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Qlik Support Updates

143 Posts authored by: Gregory Hood

Hi all developer type folks,

 

This Thursday, 12 July Qlik Support will host another Support Techspert Thursday session and this time round we are looking at Unlocking Qlik APIs.   The session covers the following

  • Qlik Sense and NPrinting Authentication
  • Hands-on using Powershell and Postman
  • The Keys to Engaging with Qlik Support

 

The All Important Link.

 

You can also see recordings of earlier STT sessions on Qlik Support's YouTube Channel.

 

Happy Monday to you!

 

Global Support Team

Hi all Qlik Customers,

 

Summer, at least in northern parts, is here and along with that Qlik has a bumper crop of releases for you.  Qlik Sense June 2018 is now available with a host of new features.   You can find information about new features and functionality in Sense June 2018 Qlik Sense Product Innovation Blog.    Qlik Sense June 2018 includes the first iteration of Qlik Sense Multi-Cloud which is a new feature and is license controlled.   Access to Qlik's Multi-Cloud release is being controlled so we can ensure the best possible customer experience and keep you updated on key developments, best practices and resources to assist with your project success.   Please contact your local Qlik Account Manager or Qlik Partner for specific details on how to gain access to the release.

 

With the June 2018 Qlik Sense Enterprise release, Qlik will introduce updates which streamline the Qlik Sense client packaging through the introduction of Webpack, a new technology for module bundling JavaScript® applications. The introduction of Webpack technology will impact a subset of extensions and mashups that make use of unsupported internal Qlik Sense libraries or “private libraries” as described below.  Any solution, i.e. mashups or extensions that make use of a “private” Qlik Sense library should continue to function, but as with all upgrades, testing of your solutions is strongly recommended.  To address the need for use of these unsupported private libraries, Qlik will explore additional public APIs in forthcoming releases.   See the attached FAQ for further information.

 

Qlik NPrinting June 2018 is also released along with GeoAnalytics June 2018.   You can find information on NPrinting features and fixes in the attached release notes.

 

All of our releases are now available on our download site.   As always if you have any questions please contact Qlik Support through chat, telephone or through the Support Portal.

 

Kind regards

Global Support Team

Hi Qlik Web Connector users,

 

If you are a Klout user you should be aware that this platform is being shut down as of today, 25th of May 2018 - see Klout Shuts Down.   Therefore our Klout Web Connector will no longer work and it will be removed from our connector bundle from June onwards.  If you continue to try to use the Klout Connector you will get an error - this is not a Qlik issue and you can prevent the problem by removing Klout data loads and connections.   If you don't use the Klout Connector you will be unaffected.

 

Thank you for choosing Qlik software, if you have any questions please don't hesitate to contact Support.

 

Kind regards

Global Support Team

Commitment to our QlikView Customers

In accordance with Qlik®’s Maintenance Policy, standard support for QlikView 11.20 has ended as of March 31, 2018. However, based on customer feedback Qlik has decided to make Extended Support available to all QlikView 11.20 customers who are currently on maintenance, at no additional charge. Extended Support for QlikView 11.20 will be available until at least March 31, 2019.

The availability of Extended Support for QlikView 11.20 is to provide our valued customers with ample time to upgrade to the fully supported QlikView product, and is not an indication that customers should stay on QlikView 11.20 indefinitely. Further, Extended Support is not an extension of standard support and maintenance under the Qlik Maintenance Policy. It consists only of troubleshooting and fixes that are issued as patches at Qlik’s discretion. Only severe, mission critical issues will be considered for resolution in QlikView 11.20, and there will be no product enhancements to QlikView 11.20 as part of Extended Support.

 

 

The current fully supported versions of QlikView are QlikView 12.00, 12.10, and 12.20. To receive all the benefits of Qlik’s support services (including, but not limited to, product enhancements and service releases) customers must be on one of these versions and current on maintenance fees. The latest versions of QlikView have the benefit of cumulative quality improvements, so we strongly recommend upgrading to the latest version. Qlik Consulting services is well versed in the upgrade process, and can aid both customers and partners to facilitate this transition. We suggest you take advantage of this time to plan your upgrade for the coming year.

