How To Solve Issues Related to Log – Ignoring dangled index on node

How To Solve Issues Related to Log – Ignoring dangled index on node

Updated: Jan-20

Elasticsearch Version: 1.7-8.0

Background

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To troubleshoot log “Ignoring dangled index on node” it’s important to understand a few problems related to Elasticsearch concepts dangled, index, indices, node. See bellow important tips and explanations on these concepts

Log Context

Log”Ignoring dangled index [{}] on node [{}]” classname is LocalAllocateDangledIndices.java
We extracted the following from Elasticsearch source code for those seeking an in-depth context :

                         .minimumIndexCompatibilityVersion();
                    boolean importNeeded = false;
                    StringBuilder sb = new StringBuilder();
                    for (IndexMetaData indexMetaData : request.indices) {
                        if (indexMetaData.getCreationVersion().before(minIndexCompatibilityVersion)) {
                            logger.warn("ignoring dangled index [{}] on node [{}]" +
                                " since it's created version [{}] is not supported by at least one node in the cluster minVersion [{}]";
                                indexMetaData.getIndex(); request.fromNode; indexMetaData.getCreationVersion();
                                minIndexCompatibilityVersion);
                            continue;
                        }




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 :

1 How To Resolve Dangling Indices Err  

Github Issue Number 27073  

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