How to debug: everything running but cannot establish meeting between parties

I have installed according to the quick-start guide for Debian (just apt install); my server has many nginx virtual hosts, this is just one more with its own IPv6 address — I have disabled STUN/TURN because I don’t want to use them, the traffic should go via my server. I generated letsencrypt certs, all working, browsers and iOS app can connect. But when starting a meeting and then using the URL on three devices, nobody sees other participants, just a dark screen with the controls (camera indicators are on, iOS app says no other people are in the meeting).

I had to debug the connections between jvb/jicofo and prosody (/usr/local trust store was not properly added, used update-ca-certificates -f and switched to openjdk 11, now those processes start without error messages in their logs).

Since I don’t see any errors and I also don’t see any failed connection attempts (neither in Chrome console network tab nor using tcpdump on the server), how shall I debug this?

A perhaps interesting detail is that before I started trying out authentication and while UDP port 10000 was still blocked in the firewall, starting a meeting would show me my own camera image. This is no longer the case.

Regards,

Roland

Start with js console logs in the browser. What error do you see there?

Your strophe is not connecting, this is the communication between client and xmpp server. Check prosody logs for errors. Make surebyou have this setting https://github.com/jitsi/jitsi-meet/blob/94a15914d037fa388aa022c7e8ede318368b8ae0/doc/debian/jitsi-meet-prosody/prosody.cfg.lua-jvb.example#L15

Thanks for trying to help @damencho! The setting was true already, and the only error I get from prosody.err is

Apr 26 22:51:08 portmanager     error   Error binding encrypted port for https: No certificate present in SSL/TLS configuration for https port 5281

In prosody.log I find:

Apr 28 13:06:04 speakerstats.jitsi.XXX.info:speakerstats_component        warn    A module has been configured that triggers external events.
Apr 28 13:06:04 speakerstats.jitsi.XXX.info:speakerstats_component        warn    Implement this lib to trigger external events.
Apr 28 13:06:14 speakerstats.jitsi.XXX.info:speakerstats_component        warn    A module has been configured that triggers external events.
Apr 28 13:06:14 speakerstats.jitsi.XXX.info:speakerstats_component        warn    Implement this lib to trigger external events.
Apr 28 13:06:14 c2s56095af6ac50 info    Client disconnected: closed
Apr 28 13:06:15 conference.jitsi.XXX.info:muc_domain_mapper       warn    Session filters applied
Apr 28 13:06:15 c2s56095ac3fa90 info    Client connected
Apr 28 13:06:15 c2s56095ac3fa90 info    Stream encrypted (TLSv1.3 with TLS_AES_256_GCM_SHA384)
Apr 28 13:06:15 c2s56095ac3fa90 info    Authenticated as jvb@auth.jitsi.XXX.info
Apr 28 13:06:18 jcp56095af790a0 info    component disconnected: focus.jitsi.XXX.info (closed)
Apr 28 13:06:18 c2s56095aca3270 info    Client disconnected: closed
Apr 28 13:06:18 speakerstats.jitsi.XXX.info:speakerstats_component        warn    A module has been configured that triggers external events.
Apr 28 13:06:18 speakerstats.jitsi.XXX.info:speakerstats_component        warn    Implement this lib to trigger external events.
Apr 28 13:06:18 conference.jitsi.XXX.info:muc_domain_mapper       warn    Session filters applied
Apr 28 13:06:18 c2s56095b240720 info    Client connected
Apr 28 13:06:19 c2s56095b240720 info    Stream encrypted (TLSv1.3 with TLS_AES_256_GCM_SHA384)
Apr 28 13:06:19 c2s56095b240720 info    Authenticated as focus@auth.jitsi.XXX.info
Apr 28 13:06:19 focus.jitsi.XXX.info:component    warn    Component not connected, bouncing error for: <iq from='focus@auth.jitsi.XXX.info/focus4480683923586904' type='get' id='Emleq-49' to='focus.jitsi.XXX.info'>
Apr 28 13:06:19 jcp56095a5bbf10 info    Incoming Jabber component connection
Apr 28 13:06:19 focus.jitsi.XXX.info:component    info    External component successfully authenticated

The speakerstats_component lines appear every ten seconds, which is slightly annoying. Then, for a client connection, I see the following:

Apr 28 13:09:54 conference.jitsi.XXX.info:muc_domain_mapper       warn    Session filters applied
Apr 28 13:09:54 mod_bosh        info    New BOSH session, assigned it sid '890613f7-b9d1-4c33-86ac-0850697b2919'

So, as I said, there is nothing logged at error level; is the “Component not connected” line the problem?

Focus not connected, check jicofo logs

every 10sec I get:

Jicofo 2020-04-29 07:43:20.899 INFO: [40] org.jitsi.jicofo.health.Health.log() Performed a successful health check in PT0.008732S. Sticky failure: false

and upon systemctl restart jicofo I see:

Jicofo 2020-04-29 07:50:50.904 INFO: [40] org.jitsi.jicofo.health.Health.log() Performed a successful health check in PT0.0087S. Sticky failure: false
Jicofo 2020-04-29 07:51:00.906 INFO: [40] org.jitsi.jicofo.health.Health.log() Performed a successful health check in PT0.009961S. Sticky failure: false
Jicofo 2020-04-29 07:51:10.905 INFO: [40] org.jitsi.jicofo.health.Health.log() Performed a successful health check in PT0.008626S. Sticky failure: false
Jicofo 2020-04-29 07:51:20.905 INFO: [40] org.jitsi.jicofo.health.Health.log() Performed a successful health check in PT0.0085S. Sticky failure: false
Jicofo 2020-04-29 07:51:30.905 INFO: [40] org.jitsi.jicofo.health.Health.log() Performed a successful health check in PT0.008949S. Sticky failure: false
Jicofo 2020-04-29 07:51:40.905 INFO: [40] org.jitsi.jicofo.health.Health.log() Performed a successful health check in PT0.009061S. Sticky failure: false
Jicofo 2020-04-29 07:51:50.906 INFO: [40] org.jitsi.jicofo.health.Health.log() Performed a successful health check in PT0.008433S. Sticky failure: false
Jicofo 2020-04-29 07:52:00.907 INFO: [40] org.jitsi.jicofo.health.Health.log() Performed a successful health check in PT0.008656S. Sticky failure: false
Jicofo 2020-04-29 07:52:10.901 INFO: [40] org.jitsi.jicofo.health.Health.log() Performed a successful health check in PT0.00394S. Sticky failure: false
Jicofo 2020-04-29 07:52:20.906 INFO: [40] org.jitsi.jicofo.health.Health.log() Performed a successful health check in PT0.008651S. Sticky failure: false
Jicofo 2020-04-29 07:52:30.906 INFO: [40] org.jitsi.jicofo.health.Health.log() Performed a successful health check in PT0.008584S. Sticky failure: false
Jicofo 2020-04-29 07:52:40.907 INFO: [40] org.jitsi.jicofo.health.Health.log() Performed a successful health check in PT0.009439S. Sticky failure: false
Jicofo 2020-04-29 07:52:50.909 INFO: [40] org.jitsi.jicofo.health.Health.log() Performed a successful health check in PT0.009845S. Sticky failure: false
Jicofo 2020-04-29 07:53:00.909 INFO: [40] org.jitsi.jicofo.health.Health.log() Performed a successful health check in PT0.009091S. Sticky failure: false
Jicofo 2020-04-29 07:53:06.760 INFO: [14] org.jitsi.service.libjitsi.LibJitsi.log() Successfully started LibJitsi using as implementation: org.jitsi.impl.libjitsi.LibJitsiOSGiImpl
Jicofo 2020-04-29 07:53:06.783 INFO: [14] impl.configuration.ConfigurationActivator.log() Using properties file configuration store.
Jicofo 2020-04-29 07:53:06.786 INFO: [14] org.jitsi.impl.configuration.ConfigurationServiceImpl.log() awt.toolkit=sun.awt.X11.XToolkit
Jicofo 2020-04-29 07:53:06.786 INFO: [14] org.jitsi.impl.configuration.ConfigurationServiceImpl.log() java.specification.version=11
Jicofo 2020-04-29 07:53:06.786 INFO: [14] org.jitsi.impl.configuration.ConfigurationServiceImpl.log() org.jitsi.jicofo.FOCUS_USER_PASSWORD=dEDvGvMX
Jicofo 2020-04-29 07:53:06.786 INFO: [14] org.jitsi.impl.configuration.ConfigurationServiceImpl.log() sun.cpu.isalist=
Jicofo 2020-04-29 07:53:06.787 INFO: [14] org.jitsi.impl.configuration.ConfigurationServiceImpl.log() sun.jnu.encoding=UTF-8
Jicofo 2020-04-29 07:53:06.787 INFO: [14] org.jitsi.impl.configuration.ConfigurationServiceImpl.log() java.class.path=/usr/share/jicofo/jicofo.jar:/usr/share/jicofo/lib/agafua-syslog-0.4.jar:/usr/share/jicofo/lib/annotations-15.0.jar:/usr/share/jicofo/lib/aopalliance-repackaged
-2.6.1.jar:/usr/share/jicofo/lib/apiguardian-api-1.0.0.jar:/usr/share/jicofo/lib/argparse4j-0.8.1.jar:/usr/share/jicofo/lib/arrow-annotations-0.9.0.jar:/usr/share/jicofo/lib/arrow-core-data-0.9.0.jar:/usr/share/jicofo/lib/arrow-core-extensions-0.9.0.jar:/usr/share/jicofo/lib/ar
row-typeclasses-0.9.0.jar:/usr/share/jicofo/lib/bccontrib-1.0.jar:/usr/share/jicofo/lib/bcpkix-jdk15on-1.54.jar:/usr/share/jicofo/lib/bcprov-jdk15on-1.54.jar:/usr/share/jicofo/lib/byte-buddy-1.9.10.jar:/usr/share/jicofo/lib/byte-buddy-agent-1.9.10.jar:/usr/share/jicofo/lib/cgli
b-nodep-2.2.jar:/usr/share/jicofo/lib/classgraph-4.8.1.jar:/usr/share/jicofo/lib/colormath-1.2.0.jar:/usr/share/jicofo/lib/commons-codec-1.6.jar:/usr/share/jicofo/lib/commons-io-2.6.jar:/usr/share/jicofo/lib/commons-lang3-3.1.jar:/usr/share/jicofo/lib/commons-logging-1.2.jar:/u
sr/share/jicofo/lib/concurrentlinkedhashmap-lru-1.0_jdk5.jar:/usr/share/jicofo/lib/config-1.3.4.jar:/usr/share/jicofo/lib/core-2.0.1.jar:/usr/share/jicofo/lib/diffutils-2.2.jar:/usr/share/jicofo/lib/dnsjava-2.1.7.jar:/usr/share/jicofo/lib/dom4j-1.6.1.jar:/usr/share/jicofo/lib/f
mj-1.0-SNAPSHOT.jar:/usr/share/jicofo/lib/guava-15.0.jar:/usr/share/jicofo/lib/hk2-api-2.6.1.jar:/usr/share/jicofo/lib/hk2-locator-2.6.1.jar:/usr/share/jicofo/lib/hk2-utils-2.6.1.jar:/usr/share/jicofo/lib/httpclient-4.4.1.jar:/usr/share/jicofo/lib/httpcore-4.4.1.jar:/usr/share/
jicofo/lib/ice4j-3.0-12-ge90c796.jar:/usr/share/jicofo/lib/jackson-annotations-2.10.1.jar:/usr/share/jicofo/lib/jackson-core-2.10.1.jar:/usr/share/jicofo/lib/jackson-databind-2.10.1.jar:/usr/share/jicofo/lib/jackson-module-jaxb-annotations-2.10.1.jar:/usr/share/jicofo/lib/jain-
sip-ri-ossonly-1.2.98c7f8c-jitsi-oss1.jar:/usr/share/jicofo/lib/jakarta.activation-api-1.2.1.jar:/usr/share/jicofo/lib/jakarta.annotation-api-1.3.5.jar:/usr/share/jicofo/lib/jakarta.inject-2.6.1.jar:/usr/share/jicofo/lib/jakarta.validation-api-2.0.2.jar:/usr/share/jicofo/lib/ja
karta.ws.rs-api-2.1.6.jar:/usr/share/jicofo/lib/jakarta.xml.bind-api-2.3.2.jar:/usr/share/jicofo/lib/java-dogstatsd-client-2.5.jar:/usr/share/jicofo/lib/java-sdp-nist-bridge-1.1.jar:/usr/share/jicofo/lib/javassist-3.22.0-CR2.jar:/usr/share/jicofo/lib/javax.servlet-api-3.1.0.jar
:/usr/share/jicofo/lib/jbosh-0.9.2.jar:/usr/share/jicofo/lib/jcip-annotations-1.0.jar:/usr/share/jicofo/lib/jcl-core-2.8.jar:/usr/share/jicofo/lib/jersey-client-2.30.1.jar:/usr/share/jicofo/lib/jersey-common-2.30.1.jar:/usr/share/jicofo/lib/jersey-container-jetty-http-2.30.1.ja
r:/usr/share/jicofo/lib/jersey-container-servlet-2.30.1.jar:/usr/share/jicofo/lib/jersey-container-servlet-core-2.30.1.jar:/usr/share/jicofo/lib/jersey-entity-filtering-2.30.1.jar:/usr/share/jicofo/lib/jersey-hk2-2.30.1.jar:/usr/share/jicofo/lib/jersey-media-jaxb-2.30.1.jar:/us
r/share/jicofo/lib/jersey-media-json-jackson-2.30.1.jar:/usr/share/jicofo/lib/jersey-server-2.30.1.jar:/usr/share/jicofo/lib/jetty-client-9.4.15.v20190215.jar:/usr/share/jicofo/lib/jetty-continuation-9.4.17.v20190418.jar:/usr/share/jicofo/lib/jetty-http-9.4.15.v20190215.jar:/us
r/share/jicofo/lib/jetty-io-9.4.15.v20190215.jar:/usr/share/jicofo/lib/jetty-proxy-9.4.15.v20190215.jar:/usr/share/jicofo/lib/jetty-security-9.4.15.v20190215.jar:/usr/share/jicofo/lib/jetty-server-9.4.15.v20190215.jar:/usr/share/jicofo/lib/jetty-servlet-9.4.15.v20190215.jar:/us
r/share/jicofo/lib/jetty-util-9.4.15.v20190215.jar:/usr/share/jicofo/lib/jetty-webapp-7.0.1.v20091125.jar:/usr/share/jicofo/lib/jetty-xml-7.0.1.v20091125.jar:/usr/share/jicofo/lib/jicoco-1.1-27-g9223c3d.jar:/usr/share/jicofo/lib/jicoco-kotlin-1.1-27-g9223c3d.jar:/usr/share/jico
fo/lib/jicoco-test-kotlin-1.1-27-g9223c3d.jar:/usr/share/jicofo/lib/jitsi-android-osgi-1.0-SNAPSHOT.jar:/usr/share/jicofo/lib/jitsi-configuration-2.13.cb5485e.jar:/usr/share/jicofo/lib/jitsi-credentialsstorage-2.13.cb5485e.jar:/usr/share/jicofo/lib/jitsi-dnsservice-2.13.cb5485e
.jar:/usr/share/jicofo/lib/jitsi-netaddr-2.13.cb5485e.jar:/usr/share/jicofo/lib/jitsi-protocol-2.13.cb5485e.jar:/usr/share/jicofo/lib/jitsi-protocol-jabber-2.13.cb5485e.jar:/usr/share/jicofo/lib/jitsi-protocol-media-2.13.cb5485e.jar:/usr/share/jicofo/lib/jitsi-util-2.13.cb5485e
.jar:/usr/share/jicofo/lib/jitsi-utils-1.0-33-g2ed4090.jar:/usr/share/jicofo/lib/jitsi-utils-kotlin-1.0-40-g3244250.jar:/usr/share/jicofo/lib/jitsi-xmpp-extensions-1.0-6-g009420d.jar:/usr/share/jicofo/lib/jna-4.1.0.jar:/usr/share/jicofo/lib/jnsapi-0.0.3-jitsi-smack4.2-3.jar:/us
r/share/jicofo/lib/json-simple-1.1.1.jar:/usr/share/jicofo/lib/junit-jupiter-api-5.5.1.jar:/usr/share/jicofo/lib/junit-platform-commons-1.4.0.jar:/usr/share/jicofo/lib/junit-platform-engine-1.4.0.jar:/usr/share/jicofo/lib/junit-platform-launcher-1.4.0.jar:/usr/share/jicofo/lib/
junit-platform-suite-api-1.4.0.jar:/usr/share/jicofo/lib/jxmpp-core-0.6.2.jar:/usr/share/jicofo/lib/jxmpp-jid-0.6.2.jar:/usr/share/jicofo/lib/jxmpp-util-cache-0.6.2.jar:/usr/share/jicofo/lib/kindedj-1.1.0.jar:/usr/share/jicofo/lib/kotlin-reflect-1.3.61.jar:/usr/share/jicofo/lib
/kotlin-stdlib-1.3.61.jar:/usr/share/jicofo/lib/kotlin-stdlib-common-1.3.61.jar:/usr/share/jicofo/lib/kotlin-stdlib-jdk7-1.3.61.jar:/usr/share/jicofo/lib/kotlin-stdlib-jdk8-1.3.61.jar:/usr/share/jicofo/lib/kotlintest-assertions-3.4.2.jar:/usr/share/jicofo/lib/kotlintest-core-3.
4.2.jar:/usr/share/jicofo/lib/kotlintest-extensions-3.4.2.jar:/usr/share/jicofo/lib/kotlintest-runner-console-3.4.2.jar:/usr/share/jicofo/lib/kotlintest-runner-junit5-3.4.2.jar:/usr/share/jicofo/lib/kotlintest-runner-jvm-3.4.2.jar:/usr/share/jicofo/lib/kotlinx-coroutines-core-1
.1.1.jar:/usr/share/jicofo/lib/kotlinx-coroutines-core-common-1.1.1.jar:/usr/share/jicofo/lib/libidn-1.15.jar:/usr/share/jicofo/lib/libjitsi-1.0-0-gb3296cf.jar:/usr/share/jicofo/lib/mockk-1.9.1.jar:/usr/share/jicofo/lib/mockk-agent-api-1.9.1.jar:/usr/share/jicofo/lib/mockk-agen
t-common-1.9.1.jar:/usr/share/jicofo/lib/mockk-agent-jvm-1.9.1.jar:/usr/share/jicofo/lib/mockk-common-1.9.1.jar:/usr/share/jicofo/lib/mockk-dsl-1.9.1.jar:/usr/share/jicofo/lib/mockk-dsl-jvm-1.9.1.jar:/usr/share/jicofo/lib/mordant-1.2.1.jar:/usr/share/jicofo/lib/object-cloner-0.
1.jar:/usr/share/jicofo/lib/objenesis-2.6.jar:/usr/share/jicofo/lib/opentest4j-1.1.1.jar:/usr/share/jicofo/lib/orange-extensions-1.3.0.jar:/usr/share/jicofo/lib/org.apache.felix.framework-4.4.0.jar:/usr/share/jicofo/lib/org.apache.felix.main-4.4.0.jar:/usr/share/jicofo/lib/org.
eclipse.jgit-4.4.1.201607150455-r.jar:/usr/share/jicofo/lib/org.osgi.core-4.3.1.jar:/usr/share/jicofo/lib/osgi-resource-locator-1.0.3.jar:/usr/share/jicofo/lib/reflections-0.9.11.jar:/usr/share/jicofo/lib/sdes4j-1.1.3.jar:/usr/share/jicofo/lib/sdp-api-1.0.jar:/usr/share/jicofo/
lib/slf4j-api-1.7.26.jar:/usr/share/jicofo/lib/slf4j-jdk14-1.7.26.jar:/usr/share/jicofo/lib/smack-bosh-4.2.4-47d17fc.jar:/usr/share/jicofo/lib/smack-core-4.2.4-47d17fc.jar:/usr/share/jicofo/lib/smack-debug-4.2.4-47d17fc.jar:/usr/share/jicofo/lib/smack-experimental-4.2.4-47d17fc
.jar:/usr/share/jicofo/lib/smack-extensions-4.2.4-47d17fc.jar:/usr/share/jicofo/lib/smack-im-4.2.4-47d17fc.jar:/usr/share/jicofo/lib/smack-java7-4.2.4-47d17fc.jar:/usr/share/jicofo/lib/smack-legacy-4.2.4-47d17fc.jar:/usr/share/jicofo/lib/smack-resolver-javax-4.2.4-47d17fc.jar:/
usr/share/jicofo/lib/smack-sasl-javax-4.2.4-47d17fc.jar:/usr/share/jicofo/lib/smack-tcp-4.2.4-47d17fc.jar:/usr/share/jicofo/lib/tinder-1.3.0.jar:/usr/share/jicofo/lib/univocity-parsers-2.8.1.jar:/usr/share/jicofo/lib/weupnp-0.1.4.jar:/usr/share/jicofo/lib/xml-apis-1.0.b2.jar:/u
sr/share/jicofo/lib/xmlpull-1.1.3.4a.jar:/usr/share/jicofo/lib/xpp3-1.1.4c.jar:/usr/share/jicofo/lib/zrtp4j-light-4.1.0-jitsi-1-SNAPSHOT.jar
Jicofo 2020-04-29 07:53:06.787 INFO: [14] org.jitsi.impl.configuration.ConfigurationServiceImpl.log() java.vm.vendor=Debian
Jicofo 2020-04-29 07:53:06.788 INFO: [14] org.jitsi.impl.configuration.ConfigurationServiceImpl.log() sun.arch.data.model=64
Jicofo 2020-04-29 07:53:06.788 INFO: [14] org.jitsi.impl.configuration.ConfigurationServiceImpl.log() java.vendor.url=https://tracker.debian.org/openjdk-11
Jicofo 2020-04-29 07:53:06.788 INFO: [14] org.jitsi.impl.configuration.ConfigurationServiceImpl.log() user.timezone=Europe/Berlin
Jicofo 2020-04-29 07:53:06.788 INFO: [14] org.jitsi.impl.configuration.ConfigurationServiceImpl.log() os.name=Linux
Jicofo 2020-04-29 07:53:06.788 INFO: [14] org.jitsi.impl.configuration.ConfigurationServiceImpl.log() java.vm.specification.version=11
Jicofo 2020-04-29 07:53:06.788 INFO: [14] org.jitsi.impl.configuration.ConfigurationServiceImpl.log() org.jitsi.jicofo.FOCUS_USER_NAME=focus
Jicofo 2020-04-29 07:53:06.789 INFO: [14] org.jitsi.impl.configuration.ConfigurationServiceImpl.log() sun.java.launcher=SUN_STANDARD
Jicofo 2020-04-29 07:53:06.789 INFO: [14] org.jitsi.impl.configuration.ConfigurationServiceImpl.log() user.country=US
Jicofo 2020-04-29 07:53:06.789 INFO: [14] org.jitsi.impl.configuration.ConfigurationServiceImpl.log() sun.boot.library.path=/usr/lib/jvm/java-11-openjdk-amd64/lib
Jicofo 2020-04-29 07:53:06.789 INFO: [14] org.jitsi.impl.configuration.ConfigurationServiceImpl.log() sun.java.command=org.jitsi.jicofo.Main --host=localhost --domain=jitsi.XXX.info --port=5347 --secret=3BrvUzdu --user_name=focus --user_domain=auth.jitsi.XXX.info --user_passwor
d=dEDvGvMX
Jicofo 2020-04-29 07:53:06.789 INFO: [14] org.jitsi.impl.configuration.ConfigurationServiceImpl.log() jdk.debug=release
Jicofo 2020-04-29 07:53:06.790 INFO: [14] org.jitsi.impl.configuration.ConfigurationServiceImpl.log() org.jitsi.jicofo.HOSTNAME=localhost
Jicofo 2020-04-29 07:53:06.790 INFO: [14] org.jitsi.impl.configuration.ConfigurationServiceImpl.log() sun.cpu.endian=little
Jicofo 2020-04-29 07:53:06.790 INFO: [14] org.jitsi.impl.configuration.ConfigurationServiceImpl.log() user.home=/usr/share/jicofo
Jicofo 2020-04-29 07:53:06.790 INFO: [14] org.jitsi.impl.configuration.ConfigurationServiceImpl.log() user.language=en
Jicofo 2020-04-29 07:53:06.790 INFO: [14] org.jitsi.impl.configuration.ConfigurationServiceImpl.log() java.specification.vendor=Oracle Corporation
Jicofo 2020-04-29 07:53:06.790 INFO: [14] org.jitsi.impl.configuration.ConfigurationServiceImpl.log() java.version.date=2020-04-14
Jicofo 2020-04-29 07:53:06.791 INFO: [14] org.jitsi.impl.configuration.ConfigurationServiceImpl.log() java.home=/usr/lib/jvm/java-11-openjdk-amd64
Jicofo 2020-04-29 07:53:06.791 INFO: [14] org.jitsi.impl.configuration.ConfigurationServiceImpl.log() file.separator=/
Jicofo 2020-04-29 07:53:06.791 INFO: [14] org.jitsi.impl.configuration.ConfigurationServiceImpl.log() java.vm.compressedOopsMode=Zero based
Jicofo 2020-04-29 07:53:06.791 INFO: [14] org.jitsi.impl.configuration.ConfigurationServiceImpl.log() line.separator=

Jicofo 2020-04-29 07:53:06.791 INFO: [14] org.jitsi.impl.configuration.ConfigurationServiceImpl.log() java.specification.name=Java Platform API Specification
Jicofo 2020-04-29 07:53:06.791 INFO: [14] org.jitsi.impl.configuration.ConfigurationServiceImpl.log() java.vm.specification.vendor=Oracle Corporation
Jicofo 2020-04-29 07:53:06.791 INFO: [14] org.jitsi.impl.configuration.ConfigurationServiceImpl.log() java.awt.graphicsenv=sun.awt.X11GraphicsEnvironment
Jicofo 2020-04-29 07:53:06.792 INFO: [14] org.jitsi.impl.configuration.ConfigurationServiceImpl.log() net.java.sip.communicator.impl.configuration.USE_PROPFILE_CONFIG=true
Jicofo 2020-04-29 07:53:06.792 INFO: [14] org.jitsi.impl.configuration.ConfigurationServiceImpl.log() net.java.sip.communicator.service.media.DISABLE_AUDIO_SUPPORT=true
Jicofo 2020-04-29 07:53:06.792 INFO: [14] org.jitsi.impl.configuration.ConfigurationServiceImpl.log() java.util.logging.config.file=/etc/jitsi/jicofo/logging.properties
Jicofo 2020-04-29 07:53:06.792 INFO: [14] org.jitsi.impl.configuration.ConfigurationServiceImpl.log() sun.management.compiler=HotSpot 64-Bit Tiered Compilers
Jicofo 2020-04-29 07:53:06.792 INFO: [14] org.jitsi.impl.configuration.ConfigurationServiceImpl.log() org.jitsi.service.audionotifier.AudioNotifierService=org.jitsi.impl.neomedia.notify.AudioNotifierServiceImpl
Jicofo 2020-04-29 07:53:06.792 INFO: [14] org.jitsi.impl.configuration.ConfigurationServiceImpl.log() java.runtime.version=11.0.7+10-post-Debian-3deb10u1
Jicofo 2020-04-29 07:53:06.793 INFO: [14] org.jitsi.impl.configuration.ConfigurationServiceImpl.log() org.jitsi.jicofo.XMPP_DOMAIN=jitsi.XXX.info
Jicofo 2020-04-29 07:53:06.793 INFO: [14] org.jitsi.impl.configuration.ConfigurationServiceImpl.log() user.name=jicofo
Jicofo 2020-04-29 07:53:06.793 INFO: [14] org.jitsi.impl.configuration.ConfigurationServiceImpl.log() path.separator=:
Jicofo 2020-04-29 07:53:06.793 INFO: [14] org.jitsi.impl.configuration.ConfigurationServiceImpl.log() os.version=4.19.0-8-amd64
Jicofo 2020-04-29 07:53:06.793 INFO: [14] org.jitsi.impl.configuration.ConfigurationServiceImpl.log() java.runtime.name=OpenJDK Runtime Environment
Jicofo 2020-04-29 07:53:06.793 INFO: [14] org.jitsi.impl.configuration.ConfigurationServiceImpl.log() net.java.sip.communicator.CONFIGURATION_FILE_IS_READ_ONLY=true
Jicofo 2020-04-29 07:53:06.793 INFO: [14] org.jitsi.impl.configuration.ConfigurationServiceImpl.log() file.encoding=UTF-8
Jicofo 2020-04-29 07:53:06.793 INFO: [14] org.jitsi.impl.configuration.ConfigurationServiceImpl.log() java.vm.name=OpenJDK 64-Bit Server VM
Jicofo 2020-04-29 07:53:06.794 INFO: [14] org.jitsi.impl.configuration.ConfigurationServiceImpl.log() net.java.sip.communicator.SC_LOG_DIR_LOCATION=/var/log/jitsi
Jicofo 2020-04-29 07:53:06.794 INFO: [14] org.jitsi.impl.configuration.ConfigurationServiceImpl.log() java.vendor.url.bug=https://bugs.debian.org/openjdk-11
Jicofo 2020-04-29 07:53:06.794 INFO: [14] org.jitsi.impl.configuration.ConfigurationServiceImpl.log() net.java.sip.communicator.service.media.DISABLE_VIDEO_SUPPORT=true
Jicofo 2020-04-29 07:53:06.794 INFO: [14] org.jitsi.impl.configuration.ConfigurationServiceImpl.log() java.io.tmpdir=/tmp
Jicofo 2020-04-29 07:53:06.794 INFO: [14] org.jitsi.impl.configuration.ConfigurationServiceImpl.log() net.java.sip.communicator.SC_HOME_DIR_NAME=jicofo
Jicofo 2020-04-29 07:53:06.794 INFO: [14] org.jitsi.impl.configuration.ConfigurationServiceImpl.log() java.version=11.0.7
Jicofo 2020-04-29 07:53:06.794 INFO: [14] org.jitsi.impl.configuration.ConfigurationServiceImpl.log() user.dir=/usr/share/jicofo
Jicofo 2020-04-29 07:53:06.794 INFO: [14] org.jitsi.impl.configuration.ConfigurationServiceImpl.log() os.arch=amd64
Jicofo 2020-04-29 07:53:06.795 INFO: [14] org.jitsi.impl.configuration.ConfigurationServiceImpl.log() java.vm.specification.name=Java Virtual Machine Specification
Jicofo 2020-04-29 07:53:06.795 INFO: [14] org.jitsi.impl.configuration.ConfigurationServiceImpl.log() java.awt.printerjob=sun.print.PSPrinterJob
Jicofo 2020-04-29 07:53:06.795 INFO: [14] org.jitsi.impl.configuration.ConfigurationServiceImpl.log() sun.os.patch.level=unknown
Jicofo 2020-04-29 07:53:06.795 INFO: [14] org.jitsi.impl.configuration.ConfigurationServiceImpl.log() java.library.path=/usr/java/packages/lib:/usr/lib/x86_64-linux-gnu/jni:/lib/x86_64-linux-gnu:/usr/lib/x86_64-linux-gnu:/usr/lib/jni:/lib:/usr/lib
Jicofo 2020-04-29 07:53:06.795 INFO: [14] org.jitsi.impl.configuration.ConfigurationServiceImpl.log() java.vendor=Debian
Jicofo 2020-04-29 07:53:06.795 INFO: [14] org.jitsi.impl.configuration.ConfigurationServiceImpl.log() java.vm.info=mixed mode, sharing
Jicofo 2020-04-29 07:53:06.795 INFO: [14] org.jitsi.impl.configuration.ConfigurationServiceImpl.log() net.java.sip.communicator.SC_HOME_DIR_LOCATION=/etc/jitsi
Jicofo 2020-04-29 07:53:06.796 INFO: [14] org.jitsi.impl.configuration.ConfigurationServiceImpl.log() java.vm.version=11.0.7+10-post-Debian-3deb10u1
Jicofo 2020-04-29 07:53:06.796 INFO: [14] org.jitsi.impl.configuration.ConfigurationServiceImpl.log() sun.io.unicode.encoding=UnicodeLittle
Jicofo 2020-04-29 07:53:06.796 INFO: [14] org.jitsi.impl.configuration.ConfigurationServiceImpl.log() java.class.version=55.0
Jicofo 2020-04-29 07:53:06.796 INFO: [14] org.jitsi.impl.configuration.ConfigurationServiceImpl.log() org.jitsi.jicofo.FOCUS_USER_DOMAIN=auth.jitsi.XXX.info
Jicofo 2020-04-29 07:53:06.796 INFO: [14] org.jitsi.impl.configuration.ConfigurationServiceImpl.log() Normal classloader
Jicofo 2020-04-29 07:53:06.797 INFO: [14] org.jitsi.impl.configuration.ConfigurationServiceImpl.log() failed to find jitsi-defaults.properties with class loader, will continue without it.
Jicofo 2020-04-29 07:53:06.797 INFO: [14] org.jitsi.impl.configuration.ConfigurationServiceImpl.log() Normal classloader
Jicofo 2020-04-29 07:53:06.798 INFO: [14] org.jitsi.impl.configuration.ConfigurationServiceImpl.log() failed to find jitsi-default-overrides.properties with class loader, will continue without it.
Jicofo 2020-04-29 07:53:06.809 INFO: [14] util.NetworkUtils.<clinit>().117 java.net.preferIPv6Addresses=null
Jicofo 2020-04-29 07:53:06.809 INFO: [14] util.NetworkUtils.<clinit>().118 java.net.preferIPv4Stack=null
Jicofo 2020-04-29 07:53:06.814 INFO: [14] impl.netaddr.NetworkAddressManagerServiceImpl.start().92 Network Address Manager         ...[  STARTED ]
Jicofo 2020-04-29 07:53:06.814 INFO: [14] impl.netaddr.NetworkAddressManagerServiceImpl.start().98 Network Address Manager Service ...[REGISTERED]
