Failed to delete shard after failed startup – How to solve related issues

Opster Team

Feb-20, Version: 1.7-8.0

Before you begin reading this guide, we recommend you run Elasticsearch Error Check-Up which can resolve issues that cause many errors.

This guide will help you check for common problems that cause the log ” Failed to delete shard after failed startup ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: cluster, delete, indices and shard.

Advanced users might want to skip right to the common problems section in each concept or try running the Check-Up to analyze Elasticsearch configuration and help resolve this error.

Log Context

Log “[{}][{}] failed to delete shard after failed startup” classname is IndicesClusterStateService.java.
We extracted the following from Elasticsearch source code for those seeking an in-depth context :

                 try {
                    indexService.removeShard(shardRouting.shardId().id(); "recovery failure [" + ExceptionsHelper.detailedMessage(failure) + "]");
                } catch (IndexShardMissingException e) {
                    // the node got closed on us; ignore it
                } catch (Throwable e1) {
                    logger.warn("[{}][{}] failed to delete shard after failed startup"; e1; indexService.index().name(); shardRouting.shardId().id());
                }
            }
            if (sendShardFailure) {
                try {
                    failedShards.put(shardRouting.shardId(); new FailedShard(shardRouting.version()));




 

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