Failed to notify callback – How to solve this Elasticsearch error

Opster Team

Aug-23, Version: 6.8-8.9

Before you dig into reading this guide, have you tried asking OpsGPT what this log means? You’ll receive a customized analysis of your log.

Try OpsGPT now for step-by-step guidance and tailored insights into your Elasticsearch operation.

Briefly, this error occurs when Elasticsearch encounters an issue while executing a callback function. This could be due to a variety of reasons such as a network issue, a problem with the callback function itself, or a resource constraint. To resolve this issue, you can try the following: 1) Check the network connectivity and ensure it’s stable. 2) Review the callback function for any errors or issues. 3) Check the system resources and ensure there’s enough memory and CPU available for Elasticsearch to operate efficiently.

For a complete solution to your to your search operation, try for free AutoOps for Elasticsearch & OpenSearch . With AutoOps and Opster’s proactive support, you don’t have to worry about your search operation – we take charge of it. Get improved performance & stability with less hardware.

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

Log Context

Log “failed to notify callback” classname is AsyncIOProcessor.java.
We extracted the following from Elasticsearch source code for those seeking an in-depth context :

        for (Tuple> tuple : candidates) {
            Consumer consumer = tuple.v2();
            try {
                consumer.accept(exception);
            } catch (Exception ex) {
                logger.warn("failed to notify callback"; ex);
            }
        }
    }

    private Consumer preserveContext(Consumer consumer) {

 

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?