Hi, could it be related to data locality, i.e if you use HDFS with replication factor 3? You could check this by increasing the replication factor to 6 for the files you use and see if there is a change.
Br, Petter Den 17 aug. 2017 11:57 fm skrev "Alexander Shoshin" < [email protected]>: > Hi, team! > > > > I have an issue working with impala. Maybe you could help me? > > > > My data is stored in parquet files. I am running queries to the data on > Impala through JMeter. I have 6 Impala daemons and JMeter sends queries > randomly to each of them. > > The problem is that only 3 of 6 Impala daemons use all available memory. > Others 3 Impala daemons use 3-4 times less memory. > > > > These 3 daemons each time are different, but there are always 3 of them. > When I tried to disable 2 daemons I saw the same picture: 3 daemons used > all available memory and 1 daemon not. All Impala daemons have the same > mem_limit setting. > > > > Have you ever had such strange behavior? Why not all Impala daemons use > all available memory? > > > > Regards, > > Alexander Shoshin > > >
