Host list for ” + key + ” is empty but type is ” + type + ” – Elasticsearch Error How To Solve Related Issues



Host list for ” + key + ” is empty but type is ” + type + ” – Elasticsearch Error How To Solve Related Issues

Updated: July-20

Elasticsearch Version: 1.7-8.0

Before you begin reading this guide, we recommend you try running the Elasticsearch Error Check-Up  which can resolve issues causing many errors 

 

This guide will help you check for common problems that cause the log “host list for ” + key + ” is empty but type is ” + type + “” to appear. It’s important to understand the issues related to the log, so to get started, read the general overview on common issues and tips related to the Elasticsearch concepts: plugin.


Advanced users might want to skip right to the common problems section in each concept or try running the Check-Up which analyses ES to discover the cause of many errors and provides suitable actionable recommendations (free tool that requires no installation). 

Log Context

Log”host list for [” + key + “] is empty but type is [” + type + “]”classname  is HttpExporter.java
We extracted the following from Elasticsearch source code for those seeking an in-depth context :

Exporter.TYPE_SETTING.getConcreteSettingForNamespace(namespace).get(Settings.EMPTY);
  if (Objects.equals(type; defaultType)) {
  // hosts can only be empty if the type is unset
  return;
  } else {
  throw new SettingsException("host list for [" + key + "] is empty but type is [" + type + "]");
  }
  }
 
  boolean httpHostFound = false;
  boolean httpsHostFound = false;

Related issues to this log

We have gathered selected Q&A from the community and issues from Github, that can help fix related issues please review the following for further information :

1 Filebeat unable to send data to logstash which results in empty data in elastic & kibana -views 69 ,score 3

How to put the value of {{ctx.payload.aggregations.bucketAgg …  



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