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Type:
Bug
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Status: Resolved
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Priority:
Major
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Resolution: Fixed
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Affects Version/s: Impala 3.2.0
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Fix Version/s: None
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Component/s: Backend, Distributed Exec
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Labels:None
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Epic Color:ghx-label-6
Exchanges into blocking nodes (e.g. sort nodes during run formation) can block the whole execution if a single node blocks. Data stream senders should buffer a limited amount of data to allow more sort nodes to start sorting their data. Possible options would be a fixed amount of buffer size, or a size relative to the sort node run size.
- is duplicated by
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IMPALA-6692 When partition exchange is followed by sort each sort node becomes a synchronization point across the cluster
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- Resolved
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