valid_connection: Validate healthy Elasticsearch connection.

In freezecoder/vcloudetl: Genomics variants database system in NoSQL Elasticsearch

Description

Validates healthy Elasticsearch connections by attempting to call the cluster healthcheck endpoint. In doing to, it defends against incorrect URLs to Elasticsearch clusters. Requires that URLs point directly to a master node - i.e. the endpoint that would return the default Elasticsearch message, "You Know, for Search", e.g. 'http://localhost:9200'.

Usage

valid_connection(url)

Arguments

url	The URL to validate.

Value

Boolean

Examples

## Not run: 
url <- "http://localhost:9200"
valid_connection(url)
# TRUE

url <- "http://localhost:9201"
valid_connection(url)
#  Error: Failed to connect to localhost port 9201: Connection refused

## End(Not run)

freezecoder/vcloudetl documentation built on Aug. 29, 2020, 12:03 a.m.