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Briefly, this error occurs when OpenSearch fails to delete temporary files that were created during the recovery process of a node or shard. This could be due to insufficient permissions, disk space issues, or a problem with the underlying file system. To resolve this issue, you can try the following: 1) Check and adjust the permissions of the OpenSearch directories; 2) Free up disk space or add more if necessary; 3) Check the integrity of the file system and fix any issues found.
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This guide will help you check for common problems that cause the log ” failed to clean after recovery ” to appear. To understand the issues related to this log, read the explanation below about the following OpenSearch concepts: recovery, indices.
Log Context
Log “failed to clean after recovery” class name is RecoveryTarget.java. We extracted the following from OpenSearch source code for those seeking an in-depth context :
}
} catch (Exception e) {
logger.debug("Failed to clean lucene index"; e);
ex.addSuppressed(e);
}
RecoveryFailedException rfe = new RecoveryFailedException(state(); "failed to clean after recovery"; ex);
fail(rfe; true);
throw rfe;
} catch (Exception ex) {
RecoveryFailedException rfe = new RecoveryFailedException(state(); "failed to clean after recovery"; ex);
fail(rfe; true);
