Padma Penumarthy created DRILL-5287:
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Summary: Provide option to skip updates of ephemeral state changes
in Zookeeper
Key: DRILL-5287
URL: https://issues.apache.org/jira/browse/DRILL-5287
Project: Apache Drill
Issue Type: Bug
Affects Versions: 1.9.0
Reporter: Padma Penumarthy
Assignee: Padma Penumarthy
Fix For: 1.10
We put transient profiles in zookeeper and update state as query progresses and
changes states. It is observed that this adds latency of ~45msec for each
update in the query execution path. This gets even worse when high number of
concurrent queries are in progress. For concurrency=100, the average query
response time even for short queries is 8 sec vs 0.2 sec with these updates
disabled. For short lived queries in a high-throughput scenario, it is of no
value to update state changes in zookeeper. We need an option to disable these
updates for short running operational queries.
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