Lightweight, SQL oriented monitoring for MySQL

mycheckpoint is an open source monitoring utility for MySQL, with strong emphasis on user accessibility to monitored data.

It is SQL oriented: charts, reports and advances metrics are generated on the fly with views. There is no need for an external program to diagnose the data. In fact, mycheckpoint‘s main duty is to to a one-time creation of a special purpose schema.

Recording of data is performed via a single INSERT command, which takes measurements from GLOBAL VARIABLES, GLOBAL STATUS, MASTER STATUS and SLAVE STATUS. There is no requirement that this measurement is taken by mycheckpoint itself. In addition, mycheckpoint allows for custom queries, the results of which are aggregated along with all other measurements.

Once the data is recorded, it is as easy to get complex presentations and diagnostics, such as charting and reporting, as it is to issue simple SELECT statements. You can even get HTML reporting pages (see sample). Detecting parameters change is also easily achieved.

It is also possible to create alert conditions, and get notified via email on raised or resolved alerts.

Please refer to the documentation for further discussion (or just use the Quick HOWTO), or to the download page for obtaining mycheckpoint.

SELECT innodb_read_hit_percent, DML FROM sv_report_chart_sample;

Above: querying for Google Chart URLs for measured metrics

Below: querying for human readable hourly report

SELECT report FROM sv_report_human_hour ORDER BY id DESC LIMIT 1,1 \G

Report period: 2010-02-10 08:00:00 to 2010-02-10 09:00:00. Period is 60 minutes (1.00 hours)
Uptime: 100% (Up: 379 days, 02:12:28 hours)

OS:
 Load average: 2.70
 CPU utilization: 17.8%
 Memory: 7470.1MB used out of 8177.3MB (Active: 6920.9MB)
 Swap: 4319.2MB used out of 8385.9MB

InnoDB:
 innodb_buffer_pool_size: 4718592000 bytes (4500.0MB). Used: 100.0%
 Read hit: 99.92%
 Disk I/O: 15.07 reads/sec  22.89 flushes/sec
 Estimated log written per hour: 809.3MB
 Locks: 0.13/sec  current: 0

MyISAM key cache:
 key_buffer_size: 33554432 bytes (32.0MB). Used: 18.2%
 Read hit: 99.8%  Write hit: 100.0%

DML:
 SELECT:  82.97/sec  13.0%
 INSERT:  66.70/sec  10.5%
 UPDATE:  19.24/sec  3.0%
 DELETE:  16.95/sec  2.7%
 REPLACE: 0.00/sec  0.0%
 SET:     158.79/sec  24.9%
 COMMIT:  0.03/sec  0.0%
 slow:    0.02/sec  0.0% (slow time: 1sec)

Selects:
 Full scan: 5.69/sec  6.9%
 Full join: 0.00/sec  0.0%
 Range:     0.84/sec  1.0%
 Sort merge passes: 0.00/sec

Locks:
 Table locks waited:  0.00/sec  0.0%

Tables:
 Table cache: 2048. Used: 88.5%
 Opened tables: 0.00/sec

Temp tables:
 Max tmp table size:  67108864 bytes (64.0MB)
 Max heap table size: 67108864 bytes (64.0MB)
 Created:             6.15/sec
 Created disk tables: 0.18/sec  2.8%

Connections:
 Max connections: 200. Max used: 245  122.5%
 Connections: 2.67/sec
 Aborted:     0.07/sec  2.6%

Threads:
 Thread cache: 32. Used: 68.8%
 Created: 0.02/sec

Replication:
 Master status file number: 2241, position: 524487864
 Relay log space limit: 10737418240, used: N/A  (N/A%)
 Seconds behind master: N/A
 Estimated time for slave to catch up: N/A seconds (N/A days, N/A hours)  ETA: N/A

mycheckpoint is released under the BSD license.