session: do not print the annoying 'no such host' error log when authorization fails (#13989)
session: do not print the annoying 'no such host' error log when authorization fails (#13989)



Cofyc/tidb,pingcap/tidb,kyle-wang/tidb,c4pt0r/tidb,c4pt0r/tidb,EvilMcJerkface/tidb,ngaut/tidb,ngaut/tidb,c4pt0r/tidb,c4pt0r/tidb,kyle-wang/tidb,ming-relax/tidb,Cofyc/tidb,kyle-wang/tidb,XuHuaiyu/tidb,XuHuaiyu/tidb,coocood/tidb,coocood/tidb,c4pt0r/tidb,pingcap/tidb,pingcap/tidb,kyle-wang/tidb,pingcap/tidb,kyle-wang/tidb,ngaut/tidb,pingcap/tidb,ming-relax/tidb,ngaut/tidb,EvilMcJerkface/tidb,kyle-wang/tidb,ngaut/tidb,c4pt0r/tidb,ngaut/tidb,pingcap/tidb