Failed to recover from local shards – How to solve this Elasticsearch exception

Opster Team

August-23, Version: 6.8-8.9

Briefly, this error occurs when Elasticsearch is unable to recover data from local shards due to issues like disk errors, corruption, or insufficient disk space. To resolve this, you can try the following: 1) Check the disk for errors and fix them. 2) Ensure there’s enough disk space. 3) If corruption is suspected, restore the data from a backup. 4) If the issue persists, consider reindexing the data. Always ensure your data is backed up to prevent loss during these operations.

This guide will help you check for common problems that cause the log ” failed to recover from local shards ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: shard, shards, index.

Log Context

Log “failed to recover from local shards” class name is StoreRecovery.java. We extracted the following from Elasticsearch source code for those seeking an in-depth context :

 return true;
 });
 }));
 } catch (IOException e) {
 recoveryListener.onFailure(
 new IndexShardRecoveryException(indexShard.shardId(); "failed to recover from local shards"; e)
 );
 } catch (Exception e) {
 recoveryListener.onFailure(e);
 }
 }));

 

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