Dan Hecht created IMPALA-6818:
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Summary: Rethink data-stream sender/receiver startup sequencing
Key: IMPALA-6818
URL: https://issues.apache.org/jira/browse/IMPALA-6818
Project: IMPALA
Issue Type: Sub-task
Components: Distributed Exec
Reporter: Dan Hecht
IMPALA-1599 introduced parallel fragment startup, which is good for startup
latency. However, it meant that data-stream senders can start before receivers,
and there is a timeout to handle the case when the receiver never shows up:
{code:java}
Sender timed out waiting for receiver fragment instance{code}
We see this timeout fairly regularly. Let's rethink how this works to see if we
can make it robust but being careful to not sacrifice startup time too much.
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