Hi Gopal,
Thanks for your reply.
>For the Hadoop version, we will upgrade it to 2.8 later.
>In our test, we found the shuffle stage of LLAP is very slow. Whether need to
>configure some related shuffle value or not? And we get the following log
>from the LLAP daemon in shuffle stage:
Hi,
> With these configurations, the cpu utilization of llap is very low.
Low CPU usage has been observed with LLAP due to RPC starvation.
I'm going to assume that the build you're testing is a raw Hadoop 2.7.3 with no
additional patches?
Hadoop-RPC is single-threaded & has a single mutex
>exeception : java.lang.incompatible class change error
Can you please send the entire error output?
>How to make a connection between HPL/SQL and impala
Connection to Impala is not pre-defined yet, so you have to create a new
connection, see http://hplsql.org/connections
Thanks,
Dmitry
On
Hello,
As the table explains, it really depends on the number of concurrent
connections you will have on your HiveServer2,
but I confirm that you can experience OOM failures on either the
HiveServer2 or the Metastore if too many concurrent
queries are run simultaneously.
For larger clusters, as
