gomap | MapReduce workloads as a single binary
kandi X-RAY | gomap Summary
kandi X-RAY | gomap Summary
Run your MapReduce workloads as a single binary on a single machine with multiple CPUs and high memory. Pricing of a lot of small machines vs heavy machines is the same on most cloud providers.
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Top functions reviewed by kandi - BETA
- runFile runs the step in parallel
- Example for S3
- handleReduceSync is used to perform a reduce operation
- copySteps returns a shallow copy of the dataset .
- Read a single record
- NewS3 returns a new S3 object .
- getUserdata returns the userdata
- NewSpotInstance creates a new SpotInstance
- newKeyValueBufferWriter creates a new key - value pair writer from the config .
- GetBucketRegion returns the region of the given bucket name .
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Trending Discussions on gomap
QUESTION
Trying to implement go map, with below code:
...ANSWER
Answered 2020-Apr-13 at 10:57Map
m is of type []Map, so m[bucketNumber] will be of type Map, not bucket.
Change type of m to *Map and dereference when used:
QUESTION
I have this href.
...ANSWER
Answered 2020-Feb-26 at 10:57 onclick="getLastVesselPosition($(this).attr("id"))">
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QUESTION
I'm trying to call Go from c++. My code operates on maps, and I can't seem to make maps work with cgo.
main.go:
...ANSWER
Answered 2020-Feb-17 at 16:47You can't. In fact, you can't really do anything with this type with cgo due to the pointer-passing rules that allow cgo to work safely with Go's concurrency and garbage collector. Maps are on the list of types that "always include Go pointers", and therefore maps can't be passed as arguments to C functions, returned from Go functions that are called by C code, or stored by C.
It's hard to give a recommendation on what you should do without seeing more of what you're trying to accomplish, but the usual workaround for this is to have the Go code hold objects in a map, and pass the C code a key from that map (as e.g. a C string or int, which can be passed or stored freely) as a handle to the object contained within. C then does all of its interaction with the objects through Go functions, which can use the key to find the correct value in the map. A slice would work too.
QUESTION
I have a Java program that is using JNA to call a Go Func. Here's the Interface to the Go func in Java:
...ANSWER
Answered 2018-Apr-05 at 16:25Your const char * in _GoString_ should use a Pointer instead, then use Pointer.getString() with the provided offset to obtain the actual string.
If Go itself is rejecting a string return value, you'll likely have to instead populate a buffer provided by the caller.
QUESTION
I have a view controller with a container view which contains a static UITableViewController as a menu. The parent view controller is part of a UIPageViewController.
Whenever the user clicks a row I want to call a function to perform a segue from the PageViewController. To do this, I added didSelectRowAt inside of the MenuTableViewController. - This function works fine, since print requests are being executed.
To call a function from the PageViewController, I tried to use delegate, but somehow the function won't be executed.
- RootPageViewController:
ANSWER
Answered 2019-May-25 at 18:02This is how you should use delegate:
MenuTableViewController
QUESTION
I followed the tutorial in https://medium.com/learning-the-go-programming-language/calling-go-functions-from-other-languages-4c7d8bcc69bf to make my node app able to call golang function. The provided example works like a charm.
I do, however, unable it to implement in another scenario. Here I want to open a file by providing only it's absolute path and call the Go's function, but it always told me that it can't find the file due to no such file. I'm trying to run it directly in Go and it works!
Am I doing it wrong or is it an actual bug/unfinished feature?
Here is the golang source that I've built to c-style lib :
...ANSWER
Answered 2018-Nov-20 at 18:22Remember that strings in Go are like slices. They are composed of a pointer to the backing data and the length. This is why in your code, GoString is defined as:
QUESTION
being a shiny newcomer myself, I struggle with adapting an example code to my particular dataset. My dataset is a "development subset" of the yelp dataset challenge.
My goal is to create a scatter plot of "stars" vs "number of reviews" of the restaurants in the current map section.
What I got: a map that shows markers for restaurants as well as a working filter to count the visible restaurants as debug message in the console.
My problem:
...ANSWER
Answered 2018-Jan-15 at 09:55To check where it went wrong, I made some print()statements in your code for making the xy-plot, for example print(colnames(restaurantsInBounds())). It turns out that the colnames are
QUESTION
Here is my code:
helloworld.go:
...ANSWER
Answered 2017-Nov-09 at 02:19QUESTION
Creating named vector where names are associated to GO id from a csv file did not work.
...ANSWER
Answered 2017-Sep-19 at 06:32If you want a vector as result, maybe you could try to coerce your values and names (column 1) to character.
QUESTION
I want to use Geo location, but there is $ is not defined google maps. the code is as below:
...ANSWER
Answered 2017-Apr-29 at 11:15That error can only be caused by one of three things:
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