Dan Hecht created IMPALA-6818: --------------------------------- 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. -- This message was sent by Atlassian JIRA (v7.6.3#76005)