PI70358: EVERY SYSTEMERR LOG RECORD LINE IS ENDING WITH A "NULL", WITH HIGH PERFORMANCE EXTENSIBLE LOGGING (HPEL) ENABLED.

Fixes are available

APAR status

Closed as program error.

Error description

When SystemErr messages are recorded in the logs, with HPEL
enabled, each line is appended with a "null".

Local fix

Problem summary

****************************************************************
* USERS AFFECTED:  All users of IBM WebSphere Application      *
*                  Server.                                     *
****************************************************************
* PROBLEM DESCRIPTION: When High Performance Extensible        *
*                      Logging (HPEL)is enabled, all the       *
*                      SystemErr log records have a "null"     *
*                      appended at the end of each line.       *
****************************************************************
* RECOMMENDATION:                                              *
****************************************************************
There is a "null" at the end of each SystemErr line,in the
log, when HPEL is enabled. The issue only happens when there
are SystemErr records logged, where the following stack trace
also have a "null" appended at the end, with HPEL enabled. An
example of this issue can be seen below, in a snippet of the
SystemErr log records:
[9/28/16 16:03:47:187 EDT] 000000d4 SystemErr     R
java.lang.Throwablenull
[9/28/16 16:03:47:187 EDT] 000000d4 SystemErr     R    at
java.lang.Thread.dumpStack(Thread.java:445)null
[9/28/16 16:03:47:188 EDT] 000000d4 SystemErr     R    at
com.ibm.ws.console.core.servlet.CSRFUtils.verifyCSRFTokenInReque
st(CSRFUtils.java:78)null
[9/28/16 16:03:47:188 EDT] 000000d4 SystemErr     R    at
com.ibm.ws.console.core.ConfigFileHelper.isSessionValid(ConfigFi
leHelper.java:1101)null
[9/28/16 16:03:47:188 EDT] 000000d4 SystemErr     R    at
_ibmjsp.secure._javascriptToSession._jspService(_javascriptToSes
sion.java:152)null
[9/28/16 16:03:47:188 EDT] 000000d4 SystemErr     R    at
com.ibm.ws.jsp.runtime.HttpJspBase.service(HttpJspBase.java:99)n
ull
[9/28/16 16:03:47:188 EDT] 000000d4 SystemErr     R    at
javax.servlet.http.HttpServlet.service(HttpServlet.java:668)null
[9/28/16 16:03:47:188 EDT] 000000d4 SystemErr     R    at
com.ibm.ws.webcontainer.servlet.ServletWrapper.service(ServletWr
apper.java:1237)null
[9/28/16 16:03:47:188 EDT] 000000d4 SystemErr     R    at
com.ibm.ws.webcontainer.servlet.ServletWrapper.handleRequest(Ser
vletWrapper.java:781)null
[9/28/16 16:03:47:188 EDT] 000000d4 SystemErr     R    at
com.ibm.ws.webcontainer.servlet.ServletWrapper.handleRequest(Ser
vletWrapper.java:480)null
[9/28/16 16:03:47:189 EDT] 000000d4 SystemErr     R    at
com.ibm.ws.webcontainer.servlet.ServletWrapperImpl.handleRequest
(ServletWrapperImpl.java:178)null
[9/28/16 16:03:47:189 EDT] 000000d4 SystemErr     R    at
com.ibm.wsspi.webcontainer.servlet.GenericServletWrapper.handleR
equest(GenericServletWrapper.java:122)null
[9/28/16 16:03:47:189 EDT] 000000d4 SystemErr     R    at
com.ibm.ws.jsp.webcontainerext.AbstractJSPExtensionServletWrappe
r.handleRequest(AbstractJSPExtensionServletWrapper.java:220)null
[9/28/16 16:03:47:189 EDT] 000000d4 SystemErr     R    at
com.ibm.ws.webcontainer.filter.WebAppFilterChain.invokeTarget(We
bAppFilterChain.java:136)null
[9/28/16 16:03:47:189 EDT] 000000d4 SystemErr     R    at
com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebApp
FilterChain.java:97)null
...

Problem conclusion

The issue was resolved by adding logic to check for null,before
appending the data to the buffer. This ensured that the "null"
was not appended at the end of each SystemErr line, when HPEL
is enabled.

The fix for this APAR is currently targeted for inclusion in
fix packs 8.5.5.11 and 9.0.0.2.  Please refer to the
Recommended Updates page for delivery information:
http://www.ibm.com/support/docview.wss?rs=180&uid=swg27004980

Temporary fix

Comments

APAR Information

APAR number
PI70358
Reported component name
WEBS APP SERV N
Reported component ID
5724H8800
Reported release
850
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt / Xsystem
Submitted date
2016-10-07
Closed date
2016-10-13
Last modified date
2016-10-14

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":"8.5","Line of Business":{"code":"LOB45","label":"Automation"}}]

Document Information

Modified date:
04 May 2022

Tips

PI70358: EVERY SYSTEMERR LOG RECORD LINE IS ENDING WITH A "NULL", WITH HIGH PERFORMANCE EXTENSIBLE LOGGING (HPEL) ENABLED.

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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