Re: bug: can not run Ipython notebook on cluster
What a BEAR! The following recipe worked for me. (took a couple of days hacking). I hope this improves the out of the box experience for others Andy My test program is now In [1]: from pyspark import SparkContext textFile = sc.textFile("file:///home/ec2-user/dataScience/readme.md") In [2]: print("hello world²) hello world In [3]: textFile.take(3) Out[3]: [' hello world', ''] Installation instructions 1. Ssh to cluster master 2. Sudo su 3. install python3.4 on all machines ``` yum install -y python34 bash-4.2# which python3 /usr/bin/python3 pssh -h /root/spark-ec2/slaves yum install -y python34 ``` 4. Install pip on all machines ``` yum list available |grep pip yum install -y python34-pip find /usr/bin -name "*pip*" -print /usr/bin/pip-3.4 pssh -h /root/spark-ec2/slaves yum install -y python34-pip ``` 5. install python on master ``` /usr/bin/pip-3.4 install ipython pssh -h /root/spark-ec2/slaves /usr/bin/pip-3.4 install python ``` 6. Install python develop stuff and jupiter on master ``` yum install -y python34-devel /usr/bin/pip-3.4 install jupyter ``` 7. Set up update spark-env.sh on all machine so by default we use python3.4 ``` cd /root/spark/conf printf "\n# Set Spark Python version\nexport PYSPARK_PYTHON=python3.4\n" >> /root/spark/conf/spark-env.sh for i in `cat slaves` ; do scp spark-env.sh root@$i:/root/spark/conf/spark-env.sh; done ``` 8. Restart cluster ``` /root/spark/sbin/stop-all.sh /root/spark/sbin/start-all.sh ``` Running ipython notebook 1. set up an ssh tunnel on your local machine ssh -i $KEY_FILE -N -f -L localhost::localhost:7000 ec2-user@$SPARK_MASTER 2. Log on to cluster master and start ipython notebook server ``` export PYSPARK_PYTHON=python3.4 export PYSPARK_DRIVER_PYTHON=python3.4 export IPYTHON_OPTS="notebook --no-browser --port=7000" $SPARK_ROOT/bin/pyspark --master local[2] ``` 3. On your local machine open http://localhost: From: Andrew Davidson <a...@santacruzintegration.com> Date: Friday, November 6, 2015 at 2:18 PM To: "user @spark" <user@spark.apache.org> Subject: bug: can not run Ipython notebook on cluster > Does anyone use iPython notebooks? > > I am able to use it on my local machine with spark how ever I can not get it > work on my cluster. > > > For unknown reason on my cluster I have to manually create the spark context. > My test code generated this exception > > Exception: Python in worker has different version 2.7 than that in driver 2.6, > PySpark cannot run with different minor versions > > On my mac I can solve the exception problem by setting > > export PYSPARK_PYTHON=python3 > > export PYSPARK_DRIVER_PYTHON=python3 > > IPYTHON_OPTS=notebook $SPARK_ROOT/bin/pyspark > > > > On my cluster I set the values to python2.7. And PYTHON_OPTS=³notebook > no-browser port=7000² . I connect using a ssh tunnel from my local machine. > > > > I also tried installing python 3 , pip, ipython, and jupyter in/on my cluster > > > > I tried adding export PYSPARK_PYTHON=python2.7 to the > /root/spark/conf/spark-env.sh on all my machines > > > from pyspark import SparkContext > textFile = sc.textFile("file:///home/ec2-user/dataScience/readme.md") > textFile.take(3 > > > In [1]: > from pyspark import SparkContext > sc = SparkContext("local", "Simple App") > textFile = sc.textFile("file:///home/ec2-user/dataScience/readme.md") > textFile.take(3) > ---Py4 > JJavaError Traceback (most recent call last) > in () 2 sc = SparkContext("local", > "Simple App") 3 textFile = > sc.textFile("file:///home/ec2-user/dataScience/readme.md")> 4 > textFile.take(3)/root/spark/python/pyspark/rdd.py in take(self, num) 1297 > 1298 p = range(partsScanned, min(partsScanned + numPartsToTry, > totalParts))-> 1299 res = self.context.runJob(self, > takeUpToNumLeft, p) 13001301 items += > res/root/spark/python/pyspark/context.py in runJob(self, rdd, partitionFunc, > partitions, allowLocal)914 # SparkContext#runJob.915 > mappedRDD = rdd.mapPartitions(partitionFunc)--> 916 port = > self._jvm.PythonRDD.runJob(self._jsc.sc(), mappedRDD._jrdd, partitions)917 > return list(_load_from_socket(port, mappedRDD._jrdd_deserializer))918 > /root/spark/python/lib/py4j-0.8.2.1-src.zip/py4j/java_gateway.py in > __call__(self, *args)536 answer = > self.gateway_client.send_command(command)537 return_value = > get_return_value(answer, self.gateway_client, > --> 538 self.target_id, self.n
