Re: Impact of Removing the defined OTB indexes from a form

2015-05-29 Thread John Sundberg
>From what I can tell of the table you provided -- none of the indexes are
being used.

So - deleting them would have no affect.

Except (and this is a stretch) ... not having these indexes exist means
more memory available to put other indexes into memory. (But - I doubt that
is an issue here).
(If they are not being used - they wouldn't be in memory anyway)

Deleting these indexes will improve "insert and update performance" ... but
- with the speed of disks these days - I doubt that is your bottleneck.

My general recommendation is to "update statistics", identify the problem
queries -- and "create indexes" to assist.


General question ... has anybody seen deleting an index (or 10 indexes)
actually improve any query performance?
If so -- how did it improve?


-John






On Fri, May 29, 2015 at 2:31 AM, Madhu V  wrote:

> **
>
> Recently while troubleshooting performance issues on our Production
> system, our DBA team has identified some unused indexes on T2356 (HPD:Help
> Desk form) and suggested us removing them could improve the query
> performance and clean up some space in the Database. We have verified the
> same from remedy end and found many are OTB defined indexes for the form ,
> same have been mentioned below. Please suggest us whether can we go ahead
> and remove these indexes ?  Please mention if  you foresee any impacts.
>
>
>
> *TableName*
>
> *IndexName*
>
> *Remedy Form Name*
>
> *Remedy Field Name*
>
> *UserSeek*
>
> *UserScans*
>
> *UserLookups*
>
> *UserUpdates*
>
> *TableRows*
>
> T2356
>
> I2356_20003_1
>
> HPD:Help Desk
>
> Product Categorisation Tier 1
> Product Categorisation Tier 2
> Product Categorisation Tier 3
>
> 0
>
> 0
>
> 0
>
> 105264
>
> 903085
>
> T2356
>
> I2356_240001002_1
>
> HPD:Help Desk
>
> Product Name
>
> 0
>
> 0
>
> 0
>
> 105264
>
> 903085
>
> T2356
>
> I2356_100869_1
>
> HPD:Help Desk
>
> Incident Association Type
>
> 0
>
> 0
>
> 0
>
> 103974
>
> 903085
>
> T2356
>
> I2356_301735100_1
>
> HPD:Help Desk
>
> mc_ueid
>
> 0
>
> 0
>
> 0
>
> 102675
>
> 903085
>
> T2356
>
> I2356_301734000_1
>
> HPD:Help Desk
>
> Component_ID
>
> 0
>
> 0
>
> 0
>
> 102675
>
> 903085
>
> T2356
>
> I2356_25023_1
>
> HPD:Help Desk
>
> Escalated?
>
> 0
>
> 248
>
> 0
>
> 102716
>
> 903085
>
>
>
> Please find the version and configuration of AR System details below:
>
> Server version: 8.1.00 201409181335Hotfix
>
> Mid-Tier Version : 8.1.01 (SP1) 201408220302 Hotfix
>
> Web Server Information : Apache Tomcat/7.0.55 Operating System Name :
> Windows Server 2012
>
> Java Version   : 1.7.0_45
>
> Server Group : Yes
>
> DB : MS SQL 2012
>
> On Thu, May 28, 2015 at 6:20 PM, John Sundberg <
> john.sundb...@kineticdata.com> wrote:
>
>> **
>> Well - if it is a unique index - you will make swiss cheese of your
>> system.
>>
>> I would suggest - don’t delete the index.
>>
>> I will ask you a question in return:
>>
>> What benefits do you see in removing an OTB index?
>>
>> -John
>>
>> On Thu, May 28, 2015 at 4:07 AM, Madhu V <
>> madhu.pesronalandpriv...@gmail.com> wrote:
>>
>>> Hi ,
>>>
>>> Can you please let me if there will be any impact if we remove the OTB
>>> defined indexes from the OTB form?
>>>
>>> Regards
>>> Madhu
>>>
>>>
>>> ___
>>> UNSUBSCRIBE or access ARSlist Archives at www.arslist.org
>>> "Where the Answers Are, and have been for 20 years"
>>>
>>
>>
>>
>> --
>>
>> *John Sundberg*
>> Kinetic Data, Inc.
>> "Your business. Your process."
>>
>> 651-556-0930 I john.sundb...@kineticdata.com
>> www.kineticdata.com I community.kineticdata.com
>>
>>
>>  _ARSlist: "Where the Answers Are" and have been for 20 years_
>>
>
> _ARSlist: "Where the Answers Are" and have been for 20 years_




-- 

*John Sundberg*
Kinetic Data, Inc.
"Your business. Your process."

651-556-0930 I john.sundb...@kineticdata.com
www.kineticdata.com I community.kineticdata.com

___
UNSUBSCRIBE or access ARSlist Archives at www.arslist.org
"Where the Answers Are, and have been for 20 years"


Re: Impact of Removing the defined OTB indexes from a form

2015-05-29 Thread Madhu V
Recently while troubleshooting performance issues on our Production system,
our DBA team has identified some unused indexes on T2356 (HPD:Help Desk
form) and suggested us removing them could improve the query performance
and clean up some space in the Database. We have verified the same from
remedy end and found many are OTB defined indexes for the form , same have
been mentioned below. Please suggest us whether can we go ahead and remove
these indexes ?  Please mention if  you foresee any impacts.



