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From Josh Elser <josh.el...@gmail.com>
Subject Re: same token couldn't authenticate twice?
Date Fri, 12 Jun 2015 15:34:11 GMT
Just be careful with the mapreduce classes. I wouldn't be surprised if 
we try to avoid any locally installed client.conf in MapReduce (using 
only the ClientConfiguration stored inside the Job).

Will wait to hear back from you :)

Xu (Simon) Chen wrote:
> Emm.. I have ~/.accumulo/config with "instance.rpc.sasl.enabled=true".
> That property is indeed populated to ClientConfiguration the first time
> - that's why I said the token worked initially.
>
> Apparently, in the Hadoop portion that property is not set, as I added
> some debug message to ZooKeeperInstance class. I think that's likely the
> issue.
>
> So the zookeeper instance is created in the following sequence:
> https://github.com/apache/accumulo/blob/master/core/src/main/java/org/apache/accumulo/core/client/mapred/AbstractInputFormat.java#L341
> https://github.com/apache/accumulo/blob/master/core/src/main/java/org/apache/accumulo/core/client/mapreduce/lib/impl/InputConfigurator.java#L671
> https://github.com/apache/accumulo/blob/master/core/src/main/java/org/apache/accumulo/core/client/mapreduce/lib/impl/ConfiguratorBase.java#L361
>
> The getClientConfiguration function calls getDefaultSearchPath()
> eventually, so my ~/.accumulo/config should be searched. I think we are
> close to the root cause... Will update when I find out more.
>
> Thanks!
> -Simon
>
> On Thu, Jun 11, 2015 at 11:28 PM, Josh Elser <josh.elser@gmail.com> wrote:
>  > Are you sure that the spark tasks have the proper
> ClientConfiguration? They
>  > need to have instance.rpc.sasl.enabled. I believe you should be able
> to set
>  > this via the AccumuloInputFormat
>  >
>  > You can turn up logging org.apache.accumulo.core.client=TRACE and/or
> set the
>  > system property -Dsun.security.krb5.debug=true to get some more
> information
>  > as to why the authentication is failing.
>  >
>  >
>  > Xu (Simon) Chen wrote:
>  >>
>  >> Josh,
>  >>
>  >> I am using this function:
>  >>
>  >>
>  >>
> https://github.com/apache/accumulo/blob/master/core/src/main/java/org/apache/accumulo/core/client/mapred/AbstractInputFormat.java#L106
>  >>
>  >> If I pass in a KerberosToken, it's stuck at line 111; if I pass in a
>  >> delegation token, the setConnectorInfo function finishes fine.
>  >>
>  >> But when I do something like queryRDD.count, spark eventually calls
>  >> HadoopRDD.getPartitions, which calls the following and get stuck in
>  >> the last authenticate() function:
>  >>
>  >>
> https://github.com/apache/accumulo/blob/master/core/src/main/java/org/apache/accumulo/core/client/mapred/AbstractInputFormat.java#L621
>  >>
>  >>
> https://github.com/apache/accumulo/blob/master/core/src/main/java/org/apache/accumulo/core/client/mapred/AbstractInputFormat.java#L348
>  >>
>  >>
> https://github.com/apache/accumulo/blob/master/core/src/main/java/org/apache/accumulo/core/client/ZooKeeperInstance.java#L248
>  >>
>  >>
> https://github.com/apache/accumulo/blob/master/core/src/main/java/org/apache/accumulo/core/client/impl/ConnectorImpl.java#L70
>  >>
>  >> Which essentially the same place where it would be stuck with
>  >> KerberosToken.
>  >>
>  >> -Simon
>  >>
>  >> On Thu, Jun 11, 2015 at 9:41 PM, Josh Elser<josh.elser@gmail.com>
> wrote:
>  >>>
>  >>> What are the Accumulo methods that you are calling and what is the
> error
>  >>> you
>  >>> are seeing?
>  >>>
>  >>> A KerberosToken cannot be used in a MapReduce job which is why a
>  >>> DelegationToken is automatically retrieved. You should still be able to
>  >>> provide your own DelegationToken -- if that doesn't work, that's a bug.
>  >>>
>  >>> Xu (Simon) Chen wrote:
>  >>>>
>  >>>> I actually added a flag such that I can pass in either a KerberosToken
>  >>>> or a DelegationTokenImpl to accumulo.
>  >>>>
>  >>>> Actually when a KerberosToken is passed in, accumulo converts it to
a
>  >>>> DelegationToken - the conversion is where I am having trouble. I tried
>  >>>> passing in a delegation token directly to bypass the conversion, but
a
>  >>>> similar problem happens, that I am stuck at authenticate on the client
>  >>>> side, and server side outputs the same output...
