All Systems Operational

About This Site

Welcome to the Learnosity API & Infrastructure status page. This page is designed to give you real-time information on the current status of Learnosity APIs, grouped by functionality and region.

Learnosity currently hosts in the following regions:

VA (Virginia) is our primary US region - based in AWS US-EAST-1 (Virginia, USA). This is the hosting location for all APIs and infrastructure served by API endpoints at *.learnosity.com or *-va.learnosity.com.

OR (Oregon) is our secondary hosted US region - based in AWS US-WEST-1 (Oregon, USA). This region contains the master Itembank endpoints for item, question, tags and activity writes. It provides lower latencies when making Itembank write operations compared to VA (Virginia), and also hosts a copy of our scoring service endpoints, to allow for speedier roundtrip times for clients based closer to this region. This is the hosting location for all APIs and infrastructure served by API endpoints at *-or.learnosity.com, as well as all hosted sites provided by Learnosity (e.g. author.learnosity.com, porter.learnosity.com etc.)

AU (Australia) is our primary hosted Australia & Asia Pacific region - based in AWS AP-SOUTHEAST-2 (Sydney, Australia). This is the hosting location for all APIs and infrastructure served by API endpoints at *-au.learnosity.com.

VA || Authoring ? Operational
Loading & Rendering of Item / Activity List View   Operational
Loading & Rendering of Item / Activity Edit View   Operational
Loading & Rendering of Question Edit View   Operational
Saving of Items / Activities / Tags (Author API)   Operational
Uploading of Images / Audio / Video   Operational
Hierarchy Browsing   Operational
VA || Assessment ? Operational
Loading & Rendering of Questions UI   Operational
Loading & Rendering of Assessment UI   Operational
Fetching of Items from Learnosity infrastructure   Operational
Saving of Student responses   Operational
Adaptive Services   Operational
Dynamic Content Generation   Operational
Sending & Receiving Events API events   Operational
Uploading of Rich student responses (Audio/Images/Files)   Operational
Processing & availability of Rich student responses (Audio/Images/Files)   Operational
VA || Analytics ? Operational
Loading & Rendering of Reports   Operational
Tag based Reporting   Operational
Progress based Reporting   Operational
Large Scale Group Reports   Operational
Availability of Session Information   Operational
Subscore calculation   Operational
Adaptive session information   Operational
LTI Grade Passback   Operational
VA || Data Centric ? Operational
Creation of Questions / Items / Activities / Tags   Operational
Fetching of Questions / Items / Activities / Tags   Operational
Fetching of Session information   Operational
Creation of Sessions   Operational
Creation of Item Pools   Operational
Uploading of Image / Audio / Video Assets   Operational
Updating Session Scores   Operational
Scoring   Operational
Creation of Group Reports   Operational
VA || Miscellaneous ? Operational
LTI Tool Provider   Operational
OR || Authoring ? Operational
Logging in (Author Site)   Operational
Loading & Saving Items & Activities (Legacy Author Site)   Operational
Loading & Adding of Tags (Author Site)   Operational
OR || Data Centric ? Operational
Creation of Questions / Items / Activities / Tags   Operational
Scoring via Data API   Operational
AU || Authoring ? Operational
Loading & Rendering of Item / Activity List View   Operational
Loading & Rendering of Item / Activity Edit View   Operational
Loading & Rendering of Question Edit View   Operational
Saving of Items / Activities / Tags (Author API)   Operational
Uploading of Images / Audio / Video   Operational
Hierarchy Browsing   Operational
AU || Assessment ? Operational
Loading & Rendering of Questions UI   Operational
Loading & Rendering of Assessment UI   Operational
Fetching of Items from Learnosity infrastructure   Operational
Saving of Student responses   Operational
Adaptive Services   Operational
Dynamic Content Generation   Operational
Sending & Receiving Events API events   Operational
Uploading of Rich student responses (Audio/Images/Files)   Operational
Processing & availability of Rich student responses (Audio/Images/Files)   Operational
AU || Analytics ? Operational
Loading & Rendering of Reports   Operational
Tag based Reporting   Operational
Progress based Reporting   Operational
Large Scale Group Reports   Operational
Availability of Session Information   Operational
Subscore calculation   Operational
Adaptive session information   Operational
LTI Grade Passback   Operational
AU || Data Centric ? Operational
Creation of Questions / Items / Activities / Tags   Operational
Fetching of Questions / Items / Activities / Tags   Operational
Fetching of Session information   Operational
Creation of Sessions   Operational
Creation of Item Pools   Operational
Uploading of Image / Audio / Video Assets   Operational
Updating Session Scores   Operational
Scoring   Operational
Creation of Group Reports   Operational
Operational
Degraded Performance
Partial Outage
Major Outage
Maintenance
Past Incidents
Sep 24, 2017

