Review Request 55595: SENTRY-1428: Only leader should follow HMS updates

--- This is an automatically generated e-mail. To reply, visit: https://reviews.apache.org/r/55595/ --- Review request for sentry, Hao Hao, kalyan kumar kalvagadda, Vamsee Yarlagadda,

Review Request 55594: SENTRY-1594 TransactionBlock should become generic

--- This is an automatically generated e-mail. To reply, visit: https://reviews.apache.org/r/55594/ --- Review request for sentry, Colin Ma, Misha Dmitriev, Hao Hao, kalyan kumar