Unable to restart after service pack 10 install

[aembytes]

Getting this error in logs. AEM would not render anymore

25.09.2021 11:08:10.964 *ERROR* [metrics-RRD4JReporter-1-thread-1] com.codahale.metrics.ScheduledReporter Exception thrown from RRD4JReporter#report. Exception was suppressed.
java.lang.IllegalStateException: RRD already closed, cannot store this sample
at org.rrd4j.core.RrdDb.store(RrdDb.java:512) [org.apache.sling.commons.metrics-rrd4j:1.0.2]
at org.rrd4j.core.Sample.update(Sample.java:194) [org.apache.sling.commons.metrics-rrd4j:1.0.2]
at org.apache.sling.commons.metrics.rrd4j.impl.RRD4JReporter.report(RRD4JReporter.java:260) [org.apache.sling.commons.metrics-rrd4j:1.0.2]
at com.codahale.metrics.ScheduledReporter.report(ScheduledReporter.java:235) [com.adobe.granite.dropwizard.metrics:3.2.4]
at com.codahale.metrics.ScheduledReporter$1.run(ScheduledReporter.java:174) [com.adobe.granite.dropwizard.metrics:3.2.4]
at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515)
at java.base/java.util.concurrent.FutureTask.runAndReset(FutureTask.java:305)
at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:305)
at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
at java.base/java.lang.Thread.run(Thread.java:834)

[Asutosh_Jena_ · Accepted solution]

Hi @aembytes 

Which version of JDK are you using? If you are using JDK 11, do you have the below entry in the sling.properties file?

sling.bootdelegation.sun=sun.*,com.sun.*,jdk.internal.reflect,jdk.internal.reflect.*

If not, please include the above line and it should render the content.

Thanks!

[Manu_Mathew_]

Hi @aembytes 

Try reinstalling the service pack and then restarting the instance.

You can also uninstall and then install it back and check once.