Mr.Zhou:
Thanks for your efforts.
Would you please post the screenshots for following 2 scenarios?
1) stop both master and slave, then start standby, what would be the result form the selection?
2) stop only master but leave slave running, then start standby, what would be the result of the selection?
If you have no time, only scenario one is needed.
Best regards.
Hi folks,
We recently upgraded from 72 to 80 and now I noticed I can no longer debug my deprecated procedures. For example when I add breakpoints to any lines of my code the breakpoint gets a red X inside the breakpoint icon and if I mouse-over the icon I get error 'you cannot set breakpoints because you are not authorized to debug this procedure'. Has something changed with security in relation to debugging in rev80? Interestingly I can copy and paste all the code into a new hdbprocedure and debug works fine. I have been meaning to move all my old deprecated procs to newer hdbprocedures however I've been procrastinating as I'm not clear what the difference is between the two procedure types. So if you have any feedback on that difference it would be a bonus.
NOTE: Also if I debug deprecated procedure with old 72 studio it also does not work any longer (I cant debug with 72 or 80 studio now that db is upgraded to 80).
Thanks!
-Patrick
Hello Experts,
My production database of size around 1TB in distributed system with 4+2 nodes. Last week, we tried to bring down the DB for OS patches, the HANA DB took almost 45 mins to come down.
The BW application server was down few mins before we issue the command in DB side. I am aware of the internal process during shutdown. But my question is any one could able to explain is there is any best practices before issuing the DB stop command in HANA.
I would like to effeciently handle the DB outage. Your thoughts will be appreciated.
Regards
Suresh
>Has something changed with security in relation to debugging in rev80?
Yes there is now an explicit DEBUG SQL authorization which must be set at the Schema or Procedure level. Although this was new in SPS07, actually. This requirement comes from the backend not the Studio. See the Debugging Authorization Concept section of this blog for more details:
Ahh actually we upgraded TWO of our servers. One from 72 to 80 and the other from 68 to 80 which is actually in fact the one i'm using so that explains that mystery why it was working before. Although I if I create an hdbprocedure it's not requiring me to set this explicit authorization. It only seems to be for the deprecated. Anyway reading through the rest of that post.... Many thanks!
-Patrick
Hi all,
Can anybody provide an example for the scenario, when we need to go for a calculation view using scripting approach rather than Graphical approach?
I just want to know any specific functionality that can't be done using graphical approach?
Thanks,
Sree
Hi Sreedhar,
Please close the thread if your query is answered, so that helps others while searching.
Regards,
Chandu.
Hi Sreedhar,
In Graphical model, very few functions are supported in calculated measures. Functions like RANK(), DENSE_RANK(), PERCENT_RANK(), etc cannot be implemented in graphical models. In these scenarios, we have to go with scripted views.
Hope this clears your doubt.
Regards,
Chandra.
Hello everyone.
In the place where I work I've developed a huge xs library to do some stuff that I need.
I'd like to know if is possible to separate it into files, like in PHP using 'include' or 'require'
Thank you
You can create multiple XSJSLIB files. You can nest them as well - meaning importing an XSJSLIB from within an XSJSLIB. So you might only have one XSJSLIB import at your actually XSJS service level but within the top level XSJSLIB you use use and import multiple other XSJSLIBs.
A) hana is a database, which combines memory and technology.
A common hana server has at leaste 128gb ram. why? because the tables (or columns of that tables) are loaded in memory and are consumed from there. Hana uses compresion (1:11 ratio) and use columnar tables, because it speeds up the data reading from the database.
Hana have 3 parts of storage:
1) memory (explained above)
2) data: the disk where data is recorded
3) log: the disk where the last transactions are logged and it provides with recovery fails
B) you can have diferents scenearios (I will explain some of them):
BW on hana: it speeds up the data access due to hana technology
suite on hana: ERP and BW on hana
Hana has your DW database: you can use hana like a common database and benefits your organization with the speed of hana.
hope it helps.
this image can show you the diferents scenarios
http://esj.com/articles/2014/07/25/~/media/ECG/VirtualizationReview/Images/2014/07/0714vrm_hana.png
Suresh,
I have to seen a problem like this on my installation and I guess the issue comes related with logging and persistance.
how many time it takes to start=?
After all services are started, try to down the server again.
if faster, maybe the logging and persistance are not being backed up properly
if not, the problem is another.
Pablo,
Thanks for your response.
The startup took 12 mins on that day. Yesterday we brought down the prod HANA DB for some parameter change and it was ultra fast. The whole process of restarting was less than 10 mins.
Not able to visualize why it took so long. Might be due to Delta-Merge mechanisms nd subsequently writing to disk.
Regards
Suresh
yes it has huge data - we had to transform this data and some manipulations on the source data - which do not want to do again - so looking for a solution where we can move the table with data.
Inside global.ini, which are the values for "log_mode" and "enable_auto_log_backup" ?
Hi Pavneet,
Here are two more links which you can find some new features like HDBDD, Outbound Connectivity, Job Scheduling, etc..
SAP HANA SPS6 - Various New Developer Features
SAP HANA SPS07 - Various New Developer Features
Best regards,
Wenjun
Dear Experts,
I am upgrading the Hana Database, Currently I am in SPS06.60, planning to upgrade SPS70.73 or 74. Here I have some doubts, please clarify.
1. Can we upgrade the Hana Database directly with SPS70.73 patches? I mean do we need to follow any sequence in patches?
2. In last upgrade I was used “./Hdbupd” to upgrade the database from 53 to 60, can I use the same command / procedure?
3. What are all the IMP post activities? Is there any known issues please let me know.
Thanks in advance.
Mercury.
Hi Sreedhar,
If your calculation involves a non-equi join then you cannot use graphical CV's. You have to either write stored procedures or Scripted CV's.
Regards,
Rahul
Hello Manikandan,
If ECC is maintained with Hana database,then we do not need SLT server.
Regards,
Suman