Removing node – How to solve this Elasticsearch error

Opster Team

Aug-23, Version: 6.8-6.8

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Briefly, this error occurs when a node in the Elasticsearch cluster is removed or disconnected. This could be due to network issues, hardware failure, or the node being deliberately taken down for maintenance or updates. To resolve this issue, you can check the network connectivity, ensure the hardware is functioning properly, or if the node was taken down intentionally, ensure it is properly reconnected and synced with the cluster after maintenance. If the node was removed due to a failure, you may need to add a new node to the cluster.

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This guide will help you check for common problems that cause the log ” [{}] removing node [{}] ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: node, tribe.

Log Context

Log “[{}] removing node [{}]” classname is TribeService.java.
We extracted the following from Elasticsearch source code for those seeking an in-depth context :

            for (DiscoveryNode discoNode : currentState.nodes()) {
                String markedTribeName = discoNode.getAttributes().get(TRIBE_NAME_SETTING.getKey());
                if (markedTribeName != null && markedTribeName.equals(tribeName)) {
                    if (tribeState.nodes().get(discoNode.getId()) == null) {
                        clusterStateChanged = true;
                        logger.info("[{}] removing node [{}]"; tribeName; discoNode);
                        nodes.remove(discoNode.getId());
                    }
                }
            }
            // go over tribe nodes; and see if they need to be added

 

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