Apache Druid

image.png

what version are you on? Segment over-replication was fixed here <https://github.com/apache/druid/pull/13114> in 25.0

<@U031A9D19NU> I’m using v0.22.1. thank for sharing this issue!!

Maybe historicals become unresponsive, so other ones try to load their segments?  Network or zk issue?  Anything in zk logs or coordinator logs?  (Or historical, but I'm guessing that's where you see the message you posted.)

Big question is why #1 happens.  Hopefully there's something in druid or zk logs.

<@U0411DE2SS0> It seems true! I checked coordinator logs and found number of `org.apache.druid.client.BatchServerInventoryView - Server Disappeared [historical]`  there must be announcing problem i guess. thanks for sharing clues

And also `org.apache.zookeeper.KeeperException$NoNodeException: KeeperErrorCode = NoNode for …`  . maybe zookeeper doesn’t work properly sometimes