[IMPALA-10220] Min value of RpcNetworkTime can be negative

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: Impala 3.4.0
• Fix Version/s: Impala 4.0.0
• Component/s: Distributed Exec
• Epic Color: ghx-label-8
• Assignee: Riza Suminto
• Reporter: Riza Suminto
• Created: 05/Oct/20 23:35
• Updated: 19/Oct/20 20:23
• Resolved: 19/Oct/20 20:23

Description

There is a bug in function KrpcDataStreamSender::Channel::EndDataStreamCompleteCb(), particularly in this line:

https://github.com/apache/impala/blob/d453d52/be/src/runtime/krpc-data-stream-sender.cc#L635

network_time_ns should be computed using eos_rsp_.receiver_latency_ns() instead of resp_.receiver_latency_ns().

Issue Links

• relates to: IMPALA-9954 RpcRecvrTime can be negative