Michael Smith created IMPALA-12115:
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Summary: Must rebuild minicluster to switch filesystems
Key: IMPALA-12115
URL: https://issues.apache.org/jira/browse/IMPALA-12115
Project: IMPALA
Issue Type: Task
Components: Infrastructure
Reporter: Michael Smith
When switching between HDFS, Ozone, S3, and erasure-coded variants, Impala's
minicluster uses the same directory for config and data. That means any time
you want to test a different one, you need to replace the current minicluster
config/data (particularly data load) which can take awhile. When switching from
erasure-coding, you usually need to wipe out the directory because it has too
many nodes configured and build scripts don't know to clean them up.
It would be useful to be able to switch between these configurations more
quickly in a dev environment by preserving each. You can manually do that by
setting {{IMPALA_CLUSTER_NODES_DIR}}, but that's an extra step to remember to
do every time. We should set the directory based on {{TARGET_FILESYSTEM}} and
{{ERASURE_CODING}} so they're automatically preserved.
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