ElasticSearch

开放公开，火力全开（第二部分）

由 旧时模样 提交于 2021-01-29 22:47:28
作者： Shay Banon 请注意： 最初发布这篇博客后，我们又增发了两篇博客来补充一些详细信息： 许可协议变更澄清 和 为什么我们必须变更许可协议 。 Elasticsearch 和 Kibana 的许可协议即将变更 我们即将把根据 Apache 2.0 许可授权的 Elasticsearch 和 Kibana 的源代码变更为双重许可模式（即 SSPL 1.0 和 Elastic 许可），以便用户选择适合自己的许可。通过这一许可协议的变更，这样既能确保我们的社区和客户继续以免费开放的方式使用、修改和重新分发代码，又能开展基于代码的协作，而且还可以限制云服务提供商在不向社区提供任何回馈的情况下，将 Elasticsearch 和 Kibana 作为一项对外提供的服务，从而保护我们在开发免费及开放产品方面的持续投资。此次变更将适用于 Elasticsearch 和 Kibana 的所有维护分支，并从我们即将发布的 7.11 版本开始生效。我们的发行版将继续使用与三年前相同的 Elastic 许可。 此次源代码许可协议变更 对绝大部分免费使用默认分发版的社区用户没有影响 ，也 不会影响我们的云服务客户或自管型软件客户 。 近年来，市场已发生了很大的变化，社区开始逐渐的认识到，开源公司只有更好地保护了自己的软件，才能够实现持续创新和进行必要的投资。随着很多公司不断的转型到 SaaS

Why Java High Level REST Client got introduced in Elastic search?

由 一世执手 提交于 2021-01-29 20:23:20
问题 There are two Java Rest clients named Java High Level REST Client and Java Low Level REST Client to integrate with Elastic Search. When did Java High Level REST Client got introduced in Elastic search and why? 回答1: If you follow the official documentation you will get to know the differences, how they work and the reason behind adding the Java High Level REST Client(JHLRC) . Coming to the first question when JHLRC was added, as shown in official doc, it was added in 6.0.0-beta1 release.

Secure connection using transport client

由 ↘锁芯ラ 提交于 2021-01-29 20:10:52
问题 Need to connect to a secure elastic search which has https authentication using Transport client in java code. I have userId and password to connect however need example on how can we do it? I am using elasticsearch 5.6.0. I was looking for xpack and sheild options but could not make use of them. 回答1: I used PreBuiltXpackTransportClient and could connect to the secured elastic search server. Refer documentation here. 来源： https://stackoverflow.com/questions/54327118/secure-connection-using

Elasticsearch - split by comma - split filter Logstash

由 妖精的绣舞 提交于 2021-01-29 19:31:14
问题 I have a field where values are dynamic. I want to store space separated tokens in an array field for completion suggester Let's say if my field val is hi how are you then I want to have an array with [hi how are you, how are you, are you, you] I tried with split filter as my data in csv . I couldn't achieve that. Is there anyway to do this with only ES, Logstash. 回答1: Based on the solution I linked to, you can achieve what you need as follows. First create an ingest pipeline that leverages

Mongodb - Setting the replication at the db or collection level

由 大憨熊 提交于 2021-01-29 18:12:33
问题 I come across the following phase and I had fair idea of distributed systems like hdfs and elasticsearch etc .. A replica set in MongoDB is a group of mongod processes that maintain the same data set. Replica sets provide redundancy and high availability, and are the basis for all production deployments. This section introduces replication in MongoDB as well as the components and architecture of replica sets. The section also provides tutorials for common tasks related to replica sets. In all

Set default value to elasticsearch index.max_inner_result_window parameter

由 喜你入骨 提交于 2021-01-29 18:11:40
问题 I'm actually using elasticsearch 6.7 and I get an error while searching in ES : Top hits result window is too large, the top hits aggregator [instances]'s from + size must be less than or equal to: [100] but was [2147483647]. This limit can be set by changing the [index.max_inner_result_window] index level setting. I know how to change this parameter, this is not the issue. I actually use this to change the parameter on existing indexes: PUT _all/_settings { "index.max_inner_result_window":

Problem with seting up of index lifecycle

由 非 Y 不嫁゛ 提交于 2021-01-29 18:05:48
问题 I have the index with data from filebeat. I have set up the hot phase: maximum index size 600mb maximum age 4d Could you tell me, how to achive this behaviour: when the index come to 600mb OR age 4d , the index skip to warm phase read-only. The new index is created in a hot phase Now what I have is that when my index come to 600mb then I cannot write new data, I can delete index but I do not see a new one, and generally all elastic stops working. 来源： https://stackoverflow.com/questions

Return position and highlighting of search queries in Elasticsearch

由 大城市里の小女人 提交于 2021-01-29 18:05:30
问题 I am using the official Elasticsearch-PHP client installed on a personal Debian server, and what I am trying to do involves indexing, searching and highlighting individual documents. i.e. each search result will only return one document - which will then be highlighted for "simple query string" searches. I am also using FVH (fast vector highlighting). My question is similar to this one Position as result, instead of highlighting and the test code is basically the same so I won't repeat that

facets and doing some filtering based on facets

由 浪尽此生 提交于 2021-01-29 15:50:16
问题 I have a question about facets and doing some filtering based on facets. i know this is a repeated question but i am unable find the answer. i would like to know how can i implement the same functionality in elastic search. lets asume that I have an index about cars and some facets -- eg. model and color. color [ ] red (10) [ ] blue (5) [ ] green (2) model [ ] bmw (4) [ ] vw (5) [ ] ford (8) if I select a model I would like to get only color facets for that model, but I still would like to

Complex nested Elastic NEST Query

由 女生的网名这么多〃 提交于 2021-01-29 15:45:05
问题 How would I convert this to the equivalent Nest query? { "query": { "nested": { "path": "boundedContexts", "query": { "nested": { "path": "boundedContexts.aggregateRoots", "query": { "nested": { "path": "boundedContexts.aggregateRoots.modelMetaData", "query": { "bool": { "must": [ { "match": { "boundedContexts.aggregateRoots.modelMetaData.modelReferenceId": "4e7c5c0e-93a7-4bf6-9705-cf1327760e21" } }, { "match": { "boundedContexts.aggregateRoots.modelMetaData.modelType.name": "AggregateRoot" }
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