Clickhouse exporter creates tables with a 7 day TTL by default

[dharley-atlastix]

Component(s)

exporter/clickhouse

What happened?

Description

Tables created in Clickhouse have a TTL default of 7 days, instead of the documented default of 0 (no TTL).

Documented default:

opentelemetry-collector-contrib/exporter/clickhouseexporter/README.md

Line 275 in b551b66

- `ttl_days` (default = 0): The data time-to-live in days, 0 means no ttl.

Actual default configuration in the exporter factory:

opentelemetry-collector-contrib/exporter/clickhouseexporter/factory.go

Line 54 in b551b66

TTLDays: 7,

Steps to Reproduce

Allow Clickhouse exporter to create any table and inspect the create schema.

Expected Result

No TTL limit should be imposed

Actual Result

7 Day TTL is set.

Collector version

v0.74.0

Environment information

Environment

OS: (e.g., "Ubuntu 20.04")
Compiler(if manually compiled): (e.g., "go 14.2")

OpenTelemetry Collector configuration

No response

Log output

No response

Additional context

No response

[github-actions]

Pinging code owners:

• exporter/clickhouse: @hanjm @dmitryax @Frapschen

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