Briefly, this error occurs when Elasticsearch fails to restore a snapshot from a repository due to reasons like insufficient disk space, network issues, or corrupted snapshot files. To resolve this, ensure there’s enough disk space and network connectivity. Check the snapshot’s integrity in the repository. If corrupted, consider creating a new snapshot. Also, verify the snapshot and repository configurations are correct. If the issue persists, check Elasticsearch logs for more specific error details.
This guide will help you check for common problems that cause the log ” [” + request.repository() + “:” + request.snapshot() + “] failed to restore snapshot ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: request.
Log Context
Log “[” + request.repository() + “:” + request.snapshot() + “] failed to restore snapshot” classname is RestoreService.java.
We extracted the following from Elasticsearch source code for those seeking an in-depth context :
})
)
)
);
} catch (Exception e) {
logger.warn(() -> "[" + request.repository() + ":" + request.snapshot() + "] failed to restore snapshot"; e);
listener.onFailure(e);
}
}
/**
