We have recently added a new memcached server, but it's underutilized
or at least not as much utilized as our other memcached servers. The
difference between this new server and the older server are following:
* memcached 1.4.5 is run (instead of memcached 1.2.2)
* Ubuntu 10 is run (instead of Ubuntu 8)
Has something drastically changed between 1.2.2 and 1.4.5? Or has
something changed between Ubuntu 8 and Ubuntu 10? Anybody else having
a similar issue?
Here is usage patterns from these two servers. Each of them have 3GB
available, but the server running 1.4.5 only uses around 300MB. We are
unsure what the cause is. These servers are run like this:
memcached -m 3072 -k -p 11221 -u plurk -l 192.168.0.35 -c 10240
Regards,
amix
[ ( '192.168.0.35:11221 (1)',
{ 'accepting_conns': '1',
'auth_cmds': '0',
'auth_errors': '0',
'bytes': '71301667',
'bytes_read': '68596588527',
'bytes_written': '215641263049',
'cas_badval': '0',
'cas_hits': '0',
'cas_misses': '0',
'cmd_flush': '0',
'cmd_get': '246655883',
'cmd_set': '62909113',
'conn_yields': '0',
'connection_structures': '2526',
'curr_connections': '2262',
'curr_items': '132819',
'decr_hits': '0',
'decr_misses': '0',
'delete_hits': '2297822',
'delete_misses': '23286159',
'evictions': '0',
'get_hits': '163185291',
'get_misses': '83470592',
'incr_hits': '25466',
'incr_misses': '0',
'limit_maxbytes': '3221225472',
'listen_disabled_num': '0',
'pid': '7319',
'pointer_size': '64',
'reclaimed': '36224211',
'rusage_system': '8341.840000',
'rusage_user': '3173.390000',
'threads': '4',
'time': '1287781046',
'total_connections': '139794',
'total_items': '62899221',
'uptime': '514507',
'version': '1.4.5'}),
( '192.168.0.70:11221 (1)',
{ 'bytes': '2879886510',
'bytes_read': '65548028841',
'bytes_written': '179395226207',
'cmd_get': '277646387',
'cmd_set': '68425776',
'connection_structures': '2553',
'curr_connections': '2291',
'curr_items': '3907837',
'evictions': '0',
'get_hits': '193391910',
'get_misses': '84254477',
'limit_maxbytes': '3221225472',
'pid': '17580',
'pointer_size': '64',
'rusage_system': '6113.240000',
'rusage_user': '3507.560000',
'threads': '1',
'time': '1287781045',
'total_connections': '138271',
'total_items': '68416527',
'uptime': '514517',
'version': '1.2.2'})]
