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New Contributor
Posts: 1
Registered: ‎04-11-2017
Accepted Solution

Kudu increment update support

hi,

Dose Kudu support  increment update?

 

For example, we have a table with two field, browser and visit count :

borwser   visitCount

firfox        10

 

And then, we got a new visit from firfox, the table will be update to:

borwser   visitCount

firfox        11

 

we want to do this update by increment operation, ranther then read the visitCount, add one and write it back.

 

Thanks in advance.

Cloudera Employee J-D
Cloudera Employee
Posts: 43
Registered: ‎07-08-2013

Re: Kudu increment update support

Hi,

 

Kudu currently doesn't support atomic increments or any kind of operation that reads a value and makes a decision based on that value with the guarantee that it won't change.

 

Thx,

 

J-D

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