[
https://issues.apache.org/jira/browse/KYLIN-3669?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16701336#comment-16701336
]
ASF subversion and git services commented on KYLIN-3669:
--------------------------------------------------------
Commit 48a2bec01caa7b764d55bfa74b3da5a4936c598d in kylin's branch
refs/heads/2.5.x-hadoop3.1 from [~Aron.tao]
[ https://gitbox.apache.org/repos/asf?p=kylin.git;h=48a2bec ]
KYLIN-3669, add log to indicate the case when using GTStreamAggregateScanner.
> Add log to GTStreamAggregateScanner
> -----------------------------------
>
> Key: KYLIN-3669
> URL: https://issues.apache.org/jira/browse/KYLIN-3669
> Project: Kylin
> Issue Type: Improvement
> Components: Query Engine
> Reporter: Jiatao Tao
> Assignee: Jiatao Tao
> Priority: Trivial
> Fix For: v2.5.2
>
>
> There's no log printing in GTStreamAggregateScanner, and you know nothing
> about whether you go to this path or not, it's pretty unfriendly for trouble
> shooting.
> Code in _SegmentCubeTupleIterator_.
> {code:java}
> boolean hasMultiplePartitions = records instanceof
> SortMergedPartitionResultIterator;
> if (hasMultiplePartitions && context.isStreamAggregateEnabled()) {
> ...
> // input records are ordered, leverage stream aggregator to produce
> possibly fewer records
> try (GTStreamAggregateScanner aggregator = new
> GTStreamAggregateScanner(inputScanner, scanRequest)) {
> result = aggregator.valuesIterator(gtDimsIdx, gtMetricsIdx);
> } catch (IOException ioe) {
> // implementation of close method of anonymous IGTScanner is empty,
> no way throw exception
> throw new IllegalStateException("IOException is not expected here.",
> ioe);
> }
> return result;
> }
> {code}
--
This message was sent by Atlassian JIRA
(v7.6.3#76005)