>  >>>>
>  >>>> On Thursday, June 11, 2015, Josh Elser<josh.elser@gmail.com
>  >>>> <mailto:josh.elser@gmail.com>>  wrote:
>  >>>>
>  >>>>      Keep in mind that the authentication path for DelegationToken
>  >>>>      (mapreduce) and KerberosToken are completely different.
>  >>>>
>  >>>>      Since most mapreduce jobs have multiple mappers (or reducers),
I
>  >>>>      expect we would have run into the case that the same
>  >>>> DelegationToken
>  >>>>      was used multiple times. It would still be good to narrow
> down the
>  >>>>      scope of the problem.
>  >>>>
>  >>>>      Xu (Simon) Chen wrote:
>  >>>>
>  >>>>          Thanks Josh...
>  >>>>
>  >>>>          I tested this in scala REPL, and called
>  >>>>          DataStoreFinder.getDataStore()
>  >>>>          multiple times, each time it seems to be reusing the same
>  >>>>          KerberosToken object, and it works fine each time.
>  >>>>
>  >>>>          So my problem only happens when the token is used in
> accumulo's
>  >>>>          mapred
>  >>>>          package. Weird..
>  >>>>
>  >>>>          -Simon
>  >>>>
>  >>>>
>  >>>>          On Thu, Jun 11, 2015 at 5:29 PM, Josh
>  >>>>          Elser<josh.elser@gmail.com>   wrote:
>  >>>>
>  >>>>              Simon,
>  >>>>
>  >>>>              Can you reproduce this in plain-jane Java code? I don't
>  >>>> know
>  >>>>              enough about
>  >>>>              spark/scala, much less what Geomesa is actually do,
> to know
>  >>>>              what the issue
>  >>>>              is.
>  >>>>
>  >>>>              Also, which token are you referring to: A
> KerberosToken or
>  >>>> a
>  >>>>              DelegationToken? Either of them should be usable as many
>  >>>>              times as you'd like
>  >>>>              (given the underlying credentials are still available
for
>  >>>> KT
>  >>>>              or the DT token
>  >>>>              hasn't yet expired).
>  >>>>
>  >>>>
>  >>>>              Xu (Simon) Chen wrote:
>  >>>>
>  >>>>                  Folks,
>  >>>>
>  >>>>                  I am working on geomesa+accumulo+spark
> integration. For
>  >>>>                  some reason, I
>  >>>>                  found that the same token cannot be used to
>  >>>> authenticate
>  >>>>                  twice.
>  >>>>
>  >>>>                  The workflow is that geomesa would try to create a
>  >>>>                  hadoop rdd, during
>  >>>>                  which it tries to create an AccumuloDataStore:
>  >>>>
>  >>>>
>  >>>>
>  >>>>
> https://github.com/locationtech/geomesa/blob/master/geomesa-compute/src/main/scala/org/locationtech/geomesa/compute/spark/GeoMesaSpark.scala#L81
>  >>>>
>  >>>>                  During this process, a ZooKeeperInstance is created:
>  >>>>
>  >>>>
>  >>>>
>  >>>>
> https://github.com/locationtech/geomesa/blob/rc7_a1.7_h2.5/geomesa-core/src/main/scala/org/locationtech/geomesa/core/data/AccumuloDataStoreFactory.scala#L177
>  >>>>                  I modified geomesa such that it would use kerberos
to
>  >>>>                  authenticate
>  >>>>                  here. This step works fine.
>  >>>>
>  >>>>                  But next, geomesa calls
>  >>>> ConfigurationBase.setConnectorInfo:
>  >>>>
>  >>>>
>  >>>>
>  >>>>
> https://github.com/locationtech/geomesa/blob/rc7_a1.7_h2.5/geomesa-compute/src/main/scala/org/locationtech/geomesa/compute/spark/GeoMesaSpark.scala#L69
>  >>>>
>  >>>>                  This is using the same token and the same zookeeper
>  >>>> URI,
>  >>>>                  for some
>  >>>>                  reason it is stuck on spark-shell, and the
> following is
>  >>>>                  outputted on
>  >>>>                  tserver side:
>  >>>>
>  >>>>                  2015-06-06 18:58:19,616 [server.TThreadPoolServer]
>  >>>>                  ERROR: Error
>  >>>>                  occurred during processing of message.
