocksdb,vmx/rocksdb,norton/rocksdb,OverlordQ/rocksdb,bbiao/rocksdb,jalexanderqed/rocksdb,SunguckLee/RocksDB,wenduo/rocksdb,jalexanderqed/rocksdb,wenduo/rocksdb,facebook/rocksdb,tsheasha/rocksdb,bbiao/rocksdb,wenduo/rocksdb,OverlordQ/rocksdb,Andymic/rocksdb,jalexanderqed/rocksdb,wat-ze-hex/rocksdb,bbiao/rocksdb,jalexanderqed/rocksdb,facebook/rocksdb,OverlordQ/rocksdb,jalexanderqed/rocksdb,norton/rocksdb,SunguckLee/RocksDB,jalexanderqed/rocksdb,SunguckLee/RocksDB,tsheasha/rocksdb,tsheasha/rocksdb,bbiao/rocksdb,hobinyoon/rocksdb,norton/rocksdb,hobinyoon/rocksdb,norton/rocksdb,Andymic/rocksdb,wenduo/rocksdb,ryneli/rocksdb,SunguckLee/RocksDB,norton/rocksdb,facebook/rocksdb,SunguckLee/RocksDB,ryneli/rocksdb,tsheasha/rocksdb,hobinyoon/rocksdb,norton/rocksdb,tsheasha/rocksdb,ryneli/rocksdb,OverlordQ/rocksdb,wat-ze-hex/rocksdb,wat-ze-hex/rocksdb,vmx/rocksdb,vmx/rocksdb,Andymic/rocksdb,OverlordQ/rocksdb,bbiao/rocksdb,facebook/rocksdb,vmx/rocksdb,norton/rocksdb,SunguckLee/RocksDB,tsheasha/rocksdb,ryneli/rocksdb,wenduo/rocksdb,Andymic/rocksdb,SunguckLee/RocksDB,bbiao/rocksdb,bbiao/rocksdb,vmx/rocksdb,tsheasha/rocksdb,OverlordQ/rocksdb,wenduo/rocksdb,jalexanderqed/rocksdb,OverlordQ/rocksdb,wat-ze-hex/rocksdb