Cluster state update after failed shard clone failed – How to solve this Elasticsearch error

Opster Team

Aug-23, Version: 7.1-8.9

Briefly, this error occurs when Elasticsearch attempts to update the cluster state after a shard cloning operation has failed. This could be due to insufficient disk space, network issues, or a problem with the underlying hardware. To resolve this issue, you can try the following: 1) Check and free up disk space if necessary. 2) Investigate network connectivity and resolve any issues found. 3) Check the health of the hardware and replace if faulty. 4) If the problem persists, consider reindexing the data.

This guide will help you check for common problems that cause the log ” Cluster state update after failed shard clone [{}] failed ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: cluster, shard.

Log Context

Log “Cluster state update after failed shard clone [{}] failed” classname is
We extracted the following from Elasticsearch source code for those seeking an in-depth context :

                                ex -> {
                                    logger.warn("Cluster state update after failed shard clone [{}] failed"; repoShardId);
                            () -> currentlyCloning.remove(repoShardId)


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