crontab format every 5 minutes

typical lamp (Linux + Apache + MySQL + Perl) application environment: Apache nginx; search for access and error logs, find the 5xx error, and check whether there is a limit_zone error. MySQL; find the error message in MySQL. log to see if there are any tables with corrupted structure, whether there are InnoDB repair processes running, and whether there are Disk/index/query problems. PHP-FPM; if the PHP-slow log is set, directly find the error message (PHP, MySQL, memcache ,...), I

Today, due to business needs, to check whether the company's website can be accessed by the external network, under the guidance of colleagues to do a planning task, first of all need to understand the needs:Visit the company website every five minutes once, if the access is successful, save the access record to the log, and if the access fails, send the message to the specified mailbox.Need to get, how to achieve it?How to achieve this function, in t

, you can send the next request after each link is established without waiting for the request to come back3. HTTP Request messagesThe client sends an HTTP request to the server for a request message that includes the following format:Request line, request header (header), request body composition, the general format of the request message is given.请求行: 方法: GET 获取资源 POST 向服务器端发送数据，传输实体主体 PUT 传输文件 HEAD 获取报文首部 DELET

environment:Apache Nginx; Look for access and error logs, find the 5xx error directly, and see if there is a limit_zone error.MySQL; In Mysql.log to find the error message, see if there is no structure corruption of the table, whether there is InnoDB repair process is running, whether there is disk/index/query problem.PHP-FPM; If the Php-slow log is set, go directly to the error message (PHP, MySQL, memcache, ...), if not set, set it up quickly.Varnish; In Varnishlog and Varnishstat, check the

~ /. Msmtprc $ VI ~ /. Msmtprc Account 163 TLS on Tls_certcheck off Tls_starttls off Auth on Host smtp.163.com User Username From [email protected] Password Port 465 5. Add the following lines ~ /. Muttrc = = Set folder = ~ /Mail Mailboxes + inbox Mailboxes + linux Set Sendmail = "/usr/bin/msmtp" # The mail_address name displayed on the mail list. Set From = "mail_address" Set pager_stop = Yes Set beep = No Set Signature = "~ /. Signature" Set co

Without Visual Studio, you can easily implement a report within 5 minutes. For general report design, such as RDLC and Crystal Reports, Visual Studio must be installed to design reports through the report design interface provided by. NET developers are very convenient, but for non-developers, it is a bit costly to install a 4g vs and require a License. This article provides another method to design reports

Label: 1 CREATE OR REPLACE FUNCTIONTo_time (secinch Number)RETURN VARCHAR2 is 2 /*Turn the seconds into a time and minute format3 Auth Lzpong 201/09/164 */ 5 BEGIN 6 RETURNTRUNC (NVL (sec,0)/3600)||':'||SUBSTR (Numtodsinterval (NVL (sec,0),'Second'), the,5); 7EXCEPTION whenOTHERS Then RETURN '0:00:00'; 8 ENDTo_time;9 Ten One CREATE OR REPLACE FUNCTION IsNumeric(Str inch VARCHAR2)RETURN Number is A

example, Nova placed under the/var/log/nova/, Glance placed under the/var/log/glance ...The log files for each sub-service are also saved separately, and the naming is also very canonical and easy to distinguish. For example, Nova-api's log is generally named/var/log/nova/api.log, and other logs are similar.format of the logThe log format for OpenStack is uniform, as follows timestamp the time of logging, including the day of the month,

sub-expression of the same content (that is, the second and third numbers are the same), \1 that the match is the same as the first sub-expression ( where The first number is the same as the fourth number ).When we understand the concept of reverse referencing, it is easy to match the expressions in the next 2 formats.112233 format:/(\d) \1 (\d) \2 (\d) \3/gi; 112233 334422 numbers in a similar format010-11223344

features many functions.VMDK is a virtual disk format for VMware, which means that VMware virtual machines can run directly on KVM.The next section describes the Storage Pool for LVM types.650) this.width=650; "title=" "src=" http://7xo6kd.com1.z0.glb.clouddn.com/ Upload-ueditor-image-20160313-1457875040598057697.jpg "style=" Border:0px;vertical-align:middle;color:rgb ( 63,63,63); font-family: ' Microsoft Yahei '; Font-size:15px;line-height:21.75px;t

, noting that the name of the list is also the name of the key in JSON. Multiple layers of nesting and so on. The access domain for all variables is public. Well, the Bean object is done.I put the JSON string in the String.xml, after clicking the button, parse the JSON string, layout file is very simple, here does not release.As can be seen, we call Json.parseobject (Myjson,appinfo.class) This line of code, we put all the information of the JSON string into the AppInfo obj

"Network Parameters" on the left side of the interface, set "ip address" to 192.168.1.8, and save it, as shown in figure 4. (4) Open IE browser, enter the IP Address: 192.168.1.8, log on to the wireless router Management Interface (note that this experiment selected TP-LINK wireless router, other brands such as CISCO products have similar configuration options ), click the "Basic settings" option under "Wireless Settings" on the left side of the page. 1) Select "Mode" as "54 Mbps (802.11g )"; 2

method name and parameter format of the deployment, invocation, and query contracts are all filled in by default, so you just have to choose a method name, tiger change the parameters! See how long you can play the chain ~Upload and test your own private intelligence contractIn addition to the two public smart contracts currently available, you can upload and test your own private contracts! Private contracts can only be seen by themselves.Under the

://download.cirros-cloud.net/. Format Selection QCOW2.If checked, the image can be used by other Project if checked, the image is not allowed to be deleted. Click, upload the file to OpenStack and create a new image Click the image link to display more information CLI Create ImageCirros This Linux image is very small and uploads quickly through the Web UI, and the operation will be smooth. But if we want to upload a larger image (such as severa

=" http://7xo6kd.com1.z0.glb.clouddn.com/ Upload-ueditor-image-20170214-1487051704139087108.png "/>In the case of CentOS 6.7n, you can directly glance the image-create command by converting it to an image type. The steps are as follows:1. In its details, record the ID: 228f7bdc-fcf1-4f6a-8a7a-298b86f9e94b650) this.width=650; "Src=" http://7xo6kd.com1.z0.glb.clouddn.com/ Upload-ueditor-image-20170214-1487051704230049849.png "/>2. The image is stored by default on the control node/var/lib/glance/i

) {Process P=NewProcess (); p.StartInfo.FileName="Cmd.exe"; P.startinfo.useshellexecute=false; P.startinfo.redirectstandardinput=true; P.startinfo.redirectstandardoutput=true; P.startinfo.redirectstandarderror=true; P.startinfo.createnowindow=true; P.start (); P.standardinput.autoflush=true; for(inti =0; I ) {p.standardinput.writeline (Cmd[i]. ToString ()); } p.standardinput.writeline ("Exit"); stringStrrst =P.standardoutput.readtoend (); p.WaitForExit ();

-space:normal;float:none; "/>There is one more question: volume provider put in there?Generally speaking, volume provider is independent. Cinder-volume uses driver to communicate with volume provider and coordinate work. So you just have to put driver and cinder-volume together. In the Cinder-volume source code directory There are many driver, support different volume provider.650) this.width=650; "Title=" http://7xo6kd.com1.z0.glb.clouddn.com/ Upload-ueditor-image-20160610-1465514562334003570.p