How can I shard database with multi table ??? (Multi tenancy ) -------------------------------------------------------------- Key: HSHARDS-62 URL: http://opensource.atlassian.com/projects/hibernate/browse/HSHARDS-62 Project: Hibernate Shards Issue Type: Deprecation Components: strategy Affects Versions: 3.0.0.Beta2 Environment: Hibernate3 , hibernate-shards-3.0.0.Beta2, mysql-5.5.14-win32 Reporter: Pham Hoang An Assignee: Max Ross Attachments: Capture-2.png i has 2 table in my database : EMPLOYEE and DEPARTMENT like this picture --> Image In table EMPLOYEE has column LOCATION and i want to shard this table by LOCATION : Example : if employee has LOCATION " France " --> shard0 , "USA" --> shard1, "singapore" --> shard2 .... Here is my code : Code: public ShardId getShardId(String _location) { int shardId = 0; if(_location.equalsIgnoreCase("VietNam")) shardId = 0; else if(_location.equalsIgnoreCase("Singapore")) shardId = 1; else if(_location.equalsIgnoreCase("USA")) shardId = 2; else if(_location.equalsIgnoreCase("France")) shardId = 3; return new ShardId(shardId); } if i shard with 1 table EMPLOYEE , it run successfully, BUT, when i shard it with table DEPARTMENT , it is wrong :(. It doesn't shard by LOCATION. It return a shard with DEPARTMENT. it mean : if I has 2 employee with different LOCATION and the same ID_DEP (same DEPARTMENT) , if i shard only 1 Table EMPLOYEE by LOCATION, 2 employee will insert into different shard, BUT if i shard with 2 table EMPLOYEE and DEPARTMENT by LOCATION, 2 employee will insert into same shard :((. Please help me. sr i has bad english :((. -- This message is automatically generated by JIRA. For more information on JIRA, see: http://www.atlassian.com/software/jira