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-si http://127.0.0.1:8080/| Wc-c 141 $ curl-si http://go.http/ http/1.1 OK Server:nginx Date:sun, Dec 2013 14:59:31 GMT Content-type:text/plain Content-length:12 Connection:keep-alive $ Curl-si http://go.http/| Wc-c 141 $ curl-si http://go.fcgi.tcp/ http/1.1 OK Content-type:text/plain Content-length:12 Connection:keep-alive Date:sun, Dec 2013 14:59:40 GMT Server:gophr $ Curl-si http://go.fcgi.tcp/| Wc-c 141 $ curl-si http://go.fcgi.unix/ http/1.1 OK Content-type:t
/local/doc/haproxyCreate a new haproxy master configuration file Copy Code code as follows: VI haproxy.cfg Global Log 127.0.0.1 Local0 Maxconn 4096 Chroot/usr/local/doc/haproxy UID 501 GID 501 Daemon Nbproc 1 Pidfile/usr/local/doc/haproxy/haproxy.pid Defaults Log 127.0.0.1 Local3 Mode http Option Httplog Option Httpclose Option Dontlognull Option Forwardfor Option Redispatch Retries 2 Maxconn 2000 Balance Roundrobin Stats
factor, default is 1.25-N Minimum allocation space, key+value+flags default is 48-H Display Help Basic commands for memcached (when memcached is started for commands that relate to the data that Memcached manages and its own running state): Command Description Example Get Reads a value Get MyKey Set Set a key unconditionally Set MyKey 0 60 5 Add ADD a new key Add Newkey 0 60 5 Replace Overwrite existi
instance. They are stats and Flush_all commands. StatsThe stats command functions as its name: the current statistics for the memcached instance to which it is connected. In the following example, the Execute Stats command displays information about the current memcached instance: Stats STAT pid STAT
5 Replace Overwrite existing Key Replace key 0 60 5 Append Append data to existing key Append key 0 60 15 Prepend Prepend data to existing key Prepend Key 0 60 15 incr Increments numerical key value by given number INCR MyKey 2 Decr Decrements numerical key value by given number DECR MyKey 5 Delete Deletes an existing key Delete MyKey Flush_all Invalidate speci
*/ Public static void main (String [] args ){ // TODO Auto-generated method stub TwoGen TgObj = New TwoGen (88, "Generics "); // Show the types. TgObj. showTypes (); // Obtain and show values. Int
Add Add a new key Add newkey 0 60 5 Replace Overwrite existing key Replace Key 0 60 5 Append Append data to existing key Append Key 0 60 15 Prepend Prepend data to existing key Prepend Key 0 60 15 Incr Increments numerical key value by given number Incr mykey 2 Decr Decrements numerical key value by given number Decr mykey 5 Delete Deletes an existing key Delete mykey Flush_all I
/plainContent-Length: 12Connection: keep-aliveDate: Sun, 15 Dec 2013 15:00:15 GMTServer: gophr $ Curl-sI http://go.fcgi.unix/| wc-c141 Start the engine Use sysctl to configure the kernel Configure Nginx Configure Nginx vhosts Start the service with www-data Run the Benchmark Test Benchmark Test GOMAXPROCS = 1Go standalone # Wrk-t100-c5000-d30s http: // 127.0.0.1: 8080/Running 30 s test @ http: // 127.0.0.1: 8080/100 threads and 5000 connectionsThread S
publicCoss stats publicDiskd stats publicConfig current squid configuration hiddenIpcache IP cache stats and contents publicFqdncache FQDN cache stats and contents publicDNS dnsserver statistics publicExternal_acl external ACL stats publicHttp_headers HTTP header statistics
/db_1/rdbms/admin/" is the script directoryAfter running the script, enter perfstat_password, default_tablespace, temporary_tablespace 10. test whether a database snapshot is generated successfully.SQL> execute statspack. Snap 11. Generate a snapshotSQL> execute statspack. Snap 12. Take the statspack report for the time period between two snapshotsSQL> @/Oracle/product/10.2.0/db_1/rdbms/admin/spreport. SQLEnter the start point and end point for generating the statspack report. For example, a sna
In JS, code nesting and code callback are very common. They are not only difficult to write but are not harmful. It is a headache for me to wait for the codoon function () { function () { function () { function () { //pass } } }} This is a conventional nesting. If each function has a lot of logic processing, it will lead to a very long code, which is not only difficult to code, but also very painful to read, this is a good situation in JS,
