You are viewing a plain text version of this content. The canonical link for it is here.
Posted to user@spark.apache.org by Chanh Le <gi...@gmail.com> on 2016/08/02 07:41:25 UTC
Does it has a way to config limit in query on STS by default?
Hi everyone,
I setup STS and use Zeppelin to query data through JDBC connection.
A problem we are facing is users usually forget to put limit in the query so it causes hang the cluster.
SELECT * FROM tableA;
Is there anyway to config the limit by default ?
Regards,
Chanh
---------------------------------------------------------------------
To unsubscribe e-mail: user-unsubscribe@spark.apache.org
Re: Does it has a way to config limit in query on STS by default?
Posted by Chen Song <ch...@gmail.com>.
I tried both of the following with STS but neither works for me.
Starting STS with --hiveconf hive.limit.optimize.fetch.max=50
and
Setting common.max_count in Zeppelin
Without setting such limits, a query that outputs lots of rows could cause
the driver to OOM and makes TS unusable. Any workarounds or thoughts?
On Tue, Aug 2, 2016 at 7:29 AM Mich Talebzadeh <mi...@gmail.com>
wrote:
> I don't think it really works and it is vague. Is it rows, blocks, network?
>
>
>
> [image: Inline images 1]
>
> Dr Mich Talebzadeh
>
>
>
> LinkedIn * https://www.linkedin.com/profile/view?id=AAEAAAAWh2gBxianrbJd6zP6AcPCCdOABUrV8Pw
> <https://www.linkedin.com/profile/view?id=AAEAAAAWh2gBxianrbJd6zP6AcPCCdOABUrV8Pw>*
>
>
>
> http://talebzadehmich.wordpress.com
>
>
> *Disclaimer:* Use it at your own risk. Any and all responsibility for any
> loss, damage or destruction of data or any other property which may arise
> from relying on this email's technical content is explicitly disclaimed.
> The author will in no case be liable for any monetary damages arising from
> such loss, damage or destruction.
>
>
>
> On 2 August 2016 at 12:09, Chanh Le <gi...@gmail.com> wrote:
>
>> Hi Ayan,
>> You mean
>> common.max_count = 1000
>> Max number of SQL result to *display to prevent the browser overload*.
>> This is common properties for all connections
>>
>>
>>
>>
>> It already set default in Zeppelin but I think it doesn’t work with Hive.
>>
>>
>> DOC: http://zeppelin.apache.org/docs/0.7.0-SNAPSHOT/interpreter/jdbc.html
>>
>>
>> On Aug 2, 2016, at 6:03 PM, ayan guha <gu...@gmail.com> wrote:
>>
>> Zeppelin already has a param for jdbc
>> On 2 Aug 2016 19:50, "Mich Talebzadeh" <mi...@gmail.com> wrote:
>>
>>> Ok I have already set up mine
>>>
>>> <property>
>>> <name>hive.limit.optimize.fetch.max</name>
>>> <value>50000</value>
>>> <description>
>>> Maximum number of rows allowed for a smaller subset of data for
>>> simple LIMIT, if it is a fetch query.
>>> Insert queries are not restricted by this limit.
>>> </description>
>>> </property>
>>>
>>> I am surprised that yours was missing. What did you set it up to?
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>> Dr Mich Talebzadeh
>>>
>>>
>>> LinkedIn * https://www.linkedin.com/profile/view?id=AAEAAAAWh2gBxianrbJd6zP6AcPCCdOABUrV8Pw
>>> <https://www.linkedin.com/profile/view?id=AAEAAAAWh2gBxianrbJd6zP6AcPCCdOABUrV8Pw>*
>>>
>>>
>>> http://talebzadehmich.wordpress.com
>>>
>>> *Disclaimer:* Use it at your own risk. Any and all responsibility for
>>> any loss, damage or destruction of data or any other property which may
>>> arise from relying on this email's technical content is explicitly
>>> disclaimed. The author will in no case be liable for any monetary damages
>>> arising from such loss, damage or destruction.
>>>
>>>
>>>
>>> On 2 August 2016 at 10:18, Chanh Le <gi...@gmail.com> wrote:
>>>
>>>> I tried and it works perfectly.
>>>>
>>>> Regards,
>>>> Chanh
>>>>
>>>>
>>>> On Aug 2, 2016, at 3:33 PM, Mich Talebzadeh <mi...@gmail.com>
>>>> wrote:
>>>>
>>>> OK
>>>>
>>>> Try that
>>>>
>>>> Another tedious way is to create views in Hive based on tables and use
>>>> limit on those views.
>>>>
>>>> But try that parameter first if it does anything.
>>>>
>>>> HTH
>>>>
>>>>
>>>> Dr Mich Talebzadeh
>>>>
>>>>
>>>> LinkedIn * https://www.linkedin.com/profile/view?id=AAEAAAAWh2gBxianrbJd6zP6AcPCCdOABUrV8Pw
>>>> <https://www.linkedin.com/profile/view?id=AAEAAAAWh2gBxianrbJd6zP6AcPCCdOABUrV8Pw>*
>>>>
>>>>
>>>> http://talebzadehmich.wordpress.com
>>>>
>>>> *Disclaimer:* Use it at your own risk. Any and all responsibility for
>>>> any loss, damage or destruction of data or any other property which may
>>>> arise from relying on this email's technical content is explicitly
>>>> disclaimed. The author will in no case be liable for any monetary damages
>>>> arising from such loss, damage or destruction.
>>>>
>>>>
>>>>
>>>> On 2 August 2016 at 09:13, Chanh Le <gi...@gmail.com> wrote:
>>>>
>>>>> Hi Mich,
>>>>> I use Spark Thrift Server basically it acts like Hive.
