Thursday, March 10, 2016

Failed to get connections for connection [http://hostname:8000] using session locale [English]


Failed to get connections for connection [http://hostname:8000] using session locale [English].

I was trying to create a OLAP connection from CMC to HANA in BOXI4.1 SP6 for Analysis Office 2.x SSO setup and receive below error. All the server details verified and everything seems to be correct.


After doing some investigation I found that the issue is due to limitation in BI platform4.1 sp06 or lower.

It cannot able to connect to HANA in CMC because there is no data provider available.

Errors in MDAS log file
Creating a BICS application with alias [session-2:http://hostname:8000:dev:en_US:HTTP:CREDENTIALS:null]
JCoDestinationDataProvider adding destination session-2:http://hostname:8000:dev:en_US:HTTP:CREDENTIALS:null.
JCoDestinationDataProvider setting jco.destination.pool_capacity property to 0 because it was not specified. <exception> com.sap.ip.bi.base.service.connection.impl.ConnectionException: No connection factory found for type session-2:http://hostname:8000:dev:en_US:HTTP:CREDENTIALS:null/HTTP.

Possible Solution: Upgrade to BI 4.1 SP07 or higher then you should be able to connect using HTTP provider.

Refer below SAP Note for more info
2182585 - Cannot connect to the Hana via SAP Hana Http OLAP connection in CMC


Regards
Satishbabu Gunukula, Oracle ACE

Monday, March 7, 2016

Unable to Connect to Published Data Sources When Opening a Downloaded Workbook from Tableau Server


I recently upgraded Tableau server from 9.1.2 to 9.1.3 to fix an issue with Data Server Data source. After upgrade we found below issue during the testing.

While opening a downloaded workbook from tableau server we received “Tableau Server Sign In” but URL greyed out and also URL is not correct as it is replaced by host name.


Normally you should receive a prompt to log in to the Tableau server, instead the server name field default to http://localhost and is unavailable for edit.

When we try to connect we got following error and not able to connect to published data source.

Cannot connect to Tableau Server. Please check the server name and port and try again. Internet communication error: SSL peer certificate or SSH remote key was not OK (analysis-server1)



It looks like the tableau server is not configured to recognize all the alias host names used to connect to the server. I have followed below steps to update the URL and port and able to resolve the issue.


1. Open command prompt as an administrator and go to the Tableau Server bin folder.
cd C:\Program Files\Tableau\Tableau Server\9.1\bin
2. Run the following command:
tabadmin set gateway.public.host "name"

where name is the URL used to connect to Tableau Server. For example:
tabadmin set gateway.public.host "analysis.oracleracexpert.com" 

3. If Tableau Server is configured for SSL, you must also run the following command:
tabadmin set gateway.public.port 443

4. Apply the configuration changes, and restart Tableau Server using following commands
tabadmin config
tabadmin restart



If a load balancer or proxy is in front of Tableau Server, the headers are not set.  Please refer to the following Knowledge Base article for information on the required headers

Reverse Proxy Server URL Reverts to Internal URL

Regards,
Satishbabu Gunukula, Oracle ACE

Tuesday, March 1, 2016

Note 1732157 - Collecting support information for SAP HANA.

If you open any ticket with HANA, first they will ask you to collect the dump.

Collecting the dump is very simple in HANA and follows the steps.

1. Open HANA Studio -->  go to ‘Diagnosis files’ --> In ‘Diagnosis Information’ click  'List '
2. Select the dates where you had the issue or you want to collect diagnosis information --> Click “OK”
3. Collecting the diagnosis information will take time and once it finish “Download the Collection”

The dump will be created under below path
/usr/sap/SID/SYS/global/sapcontrol/snapshots

Regards,
Satishbabu Gunukula, Oracle ACE
http://www.oracleracexpert.com

Webinar: Convert Single Instance to RAC

This Webinar helps Oracle community to understand the "RAC Benefits" and how to "Convert your single instance to RAC”.

Date and time: Friday, March 18th, 2016 8:00 am-9:00am
Pacific Daylight Time (San Francisco, GMT-07:00)


This Webinar covers following Topics.
  • Oracle RAC and its Benefits
  • Overview of different RAC conversion methods
  • Overview of different Storage options
  • Convert Single instance to Oracle RAC Using RMAN
    • Overview
    • Prerequisites
    • Demonstration
  • Check the logs
  • Post Conversion Steps
  • References
  • Contact Info
  • Q&A
To register for this Webinar, please send an email to SatishbabuGunukula@gmail.com and reserve your spot. Note that registrations are limited and accepted on first come and first serve basis.

You will receive an email confirmation with meeting session link. For presentation link Click here .

Regards,
Satishbabu Gunukula, Oracle ACE
http://www.oracleracexpert.com