Michael Ho created IMPALA-8495:
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Summary: Impala Doc: Document Data Read Cache
Key: IMPALA-8495
URL: https://issues.apache.org/jira/browse/IMPALA-8495
Project: IMPALA
Issue Type: Task
Components: Docs
Affects Versions: Impala 3.3.0
Reporter: Michael Ho
Assignee: Alex Rodoni
IMPALA-8341 introduces a data cache for remote reads. In particular, it caches
data for non-local reads (e.g. S3, ABFS, ADLS). The data cache can be enabled
setting the startup flag {{--data_cache=<dir1>,<dir2>,...,<dirN>:<quota>}} in
which {{<dir1>,...,<dirN>}} are directories on local filesystem and {{quota}}
is the storage consumption quota for each directory. Note that multiple Impala
daemons running on the same host *must not* share cache directories.
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