I'm importing 4.1mil records into an offline system to do some analysis on a subset of our database. As I'm running the import, I'm trying to check its progress by using:
SHOW TABLE STATUS LIKE 'MailIssueElement'
What's odd...at different times, I'm seeing higher AND lower values for Rows. I would expect it to only go up. Here is a sample of the output:
mysql> show table status like 'MailIssueElement' \G
*************************** 1. row ***************************
Name: MailIssueElement
Engine: MyISAM
Version: 10
Row_format: Dynamic
Rows: 2818307
Avg_row_length: 120
Data_length: 338392232
Max_data_length: 281474976710655
Index_length: 158029824
Data_free: 0
Auto_increment: 10248973
Create_time: 2010-02-03 10:58:41
Update_time: 2010-02-03 11:04:06
Check_time: 2010-02-03 10:58:53
Collation: latin1_swedish_ci
Checksum: NULL
Create_options:
Comment:
1 row in set (0.60 sec)
mysql> show table status like 'MailIssueElement' \G
*************************** 1. row ***************************
Name: MailIssueElement
Engine: MyISAM
Version: 10
Row_format: Dynamic
Rows: 1870294
Avg_row_length: 119
Data_length: 223251912
Max_data_length: 281474976710655
Index_length: 107688960
Data_free: 0
Auto_increment: 10248973
Create_time: 2010-02-03 10:58:41
Update_time: 2010-02-03 11:04:13
Check_time: 2010-02-03 10:58:53
Collation: latin1_swedish_ci
Checksum: NULL
Create_options:
Comment:
1 row in set (0.35 sec)
mysql> show table status like 'MailIssueElement' \G
*************************** 1. row ***************************
Name: MailIssueElement
Engine: MyISAM
Version: 10
Row_format: Dynamic
Rows: 3074205
Avg_row_length: 120
Data_length: 369507112
Max_data_length: 281474976710655
Index_length: 171537408
Data_free: 0
Auto_increment: 10248973
Create_time: 2010-02-03 10:58:41
Update_time: 2010-02-03 11:04:36
Check_time: 2010-02-03 10:58:53
Collation: latin1_swedish_ci
Checksum: NULL
Create_options:
Comment:
1 row in set (0.01 sec)
mysql> show table status like 'MailIssueElement' \G
*************************** 1. row ***************************
Name: MailIssueElement
Engine: MyISAM
Version: 10
Row_format: Dynamic
Rows: 1870294
Avg_row_length: 119
Data_length: 223251912
Max_data_length: 281474976710655
Index_length: 107688960
Data_free: 0
Auto_increment: 10248973
Create_time: 2010-02-03 10:58:41
Update_time: 2010-02-03 11:04:40
Check_time: 2010-02-03 10:58:53
Collation: latin1_swedish_ci
Checksum: NULL
Create_options:
Comment:
1 row in set (0.00 sec)
Is there an explanation for this behavior? Is there a better way to check the progress of my import?
Running the following version: Server version: 5.0.32-Debian_7etch11-log Debian etch distribution
EDIT:
Here is the DDL. It is a MyISAM table:
mysql> show create table MailIssueElement \G
*************************** 1. row ***************************
Table: MailIssueElement
Create Table: CREATE TABLE `MailIssueElement` (
`Id` int(11) NOT NULL auto_increment,
`IssueId` int(11) NOT NULL default '0',
`Date` datetime NOT NULL default '0000-00-00 00:00:00',
`Direction` enum('inbound','outbound') NOT NULL default 'inbound',
`ToAddr` varchar(255) NOT NULL default '',
`FromAddr` varchar(255) NOT NULL default '',
`CCAddrs` varchar(255) NOT NULL default '',
`Subject` text NOT NULL,
`ParentIssueElementId` int(11) default NULL,
`ParentIssueElementType` enum('mail','phone') default 'mail',
`AgentId` int(11) NOT NULL default '0',
PRIMARY KEY (`Id`),
KEY `date_idx` (`Date`),
KEY `IssueId` (`IssueId`),
KEY `idx_agent_id` (`AgentId`)
) ENGINE=MyISAM AUTO_INCREMENT=15099881 DEFAULT CHARSET=latin1
1 row in set (0.00 sec)
Thanks in advance,
-aj
OK, it looks like it was a bug reported and fixed. Guess I need to finally upgrade from Etch to Lenny and get those newer packages...thanks for trying all.