Hey , I had druid setup with 4 historical servers , over time free disk space became smaller and smaller .. till got to 99% full , at this point I added another historical server … , question - is druid know to rebalance the capacity of historical disk space after adding / removing an historical server ?, .as it seems now 4 historical’s still allmost full , and the new historical is allmost empty .. should I do some action to have a better spread between historicals ? this is the current state + (I allready set retention policy)

you can try increasing balancerComputeThreads in coordinator dynamic config and check the coordinator log to ensure it is trying to balance. Alternative is to restart historicals but then it will need to reload segments from scratch

what works for me was 1 - set “smartSegmentLoading”: false, 2 - druid_coordinator_balancer_strategy = diskNormalized