2023-09-26-0-33-0-upgrade-guide.md

date	title	description	authors	release	hide_on_release_notes	badges
2023-09-26	0.33 Upgrade Guide	An upgrade guide that addresses breaking changes in 0.33.0	spencergilbert	0.33.0	false	type breaking change

Vector's 0.33.0 release includes deprecations:

1. Renaming the armv7 rpm package

We cover them below to help you upgrade quickly:

Upgrade guide

Deprecations

Renaming the armv7 rpm package {#armv7-rename}

The armv7 rpm package, vector-<version>-1.armv7.rpm, is now published as vector-<version>-1.armv7hl.rpm to better follow rpm guidelines. The armv7 package will be no longer be published beginning in the 0.34.0 release.

Potentially impactful changes

Async runtime default number of worker threads {#runtime-worker-threads}

We've changed the default number of worker threads spawned by Vector's async runtime from being the number of CPUs on the host machine to the value returned by std::thread::available_parallelism(). This should be a better default value for containerized environments where the container has limited quotas, but note this change may impact performance.

The number of worker threads used can be seen by enabling debug logging, and the value can be overriden by setting the VECTOR_THREADS environment variable.