[IMPALA-6675] Change default configuration to --compact_catalog_topic=true

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: Impala 2.11.0
• Fix Version/s: Impala 3.0, Impala 2.12.0
• Component/s: Backend
• Target Version: Product Backlog
• Epic Color: ghx-label-7
• Assignee: Alexander Behm
• Reporter: Alexander Behm
• Created: 15/Mar/18 17:52
• Updated: 22/Mar/18 18:23
• Resolved: 16/Mar/18 19:14

Description

The catalog metadata can become large and lead to excessive network traffic due to dissemination via the statestore. The --compact_catalog_topic flag was introduced to mitigate this issue by compressing the catalog topic entries to reduce their serialized size.
This saves network bandwidth at the cost of a small quantity of CPU time.

To improve the out-of-the box experience of users we should enable this flag by default.

Issue Links

• is duplicated by: IMPALA-5808 Consider making --compact_catalog_topic the default

Sub-Tasks

• Impala 2.12 & 3.0 Docs: Change default configuration to --compact_catalog_topic=true: Closed