Strange LINQ Exception

I have a similar issue to these posts: I'm posting separately to provide additional information about the issue in my case, along with steps I've taken to debug it. Basically the site works...

Submitting a JSF2 form does not reload the collection on the same page

JSF 2.0 (mojarra) application. I have a very trivial form for adding an item <h:form> #{msg['add custom title']}:<br /> <table> <tr> <td>#{msg['heaading']}:</td> <td><h:inputText...

Websql queued execution - iOS6 Mobile Safari

Since the release of iOS6, my web app has hit a series of bugs, one of the worst being what I'm almost 100% positive is websql transactions being queued. When I first load the app in mobile...

Flushing Magento Cache breaks nav bar and links

Today after updating an xml file on my magento installation, I performed a routine cache flush in the backend of magento. More specifically, I pressed the two buttons "Flush Magento Cache" and...

Django with tastypie how to refresh queryset?

Some tables in my database are updated from some background python scripts that are constantly running in the background (doing data mining). Django had a hard time knowing the data was updated...

Wordpress performance (Slow queries)

can someone help me with wp queries? Our website is slow. We noticed that there are two queries with long query time. I need to find what is using this queries. Here is queries from log: #...

Wicket LoadableDetachableModel - unnecessary detaching during ajax requests

I noticed that Wicket's LoadableDetachableModel (LDM) detaches on each request by design (via RequestCycle.processRequestAndDetach()). This may cause performance issues in particular cases and I...

Invalidating/Disabling Entity Framework cache

I see there are plenties of question on EF cache, but I have found no solution yet to my problem. ##The straight question is How do I completely disable Entity Framework 6 cache? Or, can I...

xPages don't work after design update

Load any xPage Refresh db design Reload the xPage by either F5 or Ctrl+F5. then almost all functions stop working without any errors. E.g. nothing happen if you click buttons or menu items....

RVM won't use the version of Ruby I tell it to use in new shells

Using Ubuntu 14.04. I'm trying to upgrade to Ruby 2.3.3 from 2.0.0. The installation seemed to go fine, but when I start a new terminal, it refuses to use 2.3.3. I've tried numerous fixes, but...

A strange issue with jquery/ajax not updating variables inside a function during onClick

I have a small issue which I can't seem to fix for 3 days. I don't think it is a code error but my understanding variables and why onClick event doesn't (work) properly Basically I have a page a...

Doctrine2 - @OneToOne unidirectional entity returns cascade persistence error

I have the following class: /** * @ORM\Entity(repositoryClass="Repository") * @ORM\Table(name="my_data") * @ORM\HasLifecycleCallbacks */ class Data extends ModelEntity { /** * @var integer $id ...

rails 4.2 tinyMCE gem produces failed to load content css skins/lightgray/content.min.css

I just introduced tinyMCE into my rails 4.2.8 site to let manage formatted text in articles. Everything works fine actually but now and then a warning message produced by tinyMCE comes up such as...

Delayed outgoing mail in active queue

I am stuck for some time trying to set up an email server. I've been mostly successful in my setup, but I am currently stuck at the following impasse: every time I send an email (regardless of...

Rails 5 API - controller update action sometimes does not reflect database changes (cache issue)?

I have 2 simple models in a has_many relationship. A Template has_many TemplateItems. A Template has a template_type which can be one of two values ('template' or 'checklist'). For brevity I have...

Understanding escalating load/CPU usage on high-demand server for a short period of time

We have a mySQL slave in production that gets heavy additional usage for about 1 hour 15 minutes a day. A number of temporary servers run multiple threads each with a few heavy queries involving...

In SSIS, How to lookup ID for value, if no match, insert value and return ID

With SSIS, I am loading a staged extract into its master database. Part of the process is using LOOKUP to get the ID of a string value, and if it doesn't exist, insert it into the reference table...