kudu VS nebula

https://github.com/apache/kudu/blob/master/examples/quickstart/impala/README.adoc https://medium.com/@nifi.notes/building-an-effective-nifi-flow-replacetext-60a6016d378c https://community.cloudera.com/t5/Community-Articles/Running-DNS-and-Domain-Scanning-Tools-From-Apache-NiFi/ta-p/248484 https://community.cloudera.com/t5/Community-Articles/Using-Cloudera-Data-Science-Workbench-with-Apache-NiFi-and/ta-p/249469 https://community.cloudera.com/t5/Community-Articles/Scanning-Documents-into-Data-Lakes-via-Tesseract-MQTT-Python/ta-p/248492 https://community.cloudera.com/t5/Community-Articles/Adding-Stanford-CoreNLP-To-Big-Data-Pipelines-Apache-NiFi-1/ta-p/249378 https://community.cloudera.com/t5/Community-Articles/Using-Apache-NiFi-for-Speech-Processing-Speech-to-Text-with/ta-p/249242 https://community.cloudera.com/t5/Community-Articles/Ingesting-Flight-Data-ADS-B-USB-Receiver-with-Apache-NiFi-1/ta-p/247940 https://community.cloudera.com/t5/Community-Articles/Integrating-lucene-geo-gazetteer-For-Geo-Parsing-with-Apache/ta-p/247993 https://community.cloudera.com/t5/Community-Articles/Creating-WordClouds-From-DataFlows-with-Apache-NiFi-and/ta-p/246605 https://community.cloudera.com/t5/Community-Articles/NIFI-1-x-For-Automatic-Music-Playing-Pipelines/ta-p/247994 https://community.cloudera.com/t5/Community-Articles/Using-Apache-NiFi-with-Apache-MXNet-GluonCV-for-YOLO-3-Deep/ta-p/248979 https://community.cloudera.com/t5/Community-Articles/Tracking-Air-Quality-with-HDP-and-HDF-Part-1-Apache-NiFi/ta-p/248265 https://community.cloudera.com/t5/Community-Articles/Monitoring-Energy-Usage-Utilizing-Apache-NiFi-Python-Apache/ta-p/247525 https://community.cloudera.com/t5/Community-Articles/Using-Command-Line-Security-Tools-from-Apache-NiFi/ta-p/248158 https://community.cloudera.com/t5/Community-Articles/Apache-NiFi-Processor-for-Apache-MXNet-SSD-Single-Shot/ta-p/249240 https://community.cloudera.com/t5/Community-Articles/Ingesting-Apache-MXNet-Gluon-Deep-Learning-Results-Via-MQTT/ta-p/248544 https://community.cloudera.com/t5/Community-Articles/Updating-The-Apache-OpenNLP-Community-Apache-NiFi-Processor/ta-p/248398 https://community.cloudera.com/t5/Community-Articles/Integration-Apache-OpenNLP-1-8-4-into-Apache-NiFi-1-5-For/ta-p/248010 https://community.cloudera.com/t5/Community-Articles/Tracking-Phone-Location-for-Android-and-IoT-with-OwnTracks/ta-p/244875 https://community.cloudera.com/t5/Community-Articles/Ingesting-Drone-Data-From-Ryze-Tello-Part-1-Setup-and/ta-p/249422 https://community.cloudera.com/t5/Community-Articles/Ingesting-RDBMS-Data-As-New-Tables-Arrive-Automagically-into/ta-p/246214 https://community.cloudera.com/t5/Community-Articles/Incrementally-Streaming-RDBMS-Data-to-Your-Hadoop-DataLake/ta-p/247927 https://community.cloudera.com/t5/Community-Articles/Ingesting-and-Analyzing-Street-Camera-Data-from-Major-US/ta-p/249194 https://community.cloudera.com/t5/Community-Articles/Basic-Image-Processing-and-Linux-Utilities-As-Part-of-a-Big/ta-p/249121 https://community.cloudera.com/t5/Community-Articles/Hosting-and-Ingesting-Data-From-Web-Pages-Desktop-and-Mobile/ta-p/244575 https://community.cloudera.com/t5/Community-Articles/QADCDC-Our-how-to-ingest-some-database-tables-to-Hadoop-Very/ta-p/245229 