Hello again,
As Tom and Matthew suggested I wrote my own custom vertex value class and input
format class. I followed Matthew's example to create my own custom vertex class
but now I'm getting the following error while running the program
java.lang.IllegalStateException: newInstance: Illegal
Hi, all--
In my algorithm, I need to set a flag if certain conditions hold (locally at a
vertex v). If this flag is set then execute some other block of code *only
once*, and do nothing until some other condition is hold.
My question is, can I declare a flag variable in the class where I
And in answer of :
This post also suggests (along with what I described above) to have a field in
the vertex value itself. For that I need to change the vertex input format and
also create my own custom vertex class. Is it really necessary?
No, you don't need a custom vertex class or vertex
Thank you Tom for your prompt reply.
If that is the case then I might be doing something wrong. I'll take a closer
look with debug enabled and keep you posted.
Thank you again.
Vivek
From: Schweiger, Tom thschwei...@ebay.com
Sent: Monday, July 21, 2014 4:37
Tom,
If it's necessary to store more than one flag though, for example, won't a
custom class be necessary? I'm a beginner too, so I apologize if I'm
incorrect about that. Just to be clarify, to keep persistent data for a
vertex from one superstep to the next, it is necessary to encapsulate it in
For more than one flag, a custom class is necessary (unless you're able to,
say, toggle the sign bit to get double usage out or a value).
I've started a private thread with Vivek to get a better understanding of what
he was trying to solve.
And you are also correct that there isn't much to
Yeah, that's true. Sorry I forgot that part. Luckily, it isn't too tricky
either, depending on the input format of your graph. Here's another example
https://gist.github.com/saltzm/ab7172c57dec927061be to get you started,
for a very simple input format for edges with no values. I basically took
