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An administrator must troubleshoot query execution related issues in a DQM executed report.
How is this achieved?
A query execution trace (run tree trace) shows queries that run against a data source. You use the trace to troubleshoot query-related issues.
You can find execution trace logs in the following location:
c10_location/logs/XQE/reportName/runtreeLog.xml.
An administrator wants to use one of the sample audit reports to view the percentage of successful and failed requests for the current day.
What must be done before they can successfully run this report?
Before you can create audit reports or use the sample audit reports that come with IBM Cognos software, you must set up audit reporting.
An administrator needs to add users from multiple authentication providers to a single role.
What needs to be done?
In the Cognos Analytics user interface, authentication providers are represented by namespaces.
Cognos Analytics supports the following types of authentication providers:
Authentication providers are configured in IBM Cognos Configuration, under the Security > Authentication category. After the provider namespace is added there, and the IBM Cognos service is restarted, the namespace name is displayed in Manage > Accounts, and users can log on to Cognos Analytics using that namespace.
An administrator sees that an environment has a long startup time and wants to remedy the issue.
Which solution should be used?
If your IBM Cognos servers operate within a load balancing infrastructure, you can turn off the weighted round robin format of load balancing for the dispatcher. Otherwise, load balancing may be duplicated by the cluster and by IBM Cognos software, which can degrade performance.
You can set the dispatcher property named loadBalancingMode either to weightedRoundRobin or clusterCompatible.
References: IBM Cognos Administration Version 10.1.0, Administration and Security Guide, page 163
An environment has two dispatchers with report servers installed on two machines with following configuration:
Dispatcher 1 on Computer A
Dispatcher 2 on Computer B
What should the setting of processing capacity for Dispatcher 2 be set to, if the capacity for Dispatcher 1 is set to 1?
If your installation includes more than one dispatcher, you can specify the proportion of requests that each dispatcher handles by changing their processing capacity.
This is commonly referred to as load balancing. You typically set the capacity for a dispatcher based on the CPU speed of the computer where it is installed.
For example, a first dispatcher is installed on a 2 GHz computer and a second dispatcher on a 1 GHz computer. You set the processing capacity of the first dispatcher to 2.0 and the second to 1.0. The first dispatcher handles two-thirds of the requests while the second handles one-third of the requests. If you set the capacity of both dispatchers to 1.0, requests are sent to each dispatcher alternately.
The default processing capacity for each dispatcher is 1.0.
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