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Are you getting this error:

middleManger configs (druid.indexer.runner.javaOptsArray or druid.worker.capacity) is present in middleManager/runtime.properties, add jvm.config for all other services

The start-druid script automatically calculates memory allocations for each service based on memory available on the system. If you change the properties yourself, you will need to add a jvm.config for each service in the conf/druid/auto folder. Essentially, doing this makes the memory allocation manual.

oh ok... thank you. I will try by adding jvm config. above mentioned error am noticed, let me try again whether I can see that error. Thank You Sergio. 🙏 Note: fyi, currently what I did is, I first started the druid-single node using bin/start-single-server-medium with required properties changes -- xx:maxDirectMemorySize - 4g and etc... I did the one-time-sync of old dated bulk data up-to 8-10 lakhs record in 1 hour task duration. Once that bulk data sync was completed. I suspended the kafka-index-datasource supervisor and stopped the druid service and restarted the service using bin/start-druid auto config.