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Explaining Apache ZooKeeper
...ersisted data is distributed between multiple nodes (this set of nodes is called an "ensemble") and one client connects to any of them (i.e., a specific "server"), migrating if one node fails; as long as a strict majority of nodes are working, the ensemble of ZooKeeper nodes is alive. In particular,...
Handle file download from ajax post
...ent). I can easily detect Content-Type and Content-Disposition in my ajax call, but once I detect that the response contains a file, how do I offer the client to download it? I've read a number of similar threads here but none of them provide the answer I'm looking for.
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What is the recommended batch size for SqlBulkCopy?
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As others have stated, it depends on your environment specifically the row volume and network latency.
Personally, I'd start with setting the BatchSize property to 1000 rows and see how that performs. If it works, then I keep doubling the number of rows (e.g. to 2000, 4000, etc.) unti...
Haskell: Where vs. Let
...s of the function f (there are none) and things in outer scopes." - That really helps clarify it for me.
– user295190
Dec 6 '10 at 3:18
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How can I convert a PFX certificate file for use with Apache on a linux server?
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Additionally to
openssl pkcs12 -in domain.pfx -clcerts -nokeys -out domain.cer
openssl pkcs12 -in domain.pfx -nocerts -nodes -out domain.key
I also generated Certificate Authority (CA) certificate:
openssl pkcs12 -in domain.pfx...
java: Class.isInstance vs Class.isAssignableFrom
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Both answers are in the ballpark but neither is a complete answer.
MyClass.class.isInstance(obj) is for checking an instance. It returns true when the parameter obj is non-null and can be cast to MyClass without raising a ClassCastException. In ot...
How to use an existing database with an Android application [duplicate]
...th();
which will give us the full path to the database file and works on all Android versions
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How to obtain the start time and end time of a day?
...es the first moment of the day as seen on that date in that time zone. Not all days start at 00:00!
ZoneId.of( "Asia/Tokyo" )
) // Returns a `ZonedDateTime` object.
Start of day
Get the full length of the today as seen in a time zone.
Using Half-Open approach, whe...
Why sizeof int is wrong, while sizeof(int) is right?
...ans If we start trying to justify every decision made in C99 we'll be here all year. Quoting the standard is as good a way as any to wrap up this discussion.
– Perry
Oct 30 '12 at 18:50
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WPF Data Binding and Validation Rules Best Practices
I have a very simple WPF application in which I am using data binding to allow editing of some custom CLR objects. I am now wanting to put some input validation in when the user clicks save. However, all the WPF books I have read don't really devote any space to this issue. I see that you can create...