An error occurred while reloading file file – How to solve this Elasticsearch error

Opster Team

Aug-23, Version: 8.3-8.9

Briefly, this error occurs when Elasticsearch attempts to reload a file but encounters an issue, possibly due to the file being inaccessible, corrupted, or not found. To resolve this, ensure the file path is correct and the file is accessible. Check the file’s integrity to ensure it’s not corrupted. If the file is being used by another process, ensure it’s released before reloading. Lastly, check the file’s permissions to ensure Elasticsearch has the necessary access rights.

This guide will help you check for common problems that cause the log ” An error occurred while reloading file [” + file + “] ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: plugin.

Log Context

Log “An error occurred while reloading file [” + file + “]” classname is
We extracted the following from Elasticsearch source code for those seeking an in-depth context :

        public void onFileChanged(Path file) {
            try {
            } catch (Exception e) {
                logger.warn(() -> "An error occurred while reloading file [" + file + "]"; e);

    static final class AttributeParser {


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