Routing Documents to shardsWhen you index a document, it is stored on a single primary shard. How does Elasticsearch know which shard the document belongs to? When you create a new document, how does it know if it should be stored on Shard 1 or Shard 2?The process cannot be random because we will retrieve the document in the future. In fact, it is determined by a simple algorithm:shard = hash(routing) % num
the number of primary shards in the index number_of_primary_shards, the remainder as the primary shard number, usually 0 to Number_of_primary The remainder range between the _shards-1. This method calculates which shard the data is stored in.
This explains why the number of primary shards cannot be changed after the index is created: if the number of primary shards can be modified after creation, all previously obtained values will be invalidated, an
ElasticSearch exposes the Local Arbitrary File Read vulnerability, affecting all versions earlier than 1.4.5 and 1.5.2.
Recently, exploit-db has revealed the Local Arbitrary File Read vulnerability caused by Path Transversal, which affects all versions earlier than 1.4.5 and 1.5.2. I tried several times on zoomeye and found that the affected area of the vulnerabi
"," ext41 ":" src=10.0.0.1 dst=2.1.2.2 spt= 1232 "," Ext9 ":" src=10.0.0.1 dst=2.1.2.2 spt=1232 "}} ]}}As you can see, there will be an extension ext linked fields (not just ext), sometimes three, sometimes one, or even 10, in the rear.Now the way I parse it isdecoded = Json_decode ($json); Decode JSON$results = $decoded->hits->hits;foreach ($results as $item) {$id = $item->_id; Get the ID$version = $item->_source->version;
the _scroll_id value sent to the server. The description is the same object.Step three: Repeat the second step until the data in the hits is empty. At this point, all the data for the query is finishedFourth step: Delete the _scroll_id. The GET request looks like this:DELETE/_search/scrollc2nhbjszozm1mtpvrkjrrhnwbfniv2rplvhlbwlyc1h3ozm1mdpvrkjrrhnwbfniv2rplvhlbwlyc1h3oziznzpnv2jcmkq1rvfbdv90d3zjoevhotl3oze
The basic idea:
1. Get the path to the file
2. List of management files
Here's how:
This sentence is to get your full directory is the path from the root directory to the Documents directory like xxx/xxxx/xxx/documents/NSString *docs = [Nshomedirectory () stringbyappendingpathcomponent:@ "
Author: Ma Jian
Email: stronghorse@tom.com
Home: Http://stronghorse.yeah.net
Version: 1.01
Initial release Date: 2005.08.29
Date Last updated: 2005.09.28
DirectoryFirst, the prefaceIi. general steps for obtaining files from e-book or Web pagesThird, from e-book or Web page to get the link in the CSS fileFour, from e-book or Web page to get links in the JS fileV. Get
Here is an example of the official 11g document:Today, how to get the knowledge you need quickly from the official documents. Official online document Address: http://tahiti.oracle.com/almost includes documentation for Oracle's various products (Oracle DB12C's documentation has not been updated) offline: Www.oracle.com that's not much. Take 11g official web documentation as an example:Getting started page:H
The phone sandbox model has four folders: Documents,tmp,app,library1.Documents you should write all the application data files to this directory. This directory is used to store user data or other information that should be backed up regularly.2,Appname.app This is the application's package directory, which contains the application itself. Because the application
how to get rid of manual line breaks in Word documents
(1) Click Replace on the Edit menu;
(2) On the Replace dialog box, click the Advanced button;
(3) Move the cursor to the Find what box, and then click the Special Characters button, and then clicking Manual Line Break (^l);
(4) Move the cursor to the Replace with box, click the Special Character button, and then click Paragraph mark (^p).
(5) Click
Applies to PowerShell or later versions
Starting with PowerShell 30, the PowerShell itself does not have a bundle of help documents. The user has to use the command update-help to update the PowerShell help document and download it to the locally protected PowerShell folder. is protected because regular users cannot perform the update command.
The next time you want to see a help document without a command, you can simply use the online version. The
How do I get rid of wavy lines in English letters in Word documents? We are in the editing Word document, often fill in some English alphabet information, this time the Word document will often appear wavy underline, give a person is not very good feeling, below describes how to remove it, the following for you to introduce, to see!
Method/Step
Open the Word main interface, enter English c
; }The first parameter passed in is the 500 paging address we formed above, the return value of the function is the source code of the Web page (we want the article address and the title is in it, and then we want to parse them out).Step Two: Parse the address and title of the article from the source code of the Web page obtainedWe want to use the famous Htmlagilitypack class library, Htmlagilitypack is an HTML document parsing tool, through which we can easily
=""; } finally { if(Reader! =NULL) reader. Close (); if(Response! =NULL) Response. Close (); } returnresult; }The first parameter passed in is the 500 paging address we formed above, the return value of the function is the source code of the Web page (we want the article address and the title is in it, and then we want to parse them out).Step Two: Parse the address and title of the article from the source c
. But it is still very young, currently only 3 years old, from the heat of GitHub, its future development is a bright future, and Google's investment in the go language for the benefit of the COCKROACHDB is direct, so maintain continued attention.In addition, if you do have cross-room multi-data center needs, and several computer room location is not far away, to NTP (if the COCKROACHDB based on the implementation of NTP HLC interested, you can go to this article: http://www.jianshu.com/p/ 8500
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