Extended development of ceph management platform CalamariI haven't written logs for nearly half a year. Maybe I am getting lazy. But sometimes writing something can help you accumulate it. Let's record it. I have been familiar with some related work since I joined the company for more than half a year. Currently, I am mainly engaged in the research and development of distributed systems. The current development is mainly at the management level and ha
the candle ).
The problem is obvious here. How can we solve it? You need to use an extremely useful extension "entityframework. Extended" in entityframework ". This is an open-source extension class library that can be supported only in. Net 4.0 or later versions. You can find it on nuget and GitHub. It uses the lambda Expression Tree to parse objects. After parsing, it directly generates SQL commands to complete database operations. Compared with tr
, please remember, click
Confirm , the following figure:
Unable to login to the Extender interface, what to do?
1
, Setup Wizard
Log in to the Extender interface, and the
Setup Wizard clicks
Next , as shown below:
2
, scanning signal
Scan the perimeter of the wireless signal, click on the
scan , as shown below.
Locate the wireless signal you want to extend in the list and clic
1, what is the HtmlHelper auxiliary method? is actually the extension method of the HtmlHelper class, as follows:namespacesystem.web.mvc.html{ Public Static classFormExtensions//form-related extension methods, such as creating form labels, and so on. Public Static classInputExtensions//all input is included here, for example: Text,button,readiobutton and so on. Public Static classLinkextensions//Link Related methods Public classMvcform:idisposable//independent of client controls
Software entities (classes, modules, function, etc.) should is open for extension, but closed for modification.Software entities (modules, classes, methods, etc.) should be open to extensions and closed for modification.The opening and closing principle (ocp:open-closed principle) refers to the design of a class or other program unit in an object-oriented design (Ood:object oriented), which should follow:-open to Extension (open) -close to modification (closed) Principles of Design. The opening
In 12C, the VARCHAR2,NVARCHAR2 and raw types extend from previous 4K to 32KAfter upgrading to 12C, the parameter max_string_size default value is standard, that is, does not change the size limit of VARCHAR2, NVARCHAR2, and raw data types, and 11g is consistent.sql> Show parameter max_string_sizename TYPE VALUE------------------------------------------- ----------------------------------max_string_size string standardsqlTo turn on
SqlServer Bug: the extended stored procedure has been running and the waiting type PREEMPTIVE_ OS _GETPROCADDRESS appears, sqlserver
Today, xp_readerrorlog is used to query a deadlock information on the new server for the first time, and the result is always running, even if the kill is still running:
(Run in two server instances, one of which has been killed)
exec xp_readerrorlog 0,1,NULL,NULL,'2015-01-07 22:13:10','2015-01-07 22:13:11','ASC'
The
Today, I suddenly gave a task to put the test point on the plane.AlgorithmAnd then publish it through Supermap iserverjava 6R to test the concurrent access performance. I haven't gotten any results for a long time. Java is suddenly a little messy. I have a beard and an eyebrow, but the idea is clear. I will record it for future search.
Overall Test ideas
1. Open rest interfaces in the extended domain.
(1)
Extended Virtual Machine hard drive-linux environment: VMWareWorkstation80 and Linux system requirements: extended 20 GB size hard drive to 40 GB size 1, PowerOff virtual machine system and delete all Snapshot, (because the disk size can be expanded only after the unique node ). 2. extended virtual machine hard drive-linux environment: VMWare Workstation 8.0 and
Extended CHM PHP Grammar manual DIY
1. Main features of the Extended CHM
Customizable Right-click menu
PHP code blocks are highlighted in syntax
A function in a PHP code block with a corresponding function manual link
Clearer manual interface
You can customize the appearance style of the manual
Support Skin changing function
More detailed manual content
Very useful user notes included
Can be integrated in
[IOS] extended extension and protocol and swiftextension in Swift
Together with the previous Playground summary code, the code has been transferred to github, and many comments have been written, so you can refer to it later. The main part of the Swift syntax is almost the same. Of course, there are supplements such as generics, Operator overloading, ARC, and closures.
1. extension)
Extended extension (si
Mount extended Hard Disk Partitions using LVM in CentOS VPS
Linux partitions are LVM, and there are three phases to expand the hard disk: New partition -- New PV -- expand VG -- expand LVTo divide a single hard disk into multiple logical partitions, create a new partition. skip this step if you use the entire hard disk:
1234567891011121314151617
# Http://www.haiyun.mefdisk-l # view the partition to be mounted, usually/dev/xvdbfdisk/dev/xvdb Command (m
look up from the bottom, and quickly find a n:name= "", the Name of the content with touch words of the project. This means that the system has identified the touch screen and has begun to receive its events.With the author's equipment as an example, my touch screen project is:1i:bus=0003Vendor=0eef product=0001version=01002N:name="Egalax Inc. USB touchcontroller Pen"3p:phys=usb-0000: 0f:00.0-2/input04s:sysfs=/devices/pci0000:xx/0000:xx: 1c.6/0000: 0f:00.0/usb3/3-2/3-2:1.0/input/input205u:uniq=
05_01_egrep and extended Regular expressionsRegular expressions are divided into two categories: Basic REGEXP: base Regular Expression Extended REGXP: extending regular Expressionsgrep: A command to filter text using a template defined by a basic regular expression - e: using extended regular expressions, grep-e = Egrep - A number: When grep matches, the next nu
achieve some additional processing.The extension code is as follows, just implement the Initialize () method in the interface and add the instance to the container:1@Order (1)2 Public classApplicationcontextinitializertestImplementsOrg.springframework.context.applicationcontextinitializer {3 @Override4 Public voidInitialize (Configurableapplicationcontext applicationcontext) {5 6System.out.println ("Here is a custom applicationcontextinitializer that can be used to manipulate ApplicationC
Click the Start menu, locate the command prompt from the attachment, right-click Select Run as Administrator to open a command Prompt window, enter the DiskPart command, enter the DiskPart state, and then follow these steps:
1. Select a Physical Disk
Enter "SELECT disk N" To select the physical disk, where "n" represents the first few physical hard drives. If you are working on a 1th physical hard drive, you should enter "select Disk 0" and so on.
2. Create an
First step, select Physical Disk
Enter "SELECT disk N" To select the physical disk, where "n" represents the first few physical hard drives. If you are working on a 1th physical hard drive, you should enter "select Disk 0" and so on.
Step two, create an extended partition
Enter the "create partition Extended" command, and the system will automatically create an exten
First find the extension ID, enter the http://yurl.sinaapp.com/crx.php paste extension ID, click the Build button.
Chrome store CRX offline installation package download
First step: Enter the Application ID
The second step: here to save the right key to download
Alyzq Use instructions
If not, see the following procedure:
Below, download Google browser (Google Chrome) extended offline installation package CRX File The easiest way! It's really e
We've been using ASE for a long time, in the use of the process, in-depth understanding of its various functions, but for the extended stored procedures are basically not mentioned in the book, the Forum does not appear to have such problems, but it does solve some of the special problems, and the function is very powerful, I have studied this specifically and now share the results with you.
Sometimes you might have the need to do something with the
Data dictionary is a good thing, for development, maintenance is very important.However, it is not convenient to write descriptive narration in SQL Server, how to simplify and add changes to the extended attributes in batches?It would be nice to add 2 tables and 5 stored procedures, 2 triggers, and a table-valued function.Run the following SQL once to generate the related object and then run it:1. EXEC proc_util_desc_getcolumnnametodesctable, generate
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