query UI: announced labelsets column does not distinguish labels from different sets

[devnev]

Thanos, Prometheus and Golang version used:

From /status:

Version 0.7.0
Revision c6eaf68
Branch HEAD
BuildUser circleci@f199bdee6152
BuildDate 20190902-15:43:19
GoVersion go1.12.5

Object Storage Provider:

N/A

What happened:

In case of a thanos query having a store that is itself another thanos query that is announcing all the labelsets from its own stores, the first thanos query ends up displaying a long list of k=v labels without any way to see the boundaries of the label sets.

What you expected to happen:

announced labelsets column groups the labels in each labelset

How to reproduce it (as minimally and precisely as possible):

• run two prometheuses with thanos sidecars and different external labels
• run a thanos query with both the sidecars as stores
• run another thanos query with the previous query as its store
• look at the stores UI of the last thanos query

Full logs to relevant components:

N/A

Anything else we need to know:

N/A

Environment:

N/A

[bwplotka]

Yup 👍 Thanks for the report. Help wanted - frontend bug.