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From Scott Reynolds <sreyno...@twilio.com>
Subject s3a file system and spark deployment mode
Date Thu, 15 Oct 2015 18:04:34 GMT
List,

Right now we build our spark jobs with the s3a hadoop client. We do this
because our machines are only allowed to use IAM access to the s3 store. We
can build our jars with the s3a filesystem and the aws sdk just fine and
this jars run great in *client mode*.

We would like to move from client mode to cluster mode as that will allow
us to be more resilient to driver failure. In order to do this either:
1. the jar file has to be on worker's local disk
2. the jar file is in shared storage (s3a)

We would like to put the jar file in s3 storage, but when we give the jar
path as s3a://......, the worker node doesn't have the hadoop s3a and aws
sdk in its classpath / uber jar.

Other then building spark with those two dependencies, what other options
do I have ? We are using 1.5.1 so SPARK_CLASSPATH is no longer a thing.

Need to get s3a access to both the master (so that we can log spark event
log to s3) and to the worker processes (driver, executor).

Looking for ideas before just adding the dependencies to our spark build
and calling it a day.

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