Hi We have written a MapReduce application based on Hadoop 2.4 which keeps reading data from HDFS(Pseudo-distributed mode in one node). And we found the CPU system time and user time of the application keeps increasing when it is running. If we changed the application to read data from local disk without changing any other business logic, the CPU utilization kept stable. So we have conclusion that the CPU utilization is related to HDFS. We want to know whether this issue is really related to HDFS and is there any solution to fix it?
[cid:image001.png@01CFC5EE.E02C6D50] Thanks a lot! BR/Shiyuan
