swarm client 2.1 unable to connect to jenkins instance

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      Using Jenkins 2.7.1 with swarm plugin 2.1 and swarm client 2.0, everything works fine. However, using the 2.1 client, the node appears but is offline.

      With swarm client 2.0 (good):

      /usr/bin/java -server -Djava.awt.headless=true -jar /home/vagrant/.jenkins_slave/swarm-client-2.0-jar-with-dependencies.jar -mode exclusive -executors 4 -fsroot /home/vagrant/.jenkins_slave/ -labels android-build-hi-cpu -labels linux -labels dockerengine -labels external -master http://172.28.128.100:8080/ -name linux1 -disableClientsUniqueId
Discovering Jenkins master
Jul 13, 2016 6:21:20 PM org.apache.commons.httpclient.HttpMethodDirector authenticateHost
WARNING: Required credentials not available for BASIC <any realm>@172.28.128.100:8080
Jul 13, 2016 6:21:20 PM org.apache.commons.httpclient.HttpMethodDirector authenticateHost
WARNING: Preemptive authentication requested but no default credentials available
Jul 13, 2016 6:21:20 PM org.apache.commons.httpclient.HttpMethodBase getResponseBody
WARNING: Going to buffer response body of large or unknown size. Using getResponseBodyAsStream instead is recommended.
Connecting to http://172.28.128.100:8080/
Attempting to connect to http://172.28.128.100:8080/ f71a0340-de01-4b29-bc0f-8259db788409 with ID 
Jul 13, 2016 6:21:20 PM org.apache.commons.httpclient.HttpMethodDirector authenticateHost
WARNING: Required credentials not available for BASIC <any realm>@172.28.128.100:8080
Jul 13, 2016 6:21:20 PM org.apache.commons.httpclient.HttpMethodDirector authenticateHost
WARNING: Preemptive authentication requested but no default credentials available
Could not obtain CSRF crumb. Response code: 404
Jul 13, 2016 6:21:20 PM org.apache.commons.httpclient.HttpMethodDirector authenticateHost
WARNING: Required credentials not available for BASIC <any realm>@172.28.128.100:8080
Jul 13, 2016 6:21:20 PM org.apache.commons.httpclient.HttpMethodDirector authenticateHost
WARNING: Preemptive authentication requested but no default credentials available
Jul 13, 2016 6:21:20 PM hudson.remoting.jnlp.Main createEngine
INFO: Setting up slave: linux1
Jul 13, 2016 6:21:20 PM hudson.remoting.jnlp.Main$CuiListener <init>
INFO: Jenkins agent is running in headless mode.
Jul 13, 2016 6:21:20 PM hudson.remoting.jnlp.Main$CuiListener status
INFO: Locating server among [http://172.28.128.100:8080/]
Jul 13, 2016 6:21:20 PM hudson.remoting.jnlp.Main$CuiListener status
INFO: Connecting to 172.28.128.100:49536
Jul 13, 2016 6:21:20 PM hudson.remoting.jnlp.Main$CuiListener status
INFO: Handshaking
Jul 13, 2016 6:21:20 PM hudson.remoting.jnlp.Main$CuiListener status
INFO: Connected

      Just changing the client to 2.1 (bad):

      /usr/bin/java -server -Djava.awt.headless=true -jar /home/vagrant/.jenkins_slave/swarm-client-2.1-jar-with-dependencies.jar -mode exclusive -executors 4 -fsroot /home/vagrant/.jenkins_slave/ -labels android-build-hi-cpu -labels linux -labels dockerengine -labels external -master http://172.28.128.100:8080/ -name linux1 -disableClientsUniqueId
Discovering Jenkins master
Connecting to http://172.28.128.100:8080/ to configure swarm client.
Jul 13, 2016 6:26:31 PM org.apache.commons.httpclient.HttpMethodDirector authenticateHost
WARNING: Required credentials not available for BASIC <any realm>@172.28.128.100:8080
Jul 13, 2016 6:26:31 PM org.apache.commons.httpclient.HttpMethodDirector authenticateHost
WARNING: Preemptive authentication requested but no default credentials available
Jul 13, 2016 6:26:31 PM org.apache.commons.httpclient.HttpMethodBase getResponseBody
WARNING: Going to buffer response body of large or unknown size. Using getResponseBodyAsStream instead is recommended.
Connecting to http://172.28.128.100:8080/
Attempting to connect to http://172.28.128.100:8080/ f71a0340-de01-4b29-bc0f-8259db788409 with ID 
Jul 13, 2016 6:26:31 PM org.apache.commons.httpclient.HttpMethodDirector authenticateHost
WARNING: Required credentials not available for BASIC <any realm>@172.28.128.100:8080
Jul 13, 2016 6:26:31 PM org.apache.commons.httpclient.HttpMethodDirector authenticateHost
WARNING: Preemptive authentication requested but no default credentials available
Could not obtain CSRF crumb. Response code: 404
Jul 13, 2016 6:26:31 PM org.apache.commons.httpclient.HttpMethodDirector authenticateHost
WARNING: Required credentials not available for BASIC <any realm>@172.28.128.100:8080
Jul 13, 2016 6:26:31 PM org.apache.commons.httpclient.HttpMethodDirector authenticateHost
WARNING: Preemptive authentication requested but no default credentials available

      at which point it indefinitely hangs. Note that there were no changes to the master, just running a different version of the swarm client.

            Assignee:
            Unassigned
            Reporter:
            mcrooney
            Archiver:
            Jenkins Service Account

              Created:
              Updated:
              Resolved:
              Archived: