0
votes
1answer
86 views

MongoDB insert performance rapidly dropping

I'm currently experiencing a rapid decrease of the insert Performance. I have a rather simple data model { "Id": "ObjectId", "SomeProp": "xy", "SomeTags": [ { "key": ...
1
vote
1answer
98 views

GETDATE() uniqueness when used on INSERT

Recently I was reading this blog post: http://blogs.msdn.com/b/sqlazure/archive/2010/05/05/10007304.aspx which contains this section: Picking a Clustered Index There are a couple of ...
0
votes
2answers
264 views

Is there slowdown inserting into an InnoDB table that has no index set?

I have an old application with lots of InnoDB tables, that have no indexes at all, not even a primary ID or such. Those tables only contain a few thousand rows. Would it be faster to INSERT data ...
2
votes
1answer
340 views

How to improve INSERT speed in large table that has unique constraint

I have a simple MyISAM table: explain entities; +------------+-------------+------+-----+-------------------+----------------+ | Field | Type | Null | Key | Default | Extra ...
3
votes
1answer
254 views

Adding new key(s) to enable partitioning, INSERT performance?

I have a table to storage GPS coordinates with multiple (~30) inserts per second (from 50 diferent devices) during 12 hours per day, so the table is growing fast, to improve the SELECT speed I was ...
5
votes
1answer
992 views

How can I get status messages during a large re-indexing operation with MySQL 5.5?

I get large data transfers periodically that I used to completely replace the contents of a MySQL table. Each time I do this, I truncate the table, disable keys, add several million rows of data, and ...