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4 replies

kautuk_sahni
Community Manager
kautuk_sahniCommunity Manager
Community Manager
August 3, 2016

Some Quick try:-

1. Restart instance.

2. Restart "org.apache.felix.webconsole.plugins.ds" bundle

 

When and where are you getting this error? Is this happening only on a single instance or is throughout all your instances?

~kautuk

Kautuk Sahni
M
monikam6817093Author
Level 4
August 3, 2016

We are facing this issue in PROD Author server.

Jitendra_S_Toma
Jitendra_S_Toma
Level 10
August 3, 2016

monikam6817093 wrote...

HTTP ERROR: 500  Problem accessing /system/console/slinglog.

Reason:      Server Error

Can you suggest the steps to fix the issue.

 

It isn't the case in my local. provide more details please.

GK-007
GK-007
Level 9
August 5, 2016

Please share exact error message from error.log file.

-Kishore

M
MrynalKumar
April 7, 2020

@monikam6817093 , I also faced similar issue. '/system/console/slinglog' was not getting loaded. 

Error Log -

07.04.2020 10:12:45.297 *ERROR* [qtp1407899993-6020] org.apache.felix.http.jetty Exception while processing request to /system/console/slinglog (java.lang.NullPointerException)

java.lang.NullPointerException: null

        at java.util.concurrent.ConcurrentHashMap.get(ConcurrentHashMap.java:936)

        at org.apache.sling.commons.log.logback.internal.LogConfigManager.getLogWriter(LogConfigManager.java:223) [org.apache.sling.commons.log:5.1.10]

 

Reason - 

  • As error log suggests some of the key/value in the Logger configuration is missing/null. 
  • 'org.apache.sling.commons.log.level'  Log level for the error.log is not correctly configured. Also there were multiple error log configurations

Fix -

  • Delete all the duplicate unwanted error.log
  • Reconfigure the log level

   

 

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