Failed to clear decommission attribute – How to solve this OpenSearch error

Opster Team

Aug-23, Version: 2.4-2.4

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Briefly, this error occurs when OpenSearch fails to remove the decommission attribute from a node or index. This could be due to insufficient permissions, network issues, or a problem with the OpenSearch cluster. To resolve this issue, you can try the following: 1) Check and adjust the user permissions if necessary, 2) Verify the network connectivity between the nodes, 3) Check the health of the OpenSearch cluster and fix any identified issues, and 4) If the problem persists, consider restarting the affected node or the entire cluster.

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

Log Context

Log “Failed to clear decommission attribute. [{}]” classname is
We extracted the following from OpenSearch source code for those seeking an in-depth context :

                return ClusterState.builder(currentState).metadata(mdBuilder).build();

            public void onFailure(String source; Exception e) {
                logger.error(() -> new ParameterizedMessage("Failed to clear decommission attribute. [{}]"; source); e);

            public void clusterStateProcessed(String source; ClusterState oldState; ClusterState newState) {


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