1. PartialKeyGrouping is preferable is you have a data skew problem. But it is not a drop in replacement. You often need an extra layer of bolts to come up with the same answer in the end.2. Yes it can. We are working on a better option that takes network distance and load into account when deciding where to send a message, but that is still a work in progress.
- Bobby On Tuesday, August 8, 2017, 8:24:10 PM CDT, ? ?? <[email protected]> wrote: #yiv6558257798 body {line-height:1.5;}#yiv6558257798 body {font-size:10.5pt;font-family:'Microsoft YaHei UI';color:rgb(0, 0, 0);line-height:1.5;}Hi, - Is Partial Key grouping always preferable than Fields grouping? - Will Local or shuffle grouping cause load imbalance between tasks? [email protected]
