Hi Lee, There were a lot of improvements recently to copy time, if you have to run against master then things should speed up on your next refresh. But, TBH, it still won't be perfect as this isn't done in a streaming fashion. The source tablet servers sends one block, the destination writes it, then the source sends the next block. I've found that keeping tablet size in the low 10s of GBs is best for re-replication speed.
J-D On Sun, Sep 10, 2017 at 3:51 PM, Lee King <yuyunliu...@gmail.com> wrote: > I try to use kudu command line tools to balance data automatic.the way is > good, but when running I found sometime it exec so slowly,and found no > error output. one tablet about 300Gb costs 48 hours to migrate,it there any > way to speed up the process? >
