I do have an SPJ that supports displaying and changing cqd  values in the
“_MD_”.defaults table.



    Roberta



*From:* Suresh Subbiah [mailto:[email protected]]
*Sent:* Tuesday, February 2, 2016 12:45 PM
*To:* [email protected]
*Subject:* Re: How to change default CQD?



Yes, the same copy must be maintained on all nodes. This is similar to the
ms.env file that is in the same directory. I too feel that the _MD_.default
method is easier to manage. I mention it here only for the sake of
completeness.



With both _MD_.default and the file method, if access is through a
connectivity service, then a new instance of mxosrvr may be needed (as
these attributes are read at process initialization time).



Thanks

Suresh





On Tue, Feb 2, 2016 at 2:34 PM, Eric Owhadi <[email protected]> wrote:

Interesting, but how do we manage this on a cluster? Do we have to
maintain the same copy on each node? (just curious, I will use the
_*MD*_.default
method)



Eric



*From:* Suresh Subbiah [mailto:[email protected]]
*Sent:* Tuesday, February 2, 2016 2:29 PM
*To:* [email protected]
*Subject:* Re: How to change default CQD?



Hi,



One can also create (or add to the file it already exists) a text file
called SQSystemDefaults.conf in the directory $MY_SQROOT/etc and add
attribute name and the value it should be set to in the file.

I think each attribute should in a separate line and the attribute value
should NOT be surrounded by single quotes as we would do from sqlci/trafci.

This file is also created by install_local_hadoop. if this script was used,
you may see an empty file with a few comments in your instance.



Thanks

Suresh





On Tue, Feb 2, 2016 at 12:34 PM, Eric Owhadi <[email protected]> wrote:

Thanks Anoop,

So I will use the following insert statement:

insert into "_MD_".defaults values ('MY_CQD', 'value of CQD', 'comment why
it is inserted');



Eric







*From:* Anoop Sharma [mailto:[email protected]]
*Sent:* Tuesday, February 2, 2016 12:29 PM
*To:* [email protected]
*Subject:* RE: How to change default CQD?



You can change it in code by modifying the defaults array in
sqlcomp/nadefaults.cpp

or you can insert the default value in system defaults table
trafodion.“_MD_”.defaults.

If you do the insert, you will need to restart dcs servers to pick up the
new value.



anoop



*From:* Eric Owhadi [mailto:[email protected]]
*Sent:* Tuesday, February 2, 2016 10:26 AM
*To:* [email protected]
*Subject:* How to change default CQD?



Hello Trafodioneers,

I have seen in the code that there is a way to globally change the default
Control Query Default values. But I can’t find it in the docs.

Can someone help me on this?

Regards,
Eric

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