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https://issues.apache.org/jira/browse/SPARK-10635?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Ben Duffield updated SPARK-10635:
---------------------------------
Description:
At various points we assume we only ever talk to a driver on the same host.
e.g.
https://github.com/apache/spark/blob/v1.4.1/core/src/main/scala/org/apache/spark/api/python/PythonRDD.scala#L615
We use pyspark to connect to an existing driver (i.e. do not let pyspark launch
the driver itself, but instead construct the SparkContext with the gateway and
jsc arguments.
There are a few reasons for this, but essentially it's to allow more
flexibility when running in AWS.
Before 1.3.1 we were able to monkeypatch around this:
{code}
def _load_from_socket(port, serializer):
sock = socket.socket()
sock.settimeout(3)
try:
sock.connect((host, port))
rf = sock.makefile("rb", 65536)
for item in serializer.load_stream(rf):
yield item
finally:
sock.close()
pyspark.rdd._load_from_socket = _load_from_socket
{/code}
was:
At various points we assume we only ever talk to a driver on the same host.
e.g.
https://github.com/apache/spark/blob/v1.4.1/core/src/main/scala/org/apache/spark/api/python/PythonRDD.scala#L615
We use pyspark to connect to an existing driver (i.e. do not let pyspark launch
the driver itself, but instead construct the SparkContext with the gateway and
jsc arguments.
There are a few reasons for this, but essentially it's to allow more
flexibility when running in AWS.
Before 1.3.1 we were able to monkeypatch around this:
def _load_from_socket(port, serializer):
sock = socket.socket()
sock.settimeout(3)
try:
sock.connect((host, port))
rf = sock.makefile("rb", 65536)
for item in serializer.load_stream(rf):
yield item
finally:
sock.close()
pyspark.rdd._load_from_socket = _load_from_socket
> pyspark - running on a different host
> -------------------------------------
>
> Key: SPARK-10635
> URL: https://issues.apache.org/jira/browse/SPARK-10635
> Project: Spark
> Issue Type: Improvement
> Reporter: Ben Duffield
>
> At various points we assume we only ever talk to a driver on the same host.
> e.g.
> https://github.com/apache/spark/blob/v1.4.1/core/src/main/scala/org/apache/spark/api/python/PythonRDD.scala#L615
> We use pyspark to connect to an existing driver (i.e. do not let pyspark
> launch the driver itself, but instead construct the SparkContext with the
> gateway and jsc arguments.
> There are a few reasons for this, but essentially it's to allow more
> flexibility when running in AWS.
> Before 1.3.1 we were able to monkeypatch around this:
> {code}
> def _load_from_socket(port, serializer):
> sock = socket.socket()
> sock.settimeout(3)
> try:
> sock.connect((host, port))
> rf = sock.makefile("rb", 65536)
> for item in serializer.load_stream(rf):
> yield item
> finally:
> sock.close()
> pyspark.rdd._load_from_socket = _load_from_socket
> {/code}
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