Csaba Ringhofer created IMPALA-15080:
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Summary: Add queuing to KrpcDataStreamSender
Key: IMPALA-15080
URL: https://issues.apache.org/jira/browse/IMPALA-15080
Project: IMPALA
Issue Type: Improvement
Components: Backend
Reporter: Csaba Ringhofer
Currently channels can have a single in-flight batch + another batch for
serialization of incoming rows. There is no way to hold ready-to-end batches
that are net yet passed to krpc. Adding some capacity for ready-to-send
batches would help to mitigate temporary slowness in some receivers by letting
keeping batches for that receiver in memory while others could progress.
wip implementation: https://gerrit.cloudera.org/#/c/21579/
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