Fixed Issues in Impala

Review the list of Impala issues that are resolved in Cloudera Runtime 7.1.9 SP1.

CDPD-67912: Multiple fixes address performance issues

Fixes various issues there by improving performance.

CDPD-67901: Support python 3.10

The impala-shell commands now works with Python 3.10 on SLES 15 operating system.

CDPD-60005: Fix for two Catalogd with force active failure

The issue has been resolved.

CDPD-67493: Catalogd performance fix

The Catalogd performance is enhanced by the following improvements done through:

• Impala now reloads events to update metadata across Catalogd replicas for refresh or invalidate commands.
• Impala now handles events thrown by Hive Metastore when a compaction is committed, allowing for automatic refreshing after compactions.
• Impala now skips redundant refresh events by processing only the first event, reducing overhead.
• Catalogd now skips preceding events after a manual table refresh, allowing it to quickly catch up with Hive Metastore events.
• Impala now efficiently processes notification events in Catalogd.
• Refined batching logic in Catalogd optimizes event processing by grouping events across different sources per table, enhancing efficiency.
• Impala now optimizes event processing by skipping unnecessary events and better handling manual refreshes to prevent disruptions.
• Catalogd's event processor now reloads file metadata specifically for truncate table operations, in Hive Metastore alter table events.
• Impala's event batching now efficiently manages events for a table, even if there are unrelated events in between.
• Impala now reloads events to update metadata across Catalogd replicas for refresh or invalidate commands.
• Impala now includes table-level metrics added to the Catalogd webUI page, such as avg-events-process-duration and events-consuming-delay.
• Impala now accurately processes subsequent ALTER_PARTITION events after creating a partition through INSERT operation, ensuring enhanced event processing stability and accuracy.