the data source is kafka, and a field is a timestamp. We want to calculate the difference between the timestamps of the two pieces of data, and then add a new field to store this value and send it out. I checked. Do you want to reducebykeyandwindow? Wit...
execute go test command to report an error. What does it mean? debug call has arguments but no formatting directives in addition, what does the xxx stand for after go test-run xxx mean? check it out and see no clear statement ...
I try to run the main method directly in java to submit the job to yarn for execution. But get the following error message: 2018-08-26 10:25:37,544 INFO [main] mapreduce.Job (Job.java:monitorAndPrintJob(1375)) - Job job_1535213323614_0010 failed with ...
the code is here, line 64 https: github.com ant-design. I don t quite understand why. I need to add {list} after list, and I haven t seen a similar syntax in es6 . is it any good for them to write like this? how to understand it? thank you ...
Windows Registry Editor Version 5.00 [HKEY_CLASSES_ROOT .VBS] @="VBSFile" [HKEY_CLASSES_ROOT .VBS PersistentHandler] @="{5e941d80-bf96-11cd-b579-08002b30bfeb}" the above code is run directly in the .reg file, but h...
originally wrote JAVA, but the sophomore recently encountered asynchronous programming in the new nodejs, is a bit difficult to understand. now I am writing a crawler originally done in JAVA, get a url list, submit the request crawl web page with for...
, resulting in an error: The client-side rendered virtual DOM tree is not matching server-rendered content . who has a solution (excluding the one that saves the state using cookie), that is, vue ssr uses localStorage to save the login state? ...
brief: because Mini Program s project uses wepy s framework, but you don t quite understand that the role of this interceptor is to integrate all the interfaces? Or? ...