>>>>>
>>>>> I see that there is property in Hive.
>>>>>
>>>>> hive.limit.optimize.fetch.max
>>>>>
>>>>> - Default Value: 50000
>>>>> - Added In: Hive 0.8.0
>>>>>
>>>>> Maximum number of rows allowed for a smaller subset of data for simple
>>>>> LIMIT, if it is a fetch query. Insert queries are not restricted by this
>>>>> limit.
>>>>>
>>>>>
>>>>> Is that related to the problem?
>>>>>
>>>>>
>>>>>
>>>>>
>>>>> On Aug 2, 2016, at 2:55 PM, Mich Talebzadeh <mi...@gmail.com>
>>>>> wrote:
>>>>>
>>>>> This is a classic problem on any RDBMS
>>>>>
>>>>> Set the limit on the number of rows returned like maximum of 50K rows
>>>>> through JDBC
>>>>>
>>>>> What is your JDBC connection going to? Meaning which RDBMS if any?
>>>>>
>>>>> HTH
>>>>>
>>>>> Dr Mich Talebzadeh
>>>>>
>>>>>
>>>>> LinkedIn * https://www.linkedin.com/profile/view?id=AAEAAAAWh2gBxianrbJd6zP6AcPCCdOABUrV8Pw
>>>>> <https://www.linkedin.com/profile/view?id=AAEAAAAWh2gBxianrbJd6zP6AcPCCdOABUrV8Pw>*
>>>>>
>>>>>
>>>>> http://talebzadehmich.wordpress.com
>>>>>
>>>>> *Disclaimer:* Use it at your own risk. Any and all responsibility for
>>>>> any loss, damage or destruction of data or any other property which may
>>>>> arise from relying on this email's technical content is explicitly
>>>>> disclaimed. The author will in no case be liable for any monetary damages
>>>>> arising from such loss, damage or destruction.
>>>>>
>>>>>
>>>>>
>>>>> On 2 August 2016 at 08:41, Chanh Le <gi...@gmail.com> wrote:
>>>>>
>>>>>> Hi everyone,
>>>>>> I setup STS and use Zeppelin to query data through JDBC connection.
>>>>>> A problem we are facing is users usually forget to put limit in the
>>>>>> query so it causes hang the cluster.
>>>>>>
>>>>>> SELECT * FROM tableA;
>>>>>>
>>>>>> Is there anyway to config the limit by default ?
>>>>>>
>>>>>>
>>>>>> Regards,
>>>>>> Chanh
>>>>>
>>>>>
>>>>>
>>>>>
>>>>
>>>>
>>>
>>
>
Re: Does it has a way to config limit in query on STS by default?
Posted by Mich Talebzadeh <mi...@gmail.com>.
I don't think it really works and it is vague. Is it rows, blocks, network?
[image: Inline images 1]
Dr Mich Talebzadeh
LinkedIn * https://www.linkedin.com/profile/view?id=AAEAAAAWh2gBxianrbJd6zP6AcPCCdOABUrV8Pw
<https://www.linkedin.com/profile/view?id=AAEAAAAWh2gBxianrbJd6zP6AcPCCdOABUrV8Pw>*
http://talebzadehmich.wordpress.com
*Disclaimer:* Use it at your own risk. Any and all responsibility for any
loss, damage or destruction of data or any other property which may arise
from relying on this email's technical content is explicitly disclaimed.
The author will in no case be liable for any monetary damages arising from
such loss, damage or destruction.
On 2 August 2016 at 12:09, Chanh Le <gi...@gmail.com> wrote:
> Hi Ayan,
> You mean
> common.max_count = 1000
> Max number of SQL result to *display to prevent the browser overload*.
> This is common properties for all connections
>
>
>
>
> It already set default in Zeppelin but I think it doesn’t work with Hive.
>
>
> DOC: http://zeppelin.apache.org/docs/0.7.0-SNAPSHOT/interpreter/jdbc.html
>
>
> On Aug 2, 2016, at 6:03 PM, ayan guha <gu...@gmail.com> wrote:
>
> Zeppelin already has a param for jdbc
> On 2 Aug 2016 19:50, "Mich Talebzadeh" <mi...@gmail.com> wrote:
>
>> Ok I have already set up mine
>>
>> <property>
>> <name>hive.limit.optimize.fetch.max</name>
>> <value>50000</value>
>> <description>
>> Maximum number of rows allowed for a smaller subset of data for
>> simple LIMIT, if it is a fetch query.
>> Insert queries are not restricted by this limit.
>> </description>
>> </property>
>>
>> I am surprised that yours was missing. What did you set it up to?
>>
>>
>>
>>
>>
>>
>>
>> Dr Mich Talebzadeh
>>
>>
>> LinkedIn * https://www.linkedin.com/profile/view?id=AAEAAAAWh2gBxianrbJd6zP6AcPCCdOABUrV8Pw
>> <https://www.linkedin.com/profile/view?id=AAEAAAAWh2gBxianrbJd6zP6AcPCCdOABUrV8Pw>*
>>
>>
>> http://talebzadehmich.wordpress.com
>>
>> *Disclaimer:* Use it at your own risk. Any and all responsibility for
>> any loss, damage or destruction of data or any other property which may
>> arise from relying on this email's technical content is explicitly
>> disclaimed. The author will in no case be liable for any monetary damages
>> arising from such loss, damage or destruction.
>>
>>
>>
>> On 2 August 2016 at 10:18, Chanh Le <gi...@gmail.com> wrote:
>>
>>> I tried and it works perfectly.
