用于存储session的memcache配置

用于存储session的memcache配置

 

/usr/bin/memcached -m 64 -c 2048 -f 1.10 -l 192.168.2.10 -p
11200 -n 1024 -I 5242880 -u apache &

 

-r  maximize core file limit

 

-c 客户端连接数

 

-f slab最小chunk（存储单元，实际存储数据的单元）增长
因子（slab1 比 slab2大多少倍）

 

-n chunk的最小大小

 

-I slab的大小，一个用户1k，5m大约存能够5000个在线

 

/usr/bin/memcached -m 32 -c 2048 -f 1.10 -l 192.168.2.10 -p
11200 -n 1024 -I 5242880 -u apache &

 

目的是够用，当session远小于1k时，会有浪费，当总的来说不过用5M就能存储5000人。

 

[html] 

[root@sc-centos6-1 ~]# memcached-tool 192.168.2.10:11200                                 

  #  Item_Size  Max_age   Pages   Count   Full?  Evicted Evict_Time OOM  

  1     1.0K       205s       1       2      no        0        0    0  

 

[root@sc-centos6-1 ~]# telnet 127.0.0.1 11200  

Trying 127.0.0.1...  

telnet: connect to address 127.0.0.1: Connection refused  

[root@sc-centos6-1 ~]# telnet 192.168.2.10 11200                                   

Trying 192.168.2.10...  

Connected to 192.168.2.10.  

Escape character is '^]'.  

set aa 33 3600 10  

1234567890  

STORED  

set aa 33 3600 100                          

1234567890123456789012345678901234567890123456789
012345678901234567890123456789012345678901234567890  

STORED  

get aa  

VALUE aa 33 100  

12345678901234567890123456789012345678901234567890
12345678901234567890123456789012345678901234567890  

END  

set aa1 33 3600 10  

1234567890  

STORED  

get aa1  

VALUE aa1 33 10  

1234567890  

END  

stats slabs  

STAT 1:chunk_size 1072  

STAT 1:chunks_per_page 4890  

STAT 1:total_pages 1  

STAT 1:total_chunks 4890  

STAT 1:used_chunks 2  

STAT 1:free_chunks 0  

STAT 1:free_chunks_end 4888  

STAT 1:mem_requested 250  

STAT 1:get_hits 2  

STAT 1:cmd_set 3  

STAT 1:delete_hits 0  

STAT 1:incr_hits 0  

STAT 1:decr_hits 0  

STAT 1:cas_hits 0  

STAT 1:cas_badval 0  

STAT active_slabs 1  

STAT total_malloced 5242080  

END