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From "Johannes Zillmann (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HDFS-7376) Upgrade jsch lib to jsch-0.1.51 to avoid problems running on java7
Date Fri, 07 Nov 2014 09:03:35 GMT
Johannes Zillmann created HDFS-7376:
---------------------------------------

             Summary: Upgrade jsch lib to jsch-0.1.51 to avoid problems running on java7
                 Key: HDFS-7376
                 URL: https://issues.apache.org/jira/browse/HDFS-7376
             Project: Hadoop HDFS
          Issue Type: Bug
            Reporter: Johannes Zillmann


We had an application sitting on top of Hadoop and got problems using jsch once we switched
to java 7. Got this exception:
{noformat}
 com.jcraft.jsch.JSchException: verify: false
	at com.jcraft.jsch.Session.connect(Session.java:330)
	at com.jcraft.jsch.Session.connect(Session.java:183)
{noformat}

Upgrading to jsch-0.1.51 from jsch-0.1.49 fixed the issue for us, but then it got in conflict
with hadoop's jsch version (we fixed this for us by jarjar'ing our jsch version).

So i think jsch got introduce by namenode HA (HDFS-1623). So you guys should check if the
ssh part is properly working for java7 or preventively upgrade the jsch lib to jsch-0.1.51!

Some references to problems reported:
- http://sourceforge.net/p/jsch/mailman/jsch-users/thread/loom.20131009T211650-749@post.gmane.org/
-https://issues.apache.org/bugzilla/show_bug.cgi?id=53437



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