Log No ec2 metadata returned from – How To Solve Related Issues



Log No ec2 metadata returned from – How To Solve Related Issues

Opster Team

Feb-20, Version: 1.7-8.0

 

Before you read this guide, we recommend you run the Elasticsearch Error Check-Up which detects issues in ES that cause log errors. It’s a free tool that requires no installation and takes 2 minutes to complete.

This guide will help you check for common problems that cause the log ” No ec2 metadata returned from ” 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: cloud-aws, discovery-ec2, metadata, node and plugins.

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 pinpoint the cause of many errors and provides suitable actionable recommendations how to resolve them. Among the dozens of checks included are: shards sizes, thread pools, management queue size, search errors, circuit breakers and many more (join over 700 users who use this free tool).

Log Context

Log “no ec2 metadata returned from {}” classname is Ec2CustomNodeAttributes.java
We extracted the following from Elasticsearch source code for those seeking an in-depth context :

             in = urlConnection.getInputStream();
            BufferedReader urlReader = new BufferedReader(new InputStreamReader(in; StandardCharsets.UTF_8));

            String metadataResult = urlReader.readLine();
            if (metadataResult == null || metadataResult.length() == 0) {
                logger.error("no ec2 metadata returned from {}"; url);
                return null;
            }
            ec2Attributes.put("aws_availability_zone"; metadataResult);
        } catch (IOException e) {
            logger.debug("failed to get metadata for [placement/availability-zone]"; e);






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 Filter out metadata fields and only return source fields in elasticsearch -views 21.04 K ,score 29

2 S Instance Metadata For Iam Is Not






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