elasticsearch delete

Elasticsearch Introduction Elasticsearch is a full-text search server that can also be used as a NoSQL database to store documents and data in any format, while at the same time doing big data analysis. Elasticsearch has the following characteristics: 1. Full-text search engine, ES is a resume on the lucebe of the Kaiyuan Soso engine, can be used for full-text se

whether a useful tag exists before the end of the tag. if !(“tagA” in [tags] or “tagB” in [tags]) {drop { }} Why can't the index value be sum/average? Why is my field not of the Number type but String type? The grok document is very misleading. % {NUMBER: myfield} means to use the regular expression of a NUMBER to match, and the matched result grok is indexed as a string by default. To specify the index type, you must enter % {NUMBER: myfield: int} And: float. If the index of a field is a

First, download and install Elasticsearch relies on Java, the first to install ES before installing the Java, which is the default of our computer has been completed. Elasticsearch requires a minimum JDK version of 1.7.First download the installation package from Elasticsearch official website, we are Linux system, download the TAR package is more convenient. Th

Elasticsearch is a new member of the open source search platform, the real-time data analysis artifact, developed rapidly, based on Lucene, RESTful, distributed, cloud-oriented design, real-time search, full-text search, stability, high reliability, extensible, installation + easy to use, introduction are said to be very pleasant, Good to take out for a walk.Did a simple test, in two identical virtual machines, 20 million or so data,

0x01 Memory Tuning There are several ways to adjust ES memory allocations, and it is recommended that you adjust the settings in/etc/sysconfig/elasticsearch (you can also modify the startup script under bin directly). # Directory where the elasticsearch binary distribution resides Es_home=/usr/share/elasticsearch # Heap Size (defaults to 256m min, 1g max) # Modi

Search engine Selection Research Document ELASTICSEARCH Introduction *Elasticsearch is a real-time, distributed search and analysis engine. It can help you deal with large-scale data at an unprecedented rate.It can be used for full-text search, structured search and analysis, and of course you can combine the three.Elasticsearch is a search engine based on the full-text search engine Apache lucene™, which c

defined as follows: Int (primary + number_of_replicas)/2) + 1 consistencyThe value can beone(Only main parts ),all(Primary shard and all replica shards), or the defaultquorum-Most multipart copies.Note:number_of_replicasIs the number of replica shards in the index settings, not the number of active replica shards. If you specify three replica shards in the indexquorumThe value is: Int (primary + 3 replicas)/2) + 1 = 3 When only two nodes are startedquorumAs a result, you cannot

[TOC] Curl Operation Curl IntroductionCurl is an open source file Transfer tool that works with URL syntax in the command line mode, and using curl makes it easy to implement common get/post requests. Simply think of a tool that can access the URL below the command line. In the CentOS default library there are curl tools, if not please install Yum.curl -X 指定http的请求方法 有HEAD GET POST PUT DELETE -d 指定要传输的数据 -H 指定http请求头信息curl创建索引库 curl

Flume Twitter Zipkin Storm These projects are powerful, but are too complex for many teams to configure and deploy, and recommend lightweight download-ready scenarios, such as the Logstash+elasticsearch+kibana (LEK) combination, before the system is large enough to a certain extent.For the log, the most common need is to collect, query, display, is corresponding to Logstash, Elasticsearch, Kib

Kibana + Logstash + Elasticsearch log query system, kibanalostash The purpose of this platform is to facilitate log query During O M and R D. Kibana is a free web shell. Logstash integrates various log collection plug-ins and is also an excellent regular-cut log tool. Elasticsearch is an open-source search engine framework (supporting cluster architecture ). 1 installation requirement 1.1 theoretical Topo

ClientThere are several places to use Java client : Perform standard index, GET, delete, and search in a cluster that exists Perform administrative tasks in the cluster Start all nodes when you want to run Elasticsearch nested within your application or when you want to run unit tests or set tests Getting a client is very easy, and the most common steps are as follows: Create

1. No log Analysis System 1.1 operation and maintenance pain points1. Operations are constantly looking at various logs.2. The fault has occurred before looking at the log (time issue. )3. Many nodes, log scattered, the collection of logs became a problem.4. Run logs, errors and other logs, no specification directory, collect difficulties.1.2 Environmental Pain Points1. Developers cannot log on to the online server to view detailed logs.2. Each system has a log, log data scattered difficult to f

Java uses ElasticSearch to query millions of users nearby, The previous article introduced how ElasticSearch uses Repository and ElasticSearchTemplate to construct complex query conditions, and briefly introduced the use of geographical location in ElasticSearch. In this article, we will take a look at the use of ElasticSearc