[jira] [Commented] (KYLIN-4827) SparkMergingDictionary parallelize not work
[ https://issues.apache.org/jira/browse/KYLIN-4827?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=17256798#comment-17256798 ] ASF subversion and git services commented on KYLIN-4827: Commit 9a3e5a3c5ee7ae18cd2612eb2351b40905a63d99 in kylin's branch refs/heads/master from yangjiang [ https://gitbox.apache.org/repos/asf?p=kylin.git;h=9a3e5a3 ] [KYLIN-4827] Fix SparkMergingDictionary parallelize not work. > SparkMergingDictionary parallelize not work > > > Key: KYLIN-4827 > URL: https://issues.apache.org/jira/browse/KYLIN-4827 > Project: Kylin > Issue Type: Improvement > Components: Spark Engine >Reporter: JiangYang >Assignee: JiangYang >Priority: Major > Fix For: v3.1.2 > > Attachments: Completed Stages (2) copy.png, Pasted Graphic 1.png, > Pasted Graphic 2.png, Stage Id.png, Storage Environment.png, > image-2020-11-25-12-46-05-750.png > > -- This message was sent by Atlassian Jira (v8.3.4#803005)
[jira] [Commented] (KYLIN-4827) SparkMergingDictionary parallelize not work
[ https://issues.apache.org/jira/browse/KYLIN-4827?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=17256797#comment-17256797 ] ASF GitHub Bot commented on KYLIN-4827: --- shaofengshi merged pull request #1488: URL: https://github.com/apache/kylin/pull/1488 This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: us...@infra.apache.org > SparkMergingDictionary parallelize not work > > > Key: KYLIN-4827 > URL: https://issues.apache.org/jira/browse/KYLIN-4827 > Project: Kylin > Issue Type: Improvement > Components: Spark Engine >Reporter: JiangYang >Assignee: JiangYang >Priority: Major > Fix For: v3.1.2 > > Attachments: Completed Stages (2) copy.png, Pasted Graphic 1.png, > Pasted Graphic 2.png, Stage Id.png, Storage Environment.png, > image-2020-11-25-12-46-05-750.png > > -- This message was sent by Atlassian Jira (v8.3.4#803005)
[jira] [Commented] (KYLIN-4827) SparkMergingDictionary parallelize not work
[ https://issues.apache.org/jira/browse/KYLIN-4827?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=17256795#comment-17256795 ] ASF GitHub Bot commented on KYLIN-4827: --- shaofengshi commented on pull request #1488: URL: https://github.com/apache/kylin/pull/1488#issuecomment-752822387 thanks Ted, it looks good to me! This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: us...@infra.apache.org > SparkMergingDictionary parallelize not work > > > Key: KYLIN-4827 > URL: https://issues.apache.org/jira/browse/KYLIN-4827 > Project: Kylin > Issue Type: Improvement > Components: Spark Engine >Reporter: JiangYang >Assignee: JiangYang >Priority: Major > Fix For: v3.1.2 > > Attachments: Completed Stages (2) copy.png, Pasted Graphic 1.png, > Pasted Graphic 2.png, Stage Id.png, Storage Environment.png, > image-2020-11-25-12-46-05-750.png > > -- This message was sent by Atlassian Jira (v8.3.4#803005)
[jira] [Commented] (KYLIN-4827) SparkMergingDictionary parallelize not work
[ https://issues.apache.org/jira/browse/KYLIN-4827?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=17255450#comment-17255450 ] ASF GitHub Bot commented on KYLIN-4827: --- Ted-Jiang commented on pull request #1488: URL: https://github.com/apache/kylin/pull/1488#issuecomment-751618454 @shaofengshi In sample cube, merge two month data, did not seen any promote. But in production env it can fix GC job failed issue. This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: us...@infra.apache.org > SparkMergingDictionary parallelize not work > > > Key: KYLIN-4827 > URL: https://issues.apache.org/jira/browse/KYLIN-4827 > Project: Kylin > Issue Type: Bug > Components: Spark Engine >Reporter: JiangYang >Priority: Major > Attachments: Completed Stages (2) copy.png, Pasted Graphic 1.png, > Pasted Graphic 2.png, Stage Id.png, Storage Environment.png, > image-2020-11-25-12-46-05-750.png > > -- This message was sent by Atlassian Jira (v8.3.4#803005)
[jira] [Commented] (KYLIN-4827) SparkMergingDictionary parallelize not work
[ https://issues.apache.org/jira/browse/KYLIN-4827?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=17250879#comment-17250879 ] ASF GitHub Bot commented on KYLIN-4827: --- shaofengshi commented on pull request #1488: URL: https://github.com/apache/kylin/pull/1488#issuecomment-747276562 How much performance improvement from this change? I'd like to know it. Thanks! This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: us...@infra.apache.org > SparkMergingDictionary parallelize not work > > > Key: KYLIN-4827 > URL: https://issues.apache.org/jira/browse/KYLIN-4827 > Project: Kylin > Issue Type: Bug > Components: Spark Engine >Reporter: JiangYang >Priority: Major > Attachments: Completed Stages (2) copy.png, Pasted Graphic 1.png, > Pasted Graphic 2.png, Stage Id.png, Storage Environment.png, > image-2020-11-25-12-46-05-750.png > > -- This message was sent by Atlassian Jira (v8.3.4#803005)
[jira] [Commented] (KYLIN-4827) SparkMergingDictionary parallelize not work