No incidents reported today.

Sep 23, 2017

No incidents reported.

Sep 22, 2017

No incidents reported.

Sep 21, 2017
Between the times of 13:47 and 14:00 UTC, We experienced a delay in session availability, and an issue affecting some API loads in Virginia (VA).

During this period, sessions may not have been available for reporting or data API purposes for a longer time period. As well as this, we experienced a knock on effect that may had had an impact on ~1% of API requests during that period of time. This issue has been fully resolved as of 14:00 UTC.

Learnosity Support and Systems Engineering teams are actively monitoring for any further issues. Please reach out if you have any follow on queries or concerns.
Sep 21, 10:26 EDT
Sep 20, 2017

No incidents reported.

Sep 19, 2017

No incidents reported.

Sep 18, 2017

No incidents reported.

Sep 17, 2017

No incidents reported.

Sep 16, 2017

No incidents reported.

Sep 15, 2017

No incidents reported.

Sep 14, 2017

No incidents reported.

Sep 13, 2017
Resolved - We have rolled out patches across the Questions API and Question Editor API which have resolved this potential issue.

For all customers following our best practice of requesting a minor version you will already be using a fixed version - so there is nothing further to do.

For the few customers requesting a patch version of our API's you will need to manually update to the latest relevant patch version.
Sep 13, 20:41 EDT
Monitoring - On further investigation of this issue we have narrowed down the possible cases where it can occur and confirmed that it is a very small edge case that was caught by our automated testing. In the real world usage it has the potential to affect only 0.009% of items, and only when a very specific sequence of events that occurs only in the authoring environment.

We have investigated and are confident that this bug does not affect any students doing assessments.

Despite the limited scenarios where this can happen, the bug can cause a full browser crash, and so we will be patching multiple versions of the Questions API and Question Editor API - which will roll out on the 14th September AEST.

As per our SLA guidelines we recommend that all production environments point to a minor version - eg X.Y and do NOT point to a patch version X.Y.Z so that you will receive critical patches in a timely manner.
Sep 13, 02:41 EDT
Identified - Our engineering teams have identified the lines of code that are affected by the Chrome 61 bug and have developed a patch to work around this. We are currently testing this and preparing to release patches across all affected API versions to work around this problem for our customers.
Sep 12, 19:04 EDT
Investigating - Due to a browser bug affecting the latest Chrome 61 release (used by ~2% of Learnosity users of the assessment APIs), we are currently running tests to identify potential issues with formula question types and math editing performance.

This may include excess browser memory usage, which may, in extreme cases, cause some browsers to crash.

The potentially affected areas for users of this browser version are:

Math Formula Question Type in review mode, or validated view with correct answers shown (Question Editor API and Questions API)
Cloze Math Formula Question Type in review mode, or validated view with correct answers shown (Question Editor API and Questions API)
Editing of Math Content (Question Editor API)
Any assessments loaded with Mathquill as the default renderer. (Questions API)

Learnosity Support and Systems Engineering teams are actively investigating the issue, and will follow up with an update and resolution as soon as possible. For any further information or concerns, please contact Learnosity Support.
Sep 12, 11:55 EDT
Sep 11, 2017

No incidents reported.

Sep 10, 2017

No incidents reported.