We have an Elasticsearch cluster made of 3 master nodes and some data nodes.
I am trying to understand which of those need to be included in a client's hosts configuration. Specifically we're using PHP, but I do not believe that makes a difference.
What is the best set of hosts to use? Is it enough to include one master? Or is it better to include all masters, or even any/all data nodes? What is best practice?
The documentation isn't very clear on this: Elasticsearch PHP 5.x
Are there any advantages/disadvantages to different set ups?
by default all nodes are coordinator nodes and you can send queries to them so as you mentioned you can query against Data and Master nodes but it is better to not query against Data node because they are busy with querying and fetching data from their own disk. coordinators are responsible for correlate the results from Data nodes. so you should query against Master nodes. not only one node. all of them. because if one of them is down your cluster is still up.
for big cluster with 100 nodes or cluster with heavily searched, I recommended to use dedicated coordinator node. (master: false
ANDdata: false
)
Our community is visited by hundreds of web development professionals every day. Ask your question and get a quick answer for free.
Find the answer in similar questions on our website.
Do you know the answer to this question? Write a quick response to it. With your help, we will make our community stronger.
PHP (from the English Hypertext Preprocessor - hypertext preprocessor) is a scripting programming language for developing web applications. Supported by most hosting providers, it is one of the most popular tools for creating dynamic websites.
The PHP scripting language has gained wide popularity due to its processing speed, simplicity, cross-platform, functionality and distribution of source codes under its own license.
https://www.php.net/
Welcome to the Q&A site for web developers. Here you can ask a question about the problem you are facing and get answers from other experts. We have created a user-friendly interface so that you can quickly and free of charge ask a question about a web programming problem. We also invite other experts to join our community and help other members who ask questions. In addition, you can use our search for questions with a solution.
Ask about the real problem you are facing. Describe in detail what you are doing and what you want to achieve.
Our goal is to create a strong community in which everyone will support each other. If you find a question and know the answer to it, help others with your knowledge.