We want to extract data from mysql, and calculate in sparksql.
The sql explain like below.
== Parsed Logical Plan ==
> 'Sort ['revenue DESC NULLS LAST], true
> +- 'Aggregate ['n_name], ['n_name, 'SUM(('l_extendedprice * (1 -
> 'l_discount))) AS revenue#329]
>+- 'Filter ('c_custkey =
Hi,
When I issue a "free -m" command in a host, I see a lot of memory used
for cache in OS, however Spark Streaming is not able to request that
memory for its usage, and it fail the execution due to not been able to
launch executors.
What I understand of the OS memory cache (the one in
Applying this fix https://github.com/apache/spark/pull/19663
Or
Using --files or --jars /local/path/to/hive-site.xml may works
Thanks,
Kent
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To
Hi Tushar,
It seems Spark is not able to access the metastore. It may be because you
are using derby metastases which is maintained locally. Please check all
your configurations and that Spark has access to the hive-site.xml file
with the metastore uri.
Thanks,
Marco
On Tue, 10 Apr 2018, 08:20
Hi Everyone,
I was accessing Hive Tables in Spark SQL using Scala submitted by
spark-submit command.
When I ran in cluster mode then got error like : Table not found
But the same is working while submitted as client mode.
Please help me to understand why?
Distribution : Hortonworks
Thanks in