bug: can not run Ipython notebook on cluster
Does anyone use iPython notebooks? I am able to use it on my local machine with spark how ever I can not get it work on my cluster. For unknown reason on my cluster I have to manually create the spark context. My test code generated this exception Exception: Python in worker has different version 2.7 than that in driver 2.6, PySpark cannot run with different minor versions On my mac I can solve the exception problem by setting export PYSPARK_PYTHON=python3 export PYSPARK_DRIVER_PYTHON=python3 IPYTHON_OPTS=notebook $SPARK_ROOT/bin/pyspark On my cluster I set the values to python2.7. And PYTHON_OPTS=³notebook no-browser port=7000² . I connect using a ssh tunnel from my local machine. I also tried installing python 3 , pip, ipython, and jupyter in/on my cluster I tried adding export PYSPARK_PYTHON=python2.7 to the /root/spark/conf/spark-env.sh on all my machines from pyspark import SparkContext textFile = sc.textFile("file:///home/ec2-user/dataScience/readme.md") textFile.take(3 In [1]: from pyspark import SparkContext sc = SparkContext("local", "Simple App") textFile = sc.textFile("file:///home/ec2-user/dataScience/readme.md") textFile.take(3) --- Py4JJavaError Traceback (most recent call last) in () 2 sc = SparkContext("local", "Simple App") 3 textFile = sc.textFile("file:///home/ec2-user/dataScience/readme.md") > 4 textFile.take(3) /root/spark/python/pyspark/rdd.py in take(self, num) 1297 1298 p = range(partsScanned, min(partsScanned + numPartsToTry, totalParts)) -> 1299 res = self.context.runJob(self, takeUpToNumLeft, p) 1300 1301 items += res /root/spark/python/pyspark/context.py in runJob(self, rdd, partitionFunc, partitions, allowLocal) 914 # SparkContext#runJob. 915 mappedRDD = rdd.mapPartitions(partitionFunc) --> 916 port = self._jvm.PythonRDD.runJob(self._jsc.sc(), mappedRDD._jrdd, partitions) 917 return list(_load_from_socket(port, mappedRDD._jrdd_deserializer)) 918 /root/spark/python/lib/py4j-0.8.2.1-src.zip/py4j/java_gateway.py in __call__(self, *args) 536 answer = self.gateway_client.send_command(command) 537 return_value = get_return_value(answer, self.gateway_client, --> 538 self.target_id, self.name) 539 540 for temp_arg in temp_args: /root/spark/python/lib/py4j-0.8.2.1-src.zip/py4j/protocol.py in get_return_value(answer, gateway_client, target_id, name) 298 raise Py4JJavaError( 299 'An error occurred while calling {0}{1}{2}.\n'. --> 300 format(target_id, '.', name), value) 301 else: 302 raise Py4JError( Py4JJavaError: An error occurred while calling z:org.apache.spark.api.python.PythonRDD.runJob. : org.apache.spark.SparkException: Job aborted due to stage failure: Task 0 in stage 0.0 failed 1 times, most recent failure: Lost task 0.0 in stage 0.0 (TID 0, localhost): org.apache.spark.api.python.PythonException: Traceback (most recent call last): File "/root/spark/python/lib/pyspark.zip/pyspark/worker.py", line 64, in main ("%d.%d" % sys.version_info[:2], version)) Exception: Python in worker has different version 2.7 than that in driver 2.6, PySpark cannot run with different minor versions at org.apache.spark.api.python.PythonRunner$$anon$1.read(PythonRDD.scala:166) at org.apache.spark.api.python.PythonRunner$$anon$1.(PythonRDD.scala:207) at org.apache.spark.api.python.PythonRunner.compute(PythonRDD.scala:125) at org.apache.spark.api.python.PythonRDD.compute(PythonRDD.scala:70) at org.apache.spark.rdd.RDD.computeOrReadCheckpoint(RDD.scala:297) at org.apache.spark.rdd.RDD.iterator(RDD.scala:264) at org.apache.spark.scheduler.ResultTask.runTask(ResultTask.scala:66) at org.apache.spark.scheduler.Task.run(Task.scala:88) at org.apache.spark.executor.Executor$TaskRunner.run(Executor.scala:214) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:11 42) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:6 17) at java.lang.Thread.run(Thread.java:745) Driver stacktrace: at org.apache.spark.scheduler.DAGScheduler.org$apache$spark$scheduler$DAGSchedu ler$$failJobAndIndependentStages(DAGScheduler.scala:1283) at org.apache.spark.scheduler.DAGScheduler$$anonfun$abortStage$1.apply(DAGSched uler.scala:1271) at org.apache.spark.scheduler.DAGScheduler$$anonfun$abortStage$1.apply(DAGSched uler.scala:1270) at scala.collection.mutable.ResizableArray$class.foreach(ResizableArray.scala:5 9) at scala.collection.mutable.ArrayBuffer.foreach(ArrayBuffer.scala:47) at