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Could you check and confirm if your druid cluster is stable and services are running fine (Zookeeper/Middlemanagers /Overlord etc ) ? For the log analysis, you can follow below sequence - 1. Note the

task_id

> search for it

overlord

log > look for sequence of events [ Form here you should be able to see if the task was assigned to

MiddleManager

or else if something went wrong before ] 2. If the tasks are assigned to a MM then note the Middlemanager host and search for the task_id in the middle manager log [ See what middleManager log says]

view full logs’ shows 404.

This seems to be a configuration issue or there are no logs generated ( may be task did not run at all ). https://druid.apache.org/docs/latest/configuration/index.html#task-logging

1. Try to reduce number of

index_parallel

jobs for now for sake of troubleshooting ; Aim for 1 for now 2. If it fails, check the task log

Thanks @Brandon Tan @Vaibhav . i will check and update