[FLINK-15166] Shuffle data compression wrongly decrease the buffer reference count.

• Type: Bug
• Status: Closed
• Priority: Blocker
• Resolution: Fixed
• Affects Version/s: 1.10.0
• Fix Version/s: 1.10.0
• Component/s: Runtime / Network
• Labels: pull-request-available
• Assignee: Yingjie Cao
• Reporter: Yingjie Cao
• Created: 10/Dec/19 04:11
• Updated: 10/Dec/19 10:32
• Resolved: 10/Dec/19 10:10

Description

FLINK-15140 report two relevant problems which are both triggered by broadcast partitioner, to make it more clear, I create this Jira to addresses the problems separately.

 

For blocking shuffle compression, we recycle the compressed intermediate buffer each time after we write data out, however when the data is not compressed, the return buffer is the original buffer and should not be recycled, but we wrongly recycled it.

Issue Links

• links to: GitHub Pull Request #10506