ipython - Zeppelin 无法启动 IPython 内核

Question

很长一段时间以来，我一直面临 Zeppelin 似乎无法启动 IPython 的问题。我跟着这个guide还有这个one . Pyspark 解释器已正确设置为正确的 python 路径，并且默认激活 IPython。但是，当我尝试运行指南中的任何示例时，例如:

%ipyspark
import pandas as pd
df = pd.DataFrame({'name':['a','b','c'], 'count':[12,24,18]})
z.show(df)

我从日志中得到以下错误，但并没有说明什么:

INFO [2018-11-30 15:17:08,653] ({pool-3-thread-2} IPythonInterpreter.java[setAdditionalPythonPath]:103) - setAdditionalPythonPath: /usr/hdp/current/spark2-client/python/lib/pyspark.zip:/usr/hdp/current/spark2-client/python/lib/py4j-0.10.7-src.zip:/usr/hdp/current/zeppelin-server/interpreter/lib/python
INFO [2018-11-30 15:17:08,654] ({pool-3-thread-2} IPythonInterpreter.java[open]:135) - Python Exec: python3
INFO [2018-11-30 15:17:09,189] ({pool-3-thread-2} IPythonInterpreter.java[checkIPythonPrerequisite]:195) - IPython prerequisite is meet
INFO [2018-11-30 15:17:09,191] ({pool-3-thread-2} IPythonInterpreter.java[open]:146) - Launching IPython Kernel at port: 39753
INFO [2018-11-30 15:17:09,191] ({pool-3-thread-2} IPythonInterpreter.java[open]:147) - Launching JVM Gateway at port: 36511
INFO [2018-11-30 15:17:09,402] ({pool-3-thread-2} IPythonInterpreter.java[setupIPythonEnv]:315) - PYTHONPATH:/usr/hdp/current/spark2-client/python/lib/pyspark.zip:/usr/hdp/current/spark2-client/python/lib/py4j-0.10.7-src.zip:/usr/hdp/current/zeppelin-server/interpreter/lib/python:/usr/hdp/current/spark2-client//python/lib/py4j-0.10.7-src.zip:/usr/hdp/current/spark2-client//python/:/usr/hdp/current/spark2-client//python:/usr/hdp/current/spark2-client//python/lib/py4j-0.8.2.1-src.zip
INFO [2018-11-30 15:17:09,743] ({pool-3-thread-2} IPythonInterpreter.java[launchIPythonKernel]:293) - Wait for IPython Kernel to be started
INFO [2018-11-30 15:17:09,844] ({pool-3-thread-2} IPythonInterpreter.java[launchIPythonKernel]:293) - Wait for IPython Kernel to be started
WARN [2018-11-30 15:17:09,926] ({Exec Default Executor} IPythonInterpreter.java[onProcessFailed]:394) - Exception happens in Python Process
org.apache.commons.exec.ExecuteException: Process exited with an error: 1 (Exit value: 1)
    at org.apache.commons.exec.DefaultExecutor.executeInternal(DefaultExecutor.java:404)
    at org.apache.commons.exec.DefaultExecutor.access$200(DefaultExecutor.java:48)
    at org.apache.commons.exec.DefaultExecutor$1.run(DefaultExecutor.java:200)
    at java.lang.Thread.run(Thread.java:745)
INFO [2018-11-30 15:17:09,944] ({pool-3-thread-2} IPythonInterpreter.java[launchIPythonKernel]:293) - Wait for IPython Kernel to be started
INFO [2018-11-30 15:17:10,044] ({pool-3-thread-2} IPythonInterpreter.java[launchIPythonKernel]:293) - Wait for IPython Kernel to be started
INFO [2018-11-30 15:17:39,465] ({pool-3-thread-2} IPythonInterpreter.java[launchIPythonKernel]:293) - Wait for IPython Kernel to be started
WARN [2018-11-30 15:17:39,466] ({pool-3-thread-2} PySparkInterpreter.java[open]:134) - Fail to open IPySparkInterpreter
java.lang.RuntimeException: Fail to open IPythonInterpreter
    at org.apache.zeppelin.python.IPythonInterpreter.open(IPythonInterpreter.java:157)
    at org.apache.zeppelin.spark.IPySparkInterpreter.open(IPySparkInterpreter.java:66)
