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Memcache(d) vs. Varnish for speeding up 3 tier web architecture
... write -- Varnish will serve a lot of the pages for you, Memcache will provide info for pages that have a mixture of known and new data allowing you to generate pages faster.
An example that could apply to stackoverflow.com: adding this comment invalidated the page cache, so this page would have t...
Python argparse command line flags without arguments
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@Jdog, Any idea of why this doesn't work for me? The w is always False.
– Iulian Onofrei
Apr 12 '15 at 21:27
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Are PostgreSQL column names case-sensitive?
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All identifiers (including column names) that are not double-quoted are folded to lower case in PostgreSQL. Column names that were created with double-quotes and thereby retained upper-case letters (and/or other syntax violations...
Compare two Byte Arrays? (Java)
..., which of course can never be true. In addition, array classes don't override .equals() so the behavior is that of Object.equals() which also only compares the reference values.
To compare the contents of two arrays, static array comparison methods are provided by the Arrays class
byte[] array =...
Define static method in source-file with declaration in header-file in C++
... methods in that class can access that static method, no other methods outside that class.
– ABV
May 12 '11 at 15:42
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Delete Local Folder in TFS
...ht choose to do this to conserve space on your local disk. If you later decide that you need to get files in those cloaked folders, you must change the status to Active and then perform a Get operation.
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Split string using a newline delimiter with Python
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Just to be on the safer side use .splitlines, what if the strings have spaces, etc.
– Ashwini Chaudhary
Feb 26 '14 at 13:33
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JavaScript error (Uncaught SyntaxError: Unexpected end of input)
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This error is mainly caused by empty returned ajax calls, when trying to parse an empty JSON.
To solve this test if the returned data is empty
$.ajax({
url: url,
type: "get",
dataType: "json",
success: function (response) {
if(response.data.length...
How can i get the session object if i have the entity-manager
...ction "5.1. Accessing Hibernate APIs from JPA" in the Hibernate ORM User Guide:
Session session = entityManager.unwrap(Session.class);
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How can I obtain an 'unbalanced' grid of ggplots?
With grid.arrange I can arrange multiple ggplot figures in a grid to achieve a multi-panel figure by using something like:
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