*TableName*

*IndexName*

*Remedy Form Name*

*Remedy Field Name*

*UserSeek*

*UserScans*

*UserLookups*

*UserUpdates*

*TableRows*

T2356

I2356_20003_1

HPD:Help Desk

Product Categorisation Tier 1
Product Categorisation Tier 2
Product Categorisation Tier 3

0

0

0

105264

903085

T2356

I2356_240001002_1

HPD:Help Desk

Product Name

0

0

0

105264

903085

T2356

I2356_100869_1

HPD:Help Desk

Incident Association Type

0

0

0

103974

903085

T2356

I2356_301735100_1

HPD:Help Desk

mc_ueid

0

0

0

102675

903085

T2356

I2356_301734000_1

HPD:Help Desk

Component_ID

0

0

0

102675

903085

T2356

I2356_25023_1

HPD:Help Desk

Escalated?

0

248

0

102716

903085



Please find the version and configuration of AR System details below:

Server version: 8.1.00 201409181335Hotfix

Mid-Tier Version : 8.1.01 (SP1) 201408220302 Hotfix

Web Server Information : Apache Tomcat/7.0.55 Operating System Name :
Windows Server 2012

Java Version   : 1.7.0_45

Server Group : Yes

DB : MS SQL 2012

On Thu, May 28, 2015 at 6:20 PM, John Sundberg <
john.sundb...@kineticdata.com> wrote:

> **
> Well - if it is a unique index - you will make swiss cheese of your system.
>
> I would suggest - don’t delete the index.
>
> I will ask you a question in return:
>
> What benefits do you see in removing an OTB index?
>
> -John
>
> On Thu, May 28, 2015 at 4:07 AM, Madhu V <
> madhu.pesronalandpriv...@gmail.com> wrote:
>
>> Hi ,
>>
>> Can you please let me if there will be any impact if we remove the OTB
>> defined indexes from the OTB form?
>>
>> Regards
>> Madhu
>>
>>
>> ___
>> UNSUBSCRIBE or access ARSlist Archives at www.arslist.org
>> "Where the Answers Are, and have been for 20 years"
>>
>
>
>
> --
>
> *John Sundberg*
> Kinetic Data, Inc.
> "Your business. Your process."
>
> 651-556-0930 I john.sundb...@kineticdata.com
> www.kineticdata.com I community.kineticdata.com
>
>
>  _ARSlist: "Where the Answers Are" and have been for 20 years_
>

___
UNSUBSCRIBE or access ARSlist Archives at www.arslist.org
"Where the Answers Are, and have been for 20 years"


Re: Impact of Removing the defined OTB indexes from a form

2015-05-28 Thread John Sundberg
Well - if it is a unique index - you will make swiss cheese of your system.

I would suggest - don’t delete the index.

I will ask you a question in return:

What benefits do you see in removing an OTB index?

-John

On Thu, May 28, 2015 at 4:07 AM, Madhu V  wrote:

> Hi ,
>
> Can you please let me if there will be any impact if we remove the OTB
> defined indexes from the OTB form?
>
> Regards
> Madhu
>
>
> ___
> UNSUBSCRIBE or access ARSlist Archives at www.arslist.org
> "Where the Answers Are, and have been for 20 years"
>



-- 

*John Sundberg*
Kinetic Data, Inc.
"Your business. Your process."

651-556-0930 I john.sundb...@kineticdata.com
www.kineticdata.com I community.kineticdata.com

___
UNSUBSCRIBE or access ARSlist Archives at www.arslist.org
"Where the Answers Are, and have been for 20 years"


Re: Impact of Removing the defined OTB indexes from a form

2015-05-28 Thread Rick Cook
Some DBAs want to manage indexes from the DB level, and so they recreate
them there.  That *can* increase performance, but from that point, all
maintenance of indexes must occur at the DB level.  Apart from that, I
don't know why one would remove indexes from a form, unless it's a form no
one searches against.

Rick Cook

On Thu, May 28, 2015 at 2:15 AM, LJ LongWing  wrote:

> **
>
> Whatever was defined in their workflow that was going to utilize that
> index won't be able to and performance could suffer as a result.
> On May 28, 2015 3:07 AM, "Madhu V" 
> wrote:
>
>> Hi ,
>>
>> Can you please let me if there will be any impact if we remove the OTB
>> defined indexes from the OTB form?
>>
>> Regards
>> Madhu
>>
>>
>> ___
>> UNSUBSCRIBE or access ARSlist Archives at www.arslist.org
>> "Where the Answers Are, and have been for 20 years"
>>
> _ARSlist: "Where the Answers Are" and have been for 20 years_

___
UNSUBSCRIBE or access ARSlist Archives at www.arslist.org
"Where the Answers Are, and have been for 20 years"


Re: Impact of Removing the defined OTB indexes from a form

2015-05-28 Thread LJ LongWing
Whatever was defined in their workflow that was going to utilize that index
won't be able to and performance could suffer as a result.
On May 28, 2015 3:07 AM, "Madhu V" 
wrote:

> Hi ,
>
> Can you please let me if there will be any impact if we remove the OTB
> defined indexes from the OTB form?
>
> Regards
> Madhu
>
>
> ___
> UNSUBSCRIBE or access ARSlist Archives at www.arslist.org
> "Where the Answers Are, and have been for 20 years"
>

___
UNSUBSCRIBE or access ARSlist Archives at www.arslist.org
"Where the Answers Are, and have been for 20 years"


Impact of Removing the defined OTB indexes from a form

2015-05-28 Thread Madhu V
Hi ,

Can you please let me if there will be any impact if we remove the OTB defined 
indexes from the OTB form?

Regards
Madhu

___
UNSUBSCRIBE or access ARSlist Archives at www.arslist.org
"Where the Answers Are, and have been for 20 years"