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# generals
Slackbot
02/03/2023, 4:29 AMThis message was deleted.
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Brandon Tan
02/03/2023, 4:31 AMCan you be more specific ? Is this happening during querying or ingestion? Any relevant log files ?
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Bharat Thakur
02/03/2023, 4:58 AMIngestion
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Brandon Tan
02/03/2023, 5:06 AMCan you share the indexer/MM log files and the task logs?
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Vijay Narayanan
02/03/2023, 5:24 AMdry reducing max rows in memory. What is your druid.indexer.fork.property.druid.processing.buffer.sizeBytes? You can set this to a max of 2 GB (make sure you also increase -XX:MaxDirectMemorySize in druid.indexer.runner.javaOptsArray. Basically you can set the buffer size to max of 2 GB and if you still get the error then reduce max rows in memory and also set create bitmap index to false for string fields you will definitely not be using in a filter.