 

 

Qlik remains fully committed to QlikView and will continue to invest in it for the foreseeable future. With each new release, we deliver engine-level improvements from Qlik Sense®, increased product quality and performance, and new features such as advanced analytics integration and on-demand app generation. Our QlikView customers can take advantage of ongoing product innovations by continuing the QlikView journey on our latest supported versions.

 

 

For more information on our product roadmap for QlikView, please refer to our statement of direction.

 

 

Thank you.

Dear Qlik Sense and Qlik Sense Mobile users

 

The latest Qlik Sense release is now available on our download site.   Qlik Sense April 2018 is a feature release and includes an exciting new development in assisted data visualizations with chart suggestions.   Simply drag and drop fields on to your sheets and chart suggestions will be made by the Cognitive Engine.   You can also publish an app from the Hub.   The April release also includes a number of bug fixes - see attached release notes for information.

 

For full details see What's New April 2018.

 

We have also released a new version of Qlik Sense Mobile which is now available in the Apple store.   For details of what is new in Sense Mobile April 2018, please see the attached release notes.

 

Thank you for choosing Qlik software.

 

Kind regards

Global Support Team

Dear Qlik users

 

The Global Support team host monthly webinars on various subjects, covering issues which we see reported to us in support.   The Techspert Thursday Webinars are really well attended and tomorrow we are hosting a webinar called Resolving your Qlik Issues 101.


The session will cover:

  • Simple troubleshooting steps
  • How to find a solution
  • Uncovering what you need in logs
  • Case study involving QlikView and Qlik Sense

 

Sign up for April's session here : Yes, I want to join the April Session!.

 

If you want to sign up for monthly invites you can do so here: I want to sign up for an invite to each monthly session

 

Thanks for choosing Qlik Software, and if you are going to Qonnections, have an awesome time!

 

Kind regards

Greg

In case you forgot:

Meltdown and Spectre are the names of two serious security flaws that have been found within computer processors. They could potentially allow hackers to steal sensitive data without users knowing.   We previously posted this information back in January, and here is an update in full.

 

The fixes needed to protect against Meltdown and Spectre might have the unfortunate side effect of having significant performance impact on Windows and Linux operating systems.

 

What is Meltdown?:

 

Meltdown is a security flaw that could allow malicious software to illegally access memory that belongs to the kernel, or another software process. It works by circumventing the memory barriers between applications run in user space and kernel space by an attack involving speculative execution. A branch mis-prediction is provoked in one of several ways, causing the CPU to speculatively execute an illegal code sequence. This is caught by the CPU after the branch is executed, and subsequently rolled back. However, its effect on the hardware cache is not rolled back, and measuring the response time of various accesses to the cache can pinpoint what data was stored in the memory of the victim process through the address space of the adversary.

 

The software fix involves separating the memory page tables of the user space and kernel space, which inevitably leads to a negative performance impact on communication between user level applications and the kernel.

 

What is Spectre?

Spectre is a security flaw that affects modern microprocessors that perform branch prediction. It can be used to trick otherwise error-free applications into giving up secret information by taking advantage of a delay in the time it may take the CPU to check the validity of a memory access call.

 

Mitigation:

 

The following table describes what needs to be done in Microsoft Windows environments to mitigate the Meltdown and Spectre security flaws.

 

Security flaw

 

 

Common Vulnerabilities and Exposures (CVE) ID

 

Exploit name

 

Public CVE name

 

Windows changes needed

 

Windows patches needed?

 

BIOS patches needed?

 

Spectre

 

CVE-2017-5753

 

Variant 1

 

Bounds Check Bypass

 

Recompile with a new compiler

Hardened browser to prevent exploit from JavaScript

 

No

 

No

 

Spectre

 

CVE-2017-5715

 

Variant 2

 

Branch Target Injection

 

New CPU instructions that eliminate branch speculation

 

No

 

Yes

SEE NOTE (2)

 

Meltdown

 

CVE-2017-5754

 

Variant 3

 

Rogue Data Cache Load

 

Isolate kernel and user mode page tables

 

Yes, see (1) below.

