Publisher getting down frequently in production.

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santhoshm687661
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santhoshm687661
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16-07-2021

We have upgraded AEM to 6.5.7.

After upgrade we haev noticed that publisher is getting down and once we restart the instance then issue getting resolved.

When am checking the logs i am not able to find anything.

 

When am going through the thread dumps i have seen below :

 

It holds the lock and this makes the threads count increase and this might have made the application unresponsive. 

stackTrace:
java.lang.Thread.State: RUNNABLE
at java.base@11.0.8/java.lang.ref.Reference.waitForReferencePendingList(Native Method)
at java.base@11.0.8/java.lang.ref.Reference.processPendingReferences(Reference.java:241)
at java.base@11.0.8/java.lang.ref.Reference$ReferenceHandler.run(Reference.java:213)

 

Could you please let me know if any one has any comments for this issue getting resolved.

 

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asutosh_jena
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16-07-2021

Hi @santhoshm687661 

 

This is a known issue in AEM 6.5.7

Deadlock in the SCR Component Registry when many threads are blocked due to org.apache.felix.scr.impl.ComponentRegistry timer. As a result, Experience Manager stops responding for an indefinite time (GRANITE-33125,FELIX-6252).

 

You need to upgrade it to either 6.5.8.0 or there is a hotfix available which needs to be installed to make it work.

Let me know if you need the hotfix.

 

Thanks!

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santhoshm687661
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16-07-2021

@asutosh_jena Thanks for your response.

 

Please share me the hotfix package.

 

Thanks,

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santhoshm687661
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16-07-2021

Its happening in all the publishers.

 

But we have 4 publishers in production.We are facing the issue one at a time.

 

Thanks,