    at org.apache.zeppelin.spark.PySparkInterpreter.open(PySparkInterpreter.java:129)
    at org.apache.zeppelin.interpreter.LazyOpenInterpreter.open(LazyOpenInterpreter.java:69)
    at org.apache.zeppelin.interpreter.remote.RemoteInterpreterServer$InterpretJob.jobRun(RemoteInterpreterServer.java:617)
    at org.apache.zeppelin.scheduler.Job.run(Job.java:188)
    at org.apache.zeppelin.scheduler.FIFOScheduler$1.run(FIFOScheduler.java:140)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
    at java.lang.Thread.run(Thread.java:745)
Caused by: java.io.IOException: Fail to launch IPython Kernel in 30 seconds
    at org.apache.zeppelin.python.IPythonInterpreter.launchIPythonKernel(IPythonInterpreter.java:297)
    at org.apache.zeppelin.python.IPythonInterpreter.open(IPythonInterpreter.java:154)
    at org.apache.zeppelin.spark.IPySparkInterpreter.open(IPySparkInterpreter.java:66)
    at org.apache.zeppelin.interpreter.LazyOpenInterpreter.open(LazyOpenInterpreter.java:69)
    at org.apache.zeppelin.interpreter.remote.RemoteInterpreterServer$InterpretJob.jobRun(RemoteInterpreterServer.java:617)
    at org.apache.zeppelin.scheduler.Job.run(Job.java:188)
    at org.apache.zeppelin.scheduler.FIFOScheduler$1.run(FIFOScheduler.java:140)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
    at java.lang.Thread.run(Thread.java:745)
INFO [2018-11-30 15:17:39,466] ({pool-3-thread-2} PySparkInterpreter.java[open]:140) - IPython is not available, use the native PySparkInterpreter   
INFO [2018-11-30 15:17:39,533] ({pool-3-thread-2} PySparkInterpreter.java[createPythonScript]:118) - File /tmp/zeppelin_pyspark-5362368451576072994.py created
INFO [2018-11-30 15:17:39,534] ({pool-3-thread-2} Py4JUtils.java[createGatewayServer]:44) - Launching GatewayServer at 127.0.0.1:34508
INFO [2018-11-30 15:17:39,565] ({pool-3-thread-2} PySparkInterpreter.java[createGatewayServerAndStartScript]:265) - pythonExec: python3
INFO [2018-11-30 15:17:39,567] ({pool-3-thread-2} PySparkInterpreter.java[setupPySparkEnv]:236) - PYTHONPATH: /usr/hdp/current/spark2-client/python/lib/pyspark.zip:/usr/hdp/current/spark2-client/python/lib/py4j-0.10.7-src.zip:/usr/hdp/current/zeppelin-server/interpreter/lib/python:/usr/hdp/current/spark2-client//python/lib/py4j-0.10.7-src.zip:/usr/hdp/current/spark2-client//python/:/usr/hdp/current/spark2-client//python:/usr/hdp/current/spark2-client//python/lib/py4j-0.8.2.1-src.zip
INFO [2018-11-30 15:17:41,953] ({pool-3-thread-2} SchedulerFactory.java[jobFinished]:115) - Job 20181129-172919_2135817500 finished by scheduler interpreter_131607019

我正在使用 Zeppelin 0.8.0 附带的 HDP3.0.1。所有节点都安装了 python 3.7.1 以及最新版本的 jupyter 和 grpcio。从 Zeppelin notebook 我检查了 ipython 和 python 版本:

%pyspark
import sys
import IPython
print(IPython.__version__)
print(sys.version)

7.2.0

3.7.1 (default, Nov 29 2018, 17:37:37)

我可以毫无问题地从任何节点启动 IPython，并且 Zeppelin 可以正确获取 IPython 的版本。我试图找到除了 Zeppelin 报告错误之外是否还有其他日志，但找不到任何东西。

知道什么会阻止 Zeppelin 启动 IPython 内核吗？

Answer 1

pip install --upgrade setuptools pip

或可能

pip install --upgrade ipython

这里还有一些其他的快速方法可以尝试 github.com/jupyter/notebook/issues/270