Closed – How to solve this OpenSearch error

Opster Team

Aug-23, Version: 1-2.9

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Briefly, this error occurs when an OpenSearch index is closed. When an index is closed, it consumes less system resources and cannot be read or written to. This can happen if you or an automated process has closed the index. To resolve this issue, you can reopen the index using the OpenSearch ‘open index’ API. Alternatively, you may want to check your automated processes or scripts to ensure they are not closing indices unintentionally. Lastly, ensure you have sufficient system resources to handle all open indices.

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

Log Context

Log “closed” classname is
We extracted the following from OpenSearch source code for those seeking an in-depth context :

        if (logger.isTraceEnabled()) {
            toClose.add(() -> logger.trace("Close times for each service:\n{}"; stopWatch.prettyPrint()));

     * Wait for this node to be effectively closed.


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