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elasticsearch 5.5 mapping问题

wangjueying 回复了问题 • 3 人关注 • 3 个回复 • 4465 次浏览 • 2017-08-07 14:51 • 来自相关话题

es5.x和es2.x,在查询语法(query)上有何不通?

laoyang360 回复了问题 • 2 人关注 • 1 个回复 • 4222 次浏览 • 2017-08-07 12:17 • 来自相关话题

启动es-Error occurred during initialization of VM Could not reserve enough space for 2097152KB object

fengzxia 回复了问题 • 1 人关注 • 2 个回复 • 10699 次浏览 • 2017-09-19 18:49 • 来自相关话题

elasricsearch词干

laoyang360 回复了问题 • 2 人关注 • 2 个回复 • 1737 次浏览 • 2017-08-05 19:07 • 来自相关话题

elasticsearch 安装脚本

guoliang_1992 发表了文章 • 0 个评论 • 3238 次浏览 • 2017-08-05 14:40 • 来自相关话题

1:需要传入安装路径这个参数
2:默认是安装5.2.2,可以在脚本中修改
注意:
因为不能上传.sh结尾的,我把后缀名改为.doc 使用的时候再改回.sh即可
 
有不完善的地方,还望大家指正(:
 
installDir=$1
curl -L -O https://artifacts.elastic.co/d ... ar.gz

mkdir $installDir
echo "安装的位置$installDir"
tar -xvf elasticsearch-5.2.2.tar.gz -C $installDir

mv $installDir/elasticsearch-5.2.2 $installDir/elasticsearch
echo "添加es用户 esuser 组 esuser"
groupadd esuser
useradd esuser -g esuser -p esuser

echo "输入es用户密码"
passwd esuser

cd $installDir
chown -R esuser:esuser $installDir/elasticsearch
###sh +x $installDir/elasticsearch/bin/elasticsearch -Ecluster.name=my_cluster_name -Enode.name=my_node_name

function install_mvn(){
wget http://repos.fedorapeople.org/ ... .repo -O /etc/yum.repos.d/epel-apache-maven.repo
yum -y install apache-maven

}
function getik(){
ver="v5.2.2"
yum -y install git
git clone https://github.com/medcl/elasticsearch-analysis-ik
cd elasticsearch-analysis-ik
git checkout tags/$ver
mvn clean
mvn compile
mvn package
cd -

}
install_mvn
version=5.2.2
getik
mkdir $installDir/elasticsearch/plugins/ik
unzip elasticsearch-analysis-ik/target/releases/elasticsearch-analysis-ik-$version.zip -d $installDir/elasticsearch/plugins/ik

[求助] mac, elasticsearch 5.5.1安装中文分词器后,无法正常启动

guoliang_1992 回复了问题 • 4 人关注 • 2 个回复 • 4199 次浏览 • 2017-08-05 14:58 • 来自相关话题

死磕Elasticsearch交流群,和你一起,共同成长!

