Re: mysql online ddl still lock
Posted by:
Rick James
Date: April 02, 2016 12:39AM
Re sharding...
Will you shard on the UUID?
How will you know the UUID?
What do you plan to have to do the redirecting of traffic to the individual servers (shards)?
Will only the one table be sharded? Will you have all the other tables in a single server?
Do you need to collect data from multiple shards?
Will you need to JOIN the sharded table to other table(s)?
If you are going to use UUIDs, at least pack them into BINARY(16). Smaller -> more cacheable -> less I/O --> faster.
Keep in mind that UUIDs are very random, hence tend to make a table I/O bound if it gets too big to be fully cached. Will your Shards have no more data than can fit in RAM?
Subject
Views
Written By
Posted
2491
February 19, 2016 02:35AM
1549
February 19, 2016 03:09AM
1469
February 19, 2016 06:53AM
1453
February 20, 2016 01:38AM
1188
August 24, 2016 03:48AM
1052
August 25, 2016 07:40PM
1202
August 30, 2016 09:33PM
1163
September 01, 2016 04:55PM
1108
September 01, 2016 11:40PM
1109
September 03, 2016 05:05PM
1098
September 05, 2016 01:20AM
1153
September 05, 2016 03:54PM
989
September 08, 2016 04:04AM
1062
September 10, 2016 12:19AM
1364
February 23, 2016 11:29PM
1738
February 29, 2016 11:32PM
1559
March 05, 2016 12:19AM
1477
March 07, 2016 03:34AM
1463
March 31, 2016 02:32AM
Re: mysql online ddl still lock
1406
April 02, 2016 12:39AM
1428
May 13, 2016 02:44AM
1367
May 24, 2016 09:53AM
Sorry, you can't reply to this topic. It has been closed.
Content reproduced on this site is the property of the respective copyright holders.
It is not reviewed in advance by Oracle and does not necessarily represent the opinion
of Oracle or any other party.