OpenTSDB has a hard-coded limit of 8 tags per datapoint

[swsnider]

If you attempt to submit a datapoint with more than 8 tags, OpenTSDB will return an error.

See OpenTSDB/opentsdb#437

We should handle this like we do NaN, and avoid sending these points.

[fabxc]

Tough one. Makes OpenTSDB pretty useless as a Prometheus remote storage in my opinion – this also gives people reasons to design their metrics around limitations of down stream components.

[beorn7]

Yes, known issue.

We definitely need to document that and think about a fallback mechanism once OpenTSDB support is not purely experimental.

[beorn7]

Fallback might not be reasonably possible. Probably just not write the affected time series out to OpenTSDB and issue warnings about it.

[fabxc]

From recent discussion this is no longer the case: #10 (comment)

[grobie]

For reference, the limit is controlled by tsd.storage.max_tags and still defaults to 8.

[lock]

This thread has been automatically locked since there has not been any recent activity after it was closed. Please open a new issue for related bugs.