ancestor 回复了问题 • 4 人关注 • 1 个回复 • 6206 次浏览 • 2017-08-04 23:00 • 来自相关话题

[求助]日志脱敏:filebeat>logstash>es>kibana

Lincoln 回复了问题 • 3 人关注 • 2 个回复 • 7046 次浏览 • 2018-04-27 10:35 • 来自相关话题

为什么es5.4用missing这个过滤报错呢,是废弃了嘛

novia 回复了问题 • 2 人关注 • 1 个回复 • 8420 次浏览 • 2017-08-04 15:41 • 来自相关话题

elasticsearch 返回基于指标计算后的指标

回复

yrcumt 回复了问题 • 2 人关注 • 1 个回复 • 3473 次浏览 • 2017-08-04 22:29 • 来自相关话题

单机环境下怎样确定ES分片数量

BrickXu 回复了问题 • 7 人关注 • 4 个回复 • 9924 次浏览 • 2017-08-07 14:52 • 来自相关话题

Logstash通过output写入ES时,无法自动创建索引

yangg 回复了问题 • 3 人关注 • 3 个回复 • 17107 次浏览 • 2017-08-05 03:25 • 来自相关话题

谁帮忙看下这个错误

Erin 回复了问题 • 4 人关注 • 4 个回复 • 23020 次浏览 • 2020-10-28 20:28 • 来自相关话题

Lucene 6 基于BKD Tree Index 的应用

keehang 发表了文章 • 0 个评论 • 6129 次浏览 • 2017-08-04 10:20 • 来自相关话题

BKD Tree 
https://www.elastic.co/blog/lucene-points-6.0
Block k-d trees are a simple yet powerful data structure. At index time, they are built by recursively partitioning the full space of N-dimensional points to be indexed into smaller and smaller rectangular cells, splitting equally along the widest ranging dimension at each step of the recursion. However, unlike an ordinary k-d tree, a block k-d tree stops recursing once there are fewer than a pre-specified (1024 in our case, by default) number of points in the cell.

At that point, all points within that cell are written into one leaf block on disk and the starting file-pointer for that block is saved into an in-heap binary tree structure. In the 1D case, this is simply a full sort of all values, divided into adjacent leaf blocks. There are k-d tree variants that can support removing values, and rebalancing, but Lucene does not need these operations because of its write-once per-segment design.
 
At search time, the same recursion takes place, testing at each level whether the requested query shape intersects the left or right sub-tree of each dimensional split, and recursing if so. In the 1D case, the query shape is simply a numeric range whereas in the 2D and 3D cases, it is a geo-spatial shape (circle, ring, rectangle, polygon, cube, etc.).
测试集合:模拟一亿条
0," nnrIuS","raet","lnsr","inu ","saia",83.405273,73.302012,3991,24,"N"," usA","airport","rra i"
1,"omlritp","aaVe","y Mu","AaVV","NMc ",15.459643,-20.826241,2627,54,"a","eemo","airport","MaArp"
2,"kyaneMr","iasm","raAA"," tnt","inls",16.606066,38.663728,2761,53,"o","arIi","airport","uiron"



1. General Multidimensional Space Points
   Search for points with exact given values. 
  Search for points which has one of the value from a given set of values. 
Search for points within a given range. 
Get the number of points which has exact point.
Get the number of points within a given range. (Ranges are multidimensional ranges. In 3D, they are boxes.)
Divide points into range-buckets and get the count in each buckets. (Range bucket is a range which has a label in it)
 
2. Locations on the planet surface. (Latitude, Longitude)
  Find closest set of airports to a given town.  
  Find the set of airports within a given radius from a particular town.
  Find the set of airports inside a country. (Country can be given as a polygon) 
  Find the set of airports within a given range of Latitudes and Longitudes. It is a Latitude, Longitude box query. (For a examples: Airports closer to the equatorial) 
  Find the set of airports closer to a given path. (Path can be something like a road. Find the airports which are less than 50km away from a given highway)
  Count the airports in each country by giving country maps as polygons.
 
search  result:
 
Loading Data is finished ----------------------------------------------------------------------
建索引花费时间:982ms
LatLon - Box Query Example------------------------------------------------------------------------------
search_LatLon_Box 花费时间:69ms

LatLon - K Nearest------------------------------------------------------------------------------
search_LatLon_Nearest 花费时间:108ms

DoublePoint 1D Point Exact------------------------------------------------------------------------------
search_Double_1D_Exact 花费时间:10ms

DoublePoint 1D - Range------------------------------------------------------------------------------
search_Double_1D_range 花费时间:8ms

DoublePoint 1D - Range Buckets -----------------------------------------------------------------------------
search_Double_1D_range_bucket 花费时间:58ms

DoublePoint multi dimensional - Range------------------------------------------------------------------------------
search_Double_MiltiDimensional_Range 花费时间:1ms
 
 
 

elasticsearch 使用scroll查询,为什么每次查询结果相同

yangg 回复了问题 • 3 人关注 • 3 个回复 • 4320 次浏览 • 2017-08-05 03:34 • 来自相关话题