Re: ERROR: NotImplementedException: MT_DOP not supported

[Xinran Yu Tinney]

Thanks Jim and I think I figured out for now.

2018-02-05 17:14 GMT-06:00 Jim Apple <jbap...@cloudera.com>:

> Can you provide the DDL you used when creating the table? Can you
> provide the query you used to insert? Can you describe what command or
> query you used to set a specific row's numDVs?
>
> On Mon, Feb 5, 2018 at 3:03 PM, Xinran Yu Tinney <yuxinran8...@gmail.com>
> wrote:
> > Thanks Tim, sorry that the attachment does not go through, I was not
> aware
> > that. basically, I was trying to insert some values in a partitioned
> table
> > and trying to find a way set a specific row's numDVs and the error
> happened.
> >
> > 2018-02-05 15:24 GMT-06:00 Tim Armstrong <tarmstr...@cloudera.com>:
> >
> >> We don't support multithreaded execution for all plans currently. I
> think
> >> the docs do a good job of explaining the current limitations:
> >> https://impala.apache.org/docs/build/html/topics/impala_mt_dop.html
> >>
> >> On Mon, Feb 5, 2018 at 1:05 PM, Xinran Yu Tinney <
> yuxinran8...@gmail.com>
> >> wrote:
> >>
> >> > Hi, Impala dev,
> >> >I was creating a table with partitions and then trying to insert
> into
> >> > the table some values, but it shows :
> >> >
> >> > ERROR: NotImplementedException: MT_DOP not supported
> >> >
> >> > Please see the attachment.
> >> >
> >> > Is there anyone can explain why this happens? Thanks!
> >> >
> >> > Xinran
> >> >
> >>
>

Re: What kind of sql query can generate multiple children for EXCHANGE node?

[Xinran Yu Tinney]

Thanks Alex, should we clarify this in the comment of ExchangNode.java
"Typically, an ExchangeNode only has a single sender child but,
 e.g., for distributed union queries an ExchangeNode may have one sender
child per
 union operand."

2018-02-05 11:53 GMT-06:00 Alexander Behm <alex.b...@cloudera.com>:

> An exchange node can only have one child
>
> On Mon, Feb 5, 2018 at 9:52 AM, Xinran Yu Tinney <yuxinran8...@gmail.com>
> wrote:
>
> > Hi, Impala dev,
> >I am working on Jira IMPALA-5440
> > <https://issues.apache.org/jira/browse/IMPALA-5440> and one of the
> problem
> > is to test that Impala will handle cardinality overflow when there are
> > multiple children under EXCHANGE node. I searched among the examples of
> > .test file and could not find one. I was wondering if anyone has
> experience
> > running such queries? Thanks!
> >
> >
> > Xinran
> >
>

Re: ERROR: NotImplementedException: MT_DOP not supported

[Xinran Yu Tinney]

Thanks Tim, sorry that the attachment does not go through, I was not aware
that. basically, I was trying to insert some values in a partitioned table
and trying to find a way set a specific row's numDVs and the error happened.

2018-02-05 15:24 GMT-06:00 Tim Armstrong <tarmstr...@cloudera.com>:

> We don't support multithreaded execution for all plans currently. I think
> the docs do a good job of explaining the current limitations:
> https://impala.apache.org/docs/build/html/topics/impala_mt_dop.html
>
> On Mon, Feb 5, 2018 at 1:05 PM, Xinran Yu Tinney <yuxinran8...@gmail.com>
> wrote:
>
> > Hi, Impala dev,
> >I was creating a table with partitions and then trying to insert into
> > the table some values, but it shows :
> >
> > ERROR: NotImplementedException: MT_DOP not supported
> >
> > Please see the attachment.
> >
> > Is there anyone can explain why this happens? Thanks!
> >
> > Xinran
> >
>

What kind of sql query can generate multiple children for EXCHANGE node?

[Xinran Yu Tinney]

Hi, Impala dev,
   I am working on Jira IMPALA-5440
 and one of the problem
is to test that Impala will handle cardinality overflow when there are
multiple children under EXCHANGE node. I searched among the examples of
.test file and could not find one. I was wondering if anyone has experience
running such queries? Thanks!


Xinran

.test file format

[Xinran Yu Tinney]

Hi,
   Is there a link for how to generate the .test files and what is each
part in it? Thanks!

Xinran

IMPALA-5440 Request for assignment

[Xinran Yu Tinney]

Hi, Impala dev community,
   I was wondering if I could get assigned for IMPALA-5440
. My Jira username :
xyu2017.

Thanks!

Xinran

Software Engineer
Cloudera

Re: Joining Impala mailing list

[Xinran Yu Tinney]

My apache Jira id is xyu2017.

2018-01-02 15:23 GMT-06:00 Xinran Yu Tinney <yuxinran8...@gmail.com>:

> Hi,
>I was wondering if I could start contributing by solving this Jira
> ticket: IMPALA-5314 <https://issues.apache.org/jira/browse/IMPALA-5314>?
>
> Thanks!
>
> 2017-12-29 15:38 GMT-06:00 Xinran Yu Tinney <yuxinran8...@gmail.com>:
>
>> Hi, Impala mailing list,
>>I would like to start contributing on impala project and would like to
>> join the mailing list. Thanks!
>>
>>
>> Xinran Tinney
>>
>> Software Engineer
>> Cloudera
>>
>
>

Re: Joining Impala mailing list

[Xinran Yu Tinney]

Hi,
   I was wondering if I could start contributing by solving this Jira
ticket: IMPALA-5314 <https://issues.apache.org/jira/browse/IMPALA-5314>?

Thanks!

2017-12-29 15:38 GMT-06:00 Xinran Yu Tinney <yuxinran8...@gmail.com>:

> Hi, Impala mailing list,
>I would like to start contributing on impala project and would like to
> join the mailing list. Thanks!
>
>
> Xinran Tinney
>
> Software Engineer
> Cloudera
>