>>>
>>> Regards,
>>> Chanh
>>>
>>>
>>> On Aug 2, 2016, at 3:33 PM, Mich Talebzadeh <mi...@gmail.com>
>>> wrote:
>>>
>>> OK
>>>
>>> Try that
>>>
>>> Another tedious way is to create views in Hive based on tables and use
>>> limit on those views.
>>>
>>> But try that parameter first if it does anything.
>>>
>>> HTH
>>>
>>>
>>> Dr Mich Talebzadeh
>>>
>>>
>>> LinkedIn * https://www.linkedin.com/profile/view?id=AAEAAAAWh2gBxianrbJd6zP6AcPCCdOABUrV8Pw
>>> <https://www.linkedin.com/profile/view?id=AAEAAAAWh2gBxianrbJd6zP6AcPCCdOABUrV8Pw>*
>>>
>>>
>>> http://talebzadehmich.wordpress.com
>>>
>>> *Disclaimer:* Use it at your own risk. Any and all responsibility for
>>> any loss, damage or destruction of data or any other property which may
>>> arise from relying on this email's technical content is explicitly
>>> disclaimed. The author will in no case be liable for any monetary damages
>>> arising from such loss, damage or destruction.
>>>
>>>
>>>
>>> On 2 August 2016 at 09:13, Chanh Le <gi...@gmail.com> wrote:
>>>
>>>> Hi Mich,
>>>> I use Spark Thrift Server basically it acts like Hive.
>>>>
>>>> I see that there is property in Hive.
>>>>
>>>> hive.limit.optimize.fetch.max
>>>>
>>>> - Default Value: 50000
>>>> - Added In: Hive 0.8.0
>>>>
>>>> Maximum number of rows allowed for a smaller subset of data for simple
>>>> LIMIT, if it is a fetch query. Insert queries are not restricted by this
>>>> limit.
>>>>
>>>>
>>>> Is that related to the problem?
>>>>
>>>>
>>>>
>>>>
>>>> On Aug 2, 2016, at 2:55 PM, Mich Talebzadeh <mi...@gmail.com>
>>>> wrote:
>>>>
>>>> This is a classic problem on any RDBMS
>>>>
>>>> Set the limit on the number of rows returned like maximum of 50K rows
>>>> through JDBC
>>>>
>>>> What is your JDBC connection going to? Meaning which RDBMS if any?
>>>>
>>>> HTH
>>>>
>>>> Dr Mich Talebzadeh
>>>>
>>>>
>>>> LinkedIn * https://www.linkedin.com/profile/view?id=AAEAAAAWh2gBxianrbJd6zP6AcPCCdOABUrV8Pw
>>>> <https://www.linkedin.com/profile/view?id=AAEAAAAWh2gBxianrbJd6zP6AcPCCdOABUrV8Pw>*
>>>>
>>>>
>>>> http://talebzadehmich.wordpress.com
>>>>
>>>> *Disclaimer:* Use it at your own risk. Any and all responsibility for
>>>> any loss, damage or destruction of data or any other property which may
>>>> arise from relying on this email's technical content is explicitly
>>>> disclaimed. The author will in no case be liable for any monetary damages
>>>> arising from such loss, damage or destruction.
>>>>
>>>>
>>>>
>>>> On 2 August 2016 at 08:41, Chanh Le <gi...@gmail.com> wrote:
>>>>
>>>>> Hi everyone,
>>>>> I setup STS and use Zeppelin to query data through JDBC connection.
>>>>> A problem we are facing is users usually forget to put limit in the
>>>>> query so it causes hang the cluster.
>>>>>
>>>>> SELECT * FROM tableA;
>>>>>
>>>>> Is there anyway to config the limit by default ?
>>>>>
>>>>>
>>>>> Regards,
>>>>> Chanh
>>>>
>>>>
>>>>
>>>>
>>>
>>>
>>
>
Re: Does it has a way to config limit in query on STS by default?
Posted by Chanh Le <gi...@gmail.com>.
Hi Ayan,
You mean
common.max_count = 1000
Max number of SQL result to display to prevent the browser overload. This is common properties for all connections
It already set default in Zeppelin but I think it doesn’t work with Hive.
DOC: http://zeppelin.apache.org/docs/0.7.0-SNAPSHOT/interpreter/jdbc.html <http://zeppelin.apache.org/docs/0.7.0-SNAPSHOT/interpreter/jdbc.html>
> On Aug 2, 2016, at 6:03 PM, ayan guha <gu...@gmail.com> wrote:
>
> Zeppelin already has a param for jdbc
>
> On 2 Aug 2016 19:50, "Mich Talebzadeh" <mich.talebzadeh@gmail.com <ma...@gmail.com>> wrote:
> Ok I have already set up mine
>
> <property>
> <name>hive.limit.optimize.fetch.max</name>
> <value>50000</value>
> <description>
> Maximum number of rows allowed for a smaller subset of data for simple LIMIT, if it is a fetch query.
> Insert queries are not restricted by this limit.
> </description>
> </property>
>
> I am surprised that yours was missing. What did you set it up to?
>
>
>
>
>
>
>
>
>
> Dr Mich Talebzadeh
>
> LinkedIn https://www.linkedin.com/profile/view?id=AAEAAAAWh2gBxianrbJd6zP6AcPCCdOABUrV8Pw <https://www.linkedin.com/profile/view?id=AAEAAAAWh2gBxianrbJd6zP6AcPCCdOABUrV8Pw>
>
> http://talebzadehmich.wordpress.com <http://talebzadehmich.wordpress.com/>
>
> Disclaimer: Use it at your own risk. Any and all responsibility for any loss, damage or destruction of data or any other property which may arise from relying on this email's technical content is explicitly disclaimed. The author will in no case be liable for any monetary damages arising from such loss, damage or destruction.
