Timed out waiting for all nodes to process published state timeout pending nodes – How to solve this OpenSearch error

Opster Team

Aug-23, Version: 1-1.1

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Briefly, this error occurs when OpenSearch cluster nodes fail to process a published state within a specified timeout period. This could be due to network issues, overloaded nodes, or slow hardware. To resolve this, you can increase the timeout setting, ensure your network is stable and efficient, or upgrade your hardware to improve processing speed. Additionally, consider balancing the load across nodes or reducing the cluster state size if it’s too large.

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This guide will help you check for common problems that cause the log ” timed out waiting for all nodes to process published state [{}] (timeout [{}]; pending nodes: {}) ” to appear. To understand the issues related to this log, read the explanation below about the following OpenSearch concepts: discovery.

Log Context

Log “timed out waiting for all nodes to process published state [{}] (timeout [{}]; pending nodes: {})” classname is PublishClusterStateAction.java.
We extracted the following from OpenSearch source code for those seeking an in-depth context :

            if (sendingController.getPublishingTimedOut()) {
                DiscoveryNode[] pendingNodes = publishResponseHandler.pendingNodes();
                // everyone may have just responded
                if (pendingNodes.length > 0) {
                    logger.warn("timed out waiting for all nodes to process published state [{}] (timeout [{}]; pending nodes: {})";
                        clusterState.version(); publishTimeout; pendingNodes);
            // The failure is logged under debug when a sending failed. we now log a summary.
            Set failedNodes = publishResponseHandler.getFailedNodes();


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