Patches:

 

No

 

(1) The operating system patches

have to be enabled in the Windows registry or they will not have any effect. See "Enabling protections on the server" here: https://support.microsoft.com/en-za/help/4072698/windows-server-guidance-to-protect-against-the-speculative-execution


How is Qlik software impacted?

Qlik products are built on top of underlying components such as Operating Systems (OS) and chipsets, therefore Qlik products will rely on the OS fixes for both Spectre and Meltdown to mitigate the security risks.

 

The Qlik Performance and Stability centre are in the process of testing both QlikView and Qlik Sense with operating systems and system BIOS patches that address the Meltdown & Spectre security flaws. Tests include measuring the load of concurrent users ranging from low to high load scenarios. High load in this case is a continuously growing number of concurrent users (up to 300) triggering light calculations with minimum think time between the clicks. The users avoided selecting cached values. The complete bandwidth of the system was tested since the processor needed to calculate every result, which meant that a queue of clicks to serve was built up.

 

The following conclusions are based on the results of the ongoing tests with currently available patches. We are sharing our conclusions here in the spirit of openness and transparency and they may change as more results are gathered.

 

Configuration

 

 

Conclusion

 

Qlik Sense on Windows

 

On dual-socket servers, the performance degrade was 4 - 14% (seemingly depending on the CPU generation).

On quad-socket servers, the performance degrade was smaller with the updated Spectre patch than with the original patch:

•The largest degrade was measured with hyper-threading enabled: the response time increased 8 - 60% (used to be 90% with the original patch).

•With hyper-threading disabled, the performance degrade was smaller, 5% - 40%.

•When testing the updated patch on a quad-socket server with fewer cores, the performance degrade was less significant. SEE NOTE (2)

 

QlikView Server

 

Results are similar to those for Qlik Sense.

On dual-socket servers, the performance degrade was 5 - 11%.

Based on the March 2018 test results, it is recommended to install the updated version of the Spectre patch. SEE NOTE (2)

 

NPrinting

 

No degrade for Qlik Sense.

A degrade of around 10% for QlikView Server.

 

(2) NOTE Important note regarding the Spectre patch: (update 2018-04-12)

 

The original Spectre patch, released in January 2018, caused stability issues and it is recommended not to install that patch. However, it is recommended to install the updated version of the Spectre patch, which was released in March 2018.

 

More information is available on Dell Knowledge Base http://www.dell.com/support/article/se/sv/sebsdt1/sln308588/microprocessor-side-channel-vulnerabilities-cve-2017-5715-cve-2017-5753-cve-2017-5754-impact-on-dell-emc-products-dell-enterprise-servers-storage-and-networking-?lang=en

 

Qlik will be retesting when new patches are available and will update this support blog in due course

 

Product Versions tested:

    Qlik Sense February 2018

    QlikView 12.20

    Qlik NPrinting February 2018 Release Candidate

 

 

Links:

For more information, please see the following pages:

Relevant research papers for deep diving:

Information on vendor fixes:

Hi all QlikView users

 

QlikView November 2017 Service Release 4 is now available on our download site.   Version number 12.20.20500 includes over 20 bug fixes and you can find details of those fixes in the attached release notes.    This release is a pure service release and there are no new features included.

 

The QlikView November 2017 track has a release cadence of approximately one month between each new Service Release.   If you have any questions please don't hesitate to contact our support team.

 

Thank you for choosing Qlik!

 

Kind regards

Global Support Team

Dear QlikView 11.20 user

 

If you are running QlikView 11.20 and have seen the announced End of Life for QlikView 11.20 on 31 March 2018, please be assured that if you, as a current Qlik Maintenance customer, contact support after 1 April 2018 for help that we will assist you, as we do today!

