MySQL Forums
Forum List  »  Performance

Re: Monitoring large resultsets
Posted by: Aftab Khan
Date: July 12, 2012 04:13AM

Lets look at memory buffers:

| tmp_table_size | 268435456 | #256M
| max_heap_table_size | 268435456 | #256M

| query_cache_size | 2147483648 | # 2G

Values are too high. 2G size for a query cache is too much. Similarly, tmp table size is high as well.



| Max_used_connections | 151 |
| back_log | 50 |


| Created_tmp_disk_tables | 12342 |
| Created_tmp_files | 60 |
| Created_tmp_tables | 13086 |

lots of disk temporary tables

| Bytes_received | 108989142 | # 103M
| Bytes_sent | 2072944949 | # 1.9G

A lot of data is sent but when I look at total number of questions is high (for 45 minutes uptime) so

>Questions: 774987
>Com_select | 195924 |

10k bytes sent per select and/or 721K bytes sent per second.



Edited 3 time(s). Last edit at 07/12/2012 04:18AM by Aftab Khan.

Options: ReplyQuote


Subject
Views
Written By
Posted
2046
July 10, 2012 10:26PM
1114
July 11, 2012 02:01AM
896
July 12, 2012 02:19AM
946
July 12, 2012 03:37AM
Re: Monitoring large resultsets
939
July 12, 2012 04:13AM
982
July 12, 2012 05:49AM
1113
July 12, 2012 07:02AM
932
July 13, 2012 07:50PM
918
July 14, 2012 02:43AM
900
July 12, 2012 08:13AM
897
July 12, 2012 08:55AM
981
July 12, 2012 12:12PM


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.