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Posted to issues-all@impala.apache.org by "Tim Armstrong (JIRA)" <ji...@apache.org> on 2018/05/16 23:53:00 UTC
[jira] [Resolved] (IMPALA-6645) Consider enabling disk spill
encryption by default
[ https://issues.apache.org/jira/browse/IMPALA-6645?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Tim Armstrong resolved IMPALA-6645.
-----------------------------------
Resolution: Fixed
Fix Version/s: Impala 3.1.0
Impala 2.13.0
> Consider enabling disk spill encryption by default
> --------------------------------------------------
>
> Key: IMPALA-6645
> URL: https://issues.apache.org/jira/browse/IMPALA-6645
> Project: IMPALA
> Issue Type: Improvement
> Components: Backend
> Affects Versions: Not Applicable
> Reporter: Tim Armstrong
> Assignee: Tim Armstrong
> Priority: Major
> Labels: resource-management
> Fix For: Impala 2.13.0, Impala 3.1.0
>
>
> We currently have integrity checks disabled by default because of the additional CPU cost.
> Now that IMPALA-6219 is in, the integrity checks are cheaper so it may be worth just paying the cost. We could also consider doing a lighter-weight CRC checksum, but AES-GCM may be fast enough at 2.3GB/s to do by default.
> We should do an experiment to see if there's a major impact on spill-to-disk perf.
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