PostDelete listener listener failed – How to solve this Elasticsearch error

Opster Team

Aug-23, Version: 8.3-8.9

Briefly, this error occurs when a post-delete listener in Elasticsearch fails to execute its task. This could be due to a variety of reasons such as a network issue, a problem with the listener itself, or a bug in the Elasticsearch code. To resolve this issue, you can try restarting Elasticsearch, checking the network connection, or debugging the listener to identify any potential issues. If the problem persists, consider updating Elasticsearch to the latest version as it may contain a fix for this issue.

This guide will help you check for common problems that cause the log ” postDelete listener [” + listener + “] failed ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: index, delete, shard.

Log Context

Log “postDelete listener [” + listener + “] failed” classname is
We extracted the following from Elasticsearch source code for those seeking an in-depth context :

            assert delete != null;
            for (IndexingOperationListener listener : listeners) {
                try {
                    listener.postDelete(shardId; delete; result);
                } catch (Exception e) {
                    logger.warn(() -> "postDelete listener [" + listener + "] failed"; e);



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