There is a need to back up the data from the production library to the backup machine at 23 o'clock every night, the database of the backup machine can be used directly the next day, the data is the data of the production library yesterday. (production data is not much, all data is not more than 3000w).With no exposure to advanced Oracle knowledge, only simple IMPDP and EXPDP tools are available, so it is intended to be done with this self-brought command and shell script.Now assume that the pro
/haproxy. pid maxconn 4000 user haproxy group haproxy daemon # turn on stats unix socket stats socket/var/lib/haproxy/stats # response # common defaults that all the 'listen' and 'backend' sections will # use if not designated in their block # revoke defaults log global log 127.0.0.1 local3 mode http option httplog option dontlognull retries 10 option redispatch maxconn 2000 timeout http-request 10 s timeout queue 1 m timeout connect 10 s timeout client 1 m timeout server 1 m timeout http-keep-a
Provides various official and user-released code examples. For code reference, you are welcome to learn thinkphp 3.2.2 integrate the Jpgraph plug-in.
Thinkphp 3.2.2 integrates the Jpgraph plug-in.
1. Download a Jpgraph plug-in package from the Jpgraph website.
2. Copy the Jpgraph plug-in package to the Thinkphp/Library/Vendor/Jpgraph folder (the plug-in is usually put in the Thinkphp extension folder)
// Drawing casePublic function draw3D (){Vendor ('jpgraph. char ');$ Chart = new \ Chart; $ Tit
System optimization is a complex, complex, and long-term task. The following subsystems are usually monitored: CPU, Memory, IO, Network, etc.
I. CPU performance indicators
CPU utilization: User Time
Context switch: It is associated with the CPU usage. If the CPU usage is in good state, a large number of context switches are acceptable.
Runnable queue: three threads per processor.Monitoring tools
Vmstat
$ Vmstat 1
First, let's look at a field that can be aligned:
The following is the case of so
, which can generate pie charts, line charts, and column charts. You only need to add them to a third-party class library according to the instructions and import them into the class library. Take thinkphp2.1 as an example: First extract the jpgraph.zip plug-in the attachment, copy it to the thinkphp/vendor directory, and then copy the driver file "chart. class. copy "php" to 'thinkphp/lib/think/util '. Under this directory, you can directly use it in the action file.
Version 3.1.2 can be placed
New car running-in: Within 1000 km, the speed cannot exceed 120 km/h, so that the speed can be accelerated, slowed down, blocked, or at a low speed. The main purpose is to run in the train and engine at low load. 1000 km later, it started to run at a high speed. First, run the 120-140 km/h Speed segment: In good road conditions, first stable operation of km/h speed for a long journey, after the water temperature is normal, the speed will be increased
1111.00
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Here is an abridged hundreds of words ^_^
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92
3825.00
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4165.00
94
4426.00
95
4826.00
96
4987.00
97
5447.00
98
5598.00
99
8131.00
You can see the distribution of response time in this test.
Parameter format:-G Tsv_file_full_path
Indicates that the response of each request is stored
to represent color. 1 bits have only two states: 0 and 1, so there are two kinds of colors, black and white. So, Qbitmap is actually only black-and-white image data.
Because the Qbitmap color is deep and small, it takes up very little storage space, so it is suitable for cursor files and brushes.
Here we look at the different manifestations of the same image file under Qpixmap and Qbitmap:
void PaintedWidget::paintEvent(QPaintEvent *event) { QPainter painter(this); QPixmap pixmap("Cat.png");
, it should need to know most of the Paxos instances, so it will start an active learning process immediately. Assuming that the current new leader has already known the Paxos instance of 1-134, 138, and 139, it executes the first phase of the Paxos instance of 135-137 and greater than 139. If only the Paxos instances of 135 and 140 are detected to have a certain value, then it will eventually know the Paxos instances of 1-135 and 138-140.1.3.2 Synchr
=NewBufferedImage (140, 140, Bufferedimage.type_int_rgb); Graphics2D GS=Bufimg.creategraphics ();Gs.setbackground (Color.White); Gs.clearrect (0, 0, 140, 140); //set Image Color BLACKGs.setcolor (Color.Black); //setting offset does not set may cause parsing errors intPixoff = 2; //output content QR code
For example
The first case: if the picture size is 600x350, the display area size is 200x140, if the picture according to the target width (200) proportionally scales after the size becomes 116, then displays in 200x140 will be very difficult to see. The following figure left
The second case: just the opposite, if the picture size is 400x400, the display area is also 200x140, if the picture according to the target height (140) proportional scaling a
page size is 65536, the largest SQLite database size is approximately 140 megabytes. The maximum number of pages pragma can be used to increase or decrease this limit at run time. Maximum number of data rows in the table The maximum number of data rows in the table can theoretically go to 264 (18446744073709551616 or about 1.8e+19). This restriction is not available because the database will first reach the size limit of
Hi.baidu.comyouren4548blogitemfa08bd1bf61005058618bf1d.html there are two main operations on SIM card data: one is text message operation and the other is address book operation. The two types of codes are slightly different: 1. Short Message operation, the maximum length of a text message is 140 bytes by default. ASCII characters only
Http://hi.baidu.com/youren4548/blog/item/fa08bd1bf61005058618bf1d.html operation SIM card in the data operation mainl
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