4 commits

Author	SHA1	Message	Date
kailiu	906f3dca72	Add a hash-index component for block ... Summary: this is the key component extracted from diff: https://reviews.facebook.net/D14271 I separate it to a dedicated patch to make the review easier. Test Plan: added a unit test and passed it. Reviewers: haobo, sdong, dhruba CC: leveldb Differential Revision: https://reviews.facebook.net/D16245	2014-03-03 21:11:49 -08:00
Dhruba Borthakur	9cd221094c	Add appropriate LICENSE and Copyright message. ... Summary: Add appropriate LICENSE and Copyright message. Test Plan: make check Reviewers: CC: Task ID: # Blame Rev:	2013-10-16 17:48:41 -07:00
Dhruba Borthakur	4463b11cad	Migrate names of properties from 'leveldb' prefix to 'rocksdb' prefix. ... Summary: Migrate names of properties from 'leveldb' prefix to 'rocksdb' prefix. Test Plan: make check Reviewers: emayanke, haobo Reviewed By: haobo CC: leveldb Differential Revision: https://reviews.facebook.net/D13311	2013-10-06 00:14:26 -07:00
Dhruba Borthakur	f7975ac733	Implement RowLocks for assoc schema ... Summary: Each assoc is identified by (id1, assocType). This is the rowkey. Each row has a read/write rowlock. There is statically allocated array of 2000 read/write locks. A rowkey is murmur-hashed to one of the read/write locks. assocPut and assocDelete acquires the rowlock in Write mode. The key-updates are done within the rowlock with a atomic nosync batch write to leveldb. Then the rowlock is released and a write-with-sync is done to sync leveldb transaction log. Test Plan: added unit test Reviewers: heyongqiang Reviewed By: heyongqiang Differential Revision: https://reviews.facebook.net/D5859	2012-10-03 23:19:01 -07:00