>
>
> On 2 August 2016 at 10:18, Chanh Le <giaosudau@gmail.com <ma...@gmail.com>> wrote:
> I tried and it works perfectly.
>
> Regards,
> Chanh
>
>
>> On Aug 2, 2016, at 3:33 PM, Mich Talebzadeh <mich.talebzadeh@gmail.com <ma...@gmail.com>> wrote:
>>
>> OK
>>
>> Try that
>>
>> Another tedious way is to create views in Hive based on tables and use limit on those views.
>>
>> But try that parameter first if it does anything.
>>
>> HTH
>>
>>
>> Dr Mich Talebzadeh
>>
>> LinkedIn https://www.linkedin.com/profile/view?id=AAEAAAAWh2gBxianrbJd6zP6AcPCCdOABUrV8Pw <https://www.linkedin.com/profile/view?id=AAEAAAAWh2gBxianrbJd6zP6AcPCCdOABUrV8Pw>
>>
>> http://talebzadehmich.wordpress.com <http://talebzadehmich.wordpress.com/>
>>
>> Disclaimer: Use it at your own risk. Any and all responsibility for any loss, damage or destruction of data or any other property which may arise from relying on this email's technical content is explicitly disclaimed. The author will in no case be liable for any monetary damages arising from such loss, damage or destruction.
>>
>>
>> On 2 August 2016 at 09:13, Chanh Le <giaosudau@gmail.com <ma...@gmail.com>> wrote:
>> Hi Mich,
>> I use Spark Thrift Server basically it acts like Hive.
>>
>> I see that there is property in Hive.
>>
>>> hive.limit.optimize.fetch.max
>>> Default Value: 50000
>>> Added In: Hive 0.8.0
>>> Maximum number of rows allowed for a smaller subset of data for simple LIMIT, if it is a fetch query. Insert queries are not restricted by this limit.
>>
>> Is that related to the problem?
>>
>>
>>
>>
>>> On Aug 2, 2016, at 2:55 PM, Mich Talebzadeh <mich.talebzadeh@gmail.com <ma...@gmail.com>> wrote:
>>>
>>> This is a classic problem on any RDBMS
>>>
>>> Set the limit on the number of rows returned like maximum of 50K rows through JDBC
>>>
>>> What is your JDBC connection going to? Meaning which RDBMS if any?
>>>
>>> HTH
>>>
>>> Dr Mich Talebzadeh
>>>
>>> LinkedIn https://www.linkedin.com/profile/view?id=AAEAAAAWh2gBxianrbJd6zP6AcPCCdOABUrV8Pw <https://www.linkedin.com/profile/view?id=AAEAAAAWh2gBxianrbJd6zP6AcPCCdOABUrV8Pw>
>>>
>>> http://talebzadehmich.wordpress.com <http://talebzadehmich.wordpress.com/>
>>>
>>> Disclaimer: Use it at your own risk. Any and all responsibility for any loss, damage or destruction of data or any other property which may arise from relying on this email's technical content is explicitly disclaimed. The author will in no case be liable for any monetary damages arising from such loss, damage or destruction.
>>>
>>>
>>> On 2 August 2016 at 08:41, Chanh Le <giaosudau@gmail.com <ma...@gmail.com>> wrote:
>>> Hi everyone,
>>> I setup STS and use Zeppelin to query data through JDBC connection.
>>> A problem we are facing is users usually forget to put limit in the query so it causes hang the cluster.
>>>
>>> SELECT * FROM tableA;
>>>
>>> Is there anyway to config the limit by default ?
>>>
>>>
>>> Regards,
>>> Chanh
>>>
>>
>>
>
>
Re: Does it has a way to config limit in query on STS by default?
Posted by ayan guha <gu...@gmail.com>.
Zeppelin already has a param for jdbc
On 2 Aug 2016 19:50, "Mich Talebzadeh" <mi...@gmail.com> wrote:
> Ok I have already set up mine
>
> <property>
> <name>hive.limit.optimize.fetch.max</name>
> <value>50000</value>
> <description>
> Maximum number of rows allowed for a smaller subset of data for
> simple LIMIT, if it is a fetch query.
> Insert queries are not restricted by this limit.
> </description>
> </property>
>
> I am surprised that yours was missing. What did you set it up to?
>
>
>
>
>
>
>
> Dr Mich Talebzadeh
>
>
>
> LinkedIn * https://www.linkedin.com/profile/view?id=AAEAAAAWh2gBxianrbJd6zP6AcPCCdOABUrV8Pw
> <https://www.linkedin.com/profile/view?id=AAEAAAAWh2gBxianrbJd6zP6AcPCCdOABUrV8Pw>*
>
>
>
> http://talebzadehmich.wordpress.com
>
>
> *Disclaimer:* Use it at your own risk. Any and all responsibility for any
> loss, damage or destruction of data or any other property which may arise
> from relying on this email's technical content is explicitly disclaimed.
> The author will in no case be liable for any monetary damages arising from
> such loss, damage or destruction.
>
>
>
> On 2 August 2016 at 10:18, Chanh Le <gi...@gmail.com> wrote:
>
>> I tried and it works perfectly.
>>
>> Regards,
>> Chanh
>>
>>
>> On Aug 2, 2016, at 3:33 PM, Mich Talebzadeh <mi...@gmail.com>
>> wrote:
>>
>> OK
>>
>> Try that
>>
>> Another tedious way is to create views in Hive based on tables and use
>> limit on those views.
