dbiir / rainbow Goto Github PK
View Code? Open in Web Editor NEWA data layout optimization framework for wide tables stored on HDFS. See rainbow's webpage
Home Page: https://dbiir.github.io/rainbow/
License: Apache License 2.0
A data layout optimization framework for wide tables stored on HDFS. See rainbow's webpage
Home Page: https://dbiir.github.io/rainbow/
License: Apache License 2.0
Implement a Web-based user interface, including the front-end and the back-end.
The Web UI will interact with existing Rainbow modules to provide a user friendly layout optimization service.
no progress information when commands are executing.
Readmes of evaluate and seek are not ready
The redirect module in the paper has not been implemented with Java.
no MetadataStat for orc and other formats
no command for query redirect
No document for detailed configuration properties of Rainbow.
Client module
upload workloads regularlyWeb module
receive workloads, and begin optimization adaptivelyPipeline
.iml
files and .idea/
directory are auto generated by Intellij IDEA, which are not needed in the codebase.MANIFEST.MF
file is auto generated during Jar file packaging, and should be excluded in the codebase.There is no sql generation command under layout module.
Rainbow configuration file can not be specified in Rainbow-seek module.
Unit tests for this module are not enough.
The commands call receiver.action() when receiver is null.
Orc file format is not supported in Rainbow-evaluation;
OrcMetadataStat does not work when orc.compression is not NONE.
An adaptive optimizer helps optimize one aspect (e.g. row group size or column order) of HDFS wide tables adaptively. There are three type of adaptive optimizer:
Column Order Optimizer;
Row Group Size Optimizer;
Compression Codec Optimizer.
We are going to implement at least the first two in V2.0. Compression Codec Optimizer can be left to a later version.
commands do not have uniformed params format and results format
The execute function of both CmdDuplicate and CmdOrdering under layout module is not implemented.
Core module implements invokers and receivers which are used to construct a framework with all the other modules working as components in it.
Once APC is true, do the follow steps:
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