[Plasma] Incorrect log message when evicting objects

[asfimport]

When Plasma evicts objects on running out of memory, it prints log messages of the form:

There is not enough space to create this object, so evicting x objects to free up y bytes. The number of bytes in use (before this eviction) is z.

However, the reported number of bytes in use (before this eviction) actually reports the number of bytes after the eviction. A straightforward fix is to simply replace z with (y+z).

Reporter: Anurag Khandelwal / @anuragkh
Assignee: Anurag Khandelwal / @anuragkh

PRs and other links:

• GitHub Pull Request #3433

_{Note: This issue was originally created as ARROW-4295. Please see the migration documentation for further details.}

[asfimport]

Anurag Khandelwal / @anuragkh:
cc @pcmoritz

[asfimport]

Philipp Moritz / @pcmoritz:
Issue resolved by pull request 3433
#3433