Unexpected failure during current state n – How to solve this Elasticsearch error

Opster Team

Aug-23, Version: 6.8-7.15

Briefly, this error occurs when Elasticsearch encounters an unexpected issue while trying to retrieve the current state of the cluster. This could be due to network issues, hardware failures, or data corruption. To resolve this issue, you can try restarting the Elasticsearch service, checking the health of your network, or verifying the integrity of your data. If the problem persists, consider checking the Elasticsearch logs for more detailed error messages, which can provide further clues to the underlying issue.

This guide will help you check for common problems that cause the log ” unexpected failure during [{}]; current state:\n{} ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: cluster, routing.

Log Context

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

                                pendingRerouteListeners = null;
                        final 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);


How helpful was this guide?

We are sorry that this post was not useful for you!

Let us improve this post!

Tell us how we can improve this post?