HIVE-3746 modified IDL to handle nulls in more performant manner. (hiveserver1 does not handle nulls)
Thanks. 2013/11/6 B C <[email protected]> > hi, > > We are building ms sql cube by linkedserver connecting to hiveserver with > Cloudera's ODBC driver. > > There are two test results: > 1. hiveserver1 running on 2CPUs, 8G mem, took about 8 hours > 2. hiveserver2 running on 4CPUs, 16 mem, took about 13 hours and 27min > (almost failed on machine with 2CPUs, 8G mem) > > Although on both cases, almost all CPUs are busy when building cube. > But I cannot understand why hiveserver2 is much slower than hiveserver1, > because from doc, hs2 support concurrency, it should be faster than hs1, > isn't it? > > Thanks. > > CDH4.3 on CentOS6. > >
