PI27757: CANNOT DEPLOY LARGE WORKLIGHT APP ON TOMCAT USING WLADM

IBM Worklight Interim Fix README for 6.2.0.1

APAR status

• Closed as program error.

Error description

• When using the wladm Ant task or wladm program to deploy an
  application (.wlapp) or .adapter file larger than 2 MB , the
  following exception occurs:
  
  com.ibm.worklight.admin.restclient.RESTException: Error
  accessing
  http://XXX.XX.XX.XXX:XXXX/worklightadmin/management-apis/1.0/run
  times/YYYYY/applications?locale=ll_CC: Software caused
  connection abort: socket write error
  
  or
  
  com.ibm.worklight.admin.restclient.RESTException: Error
  accessing
  http://XXX.XX.XX.XXX:XXXX/worklightadmin/management-apis/1.0/run
  times/YYYYY/applications?locale=ll_CC: Connection reset
  

Local fix

• Change all <Connector> declarations, in Tomcat's
  conf/server.xml, by adding an attribute
  maxSwallowSize="100000000" (or whatever upper limit on the apps
  and adapters size you can impose).
  Or use the Worklight Console UI to deploy the application or
  adapter.
  Or use the curl program to deploy the application or adapter.
  

Problem summary

• ****************************************************************
  * USERS AFFECTED:                                              *
  * Administrators of Worklight Server 6.2.0.x, deployed in a    *
  * Tomcat server of version 7.0.55 or newer, who use wladm to   *
  * deploy apps or adapters.                                     *
  ****************************************************************
  * PROBLEM DESCRIPTION:                                         *
  * Deploying an app or adapter fails with the error message     *
  * "Software caused connection abort: socket write error" or    *
  * "Connection reset".                                          *
  ****************************************************************
  * RECOMMENDATION:                                              *
  * -                                                            *
  ****************************************************************
  

Problem conclusion

• wladm makes a POST request without credentials, and then a POST
  request with credentials. It is expected that the first request
  fails with HTTP status code 401. Tomcat 7.0.55 does not like to
  receive payloads > 2 MB in failing requests; it closes the
  connection when this happens. In Worklight 6.2.0.2, wladm will
  make the first POST request without a payload, and add the
  payload only in the request that carries the credentials.
  

Temporary fix

Comments

APAR Information

• APAR is sysrouted FROM one or more of the following:

• APAR is sysrouted TO one or more of the following:

Fix information

• Fixed component name

  WORKLIGHT CONSU

• Fixed component ID

  5725I4301

Applicable component levels

• R620 PSY

     UP