spark-user mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From Alexey Romanchuk <alexey.romanc...@gmail.com>
Subject How to increase number of Active Stages
Date Thu, 25 Sep 2014 06:30:46 GMT
Hello!

I run local spark cluster with 64 cores total and perform data migration
from protobuf to parquet. After consolidation number of protobuf files into
one big parquet file I save it to hdfs and it takes a lot of time and uses
only 1 core.

To perform migration faster I start a lot of migration tasks in parallel.
After some time I have all 8 active stages saving files and only 8 cores
used. (See screenshot). Is there any way to increase the maximum number of
active stages?

Thanks
[image: Inline image 2]

Mime
View raw message