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Elasticsearch provides a simple analysis of the index logic. Here we will only clarify the main context, and some details will be elaborated in future articles. If you call the elasticsearch index interface through Java APIs, you first construct a JSON string (represented as xcontent in ES, which is an abstraction of the content to be processed ), in indexrequest, specify the index to which the document will be indexed, its type, and the Document ID.
name, and then back to Sw_spaces_before_key, Constantly reciprocating.Analysis of the reply of memcache text protocolThis is the MEMCACHE_PARSE_RSP function in proto/memcache.c.It is also a finite state machine to complete the resolution, the following are these states.1 enum {2 Sw_start,3 Sw_rsp_num,4 Sw_rsp_str,5 Sw_spaces_before_key,6 Sw_key,7Sw_spaces_before_flags,/*5*/8 Sw_flags,9 Sw_spaces_before_vlen,Ten Sw_vlen, One Sw_runto_val, ASw_val,/*Ten*/ - Sw_val_lf, - Sw_end, the Sw_runto_cr
In the "Hbase-0.98.6 source analysis--put Writing client end Process" This article, we introduced the put write operation in the client side of the operation process, in the introduction of the Submit () method, there is a strange noun--nonce mechanism, Today, we will introduce the indispensable management mechanism of the nonce. HBase has a very strong fault-tolerant characteristics, and in the network world, the network instability is the default mu
JDK source code-AQS source code analysis, jdk source code aqs Unless otherwise specified, all the articles on this site are original. For reprinted articles, enter the address. AbstractQueuedSynchronizer (AQS) is the core of concurrent programming in JDK. ReentrantLock and CountDownLatch, which are often used in our w
To analyze the go-ethereum process, I want to start with a less reliant underlying technology component, and slowly dive into the core logic. directory go-ethereum code reading environment setting up the ether square yellow paper symbol index RLP source analysis Trie Source Analytics ethdb Source Analysis RPC Source Analysis
First, static analysis of the basic technology1, you can calculate the malicious program MD5 value by using software, and then retrieve the MD5 value to obtain information and use as a label "Md5deep winmd5"2, by retrieving the malicious code string to obtain the corresponding function call interpretation, functional behavior and module invocation. When the retrievable string is very young, it is possible t
During the upgrade of mootools from 1.3 to 1.4, only the string and event modules (now changed to domevent) were modified, for the source code analysis of these modules, see radish on the stick you can analyze the source code of 1.3: mootools 1.3 source code an
collection point, the structure definition of the collection point named latencysample: /* Representation of a latency sample: the sampling time and the latency * observed in milliseconds. * // * example of delayed sample */struct latencysample {// int32_t time when the delayed sample is created;/* we don't use time_t to force 4 bytes usage everywhere. * /// the specific delay time, in milliseconds uint32_t latency;/* latency in milliseconds. */};What is maintained in the dictionary is not a s
ArticleDirectory 2.1 extensions) 2.2 chrome 2.3 xulrunner 2.4 XPCOM 2.5 XP install 3.1 Firefox extension Structure 3.2 extended Installation Process 3.3 Analysis of the XP install Module 3.4 analysis of the rdf Module 3.5 extended Startup Process 4.1 difficulties in Analysis 4.2 analy
Spring Source Code Analysis-interface and abstract class analysis for Resource AccessStarting from today, we have taken a step-by-step approach to source code analysis. At the beginning, you must start with something simple. Let's start with Spring, and its Resource abstract
Spring's AOP implementation principle, brewing some days, before writing blog confidence is not very sufficient, so re-read one side of the implementation of AOP core code, but also from the Internet to find some examples of spring AOP analysis, but found that vinegar buy dog meat too much, the title tall, Most of the content is relatively superficial some of the introduction, may also be due to the relativ
Spring Source Code Analysis-interface and abstract class analysis for Resource access, springresource Starting from today, we have taken a step-by-step approach to source code analysis. At the beginning, you must start with something simple. Let's start with Spring, and its
): = pluginawareextensionmanager.get_instance () return extensionmiddleware (app, ext_mgr= ext_mgr) return _factoryThe function contains only one _factory function, which first obtains an instance of Pluginawareextensionmanager, which is an implementation of a singleton pattern, initialized at Apirouter initialization, and analyzed in the next section. Next, the constructor that initializes the extensionmiddleware,extensionmiddleware with Ext_mgr as a parameter is primarily to
remote host, add a JMX connection,Click the Threads tab on the right, select the main thread, and then click the Thread Dump button.Find the thread main information from the contents of the dump,Main thread Dump informationFrom the stack information of the main thread, you can see the sequence of calls to the program: Sparksubmit.main-Repl. Iloop.process, Main. The Org.apache.spark.repl.SparkILoop class inherits the Iloop class, and the Iloop process method invokes the LoadFiles (settings) and
From today on, I will start learning redis source code. The redis code is relatively small and very suitable for learning. It is a very good learning material, it looks like about 100 files, which are written in C language. I hope I can finally get rid of him. I don't need the C language for a long time and I will forget it. The first step in source code
"); return __res;}1. Function Purpose:Looking for mem_map[0 ... ( PAGING_PAGES-1)]. Spare items in the. That is, the mem_map[i]==0 item, if found.Returns the physical address, unable to find return 02. Tips:Why is this code implemented in C nested assembly?I personally think the C function will open up the stack frame. The task stack may be contaminated.At the same time, the function needs to be frequently called, in the assembly, the Register-level a
PHP source code analysis-session. auto_start configuration analysis Author: zhanhailiang date: Application Analysis In daily development, if session. auto_start = 0 is configured in php. ini by default, session_start must be called to enable the session: Kernel analysis
Android4.4 Component Analysis-service component-bindService source code analysis, android4 major components6.1.1. bindService Because the code implementation process of startService is analyzed earlier, the Code Analysis of bindSe
Block implements code analysis and block implements codeInternal Structure of the block First, write a block. void exampleBlock() { // NSConcreteStackBlock int a = 1; __block int b = 2; int(^blockTest0)(int c) = ^(int c){ return a + b + c; }; int c = 3; blockTest0(c); // NSConcreteGlobalBlock void(^blockTest2)(void) = ^(void){ ; }; blockTest2();} Convert clang
In fact, this article is not really a start-up code parsing, this article is mainly from the start-up process analysis to the Starthmaster part, for the first time this article will be about HBase pseudo-distributed debugging methods related to the introduction.After we pour the source into the IntelliJ IDE, we get the following code structure:Here we go into the
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