2 commits

Author	SHA1	Message	Date
Maysam Yabandeh	7e38238981	WritePrepared Txn: Disable GC during recovery ... Summary: Disables GC during recovery of a WritePrepared txn db to avoid GCing uncommitted key values. Closes https://github.com/facebook/rocksdb/pull/2980 Differential Revision: D6000191 Pulled By: maysamyabandeh fbshipit-source-id: fc4d522c643d24ebf043f811fe4ecd0dd0294675	2017-10-18 09:11:50 -07:00
Yi Wu	d1b74b0c82	WritePrepared Txn: Compaction/Flush ... Summary: Update Compaction/Flush to support WritePreparedTxnDB: Add SnapshotChecker which is a proxy to query WritePreparedTxnDB::IsInSnapshot. Pass SnapshotChecker to DBImpl on WritePreparedTxnDB open. CompactionIterator use it to check if a key has been committed and if it is visible to a snapshot. In CompactionIterator: * check if key has been committed. If not, output uncommitted keys AS-IS. * use SnapshotChecker to check if key is visible to a snapshot when in need. * do not output key with seq = 0 if the key is not committed. Closes https://github.com/facebook/rocksdb/pull/2926 Differential Revision: D5902907 Pulled By: yiwu-arbug fbshipit-source-id: 945e037fdf0aa652dc5ba0ad879461040baa0320	2017-10-06 10:41:53 -07:00