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https://issues.apache.org/jira/browse/IMPALA-8534?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Tim Armstrong updated IMPALA-8534:
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Target Version: Product Backlog (was: Impala 3.3.0)
Description:
Following on from IMPALA-8121, I don't think we can enable the data cache by
default, since it depends on what volumes are available to the container at
runtime. But we should definitely enable it for tests.
[~kwho] said
{quote}When I tested with the data cache enabled in a mini-cluster with 3 node
using the default scale of workload, I ran with 500 MB with 1 partition by
running
start-impala-cluster.py --data_cache_dir=/tmp --data_cache_size=500MB
You can also a pre-existing directory as the startup flag of Impala like
--data_cache=/tmp/data-cache-0:500MB
{quote}
start-impala-cluster.py already mounts some host directories into the
container, so we could either do the same for the data cache, or just depend on
the container root filesystem (which is likely to be slow, unfortunately).
was:Following on from IMPALA-8121, I don't think we can enable the data cache
by default, since it depends on what volumes are available to the container at
runtime. But we should definitely enable it for tests.
> Enable data cache by default for end-to-end containerised tests
> ---------------------------------------------------------------
>
> Key: IMPALA-8534
> URL: https://issues.apache.org/jira/browse/IMPALA-8534
> Project: IMPALA
> Issue Type: Sub-task
> Reporter: Tim Armstrong
> Assignee: Tim Armstrong
> Priority: Major
>
> Following on from IMPALA-8121, I don't think we can enable the data cache by
> default, since it depends on what volumes are available to the container at
> runtime. But we should definitely enable it for tests.
> [~kwho] said
> {quote}When I tested with the data cache enabled in a mini-cluster with 3
> node using the default scale of workload, I ran with 500 MB with 1 partition
> by running
> start-impala-cluster.py --data_cache_dir=/tmp --data_cache_size=500MB
> You can also a pre-existing directory as the startup flag of Impala like
> --data_cache=/tmp/data-cache-0:500MB
> {quote}
> start-impala-cluster.py already mounts some host directories into the
> container, so we could either do the same for the data cache, or just depend
> on the container root filesystem (which is likely to be slow, unfortunately).
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