Scheduling next cluster info refresh in – 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 scheduling the next cluster information refresh. It’s not necessarily an error, but more of an informational message indicating that the system is working as expected. However, if you’re seeing this message too frequently, it could indicate that your cluster is under heavy load or struggling with performance issues. To resolve this, you could consider optimizing your queries, increasing your cluster resources, or adjusting the refresh interval settings.

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This guide will help you check for common problems that cause the log ” scheduling next cluster info refresh in [{}] ” to appear. To understand the issues related to this log, read the explanation below about the following OpenSearch concepts: refresh, cluster.

Log Context

Log “scheduling next cluster info refresh in [{}]” classname is
We extracted the following from OpenSearch source code for those seeking an in-depth context :


        public void onAfter() {
            if (this == refreshAndRescheduleRunnable.get()) {
                logger.trace("scheduling next cluster info refresh in [{}]"; updateFrequency);
                threadPool.scheduleUnlessShuttingDown(updateFrequency; REFRESH_EXECUTOR; this);


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