No segment metadata found for segment Id

Hi all,

I’m using Druid 0.11 with Storm/Tranquility for Real-Time processing and a Hadoop ingestion for batch data.

I noticed that I have a lot of errors from my coordinator saying:

No segment metadata found for segment Id

When checking the metadata in MySQL I can see that it really doesn’t exist. I’m not even sure if it’s batch data or real-time data, so I’m wondering what components are able to delete segments metadata from MySQL?

It’s worth noting that it’s missing both segments created before Druid 0.11 (0.8) and with Druid 0.11.

Any help is appreciated.

Thanks