>>
>> But try that parameter first if it does anything.
>>
>> HTH
>>
>>
>> Dr Mich Talebzadeh
>>
>>
>> LinkedIn * https://www.linkedin.com/profile/view?id=AAEAAAAWh2gBxianrbJd6zP6AcPCCdOABUrV8Pw
>> <https://www.linkedin.com/profile/view?id=AAEAAAAWh2gBxianrbJd6zP6AcPCCdOABUrV8Pw>*
>>
>>
>> http://talebzadehmich.wordpress.com
>>
>> *Disclaimer:* Use it at your own risk. Any and all responsibility for
>> any loss, damage or destruction of data or any other property which may
>> arise from relying on this email's technical content is explicitly
>> disclaimed. The author will in no case be liable for any monetary damages
>> arising from such loss, damage or destruction.
>>
>>
>>
>> On 2 August 2016 at 09:13, Chanh Le <gi...@gmail.com> wrote:
>>
>>> Hi Mich,
>>> I use Spark Thrift Server basically it acts like Hive.
>>>
>>> I see that there is property in Hive.
>>>
>>> hive.limit.optimize.fetch.max
>>>
>>> - Default Value: 50000
>>> - Added In: Hive 0.8.0
>>>
>>> Maximum number of rows allowed for a smaller subset of data for simple
>>> LIMIT, if it is a fetch query. Insert queries are not restricted by this
>>> limit.
>>>
>>>
>>> Is that related to the problem?
>>>
>>>
>>>
>>>
>>> On Aug 2, 2016, at 2:55 PM, Mich Talebzadeh <mi...@gmail.com>
>>> wrote:
>>>
>>> This is a classic problem on any RDBMS
>>>
>>> Set the limit on the number of rows returned like maximum of 50K rows
>>> through JDBC
>>>
>>> What is your JDBC connection going to? Meaning which RDBMS if any?
>>>
>>> HTH
>>>
>>> Dr Mich Talebzadeh
>>>
>>>
>>> LinkedIn * https://www.linkedin.com/profile/view?id=AAEAAAAWh2gBxianrbJd6zP6AcPCCdOABUrV8Pw
>>> <https://www.linkedin.com/profile/view?id=AAEAAAAWh2gBxianrbJd6zP6AcPCCdOABUrV8Pw>*
>>>
>>>
>>> http://talebzadehmich.wordpress.com
>>>
>>> *Disclaimer:* Use it at your own risk. Any and all responsibility for
>>> any loss, damage or destruction of data or any other property which may
>>> arise from relying on this email's technical content is explicitly
>>> disclaimed. The author will in no case be liable for any monetary damages
>>> arising from such loss, damage or destruction.
>>>
>>>
>>>
>>> On 2 August 2016 at 08:41, Chanh Le <gi...@gmail.com> wrote:
>>>
>>>> Hi everyone,
>>>> I setup STS and use Zeppelin to query data through JDBC connection.
>>>> A problem we are facing is users usually forget to put limit in the
>>>> query so it causes hang the cluster.
>>>>
>>>> SELECT * FROM tableA;
>>>>
>>>> Is there anyway to config the limit by default ?
>>>>
>>>>
>>>> Regards,
>>>> Chanh
>>>
>>>
>>>
>>>
>>
>>
>
Re: Does it has a way to config limit in query on STS by default?
Posted by Chanh Le <gi...@gmail.com>.
I just added to spark thrift server as it starts a param —hiveconf hive.limit.optimize.fetch.max=1000
> On Aug 2, 2016, at 4:50 PM, Mich Talebzadeh <mi...@gmail.com> wrote:
>
> Ok I have already set up mine
>
> <property>
> <name>hive.limit.optimize.fetch.max</name>
> <value>50000</value>
> <description>
> Maximum number of rows allowed for a smaller subset of data for simple LIMIT, if it is a fetch query.
> Insert queries are not restricted by this limit.
> </description>
> </property>
>
> I am surprised that yours was missing. What did you set it up to?
>
>
>
>
>
>
>
>
>
> Dr Mich Talebzadeh
>
> LinkedIn https://www.linkedin.com/profile/view?id=AAEAAAAWh2gBxianrbJd6zP6AcPCCdOABUrV8Pw <https://www.linkedin.com/profile/view?id=AAEAAAAWh2gBxianrbJd6zP6AcPCCdOABUrV8Pw>
>
> http://talebzadehmich.wordpress.com <http://talebzadehmich.wordpress.com/>
>
> Disclaimer: Use it at your own risk. Any and all responsibility for any loss, damage or destruction of data or any other property which may arise from relying on this email's technical content is explicitly disclaimed. The author will in no case be liable for any monetary damages arising from such loss, damage or destruction.
>
>
> On 2 August 2016 at 10:18, Chanh Le <giaosudau@gmail.com <ma...@gmail.com>> wrote:
> I tried and it works perfectly.
>
> Regards,
> Chanh
>
>
>> On Aug 2, 2016, at 3:33 PM, Mich Talebzadeh <mich.talebzadeh@gmail.com <ma...@gmail.com>> wrote:
>>
>> OK
>>
>> Try that
>>
>> Another tedious way is to create views in Hive based on tables and use limit on those views.
>>
>> But try that parameter first if it does anything.
