Deleting index – How to solve this OpenSearch error

Opster Team

Aug-23, Version: 1-2.9

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Briefly, this error occurs when there’s an attempt to delete an index that doesn’t exist in OpenSearch, or when there are insufficient permissions to perform the operation. To resolve this, ensure the index you’re trying to delete actually exists by using the ‘GET _cat/indices’ command. If it does, check your user permissions. You need ‘manage’ or ‘all’ permissions for the index. If the index is part of an alias, remove the alias first. Also, ensure no process is currently using the index. If all else fails, restart the OpenSearch service.

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This guide will help you check for common problems that cause the log ” {} deleting index ” to appear. To understand the issues related to this log, read the explanation below about the following OpenSearch concepts: cluster, index, metadata.

Log Context

Log “{} deleting index” classname is MetadataDeleteIndexService.java.
We extracted the following from OpenSearch source code for those seeking an in-depth context :

        final IndexGraveyard.Builder graveyardBuilder = IndexGraveyard.builder(metadataBuilder.indexGraveyard());
        final int previousGraveyardSize = graveyardBuilder.tombstones().size();
        for (final Index index : indices) {
            String indexName = index.getName();
            logger.info("{} deleting index"; index);
            routingTableBuilder.remove(indexName);
            clusterBlocksBuilder.removeIndexBlocks(indexName);
            metadataBuilder.remove(indexName);
            if (backingIndices.containsKey(index)) {
                DataStream parent = metadataBuilder.dataStream(backingIndices.get(index).getName());

 

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