Error closing serverChannel for profile – How to solve related issues

Opster Team

Feb-20, Version: 1.7-8.0

Before you begin reading this guide, we recommend you run Elasticsearch Error Check-Up which analyzes 2 JSON files to detect many errors.

To easily locate the root cause and resolve this issue try AutoOps for Elasticsearch & OpenSearch. It diagnoses problems by analyzing hundreds of metrics collected by a lightweight agent and offers guidance for resolving them.

This guide will help you check for common problems that cause the log ” Error closing serverChannel for profile ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: master.

Log Context

Log “Error closing serverChannel for profile [{}]” classname is
We extracted the following from Elasticsearch source code for those seeking an in-depth context :

                 for (Map.Entry> entry : serverChannels.entrySet()) {
                    String profile = entry.getKey();
                    List channels = entry.getValue();
                    ActionListener closeFailLogger = ActionListener.wrap(c -> {
                        e -> logger.warn(() -> new ParameterizedMessage("Error closing serverChannel for profile [{}]"; profile); e));
                    channels.forEach(c -> c.addCloseListener(closeFailLogger));
                    CloseableChannel.closeChannels(channels; true);


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