Avoid calling values() on ExternalSpillableMap
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priority:critical
type:devtask
- Dominant language
- Java
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Description
We should avoid calling values() and holding large collection in memory for ExternalSpillableMap. This defeats the purpose of disk based map structure. When iteration through the elements is required, we should implement iterators().
## JIRA info
- Link: https://issues.apache.org/jira/browse/HUDI-8870
- Type: Task
- Fix version(s):
- 1.1.0
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