David Rorke created KUDU-3248:
---------------------------------
Summary: Expose replica selection option that provides better
affinity for remote scans
Key: KUDU-3248
URL: https://issues.apache.org/jira/browse/KUDU-3248
Project: Kudu
Issue Type: Improvement
Components: client
Reporter: David Rorke
Kudu clients like Impala that use the CLOSEST_REPLICA selection option can
suffer from bad tserver buffer cache warmup/locality during remote scans due to
lack of tserver affinity as described in IMPALA-10481.
The Kudu client should expose a replica selection option that provides better
affinity when doing remote scans. The comments in IMPALA-10481 suggest a new
LOCAL_OR_LEADER option that would select a local replica if one exists,
otherwise fallback to the leader.
--
This message was sent by Atlassian Jira
(v8.3.4#803005)
