THIS IS A TEST INSTANCE. ALL YOUR CHANGES WILL BE LOST!!!!
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Concurrrency
- Limitation and Solution
- Independent Operation
- Low Low latency
- Configuration
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Current State | ||
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UNDER DISCUSSION | ||
IN PROGRESS | ||
ABANDONED |  | |
COMPLETED | ||
INACTIVE |
Discussion thread: here
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Implementation
Write Implementation
How
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batch operation works
We use concurrrency to achive the batch operation.
We use concurrrency to achive the batch operation.Main class hudiimport is used to import the rdd dataset to hudi.what the proceduce is import?
(1)We apply the fileparse class to parse the file which we need to import such as txt,csv,tsv.At the same time we define the badfileparseexception to handle the bad file when the file have the problem.
(2)We apply the lineparse class to parse the command line.At the same time we define the badparselineexception to the bad command line.
(3)We apply the multithreading to run fileparse class to batch processing to accelerate the import process.
Hudi provide two standard command lines which hudiimport and hudiexport to realize data batch operation.
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Hudiimport -h master:1990 -l lake -t table -e target.txt
Limitation and Solution
Independent Operation
Hudi provide the serializable operation.However they have the own operation log.Sharing the operaion log across multiple tables would remove the limitation.
Low latency
Hudi is limited by the latency of the underlying object storage.It is difficult to achive millisecond streaming latency using batch ,hudi run the parallel jobs.
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Performance Evaluation
Todo: performance comparison
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