ddl: add ddl_reorg_batch_size variable to control ddl worker batch ze and enlarge default batch size. (#8365)#8614

Merged

winkyao merged 1 commit intopingcap:release-2.1from crazycs520:batch-cnt-2.1

Dec 11, 2018

+74-10

Commits on Dec 7, 2018

ddl: add ddl_reorg_batch_size variable to control ddl worker batch size and enlarge default batch size. (pingcap#8365 )
crazycs520
committed