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3 commits

Author SHA1 Message Date
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