Github user zsxwing commented on the issue:
https://github.com/apache/spark/pull/18177
@srowen Considering Spark keeps 1000 stages in UI, if each stage has 10000
tasks, the duplicated strings will be a lot. I observed this, about 150MB in a
heap dump. Of cause, it's not significantly large but still worth to eliminate
them. I agree that JVM string deduplication is better but it 's not enabled by
default.
---
If your project is set up for it, you can reply to this email and have your
reply appear on GitHub as well. If your project does not have this feature
enabled and wishes so, or if the feature is enabled but not working, please
contact infrastructure at [email protected] or file a JIRA ticket
with INFRA.
---
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
