neeraj kumar <neeru.cse@xxxxxxxxx> writes: > We got more information about this issue. There is one backend process > still present into beentry which has changecount as odd value. However this > process is long gone/terminated. It means when this process was > killed/terminated its entry was not cleaned from beentry list. There seems > to be some shutdown hook which cleans beentry if process is > killed/terminated that somehow was not kicked off ? No, that's the point: there isn't any such cleanup code. The design idea here was that we'd only have short straight-line code segments with no possible way to throw an error while changecount is odd. Then somebody abused the heck out of that ... regards, tom lane