What's New in Apache Hive
Learn about the new features of Hive in Cloudera Runtime 7.3.1, its service packs and cumulative hotfixes.
Cloudera Runtime 7.3.1.500 SP3:
- Common table expression detection and rewrites using cost-based optimizer
- Hive's existing shared work optimizer detects and optimizes common table expressions
heuristically, but it lacks cost-based analysis and has limited customization. New APIs
and configuration options have been introduced to support common table expression
optimizations at the cost-based optimizer level. This feature is experimental and
disabled by default.
Apache Jira: HIVE-28259
- Upgraded Avro to version 1.11.3
- OpenTelemetry integration for Hive
-
Hive now integrates with OpenTelemetry (OTel) to enhance query by collecting and exporting telemetry data, including infrastructure and workload metrics. An OTel agent in Cloudera helps monitor query performance and troubleshoot failures.
Apache Jira: HIVE-28504
For more information, see OpenTelemetry support for Hive
Cloudera Runtime 7.3.1.400 SP2:
There are no new features in this release.
Cloudera Runtime 7.3.1.300 SP1 CHF 1:
There are no new features in this release.
Cloudera Runtime 7.3.1.200 SP1:
There are no new features in this release.
Cloudera Runtime 7.3.1.100 CHF 1:
- Configurable TCP keepalive for client connections
- New startup options allow you to enable and tune TCP keepalive
settings for client connections, helping detect dead clients and prevent premature
disconnections caused by network disruptions or load balancer timeouts. The new startup
options include:
client_keepalive_probe_period_s: Idle time before sending keepalive probes. If set to > 0, keepalive is enabled.client_keepalive_retry_period_s: Time between keepalive probes.client_keepalive_retry_count: Number of keepalive probes.