[ https://issues.apache.org/jira/browse/KYLIN-4827?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=17238627#comment-17238627 ] ASF GitHub Bot commented on KYLIN-4827: --- Ted-Jiang opened a new pull request #1488: URL: https://github.com/apache/kylin/pull/1488 ## Proposed changes Describe the big picture of your changes here to communicate to the maintainers why we should accept this pull request. If it fixes a bug or resolves a feature request, be sure to link to that issue. ## Types of changes What types of changes does your code introduce to Kylin? _Put an `x` in the boxes that apply_ - [x] Bugfix (non-breaking change which fixes an issue) - [ ] New feature (non-breaking change which adds functionality) - [ ] Breaking change (fix or feature that would cause existing functionality to not work as expected) - [ ] Documentation Update (if none of the other choices apply) ## Checklist _Put an `x` in the boxes that apply. You can also fill these out after creating the PR. If you're unsure about any of them, don't hesitate to ask. We're here to help! This is simply a reminder of what we are going to look for before merging your code._ - [ ] I have create an issue on [Kylin's jira](https://issues.apache.org/jira/browse/KYLIN), and have described the bug/feature there in detail - [ ] Commit messages in my PR start with the related jira ID, like "KYLIN- Make Kylin project open-source" - [ ] Compiling and unit tests pass locally with my changes - [ ] I have added tests that prove my fix is effective or that my feature works - [ ] If this change need a document change, I will prepare another pr against the `document` branch - [ ] Any dependent changes have been merged ## Further comments If this is a relatively large or complex change, kick off the discussion at user@kylin or dev@kylin by explaining why you chose the solution you did and what alternatives you considered, etc... This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: us...@infra.apache.org > SparkMergingDictionary parallelize not work > > > Key: KYLIN-4827 > URL: https://issues.apache.org/jira/browse/KYLIN-4827 > Project: Kylin > Issue Type: Bug > Components: Spark Engine >Reporter: JiangYang >Priority: Major > Attachments: Completed Stages (2) copy.png, Pasted Graphic 1.png, > Pasted Graphic 2.png, Stage Id.png, Storage Environment.png, > image-2020-11-25-12-46-05-750.png > > -- This message was sent by Atlassian Jira (v8.3.4#803005)
[jira] [Commented] (KYLIN-4827) SparkMergingDictionary parallelize not work 。
[ https://issues.apache.org/jira/browse/KYLIN-4827?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=17238508#comment-17238508 ] JiangYang commented on KYLIN-4827: -- Do experiment in Spark-shell sc.parallelize(1 to 1000, 1000).coalesce(1, true); sc.parallelize(1 to 1000, 1000).coalesce(1,false); 1. !Stage Id.png! 2. !Completed Stages (2) copy.png! > SparkMergingDictionary parallelize not work 。 > - > > Key: KYLIN-4827 > URL: https://issues.apache.org/jira/browse/KYLIN-4827 > Project: Kylin > Issue Type: Bug > Components: Spark Engine >Reporter: JiangYang >Priority: Critical > Attachments: Completed Stages (2) copy.png, Pasted Graphic 1.png, > Pasted Graphic 2.png, Stage Id.png, Storage Environment.png, > image-2020-11-25-12-46-05-750.png > > -- This message was sent by Atlassian Jira (v8.3.4#803005)
[jira] [Commented] (KYLIN-4827) SparkMergingDictionary parallelize not work 。
[
https://issues.apache.org/jira/browse/KYLIN-4827?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=17238506#comment-17238506
]
JiangYang commented on KYLIN-4827:
--
My opinion is: caused by the coalesce:
{code:java}
colToDictPathRDD.coalesce(1, false).saveAsNewAPIHadoopFile(dictOutputPath,
Text.class, Text.class,
SequenceFileOutputFormat.class);
{code}
In Spark Api:
{code:java}
# However, if you're doing a drastic coalesce, e.g. to numPartitions = 1,
* this may result in your computation taking place on fewer nodes than
* you like (e.g. one node in the case of numPartitions = 1). To avoid this,
* you can pass shuffle = true. This will add a shuffle step, but means the
* current upstream partitions will be executed in parallel (per whatever
* the current partitioning is).
{code}
should set coalesce(1, true).
> SparkMergingDictionary parallelize not work 。
> -
>
> Key: KYLIN-4827
> URL: https://issues.apache.org/jira/browse/KYLIN-4827
> Project: Kylin
> Issue Type: Bug
> Components: Spark Engine
>Reporter: JiangYang
>Priority: Critical
> Attachments: Pasted Graphic 1.png, Pasted Graphic 2.png, Storage
> Environment.png
>
>
--
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[jira] [Commented] (KYLIN-4827) SparkMergingDictionary parallelize not work 。
[ https://issues.apache.org/jira/browse/KYLIN-4827?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=17238505#comment-17238505 ] JiangYang commented on KYLIN-4827: -- When run SparkMergingDictionary. Only one task run in job0. > SparkMergingDictionary parallelize not work 。 > - > > Key: KYLIN-4827 > URL: https://issues.apache.org/jira/browse/KYLIN-4827 > Project: Kylin > Issue Type: Bug > Components: Spark Engine >Reporter: JiangYang >Priority: Critical > Attachments: Storage Environment.png > > -- This message was sent by Atlassian Jira (v8.3.4#803005)