>>
>> HTH
>>
>>
>> Dr Mich Talebzadeh
>>
>> LinkedIn https://www.linkedin.com/profile/view?id=AAEAAAAWh2gBxianrbJd6zP6AcPCCdOABUrV8Pw <https://www.linkedin.com/profile/view?id=AAEAAAAWh2gBxianrbJd6zP6AcPCCdOABUrV8Pw>
>>
>> http://talebzadehmich.wordpress.com <http://talebzadehmich.wordpress.com/>
>>
>> Disclaimer: Use it at your own risk. Any and all responsibility for any loss, damage or destruction of data or any other property which may arise from relying on this email's technical content is explicitly disclaimed. The author will in no case be liable for any monetary damages arising from such loss, damage or destruction.
>>
>>
>> On 2 August 2016 at 09:13, Chanh Le <giaosudau@gmail.com <ma...@gmail.com>> wrote:
>> Hi Mich,
>> I use Spark Thrift Server basically it acts like Hive.
>>
>> I see that there is property in Hive.
>>
>>> hive.limit.optimize.fetch.max
>>> Default Value: 50000
>>> Added In: Hive 0.8.0
>>> Maximum number of rows allowed for a smaller subset of data for simple LIMIT, if it is a fetch query. Insert queries are not restricted by this limit.
>>
>> Is that related to the problem?
>>
>>
>>
>>
>>> On Aug 2, 2016, at 2:55 PM, Mich Talebzadeh <mich.talebzadeh@gmail.com <ma...@gmail.com>> wrote:
>>>
>>> This is a classic problem on any RDBMS
>>>
>>> Set the limit on the number of rows returned like maximum of 50K rows through JDBC
>>>
>>> What is your JDBC connection going to? Meaning which RDBMS if any?
>>>
>>> HTH
>>>
>>> Dr Mich Talebzadeh
>>>
>>> LinkedIn https://www.linkedin.com/profile/view?id=AAEAAAAWh2gBxianrbJd6zP6AcPCCdOABUrV8Pw <https://www.linkedin.com/profile/view?id=AAEAAAAWh2gBxianrbJd6zP6AcPCCdOABUrV8Pw>
>>>
>>> http://talebzadehmich.wordpress.com <http://talebzadehmich.wordpress.com/>
>>>
>>> Disclaimer: Use it at your own risk. Any and all responsibility for any loss, damage or destruction of data or any other property which may arise from relying on this email's technical content is explicitly disclaimed. The author will in no case be liable for any monetary damages arising from such loss, damage or destruction.
>>>
>>>
>>> On 2 August 2016 at 08:41, Chanh Le <giaosudau@gmail.com <ma...@gmail.com>> wrote:
>>> Hi everyone,
>>> I setup STS and use Zeppelin to query data through JDBC connection.
>>> A problem we are facing is users usually forget to put limit in the query so it causes hang the cluster.
>>>
>>> SELECT * FROM tableA;
>>>
>>> Is there anyway to config the limit by default ?
>>>
>>>
>>> Regards,
>>> Chanh
>>>
>>
>>
>
>
Re: Does it has a way to config limit in query on STS by default?
Posted by Mich Talebzadeh <mi...@gmail.com>.
Ok I have already set up mine
<property>
<name>hive.limit.optimize.fetch.max</name>
<value>50000</value>
<description>
Maximum number of rows allowed for a smaller subset of data for
simple LIMIT, if it is a fetch query.
Insert queries are not restricted by this limit.
</description>
</property>
I am surprised that yours was missing. What did you set it up to?
Dr Mich Talebzadeh
LinkedIn * https://www.linkedin.com/profile/view?id=AAEAAAAWh2gBxianrbJd6zP6AcPCCdOABUrV8Pw
<https://www.linkedin.com/profile/view?id=AAEAAAAWh2gBxianrbJd6zP6AcPCCdOABUrV8Pw>*
http://talebzadehmich.wordpress.com
*Disclaimer:* Use it at your own risk. Any and all responsibility for any
loss, damage or destruction of data or any other property which may arise
from relying on this email's technical content is explicitly disclaimed.
The author will in no case be liable for any monetary damages arising from
such loss, damage or destruction.
On 2 August 2016 at 10:18, Chanh Le <gi...@gmail.com> wrote:
> I tried and it works perfectly.
>
> Regards,
> Chanh
>
>
> On Aug 2, 2016, at 3:33 PM, Mich Talebzadeh <mi...@gmail.com>
> wrote:
>
> OK
>
> Try that
>
> Another tedious way is to create views in Hive based on tables and use
> limit on those views.
>
> But try that parameter first if it does anything.
>
> HTH
>
>
> Dr Mich Talebzadeh
>
>
> LinkedIn * https://www.linkedin.com/profile/view?id=AAEAAAAWh2gBxianrbJd6zP6AcPCCdOABUrV8Pw
> <https://www.linkedin.com/profile/view?id=AAEAAAAWh2gBxianrbJd6zP6AcPCCdOABUrV8Pw>*
>
>
> http://talebzadehmich.wordpress.com
>
> *Disclaimer:* Use it at your own risk. Any and all responsibility for any
> loss, damage or destruction of data or any other property which may arise
> from relying on this email's technical content is explicitly disclaimed.
> The author will in no case be liable for any monetary damages arising from
> such loss, damage or destruction.
>
>
>
> On 2 August 2016 at 09:13, Chanh Le <gi...@gmail.com> wrote:
>
>> Hi Mich,
>> I use Spark Thrift Server basically it acts like Hive.
>>
>> I see that there is property in Hive.
>>
>> hive.limit.optimize.fetch.max
>>
>> - Default Value: 50000
>> - Added In: Hive 0.8.0
>>
>> Maximum number of rows allowed for a smaller subset of data for simple
>> LIMIT, if it is a fetch query. Insert queries are not restricted by this
>> limit.
>>
>>
>> Is that related to the problem?