>  >>>>                  java.lang.RuntimeException:
>  >>>>                  org.apache.thrift.transport.TTransportException:
>  >>>> java.net
> <http://java.net><http://java.net>.SocketTimeoutException: Read
>  >>>>
>  >>>>                  timed out
>  >>>>                             at
>  >>>>
>  >>>>
>  >>>>
> org.apache.thrift.transport.TSaslServerTransport$Factory.getTransport(TSaslServerTransport.java:219)
>  >>>>                             at
>  >>>>
>  >>>>
>  >>>>
> org.apache.accumulo.core.rpc.UGIAssumingTransportFactory$1.run(UGIAssumingTransportFactory.java:51)
>  >>>>                             at
>  >>>>
>  >>>>
>  >>>>
> org.apache.accumulo.core.rpc.UGIAssumingTransportFactory$1.run(UGIAssumingTransportFactory.java:48)
>  >>>>                             at
>  >>>>                  java.security.AccessController.doPrivileged(Native
>  >>>> Method)
>  >>>>                             at
>  >>>>                  javax.security.auth.Subject.doAs(Subject.java:356)
>  >>>>                             at
>  >>>>
>  >>>>
>  >>>>
> org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1622)
>  >>>>                             at
>  >>>>
>  >>>>
>  >>>>
> org.apache.accumulo.core.rpc.UGIAssumingTransportFactory.getTransport(UGIAssumingTransportFactory.java:48)
>  >>>>                             at
>  >>>>
>  >>>>
>  >>>>
> org.apache.thrift.server.TThreadPoolServer$WorkerProcess.run(TThreadPoolServer.java:208)
>  >>>>                             at
>  >>>>
>  >>>>
>  >>>>
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
>  >>>>                             at
>  >>>>
>  >>>>
>  >>>>
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
>  >>>>                             at
>  >>>>
>  >>>>
>  >>>>
> org.apache.accumulo.fate.util.LoggingRunnable.run(LoggingRunnable.java:35)
>  >>>>                             at java.lang.Thread.run(Thread.java:745)
>  >>>>                  Caused by:
>  >>>> org.apache.thrift.transport.TTransportException:
>  >>>> java.net
> <http://java.net><http://java.net>.SocketTimeoutException: Read
>  >>>>                  timed out
>  >>>>                             at
>  >>>>
>  >>>>
>  >>>>
> org.apache.thrift.transport.TIOStreamTransport.read(TIOStreamTransport.java:129)
>  >>>>                             at
>  >>>>
>  >>>> org.apache.thrift.transport.TTransport.readAll(TTransport.java:84)
>  >>>>                             at
>  >>>>
>  >>>>
>  >>>>
> org.apache.thrift.transport.TSaslTransport.receiveSaslMessage(TSaslTransport.java:182)
>  >>>>                             at
>  >>>>
>  >>>>
>  >>>>
> org.apache.thrift.transport.TSaslServerTransport.handleSaslStartMessage(TSaslServerTransport.java:125)
>  >>>>                             at
>  >>>>
>  >>>>
> org.apache.thrift.transport.TSaslTransport.open(TSaslTransport.java:253)
>  >>>>                             at
>  >>>>
>  >>>>
>  >>>>
> org.apache.thrift.transport.TSaslServerTransport.open(TSaslServerTransport.java:41)
>  >>>>                             at
>  >>>>
>  >>>>
>  >>>>
> org.apache.thrift.transport.TSaslServerTransport$Factory.getTransport(TSaslServerTransport.java:216)
>  >>>>                             ... 11 more
>  >>>>                  Caused by: java.net <http://java.net>
>  >>>> <http://java.net>.SocketTimeoutException: Read timed
>  >>>> out
>  >>>>                             at
>  >>>>                  java.net.SocketInputStream.socketRead0(Native Method)
>  >>>>                             at
>  >>>>
>  >>>> java.net.SocketInputStream.read(SocketInputStream.java:152)
>  >>>>                             at
>  >>>>
>  >>>> java.net.SocketInputStream.read(SocketInputStream.java:122)
>  >>>>                             at
>  >>>>
>  >>>> java.io.BufferedInputStream.read1(BufferedInputStream.java:273)
>  >>>>                             at
>  >>>>
>  >>>> java.io.BufferedInputStream.read(BufferedInputStream.java:334)
>  >>>>                             at
>  >>>>
>  >>>>
>  >>>>
> org.apache.thrift.transport.TIOStreamTransport.read(TIOStreamTransport.java:127)
>  >>>>                             ... 17 more
>  >>>>
>  >>>>                  Any idea why?
>  >>>>
>  >>>>                  Thanks.
>  >>>>                  -Simon
>  >>>>
>  >
>

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