Yu-Tang Lin created SUBMARINE-1278:
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Summary: Fetching data to k8s cluster before experiment's execution
Key: SUBMARINE-1278
URL: https://issues.apache.org/jira/browse/SUBMARINE-1278
Project: Apache Submarine
Issue Type: New Feature
Reporter: Yu-Tang Lin
Per the discussion with Didi's users,
they think it might be useful if submarine fetches the data from external file
system(ex: hdfs, s3... etc) into cluster first and then the following
executions could read the data from local environment.
After couple discussions, we have couple proposes for above scenario.
# Once the external data source had been set, submarine launches another
container as initialize container of experiment; In this container, we
leverage fsspec to fetch data, and persist into apache arrow, then the workers
in the execution read the data from arrow directly; In the termination phase,
submarine launches another container to clean up the data in arrow.
# the flow is quite similar to option1, instead of we replace fsspec with
alluxio. But due to we're not a hybird cloud environment focusing solution, I
think the tech stack of alluxio is too thick for us, so I prefer the option 1
more.
About the external file system integrating, we'll try to integrate hdfs(w/
kerberos) as our first step.
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