Closing – How to solve this OpenSearch error

Opster Team

Aug-23, Version: 1-2.9

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Briefly, this error occurs when OpenSearch is trying to close an index, a data stream, or a connection but encounters an issue. This could be due to a variety of reasons such as insufficient permissions, network issues, or the index/data stream/connection is already closed. To resolve this, you can check the OpenSearch logs for more detailed error messages. Ensure that the user has the necessary permissions, the network is stable, and the index/data stream/connection is not already closed. If the issue persists, consider restarting the OpenSearch service.

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

Log Context

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

            if (!lifecycle.moveToClosed()) {
        }"closing ...");
        List toClose = new ArrayList();
        StopWatch stopWatch = new StopWatch("node_close");
        toClose.add(() -> stopWatch.start("node_service"));
        toClose.add(() -> stopWatch.stop().start("http"));


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