Support will continue to be available for QlikView 11.20 during a grace period.

 

Thank you for choosing Qlik software.

 

Kind regards

Global Support Team

Dear Qlik users

 

We have been working to improve our Support Portal and, if it is acceptable to use the term, the face-lift is now complete!    It should now be easier to find information in our knowledgebase and we have extended our real time chat so we can be even more responsive.

 

Visit our Support Portal at https://qliksupport.force.com/qs_home_page and complete the survey to tell us what you think about the portal and have a chance to win an Amazon gift card.

 

Thanks for choosing Qlik software.

 

Kind regards

Global Support Team

Dear QlikView user

 

As posted previously QlikView 11.20 End of Life moved back to 31 March 2018 and The specified item was not found., we are nearing the official end of life for QlikView 11.20.   QlikView 11.20 has been superceded by QlikView 12.00, initially released in December 2015, followed by 12.10 and 12.20 which were initially released in November 2016 and November 2017 respectively.

 

Support for QlikView 11.20 ends on 31 March 2018, with an extra cost Extended Support option available which extends support until 31 March 2019.   For more information on Extended Support please contact your account manager, reseller partner or view Knowledgebase article number 33679 in the Support Portal.

 

We encourage our users to upgrade to QlikView 12.20 [November 2017 release] release as soon as possible.   12.20 SR3 is already available on our download site and 12.20 SR4 will be delivered around April 1 and regular service releases on the 12.20 track will follow on a roughly monthly release cadence.

 

If you need help or assistance please contact your account manager, services or support team.

 

Kind regards

Global Support Team

Hi everyone, we appear to be having problems with our telephone service provider in the European region therefore users may experience difficulty contacting us by telephone.   We apologize for this.

 

In the interim, please use the Support Portal.   We will update you as soon as the issue has been resolved.

 

Kind regards

Global Support Team

Hi all QlikView users,

 

QlikView November 2017 SR2 (build 12.20.20300) is now available on our download site.   SR2 is a pure service release and contains 9 bug fixes, you can find more information on the bug fixes in the attached release notes.    For users of export to excel, there are two relevant bug fixes.

 

Thank you for choosing Qlik software!   Always follow best practice when upgrading any software and make backups prior to system changes.

 

Kind regards

Global Support Team

Please note a new version of the post was created on 13 April 2018.


Update January 25th 2018

Introduction:

Meltdown and Spectre are the names of two serious security flaws that has been found within computer processors. They could potentially allow hackers to steal sensitive data without users knowing.

The fixes needed to protect against Meltdown and Spectre might have the unfortunate side effect of having significant performance impact on Windows and Linux operating systems.

 

What is Meltdown?

Meltdown is a security flaw that could allow malicious software to illegally access memory that belongs to the kernel, or another software process. It works by circumventing the memory barriers between applications run in user space and kernel space by an attack involving speculative execution. A branch misprediction is provoked in one of several ways, causing the CPU to speculatively execute an illegal code sequence. This is caught by the CPU after the branch is executed, and subsequently rolled back. However, its effect on the hardware cache is not rolled back, and measuring the response time of various accesses to the cache can pinpoint what data was stored in the memory of the victim process through the address space of the adversary.

The software fix involves separating the memory page tables of the user space and kernel space, which inevitably leads to a negative performance impact on communication between user level applications and the kernel.

 

What is Spectre?

Spectre is a security flaw that affects modern microprocessors that perform branch prediction. It can be used to trick otherwise error-free applications into giving up secret information by taking advantage of a delay in the time it may take the CPU to check the validity of a memory access call.

Mitigation

The following table describes what needs to be done in Microsoft Windows environments to mitigate the Meltdown and Spectre security flaws.

Security flaw

Common Vulnerabilities and Exposures (CVE) ID

Exploit name

Public CVE name

Windows changes needed

Windows patches needed?

BIOS patches needed?

