Error firing refresh listener – How to solve this Elasticsearch error

Opster Team

Aug-23, Version: 6.8-7.15

Briefly, this error occurs when Elasticsearch is unable to execute a refresh operation due to issues like insufficient memory, heavy indexing, or a large number of shards. To resolve this, you can increase the heap size, optimize your indexing process, or reduce the number of shards. Additionally, consider using the “refresh” API sparingly as it can be resource-intensive. Regular monitoring of your Elasticsearch cluster can also help identify and prevent such issues.

This guide will help you check for common problems that cause the log ” error firing refresh listener ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: index, refresh, shard.

Log Context

Log “error firing refresh listener” classname is
We extracted the following from Elasticsearch source code for those seeking an in-depth context :

        if (listenersToFire != null) {
            for (final Tuple> listener : listenersToFire) {
                try {
                } catch (final Exception e) {
                    logger.warn("error firing refresh listener"; e);