veeam deduplication

Data deduplication can reduce disk usage, but it may also increase IO if used improperly, and this feature will block the hard disk, so it is difficult to defragment when the hard disk is high, so it is sometimes necessary to disable deduplication and de-duplicate data optimization. This can be done in the following ways: (Attached: I disable it because of the various non-responsive running VirtualBox disk)

PHP array deduplication? Array deduplication $ Term = array_column ($ grade, 'condition'); $ term = array_flip ($ term); print_r ($ term ); Effect: Principle: Array_flip (): The function returns an inverted array. if the same value appears multiple times, the last key name will be used as its value, and all other key names will be lost. If the data type of the value in the original array is not a

Tags: Io OS SP file BS C ++ IOS nbsp FunctionThe unique () function is a deduplicated function. The unique function of STL is used to remove adjacent duplicate elements (only one retained ), another easy-to-ignore feature is that it does not really delete duplicate elements. It is a function in C ++, so the header file must be added with # include Int num [100];Unique (Num, Mun + n) returns the end address after num deduplication. The reason why the d

When deduplication is, temporary processing is disabled, and 80 Original Works are from the blog of "Deep Blue blog". You are welcome to repost them. Please indicate the source when you repost them. Otherwise, the copyright will be held legally responsible. Deep Blue blog: http://blog.csdn.net/huangyanlong/article/details/46041735 Temporary handling of 80 million data deduplication Recently, When I dedupli

Label: Erlang tail recursion Erlang generative Erlang list set deduplication% Set deduplication. ACC is initially passed into [] and stores the final result.Delsame ([], ACC)-> ACC;Delsame ([pre | T], ACC)-> checksame ([x | x % IntersectionCrosslist (L1, L2)->[X | x % UnionMergelist (L1, L2)->Delsame (lists: Merge (L1, L2), []).Conclusion: (1) the Erlang generative formula is guard; (2) the Erlang generativ

Data Deduplication in mysql and bitsCN.com optimization Data Deduplication and optimization in mysql After you change the primary key uid of user_info to the auto-increment id, you forget to set the original primary key uid attribute to unique. as a result, duplicate uid records are generated. To this end, you need to clear the records that are inserted later. You can refer to the attached documents for

Is there a two-dimensional array merge deduplication algorithm whose complexity is O (n )? Is there a two-dimensional array merge deduplication algorithm whose complexity is O (n )? Reply content: Is there a two-dimensional array merge deduplication algorithm whose complexity is O (n )? $a = [ ['id'=>1], ['id'=>2], ['id'=>3], ['id'=>4], ['id'

Example of array deduplication and flattening in Javascript, javascript Array Array judgment Before we talk about how to deduplicate and flatten arrays, let's first talk about how to judge arrays, because to process arrays, we must first determine whether the next data is an array. First, we all know that there are only five types of js data, namely Undefined, Null, Boolean, Number, and String. The array is just an objecttypeof([])The returned result

Tags: mysql database go heavyBecause the work needs to carry on the data to weigh, therefore does the record, actually is very small white question ....In fact, in terms of data deduplication, the best thing is to design the program and database when the data redundancy is considered, do not insert duplicate data. But,,,, this project, if two of the fields are duplicated at the same time, even if redundant, but also need to self-growing ID as the prim

This article mainly introduces php Bubble sorting, fast sorting, fast searching, and two-dimensional array deduplication instance sharing. For more information, see This article mainly introduces php Bubble sorting, fast sorting, fast searching, and two-dimensional array deduplication instance sharing. For more information, see I. Bubble Sorting The Code is as follows: // Bubble sortFunction bubble_s

This article mainly introduces the javascript array deduplication method, and compares and analyzes the principle and Operation Skills of javascript Array deduplication through two examples, for more information about how to deduplicate javascript arrays, see the example in this article. We will share this with you for your reference. The details are as follows: Method 1. Idea: Create a New empty array,

In oracle, some data is exactly the same. To clear duplicate data, only one non-duplicate data is retained. Thank you for providing the second deduplication SQL statement. This may be faster. Oracledeletetable1whererowidnotin (selectmax (rowid) fromtable1groupbycol1, col2) DELETEtablesWHEREr In oracle, some data is exactly the same. To clear duplicate data, only one non-duplicate data is retained. Thank you for providing the second

Recently, we have been studying the de-duplication of call record query data. We have been studying the getcontentresolver (). query method and made a little research on several parameters. The method for removing the call record is found. You can use distinct (number) as distinct_number to retrieve only one column of data, Cursor mcalllogcursor = getcontentresolver (). Query (calllog. CILS. content_uri, -------------- URI New String [] {"max (date) as max_date", calllog. CILS. Number, calllog.

URL deduplication bloom filter algorithm, error and others Fly with me, in the perfect world --- question I recently read some books, formulas, and algorithms. If I use a word to pick them up, this is an error. Speaking of errors reminds me of a story of my childhood. When I was a child, a friend of his family opened a small store on the second-level road. One day, the customer said to him with the just-bought bulk oil: The weight is not enough. He t

The unique () function is a deduplicated function. The unique function of STL is used to remove adjacent duplicate elements (only one retained ), Another easy-to-ignore feature is that it does not really delete duplicate elements. He is a function in C ++, Therefore, the header file must be added with # include Int num [100]; Unique (Num, Mun + n) returns the end address after num deduplication. The reason why the duplicate elements are not actua

true; } } The hashCode and equals methods must be implemented. We will see why they must be implemented later.The specific operation code is as follows:Copy codeThe Code is as follows: private static void removeListDuplicateObject (){List For (int I = 0; I Student student = new Student ("id", "name ");List. add (student );}System. out. println (Arrays. toString (list. toArray ()));Set Set. addAll (list );System. out. println (Arrays. toString (set. toArray ()));List. removeAll (list );Set. remo

JAVA object deduplication and array object sorting, java Array JAVA object deduplication Requirement: All I need to do is to remove the menu of each permission. The menu table structure is that the menu table obtained by ID RoleID MenuID should be MenuID and cannot be repeated. Therefore, to write the entity class of the menu table, rewrite the equals hashCode method to make two comparisons. In the followin

PHP two-dimensional array deduplication method (retain each key value while removing repeated items) -- uniqueness of two-dimensional array Deduplicate the following two-dimensional array: $arr = array( '0'=>array( 'name'=>'james', 'age'=>30, ), '1'=>array( 'name'=>'susu', 'age'=>26, ), '2'=>array(

In Hive, we often have this requirement: Perform GroupBy based on the same id and deduplicate the other field. For example, the following data is obtained: idpic1.jpg2.jpg1.jpg, neither DISTINCT nor 2col can be used to obtain GroupBy. We can use this UDAF: collect_set (col) to obtain ke for the same groupby. In Hive, we often have this requirement: Perform Group By based on the same id and deduplicate the other field. For example, the following data is obtained: id pic1.jpg2.jpg1.jpg, neither D

This article mainly introduces jQuery's method for implementing tag removing and deduplication, and analyzes in detail the implementation skills of html pages and js Code, which is of great practical value, for more information about how jQuery achieves tag deduplication, see the examples in this article. Share it with you for your reference. The specific implementation method is as follows: The html cod