Listener failed to clean indices – How to solve this Elasticsearch error

Opster Team

Aug-23, Version: 6.8-8.9

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Briefly, this error occurs when Elasticsearch fails to delete old indices due to insufficient permissions, lack of disk space, or a network issue. To resolve this, you can check and adjust the user permissions, ensure there’s enough disk space, or troubleshoot network connectivity. Additionally, you can manually delete old indices if they are no longer needed. Also, ensure that the Elasticsearch cluster is healthy and all nodes are functioning properly.

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This guide will help you check for common problems that cause the log ” listener failed to clean indices ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: plugin, indices.

Log Context

Log “listener failed to clean indices” classname is CleanerService.java.
We extracted the following from Elasticsearch source code for those seeking an in-depth context :

            // Note: listeners are free to override the retention
            for (Listener listener : listeners) {
                try {
                    listener.onCleanUpIndices(retention);
                } catch (Exception e) {
                    logger.error("listener failed to clean indices"; e);
                }
            }

            logger.trace("done cleaning up indices");
        }

 

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