refactor(sync): adjust log buf size

ci: optimize Jenkins log

test(stream): partition by tbname

test：update test case 

enh: refactor show variables

fix: handle rpc retry except

test: add test time count print

refactor(stream): seperate stream scheduling and persistence

test: redistribute vgroup

feat: alter local command

refactor(sync): add trace log

feat: sql command 'show consumers' and 'show subscriptions'

fix(wal): set first version to -1 if all log rollbacked