>>
>>
>>
>>
>> On Aug 2, 2016, at 2:55 PM, Mich Talebzadeh <mi...@gmail.com>
>> wrote:
>>
>> This is a classic problem on any RDBMS
>>
>> Set the limit on the number of rows returned like maximum of 50K rows
>> through JDBC
>>
>> What is your JDBC connection going to? Meaning which RDBMS if any?
>>
>> HTH
>>
>> Dr Mich Talebzadeh
>>
>>
>> LinkedIn * https://www.linkedin.com/profile/view?id=AAEAAAAWh2gBxianrbJd6zP6AcPCCdOABUrV8Pw
>> <https://www.linkedin.com/profile/view?id=AAEAAAAWh2gBxianrbJd6zP6AcPCCdOABUrV8Pw>*
>>
>>
>> http://talebzadehmich.wordpress.com
>>
>> *Disclaimer:* Use it at your own risk. Any and all responsibility for
>> any loss, damage or destruction of data or any other property which may
>> arise from relying on this email's technical content is explicitly
>> disclaimed. The author will in no case be liable for any monetary damages
>> arising from such loss, damage or destruction.
>>
>>
>>
>> On 2 August 2016 at 08:41, Chanh Le <gi...@gmail.com> wrote:
>>
>>> Hi everyone,
>>> I setup STS and use Zeppelin to query data through JDBC connection.
>>> A problem we are facing is users usually forget to put limit in the
>>> query so it causes hang the cluster.
>>>
>>> SELECT * FROM tableA;
>>>
>>> Is there anyway to config the limit by default ?
>>>
>>>
>>> Regards,
>>> Chanh
>>
>>
>>
>>
>
>
Re: Does it has a way to config limit in query on STS by default?
Posted by Chanh Le <gi...@gmail.com>.
I tried and it works perfectly.
Regards,
Chanh
> On Aug 2, 2016, at 3:33 PM, Mich Talebzadeh <mi...@gmail.com> wrote:
>
> OK
>
> Try that
>
> Another tedious way is to create views in Hive based on tables and use limit on those views.
>
> But try that parameter first if it does anything.
>
> HTH
>
>
> Dr Mich Talebzadeh
>
> LinkedIn https://www.linkedin.com/profile/view?id=AAEAAAAWh2gBxianrbJd6zP6AcPCCdOABUrV8Pw <https://www.linkedin.com/profile/view?id=AAEAAAAWh2gBxianrbJd6zP6AcPCCdOABUrV8Pw>
>
> http://talebzadehmich.wordpress.com <http://talebzadehmich.wordpress.com/>
>
> Disclaimer: Use it at your own risk. Any and all responsibility for any loss, damage or destruction of data or any other property which may arise from relying on this email's technical content is explicitly disclaimed. The author will in no case be liable for any monetary damages arising from such loss, damage or destruction.
>
>
> On 2 August 2016 at 09:13, Chanh Le <giaosudau@gmail.com <ma...@gmail.com>> wrote:
> Hi Mich,
> I use Spark Thrift Server basically it acts like Hive.
>
> I see that there is property in Hive.
>
>> hive.limit.optimize.fetch.max
>> Default Value: 50000
>> Added In: Hive 0.8.0
>> Maximum number of rows allowed for a smaller subset of data for simple LIMIT, if it is a fetch query. Insert queries are not restricted by this limit.
>
> Is that related to the problem?
>
>
>
>
>> On Aug 2, 2016, at 2:55 PM, Mich Talebzadeh <mich.talebzadeh@gmail.com <ma...@gmail.com>> wrote:
>>
>> This is a classic problem on any RDBMS
>>
>> Set the limit on the number of rows returned like maximum of 50K rows through JDBC
>>
>> What is your JDBC connection going to? Meaning which RDBMS if any?
>>
>> HTH
>>
>> Dr Mich Talebzadeh
>>
>> LinkedIn https://www.linkedin.com/profile/view?id=AAEAAAAWh2gBxianrbJd6zP6AcPCCdOABUrV8Pw <https://www.linkedin.com/profile/view?id=AAEAAAAWh2gBxianrbJd6zP6AcPCCdOABUrV8Pw>
>>
>> http://talebzadehmich.wordpress.com <http://talebzadehmich.wordpress.com/>
>>
>> Disclaimer: Use it at your own risk. Any and all responsibility for any loss, damage or destruction of data or any other property which may arise from relying on this email's technical content is explicitly disclaimed. The author will in no case be liable for any monetary damages arising from such loss, damage or destruction.
>>
>>
>> On 2 August 2016 at 08:41, Chanh Le <giaosudau@gmail.com <ma...@gmail.com>> wrote:
>> Hi everyone,
>> I setup STS and use Zeppelin to query data through JDBC connection.
>> A problem we are facing is users usually forget to put limit in the query so it causes hang the cluster.
>>
>> SELECT * FROM tableA;
>>
>> Is there anyway to config the limit by default ?
>>
>>
>> Regards,
>> Chanh
>>
>
>
Re: Does it has a way to config limit in query on STS by default?
Posted by Mich Talebzadeh <mi...@gmail.com>.
OK
Try that
Another tedious way is to create views in Hive based on tables and use
limit on those views.
But try that parameter first if it does anything.
HTH
Dr Mich Talebzadeh
LinkedIn * https://www.linkedin.com/profile/view?id=AAEAAAAWh2gBxianrbJd6zP6AcPCCdOABUrV8Pw
<https://www.linkedin.com/profile/view?id=AAEAAAAWh2gBxianrbJd6zP6AcPCCdOABUrV8Pw>*
http://talebzadehmich.wordpress.com
*Disclaimer:* Use it at your own risk. Any and all responsibility for any
loss, damage or destruction of data or any other property which may arise
from relying on this email's technical content is explicitly disclaimed.
