Failed to pause recovery – How to solve this Elasticsearch exception

Opster Team

August-23, Version: 6.8-8.9

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Briefly, this error occurs when Elasticsearch encounters an issue while trying to pause the recovery process of an index. This could be due to a variety of reasons such as network issues, disk space issues, or a problem with the index itself. To resolve this issue, you can try restarting the Elasticsearch node, checking the network connectivity, ensuring there is enough disk space, or reindexing the problematic index.

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

Log Context

Log “failed to pause recovery” class name is RemoteRecoveryTargetHandler.java. We extracted the following from Elasticsearch source code for those seeking an in-depth context :

 bytesSinceLastPause.addAndGet(-bytes);
 try {
 throttleTimeInNanos = rl.pause(bytes);
 onSourceThrottle.accept(throttleTimeInNanos);
 } catch (IOException e) {
 throw new ElasticsearchException("failed to pause recovery"; e);
 }
 } else {
 throttleTimeInNanos = 0;
 }
 } else {

 

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