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I have searched in the issues and found no similar issues.
Describe the bug
During the Write Stage retry phase, the MapOutputTrackerMaster clears the MapStatus corresponding to the shuffleId on the Driver side. However, when a large number of partitions are encountered, the MapStatus may not be completely cleared. Retry at the Stage, the task becomes less, resulting in data loss. At present, I encountered a 40000 Partition, resulting in data loss.
Below is a screenshot of my problem:
Affects Version(s)
0.10.0
Uniffle Server Log Output
No response
Uniffle Engine Log Output
No response
Uniffle Server Configurations
No response
Uniffle Engine Configurations
No response
Additional context
No response
Are you willing to submit PR?
Yes I am willing to submit a PR!
The text was updated successfully, but these errors were encountered:
yl09099
changed the title
[Bug] Incomplete clearing of Mapstatus in the Write Stage retry phase results in data loss.
[Bug] Long tail tasks in the Write Stage retry phase results in data loss.
Dec 19, 2024
Code of Conduct
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Describe the bug
During the Write Stage retry phase, the MapOutputTrackerMaster clears the MapStatus corresponding to the shuffleId on the Driver side. However, when a large number of partitions are encountered, the MapStatus may not be completely cleared. Retry at the Stage, the task becomes less, resulting in data loss. At present, I encountered a 40000 Partition, resulting in data loss.
Below is a screenshot of my problem:
Affects Version(s)
0.10.0
Uniffle Server Log Output
No response
Uniffle Engine Log Output
No response
Uniffle Server Configurations
No response
Uniffle Engine Configurations
No response
Additional context
No response
Are you willing to submit PR?
The text was updated successfully, but these errors were encountered: