PostCreate listener failed – How to solve this Elasticsearch error

Opster Team

Aug-23, Version: 2.3-2.3

Briefly, this error occurs when Elasticsearch encounters an issue while executing a PostCreate listener, which is a callback function that runs after a document is created. This could be due to a variety of reasons such as incorrect listener configuration, network issues, or resource limitations. To resolve this issue, you can try the following: 1) Check and correct the listener configuration, 2) Ensure the network connectivity is stable, 3) Increase system resources if they are insufficient, and 4) Check the Elasticsearch logs for more specific error details to guide further troubleshooting.

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

Log Context

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

     public void postCreate(Engine.Create create; Throwable ex) {
        for (IndexingOperationListener listener : listeners) {
            try {
                listener.postCreate(create; ex);
            } catch (Throwable t) {
                logger.warn("postCreate listener [{}] failed"; t; listener);

    public Engine.Index preIndex(Engine.Index index) {


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