tcp # http Layer 7 mode option httpchk # Heartbeat detection File server db1 10.1.6.203: 3306 weight 1 check port 9222 inter 12000 rise 3 fall 3 # server definition, check inter 12000 is the heartbeat detection frequency rise 3 is 3 times correctly think the server is available, fall 3 is 3 times failed think the server is unavailable, weight stands for weight server db2 10.1.6.205: 3306 weweigh T 1 check port 9222 inter 12000 rise 3 fall 3 listen haproxy_stats mode http bind 10.1.6.173: 8888 o
;haproxygrouphaproxy daemon#turnonstatsunixsocket statssocket/var/lib/haproxy/stats#---------------------------------------- -----------------------------#mainfrontendwhichproxystothebackends#- --------------------------------------------------------------------frontendmain*:80 #第一种方式 #bind*:80 #第二种方式 # bind*:8080 #只能用于frontend, listen;#maxconn can also be defined here or after listen, Defines the maximum number of concurrent connections for a single
pnp histo" 0"Ges resource" 605005184"Knlp free small rcv buf" 0"SQLA" 280160"PRTI" 0"SQLP" 53608"SQLK" 28336"GC dynamic r" 2556288"Work area tab" 236640"Plwpil: wa" 0"Kebm run-once actions" 0"Grptab_kfgsg" 0"Aw sga" 0"Dbktb: trace buffer" 53673984"V_swperrcount" 0"Ksunfy: SSO free list" 27834240"Ksxp IPC state object" 346448"Ksdhng: cache history" 0"DFW_CONFIG_CAPTURE" 0"Enqueue resources" 862232"Kzekm heap descriptor" 0"Kelt translation table" 0"IPS_PACKAGE_UNPACK_HISTOR" 0"Kglsim hash table b
I like it very much; 5. HAProxy supports virtual hosts. The following describes how to use Haproxy as the Server Load balancer:Current Environment: Ubuntu16.04 + Haproxy 192.168.93.21Centos6 + httpd 192.168.93.5Centos6 + httpd 192.168.93.7 Haproxy configuration file Vi/etc/haproxy. using Global log/dev/log local0 log/dev/log local1 notice chroot/var/lib/haproxy stats socket/run/haproxy/admin. sock mode 660 level admin
Database home directory, default is '/data1/memcacheq ' -L Log buffer size, default is 32KB -C How many seconds checkpoint once, 0 for disable, and default is 5 minutes -T How many seconds Memp_trickle once, 0 for disable, and default is seconds -S How many seconds queue stats dump once, 0 for disable, and defaul
([mydir ,'*. jpg ']); % extension n = length (DIRS); for I = 1: n if ~ DIRS (I ). isdir img = imread (strcat (mydir, DIRS (I ). name); img = im2bw (img); % binarization img = 1-img; % color Anti-transfer characters become Unicom domains, easy to remove noise for ii = region = [ii * 20 +,]; % divide a verification code into four 20*20 character pictures subimg = imcdrop (img, region); imlabel = bwlabel (subimg); % imshow (imlabel); if max (imlabel)> 1% indicates that there is noise, % max (imlab
/admin/spauto. SQL 14. Delete historical data Select max (snap_id) from stats $ snapshot; -- deletes the corresponding data in the stats $ snapshot table. The corresponding data in other tables is also deleted. Delete from stats $ snapshot where snap_id You can also run the sptrunc. SQL script to directly Delete the information of these statistical tables. Note:
means to force the kill process.After the memcached is started, the data in the cache can be manipulated by the client, and we describe some common clients and how to use them.Telnet ClientThe Telnet client can use the command line to monitor how the memcached server stores data. For example, Memcached has a service address of 192.168.4.86:11211 and can telnet to the service port:Telnet 192.168.4.86 11211If the connection succeeds, you can use some of the following commands:
, Memcached is an LRU cache, and it cleans up extended data as long as it is pre-booked, but in fact, memcached does not delete any cached data but is no longer visible to the customer after it expires; Memcached also does not really clean up the cache by age, but only when the get command arrives, checking its duration;Memcached provides a handful of commands to accomplish server-side interactions, which are based on memcached protocol implementations.Storage class Commands: Set, add, replace,
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