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From YunHee Kang <yunh.k...@gmail.com>
Subject Re: The problem occurred when downloading a file by using a protocol "sftp" in pushpull
Date Mon, 06 Aug 2012 16:30:21 GMT
Hi Chris,

Yes, I will  do that.

Thanks,
Yunhee

2012/8/7 Mattmann, Chris A (388J) <chris.a.mattmann@jpl.nasa.gov>:
> Hi YunHee,
>
> Great job. Can you please file a JIRA issue for this and upload
> a patch file?
>
> Thank you!
>
> Cheers,
> Chris
>
> On Aug 6, 2012, at 1:28 AM, YunHee Kang wrote:
>
>> Hi Brian,
>>
>> I just have fixed  the problem I had related with sftp protocol in
>> pushpull framework.
>> To fix it, I just added the following statement in the method
>> connect() in the file JschSftpProtocol.java.
>> session.setConfig("StrictHostKeyChecking", "no");
>>
>> You can get more details about the above statement  in the following:
>> http://www.mail-archive.com/jsch-users@lists.sourceforge.net/msg00393.html
>>
>> Thanks,
>> Yunhee
>>
>>
>>
>>
>> 2012/8/6 YunHee Kang <yunh.kang@gmail.com>:
>>> Hi Brian,
>>>
>>> I tried to download a file with sftp protocol in pushpull framework
>>> and got two warnings and a severe error message as follows:
>>> WARNING: Error occurred while connecting to RemoteSite: alias =
>>> 'SCPTESL2CO2'  url = 'sftp://agent.bu.ac.kr'  username = 'yhkang'
>>> cdTestDir = 'null' maxConnections = '-1' : Failed to connect to host
>>> agent.bu.ac.kr : reject HostKey: agent.bu.ac.kr
>>> Aug 6, 2012 2:13:48 PM
>>> org.apache.oodt.cas.pushpull.protocol.ProtocolHandler
>>> getAppropriateProtocolBySite
>>> WARNING: ProtocolFactory
>>> org.apache.oodt.cas.protocol.sftp.JschSftpProtocolFactory is not
>>> compatible with server at sftp://agent.bu.ac.kr
>>> Aug 6, 2012 2:13:48 PM
>>> org.apache.oodt.cas.pushpull.retrievalsystem.RetrievalSetup
>>> retrieveFiles
>>> SEVERE: Failed to finish downloading per property files
>>> /home/yhkang/oodt-0.5/cas-pushpull/etc/examples/DirStructXmlParserFiles/SCPTESL2CO2.xml
>>> : Failed to get appropriate protocol for RemoteSite: alias =
>>> 'SCPTESL2CO2'  url = 'sftp://agent.bu.ac.kr'  username = 'yhkang'
>>> cdTestDir = 'null' maxConnections = '-1'
>>> org.apache.oodt.cas.protocol.exceptions.ProtocolException: Failed to
>>> get appropriate protocol for RemoteSite: alias = 'SCPTESL2CO2'  url =
>>> 'sftp://agent.bu.ac.kr'  username = 'yhkang' cdTestDir = 'null'
>>> maxConnections = '-1'
>>>        at org.apache.oodt.cas.pushpull.protocol.ProtocolHandler.getAppropriateProtocolBySite(ProtocolHandler.java:166)
>>>        at org.apache.oodt.cas.pushpull.retrievalsystem.FileRetrievalSystem.changeToDir(FileRetrievalSystem.java:304)
>>>        at org.apache.oodt.cas.pushpull.retrievalmethod.RemoteCrawler.processPropFile(RemoteCrawler.java:104)
>>>        at org.apache.oodt.cas.pushpull.retrievalsystem.RetrievalSetup.retrieveFiles(RetrievalSetup.java:109)
>>>        at org.apache.oodt.cas.pushpull.daemon.Daemon$1.run(Daemon.java:218)
>>>        at java.lang.Thread.run(Thread.java:662)
>>> Aug 6, 2012 2:13:48 PM org.apache.oodt.cas.pushpull.daemon.Daemon$1 run
>>> INFO: Daemon with ID = 90121 on RMI registry port 9012 is shutting down
>>>
>>> I think the warning message is related with an exception occurred in
>>> the method  connect() of  JschSftpClient.java:
>>> protected void connect(String host, final String username,
>>>      final String password) throws ProtocolException {
>>>    try {
>>>      System.out.println(System.getProperty("user.home") + "/.ssh/known_hosts");
>>>      jsch.setKnownHosts(System.getProperty("user.home") + "/.ssh/known_hosts");
>>>      session = jsch.getSession(username, this.getRemoteSite().getURL()
>>>          .getHost(), 22);
>>>      session.setPassword(password);
>>>      session.connect();
>>>      sftpChannel = (ChannelSftp) session.openChannel("sftp");
>>>      sftpChannel.connect();
>>>    } catch (Exception e) {
>>>      throw new ProtocolException("Failed to connect to host " + host + " : "
>>>          + e.getMessage());
>>>    }
>>>  }
>>>
>>> I make sure that there is no problem  when downloading  a file by  scp
>>> command  without any password as follows:
>>> scp yhkang@agent.bu.ac.kr://home/yhkang/oodt-0.5/TL2CO2N.005/2004.09.20/TES-Aura_L2-CO2-Nadir_r0000002147_F06_09.he5
>>> .
>>> TES-Aura_L2-CO2-Nadir_r0000002147_F06_09.he5  100%   88MB  87.9MB/s   00:01
>>>
>>> Let me know how to fix the problem.
>>>
>>> Thanks,
>>> Yunhee
>
>
> ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
> Chris Mattmann, Ph.D.
> Senior Computer Scientist
> NASA Jet Propulsion Laboratory Pasadena, CA 91109 USA
> Office: 171-266B, Mailstop: 171-246
> Email: chris.a.mattmann@nasa.gov
> WWW:   http://sunset.usc.edu/~mattmann/
> ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
> Adjunct Assistant Professor, Computer Science Department
> University of Southern California, Los Angeles, CA 90089 USA
> ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
>

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