When retry happens, use priority map to decide
which error to return. Consider network errors
less desirable than business logic errors.
Signed-off-by: Alex Vanin <a.vanin@yadro.com>
1. Try its best by looking for nodes during 'GetNodeByPath'
2. Retry on 'tree not found' and other not found errors
Signed-off-by: Alex Vanin <a.vanin@yadro.com>