I think the code is the only documentation. A Writable is just something
that has a readFrom and a writeTo method, the contents of these methods can
be essentially arbitrary.
Best,
Andrew
On Sun, Mar 23, 2014 at 7:43 PM, Dhaivat Pandya wrote:
> Another question: is there some kind of documentat
Another question: is there some kind of documentation (other than the code)
that specifies the kind of serialization algorithm Writables use? I think I
may have to port the concept over to another language.
Thanks,
Dhaivat
On Sun, Mar 23, 2014 at 9:11 AM, Dhaivat Pandya wrote:
> Thank you very
Thank you very much, Andrew.
On Sat, Mar 22, 2014 at 7:02 PM, Andrew Wang wrote:
> Hi Dhaivat,
>
> Take a look at DatanodeRegistration and it's parent class DatanodeID. DR is
> a Writable, meaning it's a custom serialization format. Hadoop 2 uses
> protobuf for the RPC serialization rather than
Hi Dhaivat,
Take a look at DatanodeRegistration and it's parent class DatanodeID. DR is
a Writable, meaning it's a custom serialization format. Hadoop 2 uses
protobuf for the RPC serialization rather than writables (with the
exception of DN data transfer).
https://github.com/apache/hadoop-common/
Hi everyone,
I'm currently working on an application that requires some important
details about the DataNode registration (w/ NameNode) procedure.
Specifically, I have understood (after Wireshark-ing and looking through
the Hadoop code) that the DataNode is registered with the NameNode using a
si
