Details
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Bug
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Status: Open
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Major
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Resolution: Unresolved
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0.5.0, 0.6.0
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None
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None
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Red Hat Enterprise Linux Server release 7.3 (Maipo)
java version "1.8.0_141"
Description
I have the following code:
from livy.client import HttpClient def foobar(ctx): return ctx.sc.parallelize(range(101)).mean() client = HttpClient('http://r2i0n33:8998') try: print(client.submit(foobar).result()) except Exception as e: print(e) print(client.submit(foobar).result()) client.stop(True)
failing with the following error:
org.apache.livy.shaded.kryo.kryo.KryoException: Encountered unregistered class ID: 510 org.apache.livy.shaded.kryo.kryo.util.DefaultClassResolver.readClass(DefaultClassResolver.java:119) org.apache.livy.shaded.kryo.kryo.Kryo.readClass(Kryo.java:656) org.apache.livy.shaded.kryo.kryo.Kryo.readClassAndObject(Kryo.java:767) org.apache.livy.client.common.Serializer.deserialize(Serializer.java:63) org.apache.livy.rsc.driver.BypassJob.call(BypassJob.java:39) org.apache.livy.rsc.driver.BypassJob.call(BypassJob.java:27) org.apache.livy.rsc.driver.JobWrapper.call(JobWrapper.java:57) org.apache.livy.rsc.driver.BypassJobWrapper.call(BypassJobWrapper.java:42) org.apache.livy.rsc.driver.BypassJobWrapper.call(BypassJobWrapper.java:27) java.util.concurrent.FutureTask.run(FutureTask.java:266) java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) java.lang.Thread.run(Thread.java:748) 50.0
Is this to be expected? I would have thought that the first submission should work already. I did not find this behavior online/in the mailing list archives. Any pointers how to resolve this?
This happens in both the livy-0.5.0 binaries and the github master, on RedHat EL 7.3.