Failed to serialize diff of cluster-state before publishing it to node – 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 can resolve issues that cause many errors.

This guide will help you check for common problems that cause the log ” Failed to serialize diff of cluster-state before publishing it to node ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: cluster, discovery and node.

Advanced users might want to skip right to the common problems section in each concept or try running the Check-Up to analyze Elasticsearch configuration and help resolve this error.

Log Context

Log “failed to serialize diff of cluster_state before publishing it to node {}” classname is PublishClusterStateAction.java.
We extracted the following from Elasticsearch source code for those seeking an in-depth context :

         if (bytes == null) {
            try {
                bytes = serializeDiffClusterState(diff; node.version());
                serializedDiffs.put(node.version(); bytes);
            } catch (Throwable e) {
                logger.warn("failed to serialize diff of cluster_state before publishing it to node {}"; e; node);
                publishResponseHandler.onFailure(node; e);
                return;
            }
        }
        publishClusterStateToNode(clusterState; bytes; node; timedOutWaitingForNodes; publishTimeout; publishResponseHandler; true);




 

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