Log Unknown response type ; expected NodeSnapshotStatus or FailedNodeException – How To Solve Related Issues

Log Unknown response type ; expected NodeSnapshotStatus or FailedNodeException – How To Solve Related Issues

Updated: Feb-20

Elasticsearch Version: 1.7-8.0

Background

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To troubleshoot log “Unknown response type ; expected NodeSnapshotStatus or FailedNodeException” it’s important to understand a few problems related to Elasticsearch concepts admin, cluster, node, response, snapshot. See bellow important tips and explanations on these concepts

Log Context

Log”unknown response type [{}]; expected NodeSnapshotStatus or FailedNodeException” classname is TransportNodesSnapshotsStatus.java
We extracted the following from Elasticsearch source code for those seeking an in-depth context :

             if (resp instanceof NodeSnapshotStatus) { // will also filter out null response for unallocated ones
                nodesList.add((NodeSnapshotStatus) resp);
            } else if (resp instanceof FailedNodeException) {
                failures.add((FailedNodeException) resp);
            } else {
                logger.warn("unknown response type [{}]; expected NodeSnapshotStatus or FailedNodeException"; resp);
            }
        }
        return new NodesSnapshotStatus(clusterName; nodesList.toArray(new NodeSnapshotStatus[nodesList.size()]);
                failures.toArray(new FailedNodeException[failures.size()]));
    }




Related issues to this log

We have gathered selected Q&A from the community and issues from Github, that can help fix related issues please review the following for further information :

 

   

 

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