Log Unexpected failure during ; current state:n – How To Solve Related Issues


Log Unexpected failure during ; current state:n – How To Solve Related Issues

Opster Team

Jan-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 ” Unexpected failure during ; current state:n ” 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: cluster and routing.

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 “Unexpected failure during [{}]; current state:n{}” classname is RoutingService.java
We extracted the following from Elasticsearch source code for those seeking an in-depth context :

                     
Override
                    public void onFailure(String source; Exception e) {
                        rerouting.set(false);
                        ClusterState state = clusterService.state();
                        if (logger.isTraceEnabled()) {
                            logger.error(() -> new ParameterizedMessage("unexpected failure during [{}]; current state:\n{}";
                                source; state); e);
                        } else {
                            logger.error(() -> new ParameterizedMessage("unexpected failure during [{}]; current state version [{}]";
                                source; state.version()); 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 Github Issue Number 23199

2 No Cluster Health With 2 Nodes

Optimize Elasticsearch Performance

Try The Tool