第十五章 K - L 开头的术语
日志记录 (journaling)
系统
一种功能，系统管理员可以选择启用，导致 IRIS 在日志文件中记录所有或选定全局的更改。如果发生系统故障，可以将这些更改向前滚动。也就是说，在恢复期间，可以将整个事务重新应用到数据库。另请参见写入镜像日志记录 (Write Image Journaling)。
以 K 开头的术语
密钥分发中心 (KDC)
系统
Sorting, remove duplicate and count of Json file
My usecase is sorting and removing duplicates and getting count from a file that has json messages as a individual rows.
I am currently planning to use pandas for this purpose as its really fast. Below are the steps i am following
1) call a python function (called function) from IRIS classmethod(calling function)
2) the call python function will read the json file in a dataframe
3) perform sorting, dup removal, count in the dataframe
4) convert the dataframe into iris stream
5) return back the stream to iris calling function class method
When i try to write the stream into termial its coming as a %SYS.python object rather a iris stream object.
Below is what my questions are
1) why is the return a %Sys.python rather a iris stream object
2) is there a better way to implement sorting, dup removals n count of record, in a file within iris.
Thanks!
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