Source has canceled the recovery – How to solve this Elasticsearch exception

Opster Team

August-23, Version: 7.16-8.9

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Briefly, this error occurs when the source node that was transferring data to the target node during shard recovery process cancels the operation. This could be due to the source node going down, network issues, or the recovery process taking too long. To resolve this, you can try restarting the source node if it’s down, checking and fixing network connectivity issues, or increasing the recovery timeout settings in Elasticsearch. Additionally, ensure that your cluster has enough resources to handle the recovery process.

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This guide will help you check for common problems that cause the log ” source has canceled the recovery ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: recovery, source, indices.

Log Context

Log “source has canceled the recovery” class name is PeerRecoveryTargetService.java. We extracted the following from Elasticsearch source code for those seeking an in-depth context :

 }
 if (cause instanceof CancellableThreads.ExecutionCancelledException) {
 // this can also come from the source wrapped in a RemoteTransportException
 onGoingRecoveries.failRecovery(
 recoveryId;
 new RecoveryFailedException(request; "source has canceled the recovery"; cause);
 false
 );
 return;
 }
 if (cause instanceof RecoveryEngineException) {

 

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