Spectre

CVE-2017-5753

Variant 1

Bounds Check Bypass

Recompile with a new compiler

Hardened browser to prevent exploit from JavaScript

No

No

Spectre

CVE-2017-5715

Variant 2

Branch Target Injection

New CPU instructions that eliminate branch speculation

No

Yes

SEE NOTE (2)

Meltdown

CVE-2017-5754

Variant 3

Rogue Data Cache Load

Isolate kernel and user mode page tables

Yes, see (1) below.

Patches:

No

(1) The operating system patches have to be enabled in the Windows registry or they will not have any effect. See "Enabling protections on the server" here: https://support.microsoft.com/en-za/help/4072698/windows-server-guidance-to-protect-against-the-speculative-execution

 

How is Qlik software impacted?

Qlik products are built on top of underlying components such as Operating Systems (OS) and chipsets, therefore Qlik products will rely on the OS fixes for both Spectre and Meltdown to mitigate the security risks.

 

The Qlik Performance and Stability centre are in progress of testing both QlikView and Qlik Sense with operating systems and system BIOS patches that address the Meltdown & Spectre security flaws. Tests include measuring the load of concurrent users ranging from low to high scenarios. High load in this case is a continuously growing number of concurrent users (up to 300) triggering light calculations with minimum think time between the clicks. The users avoided selecting cached values. The complete bandwidth of the system was tested since the processor needed to calculate every result, which meant that a queue of clicks to serve was built up.

The following conclusions are based on the results of the ongoing tests with currently available patches. We are sharing our conclusions here in the spirt of openness and transparency and they may change as more results are gathered.

Configuration

Conclusion

Qlik Sense on Windows

A degrade of 4-20% in the response time and reload duration during typical conditions. The low and medium load scenarios are least affected.

The high load scenarios, especially on four-socket machines, are impacted most with the Spectre patch. SEE NOTE (2)

QlikView Server

Results are similar to those for Qlik Sense.

NPrinting

No degrade for Qlik Sense.

A degrade of around 10% for QlikView Server.

(2) NOTE Important note regarding the Spectre patch: (update 2018-01-22)

Intel has communicated new guidance regarding 'reboot issues and unpredictable system behavior' with the microcode included in the BIOS updates released to address Spectre (Variant 2), CVE-2017-5715.

https://newsroom.intel.com/news/root-cause-of-reboot-issue-identified-updated-guidance-for-customers-and-partners/

In response Dell is advising that all customers should not deploy the BIOS update for the Spectre (Variant 2) vulnerability at this time and have removed the impacted BIOS updates from their support pages.

“If you have already deployed the BIOS update, in order to avoid unpredictable system behavior, you can revert back to a previous BIOS version.

As a reminder, the Operating System patches are not impacted and still provide mitigation to Spectre (Variant 1) and Meltdown (Variant 3). The microcode update is only required for Spectre (Variant 2), CVE-2017-5715."

More information is available on Dell Knowledge Base here

Qlik will be retesting when new patches are available and will update this support blog in due course

Product Versions tested:

  • Qlik Sense November 2017
  • QlikView 12.10 SR8
  • Qlik NPrinting February 2018 Release Candidate

 

Links:

For more information, please see the following pages:

Relevant research papers for deep diving:

 

Information on vendor fixes:

Thank you for choosing Qlik!

 

Kind regards

Global Support Team

Dear QlikView users,

 

We are pleased to confirm that the first service release on the QlikView November 2017 track is now available on our download site.   12.20 SR1 will be the last service release for this year and includes more than 30 bug fixes.   You can find a list of all the fixes included in SR1 in the attached release notes.   If you are using QlikView 11.20 please remember that support for QlikView 11.20 ends on 31 March 2018, with the option of purchasing extended support available should you need it.   It is possible to upgrade from 11.20 (later SRs) to 12.20 SR1, but as with any major upgrade this should be thoroughly tested before upgrading any production environment.

 

Thank you for choosing Qlik software and we hope that you have had a great 2017 and wish you and your families a prosperous 2018!

 

Kind regards

Global Support Team

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