Failed to execute cluster state update source – How to solve this Elasticsearch exception

Opster Team

August-23, Version: 7.6-8

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Briefly, this error occurs when Elasticsearch fails to update the cluster state due to issues like insufficient permissions, network connectivity problems, or a malfunctioning cluster. To resolve this, you can check if the user has the necessary permissions to perform the update. If permissions are not the issue, verify the network connectivity between the nodes. Lastly, check the health of your cluster and ensure all nodes are functioning properly. If a node is down, bring it back up and retry the operation.

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This guide will help you check for common problems that cause the log ” Failed to execute cluster state update [” + source + “] ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: cluster, repositories, source, blobstore.

Log Context

Log “Failed to execute cluster state update [” + source + “]” class name is We extracted the following from Elasticsearch source code for those seeking an in-depth context :

 }  @Override
 public void onFailure(String source; Exception e) {
 new RepositoryException(; "Failed to execute cluster state update [" + source + "]"; e)
 }  @Override
 public void clusterStateProcessed(String source; ClusterState oldState; ClusterState newState) {


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