Hi,
This issue is a sub-task of IoTDB-187 [1], which enables users to choose whether files are storied in local file system or HDFS. In this sub-task, I intend to use an encapsulated "File" to replace existed Java File in our project. Currently in our design, all files could be written on HDFS. HDFS supports truncating files, and since renaming is not very frequent, maybe we do not need to worry about performance. If anyone has any other ideas, please discuss with me. [1] https://issues.apache.org/jira/browse/IOTDB-187 ------------------ Zesong Sun School of Software, Tsinghua University ?????? ???????? ???????? ------------------ ???????? ------------------ ??????: "Xiangdong Huang"<[email protected]>; ????????: 2019??8??31??(??????) ????10:50 ??????: "dev"<[email protected]>; ????: [IoTDB-189] question about the feature of compatibility of HDFS Hi, This issue only has a title.. without any description... I think it is for letting IoTDB write TsFiles on HDFS directly. My question is, is only TsFile written on HDFS? or all files (e.g., wal, system data file)? Besides, if all files are on HDFS, do we need to avoid using File name as a mark or a lock (i.e., create a file and then rename it) for performance consideration? (I am on my trip and then I realize clearly that current info on issue is not enough for guys who are on the internet) Best, ----------------------------------- Xiangdong Huang School of Software, Tsinghua University ?????? ???????? ????????
