Received a cluster state uuid v from a different master than the current one – How to solve this Elasticsearch error

Opster Team

Aug-23, Version: 6.8-7.15

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Briefly, this error occurs when there is a mismatch in the cluster state UUID between the current master node and another node in the Elasticsearch cluster. This could be due to network issues, node failures, or configuration errors. To resolve this issue, you can try the following: 1) Check the network connectivity between the nodes. 2) Verify the cluster health and ensure all nodes are properly connected. 3) Review the Elasticsearch configuration for any inconsistencies. 4) If necessary, restart the nodes or the entire cluster to reset the cluster state.

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This guide will help you check for common problems that cause the log ” received a cluster state (uuid[{}]/v[{}]) from a different master than the current one; ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: cluster, discovery, master.

Log Context

Log “received a cluster state (uuid[{}]/v[{}]) from a different master than the current one;” classname is
We extracted the following from Elasticsearch source code for those seeking an in-depth context :

            final DiscoveryNode pendingMasterNode = pendingState.nodes().getMasterNode();
            if (Objects.equals(currentMaster; pendingMasterNode) == false) {
                if (pendingContext.committed()) {
                    // this is a committed state ; warn
                    logger.warn("received a cluster state (uuid[{}]/v[{}]) from a different master than the current one;"
                        + " rejecting (received {}; current {})";
                            pendingState.stateUUID(); pendingState.version(); pendingMasterNode; currentMaster);
                            new IllegalStateException("cluster state from a different master than the current one;" +
                                " rejecting (received " + pendingMasterNode + "; current " + currentMaster + ")"));


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