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https://issues.apache.org/jira/browse/DRILL-5457?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16025124#comment-16025124
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ASF GitHub Bot commented on DRILL-5457:
---------------------------------------
Github user Ben-Zvi commented on a diff in the pull request:
https://github.com/apache/drill/pull/822#discussion_r118545693
--- Diff: exec/java-exec/src/main/resources/drill-module.conf ---
@@ -179,6 +179,26 @@ drill.exec: {
// Use plain Java compilation where available
prefer_plain_java: false
},
+ spill: {
--- End diff --
Added "spill" and "hashagg" sections in the override example file, with
some comments:
spill: {
# These options are common to all spilling operators.
# They can be overriden, per operator (but this is just for
# backward compatibility, and may be deprecated in the future)
directories : [ "/tmp/drill/spill" ],
fs : "file:///"
}
hashagg: {
# The partitions divide the work inside the hashagg, to ease
# handling spilling. This initial figure is tuned down when
# memory is limited.
# Setting this option to 1 disables spilling !
num_partitions: 32,
spill: {
# The 2 options below override the common ones
# they should be deprecated in the future
directories : [ "/tmp/drill/spill" ],
fs : "file:///"
}
},
> Support Spill to Disk for the Hash Aggregate Operator
> -----------------------------------------------------
>
> Key: DRILL-5457
> URL: https://issues.apache.org/jira/browse/DRILL-5457
> Project: Apache Drill
> Issue Type: Improvement
> Components: Execution - Relational Operators
> Affects Versions: 1.10.0
> Reporter: Boaz Ben-Zvi
> Assignee: Boaz Ben-Zvi
> Fix For: 1.11.0
>
>
> Support gradual spilling memory to disk as the available memory gets too
> small to allow in memory work for the Hash Aggregate Operator.
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