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Linux root partition usage 100%, but the view/partition under the directory is not big, not occupied, this how to deal with.Restart is definitely effective, the current processing situation: Restart Application, Space released1, lsof | grep deletd2, reboot rebootLinux has a disk footprint of 100%, unable to find which large files are running out of disk.Using DF-LH under LinuxWhen viewing disks:/DEV/SDA1 13

Look at the recursion of the function tonight, inside the function, you can call other functions. If a function calls itself internally, the function is a recursive function. the advantage of recursive functions is that they are simple in definition and clear in logic. In theory, all recursive functions can be written in a circular way, but the logic of the loop is not as clear as recursion. It seems that there are basically three ways to write about the number of

Demand:1. Print 1-100-digit right triangle, less than '-'2. Using an irregular array implementationTechnical assessment:1. Arrays, multidimensional arrays, irregular arrays2. Self-increment self-decrement operator3.for multi-layered loops and jumps Break Jump Statement Continue continuation statement 4. String：Ideas:1. Use an irregular array implementation to arbitrarily define the maximum value of a number2. Using multiple Nested Lo

This log is a complete reading of a journal inspired by the original: Evil eval and New Function. We rarely use the new array to define an array, and I don't think that the new array has such a magical magic that we can create n empty elements with the new array (n), and there are n-1 blanks in the middle of n elements, and by join, We can put something in these blanks to make up the special strings that we need, which inspires me that I can easily implement a "continuous operation of regular e

Tags: des style blog http io using AR java strongTransferred from: http://www.51testing.com/html/01/n-867201-2.html"Problem phenomenon"On-lineMySQLDatabase burst a slow query, the DBA observed that the query server IO soared, io occupancy rate of 100%, execution time up to about 7s.SQLThe statements are as follows: SELECT DISTINCT g.*, cp.name as Cp_name, c.name as Category_name, t.name as Type_name fromgm_game G left JOIN Gm_c P cp on cp.id = g.cp_id

This article mainly introduces the python to achieve the selection of 100 prime numbers, because is a novice, limited thinking, if there is a problem, but also please correct me, need friends can refer to the What we share here is the use of Python to select the prime numbers within 100. The code is very simple, there is no more nonsense.? 1 2 3 4 5 6 7 8 9 10 "" "Use filter to select the

Problem: Print 1 to 100 million square results with multi-threaded knowledge output?Problem teardown: 1. A large number of threads, consider the thread pool to manage2. How does the main thread monitor other threads? (Print end time after all threads are finished)3. Optimal number of threads4.1 to 100 million how to divide the range5. How to bring efficiency to the highest and spend time to a minimumKnowled

DOCTYPE HTML PUBLIC "-//w3c//dtd HTML 4.01//en" "HTTP://WWW.W3.ORG/TR/HTML4/STRICT.DTD">HTMLLang= "en">Head>title>100% Height CSStitle>Metahttp-equiv= "Content-type"content= "text/html; charset=utf-8">styletype= "Text/css">*{margin:0;padding:0;}Html,body{padding:0;margin:0; height:100%; }//must be written together html,body. Only IE6 is possible to write the body individually. #container{ height:

The public number 100 days, is a worthy mention of the day! I've been doing this public number since October 31, 2017, and it's almost 100 days from today's February 7, 2018. Although the public has applied early, it was not until October 31 last year that I had a real plan to make a good public number.In fact, I did not think of the public number of the topic at the beginning, but I personally think that t

This morning 11:35~11:40 around, due to load balance in the two cloud server CPU occupied suddenly to 100%, resulting in 5 minutes of the site can not be normal access, please bring trouble, please understand! (The red curve in the image above indicates CPU usage) After analysis, we confirmed that the CPU 100% problem is related to enabling Windows virtual memory. The original two cloud servers were

The general first learned that the two occupy the same space. For example, I store 5 char, both of which are actually taking up 5 char "errata: varchar is actually stored with a byte to hold the length."But what about the two when designing the database?The answer is no. "At least the varchar type needs to use one or two bytes to store the length of the data before the data" "the way they operate in memory is also different, as shown in the following example." Look at the following example . As

In Toad, the undo tablespace undotbs1 usage has reached 100%, but the strange thing is that the database does not hang and still works. The use of the EM View UNDOTBS1 table space provided by Oracle also achieves 78.8 In the previous article, we described the 3 states of the Undo table space Central: active, EXPIRED, unexpired. After understanding the concept, the individual believes that without setting the undo Tablespace retention Guarantee, the

1. Review: An online host late-night continuously received alarm system disk used overrun alarm. Login host View But encountered confusion: in check disk usage df–h out of the disk usage is exactly the same as the alarm information, has been occupied by 100%, but to view the directory Size Du, but show the actual directory size is not the case, but there is a lot of free space. Disk usage df–h result is 100