Hi Keith,

I don't think that we keep such references. 
But we do experience exceptions during the job execution that we catch and retry (timeouts/network issues from different data sources).
Can they affect RDD cleanup?

Thanks,
Alex 

On Sun, Jul 21, 2019 at 10:49 PM Keith Chapman <keithgchapman@gmail.com> wrote:
Hi Alex,

Shuffle files in spark are deleted when the object holding a reference to the shuffle file on disk goes out of scope (is garbage collected by the JVM).  Could it be the case that you are keeping these objects alive?



On Sun, Jul 21, 2019 at 12:19 AM Alex Landa <metaloink@gmail.com> wrote:
Thanks,
I looked into these options, the cleaner periodic interval is set to 30 min by default. 
The block option for shuffle - spark.cleaner.referenceTracking.blocking.shuffle - is set to false by default.
What are the implications of setting it to true? 
Will it make the driver slower? 

Thanks,
Alex

On Sun, Jul 21, 2019 at 9:06 AM Prathmesh Ranaut Gmail <prathmesh.ranaut@gmail.com> wrote:
This is the job of ContextCleaner. There are few a property that you can tweak to see if that helps: 
spark.cleaner.periodicGC.interval
spark.cleaner.referenceTracking
spark.cleaner.referenceTracking.blocking.shuffle

Regards
Prathmesh Ranaut
On Jul 21, 2019, at 11:31 AM, Alex Landa <metaloink@gmail.com> wrote:

Hi,

We are running a long running Spark application ( which executes lots of
quick jobs using our scheduler ) on Spark stand-alone cluster 2.4.0.
We see that old shuffle files ( a week old for example ) are not deleted
during the execution of the application, which leads to out of disk space
errors on the executor. 
If we re-deploy the application, the Spark cluster take care of the cleaning
and deletes the old shuffle data (since we have
/-Dspark.worker.cleanup.enabled=true/ in the worker config).
I don't want to re-deploy our app every week or two, but to be able to
configure spark to clean old shuffle data (as it should). 

How can I configure Spark to delete old shuffle data during the life time of
the application (not after)? 


Thanks,
Alex