Monitoring Memcached
Collect and monitor the general performance Metrics of Memcached.
Protocol Use：Memcached
The default YML configuration for the memcache version is in compliance with 1.4.15.
You need to use the stats command to view the parameters that your memcache can monitor
**1、Obtain usable parameter indicators through commands such as stats、stats setting、stats settings.
# telnet ip port
[root@server ~]# telnet localhost 11211
Trying ::1...
Connected to localhost.
Escape character is '^]'.
stats
STAT pid 15168
STAT uptime 11691
STAT time 1702569246
STAT version 1.4.15
...
There is help_doc: https://www.runoob.com/memcached/memcached-stats.html
Configuration parameter
| Parameter name | Parameter help description |
|---|---|
| Monitoring Host | Monitored IPV4, IPV6 or domain name. Note⚠️Without protocol header (eg: https://, http://) |
| Monitoring name | Identify the name of this monitoring. The name needs to be unique |
| Port | Port provided by Memcached |
| Collection interval | Interval time of monitor periodic data collection, unit: second, and the minimum interval that can be set is 30 seconds |
| Whether to detect | Whether to detect and check the availability of monitoring before adding monitoring. Adding and modifying operations will continue only after the detection is successful |
| Description remarks | For more information about identifying and describing this monitoring, users can note information here |
Collection Metrics
Metrics Set：server_info
| Metric name | Metric unit | Metric help description |
|---|---|---|
| pid | Memcache server process ID | |
| uptime | s | The number of seconds the server has been running |
| version | Memcache version | |
| curr_connections | Current number of connections | |
| auth_errors | Number of authentication failures | |
| threads | Current number of threads | |
| item_size | byte | The size of the item |
| item_count | Number of items | |
| curr_items | The total number of data currently stored | |
| total_items | The total number of data stored since startup | |
| bytes | byte | The current number of bytes occupied by storage |
| cmd_get | Get command request count | |
| cmd_set | Set command request count | |
| cmd_flush | Flush command request count | |
| get_misses | Get command misses | |
| delete_misses | Delete command misses |