Lars Volker created IMPALA-8302:
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Summary: Data stream senders should buffer limited amount of data
when receivers block
Key: IMPALA-8302
URL: https://issues.apache.org/jira/browse/IMPALA-8302
Project: IMPALA
Issue Type: Bug
Components: Backend, Distributed Exec
Affects Versions: Impala 3.2.0
Reporter: Lars Volker
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.
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