PI96649: PLUG-IN FAILS TO WRITE DATA WITH RC=10035 IN WINDOWS.

Fixes are available

APAR status

Closed as program error.

Error description

When data is read from the client and sent to WAS faster than
WAS can read the data, it results in the OS telling plug-in to
delay the writing. Once the OS indicates the socket is ready,
the plug-in retries writing, but fails to write to WAS with
RC=10035. Although the OS just indicated the socket is ready,
it reports the socket is busy again.

Local fix

```
n/a
```

Problem summary

****************************************************************
* USERS AFFECTED:  IBM WebSphere Application Server web        *
*                  server plugin users                         *
****************************************************************
* PROBLEM DESCRIPTION: Writes to the WebSphere Application     *
*                      server may fail with errors that the    *
*                      socket is busy.                         *
****************************************************************
* RECOMMENDATION:                                              *
****************************************************************
When the OS notifies plugin when a socket is busy and to delay
sending data, plugin calls an OS function to wait (up to the
serveriotimeout value) for the socket to be ready to handle
additional data. On windows (this has only been observed with
the IIS webserver), the OS notifies plugin that the socket is
ready but the write attempt fails saying the socket is busy.

Problem conclusion

Plugin has added an additional write attempt when a "busy"
failure occurs immediately after the OS has reported that the
socket is ready. If this third write attempt fails, the
connection will be terminated in error.

The fix for this APAR is currently targeted for inclusion in
fix pack 8.5.5.14 and 9.0.0.8.  Please refer to the Recommended
Updates page for delivery information:
http://www.ibm.com/support/docview.wss?rs=180&uid=swg27004980

Temporary fix

An alternate solution is to perform tuning such that data is
sent and received at the same rate.

Comments

APAR Information

APAR number
PI96649
Reported component name
WEBS APP SERV N
Reported component ID
5724H8800
Reported release
900
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt / Xsystem
Submitted date
2018-04-12
Closed date
2018-04-12
Last modified date
2018-10-15

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
WEBS APP SERV N
Fixed component ID
5724H8800

Applicable component levels

R850 PSY
UP
R900 PSY
UP

[{"Business Unit":{"code":"BU059","label":"IBM Software w\/o TPS"},"Product":{"code":"SSEQTP","label":"WebSphere Application Server"},"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"9.0","Line of Business":{"code":"LOB45","label":"Automation"}}]

Document Information

Modified date:
03 May 2022

Tips

PI96649: PLUG-IN FAILS TO WRITE DATA WITH RC=10035 IN WINDOWS.

Fixes are available

Subscribe

APAR status

Closed as program error.

Error description

Local fix

Problem summary

Problem conclusion

Temporary fix

Comments

APAR Information

APAR number

Reported component name

Reported component ID

Reported release

Status

PE

HIPER

Special Attention

Submitted date

Closed date

Last modified date

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

Fixed component ID

Applicable component levels

R850 PSY

R900 PSY

Document Information

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