How to check statistics of running memcached
You can check the statistics of a running memcached server by using the command stats fater you have connected to the server by using telnet command as shown in the image below.
The image below shows typical output of stats command. The table below describes some of the important statistics displayed.
Description of some important statistics displayed in image above :
| Statistics Name | Description |
|---|---|
| uptime | seconds elapsed since memcached server started |
| curr_items | number of items currently in cache |
| total_items | total number of items put in cache ( some may have got evicted since) |
| bytes | currently used memory space to store items |
| limit_maxbytes | allowed maximum memory space to store items |
| bytes_read | total number of bytes read from network |
| bytes_written | total number of bytes written to network |
| curr_connections | currently open connections to memcached server |
| total_connenctions | total conenctions ever opened to memcached server (same may have been closed since) |
| cmd_get | number of times get command was called |
| cmd_set | number of times set command was called |
| get_hits | number of succesful get requests |
| get_misses | number of failed get requests |
| evictions | number of items evicted from memcache to free memmory for new items |
| threads | number of worker threads internally used by memcached to server client connections |
| listen_disabled_num | number of times new connections requests weer refused by memcached |