Re: Contribution in java

[Koert Kuipers]

yes it does. although the core of spark is written in scala it also
maintains java and python apis, and there is plenty of work for those to
contribute to.

On Sat, Dec 20, 2014 at 7:30 AM, sreenivas putta putta.sreeni...@gmail.com
wrote:

 Hi,

 I want to contribute for spark in java. Does it support java? please let me
 know.

 Thanks,
 Sreenivas

Re: Contribution in java

[vaquar khan]

Hi Sreenivas,

Please read Spark doc first, everything mention in doc , without reading
doc how can you contribute ?

regards,
vaquar khan

On Sat, Dec 20, 2014 at 6:00 PM, sreenivas putta putta.sreeni...@gmail.com
wrote:

 Hi,

 I want to contribute for spark in java. Does it support java? please let me
 know.

 Thanks,
 Sreenivas




-- 
Regards,
Vaquar Khan
+91 830-851-1500

Re: EndpointWriter : Dropping message failure ReliableDeliverySupervisor errors...

[jay vyas]

Hi folks.

In the end, I found that the problem was that I was using IP Addresses
instead of hostnames.

I guess, maybe,  reverse dns is a requirement for spark slave - master
communications...  ?



On Fri, Dec 19, 2014 at 7:21 PM, jay vyas jayunit100.apa...@gmail.com
wrote:

 Hi spark.   Im trying to understand the akka debug messages when
 networking doesnt work properly.  any hints would be great on this.

 SIMPLE TESTS I RAN

 - i tried a ping, works.
 - i tried a telnet to the 7077 port of master, from slave, also works.

 LOGS

 1) On the master I see this WARN log buried:

 ReliableDeliverySupervisor: Association with remote system
 [akka.tcp://sparkWorker@s2.docker:45477] has failed, address is now gated
 for [500] ms  Reason is: [Disassociated].

 2) I also see a periodic, repeated ERROR message :

  ERROR EndpointWriter: dropping message [class
 akka.actor.ActorSelectionMessage] for non-local recipient [Actor[akka.tcp://
 sparkMaster@172.17.0.12:7077


 Any idea what these folks mean?   From what i can tel, i can telnet from
 s2.docker to my master server.

 Any thoughts for more debugging of this would be appreciated! im out of
 ideas for the time being 

 --
 jay vyas




-- 
jay vyas