it seems it's my turn to answer :)))

On Thu, 1 Oct 2020 at 11:37, Ali Alhaidary <[email protected]>
wrote:

> NOTE: Picked up JDK_JAVA_OPTIONS:
> --add-opens=java.base/java.lang=ALL-UNNAMED
> --add-opens=java.base/java.io=ALL-UNNAMED
> --add-opens=java.rmi/sun.rmi.transport=ALL-UNNAMED
>
> 01-Oct-2020 04:23:56.669 WARNING [main]
> org.apache.tomcat.util.digester.SetPropertiesRule.begin Match
> [Server/Service/Connector/SSLHostConfig/Certificate] failed to set
> property [certificateVerification] to [false]
> 01-Oct-2020 04:23:56.675 WARNING [main]
> org.apache.tomcat.util.digester.SetPropertiesRule.begin Match
> [Server/Service/Connector/SSLHostConfig/Certificate] failed to set
> property [sslProtocol] to [TLS]
> 01-Oct-2020 04:26:10.897 WARNING [main]
> org.apache.catalina.util.SessionIdGeneratorBase.createSecureRandom
> Creation of SecureRandom instance for session ID generation using
> [SHA1PRNG] took [132,520] milliseconds.
>

it takes time to generate SecureRandom, you can provide faster (but less
secure) random source
to speed up start-up:   -Djava.security.egd=file:/dev/./urandom


>
>  [31mWARN  [0;39m 10-01 04:26:23.398  [36mo.a.o.c.r.KurentoHandler:177
> [pool-1-thread-1] [0;39m - Fail to create Kurento client, will re-try in
> 10000 ms
>

Your KMS server is down


>
> 01-Oct-2020 04:26:24.485 WARNING [main]
> com.hazelcast.instance.impl.HazelcastInstanceFactory.null Hazelcast is
> starting in a Java modular environment (Java 9 and newer) but without
> proper access to required Java packages. Use additional Java arguments
> to provide Hazelcast access to Java internal API. The internal API
> access is used to get the best performance results. Arguments to be used:
>

You have to provide additional ENV variable to eliminate this one

JDK_JAVA_OPTIONS="--add-modules java.se --add-exports
java.base/jdk.internal.ref=ALL-UNNAMED --add-opens
java.base/java.lang=ALL-UNNAMED --add-opens java.base/java.nio=ALL-UNNAMED
--add-opens java.base/sun.nio.ch=ALL-UNNAMED --add-opens
java.management/sun.management=ALL-UNNAMED --add-opens
jdk.management/com.sun.management.internal=ALL-UNNAMED"


>
>  [31mWARN  [0;39m 10-01 04:26:25.380  [36mc.h.c.CPSubsystem:67
> [main] [0;39m - [10.19.0.5]:5701 [dev] [4.0.2] CP Subsystem is not
> enabled. CP data structures will operate in UNSAFE mode! Please note
> that UNSAFE mode will not provide strong consistency guarantees.
>


this is about this
https://docs.hazelcast.org/docs/latest/javadoc/com/hazelcast/cp/CPSubsystem.html
not sure if CP need to be set-up or not
will investigate in the future (most probably)


>
> WARNING: An illegal reflective access operation has occurred
> WARNING: Illegal reflective access by
> com.hazelcast.internal.networking.nio.SelectorOptimizer
> (file:/opt/rooms/webapps/openmeetings/WEB-INF/lib/hazelcast-4.0.2.jar)
> to field sun.nio.ch.SelectorImpl.selectedKeys
> WARNING: Please consider reporting this to the maintainers of
> com.hazelcast.internal.networking.nio.SelectorOptimizer
> WARNING: Use --illegal-access=warn to enable warnings of further illegal
> reflective access operations
> WARNING: All illegal access operations will be denied in a future release
>

this is fixed with JDK_JAVA_OPTIONS above


>
>  [31mWARN  [0;39m 10-01 04:26:25.889  [36mc.h.i.impl.Node:67
> [main] [0;39m - [10.19.0.5]:5701 [dev] [4.0.2] No join method is
> enabled! Starting standalone.
>

you have no cluster configured


>
>
> Should I be concerned by the above warnings from catalina.log please ?
>
>

-- 
Best regards,
Maxim

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