Before you begin reading this guide, we recommend you run Elasticsearch Error Check-Up which analyzes 2 JSON files to detect many errors.
To easily locate the root cause and resolve this issue try AutoOps for Elasticsearch & OpenSearch. It diagnoses problems by analyzing hundreds of metrics collected by a lightweight agent and offers guidance for resolving them. Take a self-guided product tour to see for yourself (no registration required).
This guide will help you check for common problems that cause the log ” Unable to gather network information ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: network.
Log Context
Log “Unable to gather network information” classname is IfConfig.java.
We extracted the following from Elasticsearch source code for those seeking an in-depth context :
public static void logIfNecessary() {
if (logger.isDebugEnabled()) {
try {
doLogging();
} catch (IOException e) {
logger.warn("unable to gather network information"; e);
}
}
}
/** perform actual logging: might throw exception if things go wrong */