The author will in no case be liable for any monetary damages arising from
such loss, damage or destruction.
On 2 August 2016 at 09:13, Chanh Le <gi...@gmail.com> wrote:
> Hi Mich,
> I use Spark Thrift Server basically it acts like Hive.
>
> I see that there is property in Hive.
>
> hive.limit.optimize.fetch.max
>
> - Default Value: 50000
> - Added In: Hive 0.8.0
>
> Maximum number of rows allowed for a smaller subset of data for simple
> LIMIT, if it is a fetch query. Insert queries are not restricted by this
> limit.
>
>
> Is that related to the problem?
>
>
>
>
> On Aug 2, 2016, at 2:55 PM, Mich Talebzadeh <mi...@gmail.com>
> wrote:
>
> This is a classic problem on any RDBMS
>
> Set the limit on the number of rows returned like maximum of 50K rows
> through JDBC
>
> What is your JDBC connection going to? Meaning which RDBMS if any?
>
> HTH
>
> Dr Mich Talebzadeh
>
>
> LinkedIn * https://www.linkedin.com/profile/view?id=AAEAAAAWh2gBxianrbJd6zP6AcPCCdOABUrV8Pw
> <https://www.linkedin.com/profile/view?id=AAEAAAAWh2gBxianrbJd6zP6AcPCCdOABUrV8Pw>*
>
>
> http://talebzadehmich.wordpress.com
>
> *Disclaimer:* Use it at your own risk. Any and all responsibility for any
> loss, damage or destruction of data or any other property which may arise
> from relying on this email's technical content is explicitly disclaimed.
> The author will in no case be liable for any monetary damages arising from
> such loss, damage or destruction.
>
>
>
> On 2 August 2016 at 08:41, Chanh Le <gi...@gmail.com> wrote:
>
>> Hi everyone,
>> I setup STS and use Zeppelin to query data through JDBC connection.
>> A problem we are facing is users usually forget to put limit in the query
>> so it causes hang the cluster.
>>
>> SELECT * FROM tableA;
>>
>> Is there anyway to config the limit by default ?
>>
>>
>> Regards,
>> Chanh
>
>
>
>
Re: Does it has a way to config limit in query on STS by default?
Posted by Chanh Le <gi...@gmail.com>.
Hi Mich,
I use Spark Thrift Server basically it acts like Hive.
I see that there is property in Hive.
> hive.limit.optimize.fetch.max
> Default Value: 50000
> Added In: Hive 0.8.0
> Maximum number of rows allowed for a smaller subset of data for simple LIMIT, if it is a fetch query. Insert queries are not restricted by this limit.
Is that related to the problem?
> On Aug 2, 2016, at 2:55 PM, Mich Talebzadeh <mi...@gmail.com> wrote:
>
> This is a classic problem on any RDBMS
>
> Set the limit on the number of rows returned like maximum of 50K rows through JDBC
>
> What is your JDBC connection going to? Meaning which RDBMS if any?
>
> HTH
>
> Dr Mich Talebzadeh
>
> LinkedIn https://www.linkedin.com/profile/view?id=AAEAAAAWh2gBxianrbJd6zP6AcPCCdOABUrV8Pw <https://www.linkedin.com/profile/view?id=AAEAAAAWh2gBxianrbJd6zP6AcPCCdOABUrV8Pw>
>
> http://talebzadehmich.wordpress.com <http://talebzadehmich.wordpress.com/>
>
> Disclaimer: Use it at your own risk. Any and all responsibility for any loss, damage or destruction of data or any other property which may arise from relying on this email's technical content is explicitly disclaimed. The author will in no case be liable for any monetary damages arising from such loss, damage or destruction.
>
>
> On 2 August 2016 at 08:41, Chanh Le <giaosudau@gmail.com <ma...@gmail.com>> wrote:
> Hi everyone,
> I setup STS and use Zeppelin to query data through JDBC connection.
> A problem we are facing is users usually forget to put limit in the query so it causes hang the cluster.
>
> SELECT * FROM tableA;
>
> Is there anyway to config the limit by default ?
>
>
> Regards,
> Chanh
>
Re: Does it has a way to config limit in query on STS by default?
Posted by Mich Talebzadeh <mi...@gmail.com>.
This is a classic problem on any RDBMS
Set the limit on the number of rows returned like maximum of 50K rows
through JDBC
What is your JDBC connection going to? Meaning which RDBMS if any?
HTH
Dr Mich Talebzadeh
LinkedIn * https://www.linkedin.com/profile/view?id=AAEAAAAWh2gBxianrbJd6zP6AcPCCdOABUrV8Pw
<https://www.linkedin.com/profile/view?id=AAEAAAAWh2gBxianrbJd6zP6AcPCCdOABUrV8Pw>*
http://talebzadehmich.wordpress.com
*Disclaimer:* Use it at your own risk. Any and all responsibility for any
loss, damage or destruction of data or any other property which may arise
from relying on this email's technical content is explicitly disclaimed.
The author will in no case be liable for any monetary damages arising from
such loss, damage or destruction.
On 2 August 2016 at 08:41, Chanh Le <gi...@gmail.com> wrote:
> Hi everyone,
> I setup STS and use Zeppelin to query data through JDBC connection.
> A problem we are facing is users usually forget to put limit in the query
> so it causes hang the cluster.
>
> SELECT * FROM tableA;
>
> Is there anyway to config the limit by default ?
>
>
> Regards,
> Chanh