https://community.cloudera.com/t5/Community-Articles/Tracking-Air-Quality-with-HDP-and-HDF-Part-2-Indoor-Air/ta-p/249471 https://community.cloudera.com/t5/Community-Articles/Streaming-Ingest-of-Google-Sheets-with-HDF-2-0/ta-p/247764 https://community.cloudera.com/t5/Community-Articles/Ingesting-Golden-Gate-Records-From-Apache-Kafka-and/ta-p/247557 https://community.cloudera.com/t5/Community-Articles/Data-Processing-Pipeline-Parsing-PDFs-and-Identifying-Names/ta-p/249105 https://community.cloudera.com/t5/Community-Articles/Using-A-TensorFlow-quot-Person-Blocker-quot-With-Apache-NiFi/ta-p/248141 https://community.cloudera.com/t5/Community-Articles/Su-Su-Sussudio-Sudoers-Log-Parsing-with-Apache-NiFi/ta-p/249461 https://community.cloudera.com/t5/Community-Articles/Integrating-IBM-Watson-Machine-Learning-APIs-with-Apache/ta-p/247545 https://community.cloudera.com/t5/Community-Articles/Simple-Change-Data-Capture-CDC-with-SQL-Selects-via-Apache/ta-p/308376 https://community.cloudera.com/t5/Community-Articles/Deep-Learning-IoT-Workflows-with-Raspberry-Pi-MQTT-MXNet/ta-p/249456 https://community.cloudera.com/t5/Community-Articles/Parsing-Web-Pages-for-Images-with-Apache-NiFi/ta-p/248415 https://community.cloudera.com/t5/Community-Articles/Trigger-SonicPi-Music-Via-Apache-NiFi/ta-p/248587 https://community.cloudera.com/t5/Community-Articles/Using-Parsey-McParseFace-Google-TensorFlow-Syntaxnet-From/ta-p/246337 https://community.cloudera.com/t5/Community-Articles/Ingesting-osquery-Into-Apache-Phoenix-using-Apache-NiFi/ta-p/249308 https://community.cloudera.com/t5/Community-Articles/Converting-PowerPoint-Presentations-into-French-from-English/ta-p/248974 https://community.cloudera.com/t5/Community-Articles/Posting-Images-with-Apache-NiFi-1-7-and-a-Custom-Processor/ta-p/249017 https://community.cloudera.com/t5/Community-Articles/Parsing-Any-Document-with-Apache-NiFi-1-5-with-Apache-Tika/ta-p/247672

Really interested in partial updates, but haven't found any information on how physically the merges/upserts happen. It would be great if a doc like https://github.com/apache/kudu/blob/master/docs/design-docs/tablet.md existed for apache doris.

we use our in-house baked engine - open sourced here https://github.com/varchar-io/nebula

Yeah, Tinybird has lots of similarities, I will do more research on it, thanks for the reference.

Take a look at this open source project - it may be helpful - https://github.com/varchar-io/nebula

cool - I also hand crafted a CSV parser following RFC4180 a while ago, not sure if you have a repeatable way to benchmark the performance difference?

https://github.com/varchar-io/nebula/blob/master/src/storage...

- if you look for hosting solution by yourself, bringing up a nebula cluster (even a single node) is simple, check out https://github.com/varchar-io/nebula

Many modern data systems are designed in a similar way - extract, index, and query in including many low-latency real-time analytical systems, such as clickhouse, druid, pinot, nebula. Take nebula (https://github.com/varchar-io/nebula) as an example - it connects real-time storage engines like Kafka, cloud storage, or pubsub systems, extracts and index data from message queue into its own distributed system, providing low latency query on top of it for business use cases.