return more accurate 500 instead of 503
return more accurate 500 instead of 503

caskdata/coopr,cdapio/coopr,caskdata/coopr,quantiply-fork/coopr,quantiply-fork/coopr,quantiply-fork/coopr,caskdata/coopr,cdapio/coopr,caskdata/coopr,cdapio/coopr,cdapio/coopr,quantiply-fork/coopr,cdapio/coopr,caskdata/coopr