I remember having to do a similar thing in the spark docker scripts for testing purposes. Were you able to modify the /etc/hosts directly? I remember issues with that as docker apparently mounts it as part of its read-only filesystem.
On Tue, Jun 17, 2014 at 4:36 PM, Mohit Jaggi <[email protected]> wrote: > It was a DNS issue. AKKA apparently uses the hostname of the endpoints and > hence they need to be resolvable. In my case the hostname of the docker > container was a randomly generated string and was not resolvable. I added a > workaround (entry in etc/hosts file of spark master) for now. If anyone can > point to a more elegant solution, that would be awesome! > > > On Tue, Jun 17, 2014 at 3:48 PM, Mohit Jaggi <[email protected]> wrote: > >> I am using cutting edge code from git but doing my own sbt assembly. >> >> >> On Mon, Jun 16, 2014 at 10:28 PM, Andre Schumacher < >> [email protected]> wrote: >> >>> >>> Hi, >>> >>> are you using the amplab/spark-1.0.0 images from the global registry? >>> >>> Andre >>> >>> On 06/17/2014 01:36 AM, Mohit Jaggi wrote: >>> > Hi Folks, >>> > >>> > I am having trouble getting spark driver running in docker. If I run a >>> > pyspark example on my mac it works but the same example on a docker >>> image >>> > (Via boot2docker) fails with following logs. I am pointing the spark >>> driver >>> > (which is running the example) to a spark cluster (driver is not part >>> of >>> > the cluster). I guess this has something to do with docker's networking >>> > stack (it may be getting NAT'd) but I am not sure why (if at all) the >>> > spark-worker or spark-master is trying to create a new TCP connection >>> to >>> > the driver, instead of responding on the connection initiated by the >>> driver. >>> > >>> > I would appreciate any help in figuring this out. >>> > >>> > Thanks, >>> > >>> > Mohit. >>> > >>> > --------logs-------- >>> > >>> > Spark Executor Command: "java" "-cp" >>> > >>> "::/home/ayasdi/spark/conf:/home/xxxx/spark/assembly/target/scala-2.10/spark-assembly-1.0.0-hadoop1.0.4.jar" >>> > "-Xms2g" "-Xmx2g" "-Xms512M" "-Xmx512M" >>> > "org.apache.spark.executor.CoarseGrainedExecutorBackend" >>> > "akka.tcp://spark@fc31887475e3:43921/user/CoarseGrainedScheduler" "1" >>> > "cobalt" "24" "akka.tcp://sparkWorker@aaaa:33952/user/Worker" >>> > "app-20140616152201-0021" >>> > >>> > ======================================== >>> > >>> > >>> > log4j:WARN No appenders could be found for logger >>> > (org.apache.hadoop.conf.Configuration). >>> > >>> > log4j:WARN Please initialize the log4j system properly. >>> > >>> > log4j:WARN See http://logging.apache.org/log4j/1.2/faq.html#noconfig >>> for >>> > more info. >>> > >>> > 14/06/16 15:22:05 INFO SparkHadoopUtil: Using Spark's default log4j >>> > profile: org/apache/spark/log4j-defaults.properties >>> > >>> > 14/06/16 15:22:05 INFO SecurityManager: Changing view acls to: >>> ayasdi,root >>> > >>> > 14/06/16 15:22:05 INFO SecurityManager: SecurityManager: authentication >>> > disabled; ui acls disabled; users with view permissions: Set(xxx, xxx) >>> > >>> > 14/06/16 15:22:05 INFO Slf4jLogger: Slf4jLogger started >>> > >>> > 14/06/16 15:22:05 INFO Remoting: Starting remoting >>> > >>> > 14/06/16 15:22:06 INFO Remoting: Remoting started; listening on >>> addresses >>> > :[akka.tcp://sparkExecutor@aaaa:33536] >>> > >>> > 14/06/16 15:22:06 INFO Remoting: Remoting now listens on addresses: >>> > [akka.tcp://sparkExecutor@aaaa:33536] >>> > >>> > 14/06/16 15:22:06 INFO CoarseGrainedExecutorBackend: Connecting to >>> driver: >>> > akka.tcp://spark@fc31887475e3:43921/user/CoarseGrainedScheduler >>> > >>> > 14/06/16 15:22:06 INFO WorkerWatcher: Connecting to worker >>> > akka.tcp://sparkWorker@aaaa:33952/user/Worker >>> > >>> > 14/06/16 15:22:06 WARN Remoting: Tried to associate with unreachable >>> remote >>> > address [akka.tcp://spark@fc31887475e3:43921]. Address is now gated >>> for >>> > 60000 ms, all messages to this address will be delivered to dead >>> letters. >>> > >>> > 14/06/16 15:22:06 ERROR CoarseGrainedExecutorBackend: Driver >>> Disassociated >>> > [akka.tcp://sparkExecutor@aaaa:33536] -> >>> [akka.tcp://spark@fc31887475e3:43921] >>> > disassociated! Shutting down. >>> > >>> >>> >> >
