PM08771: FILE UPLOAD VIA AJAX PROXY RESULTS IN OUTOFMEMORYERROR

APAR status

• Closed as program error.

Error description

• When using the Ajax Proxy to upload large files, the system
  fails
  with an OutOfMemoryError occurring in the HttpClient that is
  used by the Ajax Proxy:
  
  SRVE0068E: Uncaught exception thrown in one of the service
  methods of the servlet:
  ProxyServlet. Exception thrown : java.lang.OutOfMemoryError
  at java.io.ByteArrayOutputStream.write(ByteArrayOutputStream
  .java:116)
  at org.apache.commons.httpclient.methods
  .InputStreamRequestEntity.bufferContent(InputStreamRequestEntity
  .java:136)
  at org.apache.commons.httpclient.methods
  .InputStreamRequestEntity.getContentLength(InputStreamRequestEnt
  ity.java:186)
  at org.apache.commons.httpclient.methods.EntityEnclosingMethod
  .getRequestContentLength(EntityEnclosingMethod.java:332)
  at org.apache.commons.httpclient.methods.EntityEnclosingMethod
  .writeRequestBody(EntityEnclosingMethod.java:480)
  at org.apache.commons.httpclient.HttpMethodBase
  .writeRequest(HttpMethodBase.java:1973)
  [...]
  at com.ibm.mm.proxy.servlet.AjaxProxyServlet
  .service(AjaxProxyServlet.java:205)
  

Local fix

Problem summary

• When using the Ajax Proxy to upload large files, the system
  fails with an OutOfMemoryError occurring in the HttpClient that
  is used by the Ajax Proxy:
  
        SRVE0068E: Uncaught exception thrown in one of the service
  methods of the servlet: ProxyServlet. Exception thrown :
  java.lang.OutOfMemoryError
        at
  java.io.ByteArrayOutputStream.write(ByteArrayOutputStream.java:1
  16)
        at
  org.apache.commons.httpclient.methods.InputStreamRequestEntity.b
  ufferContent(InputStreamRequestEntity.java:136)
        at
  org.apache.commons.httpclient.methods.InputStreamRequestEntity.g
  etContentLength(InputStreamRequestEntity.java:186)
        at
  org.apache.commons.httpclient.methods.EntityEnclosingMethod.getR
  equestContentLength(EntityEnclosingMethod.java:332)
        at
  org.apache.commons.httpclient.methods.EntityEnclosingMethod.writ
  eRequestBody(EntityEnclosingMethod.java:480)
        at
  org.apache.commons.httpclient.HttpMethodBase.writeRequest(HttpMe
  thodBase.java:1973) [...]
        at
  com.ibm.mm.proxy.servlet.AjaxProxyServlet.service(AjaxProxyServl
  et.java:205)
  

Problem conclusion

• This APAR ensures sure that files that are being uploaded are
  directly streamed to the target server instead of temporarily
  storing the file on the portal server (the Apache HttpClient API
  which has been used relies on storing the files temporarily).
  
  It is recommended to clear the extension registry cache after
  installing this APAR. Delete the contents of the
  /wp_profile/temp/.../WebSphere_Portal/_extensionregistry
  directory to achieve that.
  
  Failing Module(s):
     Engine: URL Generation
  
  Affected Users:
     All users
  
  Version Information:
      Portal Version(s): 6.1.0.3
       Pre-Requisite(s): ---
        Co-Requisite(s): ---
  
  Manuel Steps:
     Please run the following task:
        <wp_profile>/ConfigEngine/ConfigEngine.[bat|sh]
  apply-PM08771
  
  Platform Specific:
     This fix applies to all platforms.
  
  
  PM08771 is part of Cumulative Fix 02 for Portal 6103.
  
  The Cumulative Fix is available from Fix Central:
  
  http://www.ibm.com/eserver/support/fixes/fixcentral/swgquickorde
  r?apar=PM07968&productid=WebSphere%20Portal&brandid=5
  
  You may need to type or paste the complete address into your Web
  browser.
  

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

  WEBSPHERE PORTA

• Fixed component ID

  5724E7600

Applicable component levels

• R61C PSY

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