Error while closing recovery output – How to solve this OpenSearch error

Opster Team

Aug-23, Version: 1-2.9

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Briefly, this error occurs when OpenSearch encounters an issue while trying to close the recovery output. This could be due to a variety of reasons such as disk space issues, network connectivity problems, or file corruption. To resolve this issue, you can try freeing up disk space, checking your network connection, or repairing any corrupted files. Additionally, you may want to check your OpenSearch logs for more detailed information about the error. If the problem persists, consider restarting your OpenSearch cluster or reindexing your data.

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This guide will help you check for common problems that cause the log ” error while closing recovery output [{}] ” to appear. To understand the issues related to this log, read the explanation below about the following OpenSearch concepts: recovery, indices.

Log Context

Log “error while closing recovery output [{}]” classname is
We extracted the following from OpenSearch source code for those seeking an in-depth context :

            Map.Entry entry =;
            logger.trace("closing IndexOutput file [{}]"; entry.getValue());
            try {
            } catch (Exception e) {
                logger.debug(() -> new ParameterizedMessage("error while closing recovery output [{}]"; entry.getValue()); e);
        if (Strings.hasText(tempFilePrefix)) {
            // trash temporary files


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