Jicofo 2020-04-29 07:53:06.818 INFO: [14] org.jitsi.version.AbstractVersionActivator.log() VersionService registered: JiCoFo 1.0.549
Jicofo 2020-04-29 07:53:06.975 INFO: [14] org.jitsi.jicofo.JitsiMeetGlobalConfig.init().205 Automatically grant 'owner' role: true
Jicofo 2020-04-29 07:53:06.975 INFO: [14] org.jitsi.jicofo.JitsiMeetGlobalConfig.init().218 Jibri requests in PENDING state will be timed out after: 90 seconds
Jicofo 2020-04-29 07:53:06.975 INFO: [14] org.jitsi.jicofo.JitsiMeetGlobalConfig.init().231 Will attempt a maximum of 5 Jibri retries after failure
Jicofo 2020-04-29 07:53:06.975 INFO: [14] org.jitsi.jicofo.JitsiMeetGlobalConfig.init().245 Lonely participants will be "terminated" after 20000 milliseconds
Jicofo 2020-04-29 07:53:06.993 WARNING: [14] org.jitsi.jicofo.FocusManager.log() No dedicated JVB MUC XMPP connection configured - falling back to the default XMPP connection
Jicofo 2020-04-29 07:53:06.995 INFO: [14] org.jitsi.jicofo.bridge.BridgeSelector.log() Using org.jitsi.jicofo.bridge.SingleBridgeSelectionStrategy
Jicofo 2020-04-29 07:53:06.995 INFO: [14] org.jitsi.jicofo.bridge.BridgeSelector.log() Bridge failure reset threshold: 300000
Jicofo 2020-04-29 07:53:06.995 INFO: [14] org.jitsi.jicofo.bridge.BridgeSelector.log() Local region: null
Jicofo 2020-04-29 07:53:06.996 INFO: [14] org.jitsi.jicofo.JitsiMeetServices.log() Using a Bridge MUC detector with MUC: JvbBrewery@internal.auth.jitsi.XXX.info
Jicofo 2020-04-29 07:53:07.003 INFO: [14] org.jitsi.jicofo.auth.AuthBundleActivator.start().196 Starting authentication service... URL: XMPP:jitsi.XXX.info
Jicofo 2020-04-29 07:53:07.004 INFO: [14] org.jitsi.jicofo.auth.AbstractAuthAuthority.log() Authentication lifetime: 86400000
Jicofo 2020-04-29 07:53:07.005 INFO: [14] org.jitsi.jicofo.auth.AuthBundleActivator.start().225 Auth authority: org.jitsi.jicofo.auth.XMPPDomainAuthAuthority@a504fdd
Jicofo 2020-04-29 07:53:07.027 INFO: [14] org.eclipse.jetty.util.log.initialized() Logging initialized @420ms to org.eclipse.jetty.util.log.Slf4jLog
Jicofo 2020-04-29 07:53:07.096 INFO: [14] org.eclipse.jetty.server.Server.doStart() jetty-9.4.15.v20190215; built: 2019-02-15T16:53:49.381Z; git: eb70b240169fcf1abbd86af36482d1c49826fa0b; jvm 11.0.7+10-post-Debian-3deb10u1
Jicofo 2020-04-29 07:53:07.384 INFO: [21] org.jitsi.jicofo.ProtocolProviderHandler.registrationStateChanged().144 XmppProtocolProvider(focus@auth.jitsi.XXX.info/focus4548292040430579 (Jabber)): RegistrationStateChangeEvent[ oldState=Unregistered; newState=RegistrationState=Registered; reasonCode=-1; reason=null]
Jicofo 2020-04-29 07:53:07.408 INFO: [21] org.jitsi.jicofo.xmpp.BaseBrewery.start().186 Joined brewery room: JvbBrewery@internal.auth.jitsi.XXX.info
Jicofo 2020-04-29 07:53:07.408 INFO: [32] org.jitsi.jicofo.xmpp.BaseBrewery.processInstanceStatusChanged().329 Added brewery instance: jvbbrewery@internal.auth.jitsi.XXX.info/ab57d092-5fd8-4201-b5e3-a25dde1d7447
Jicofo 2020-04-29 07:53:07.409 WARNING: [32] org.jitsi.jicofo.bridge.BridgeSelector.log() No pub-sub node mapped for jvbbrewery@internal.auth.jitsi.XXX.info/ab57d092-5fd8-4201-b5e3-a25dde1d7447
Jicofo 2020-04-29 07:53:07.411 INFO: [32] org.jitsi.jicofo.bridge.Bridge.log() Setting max total packet rate of 50800.0
Jicofo 2020-04-29 07:53:07.411 INFO: [32] org.jitsi.jicofo.bridge.Bridge.log() Setting average participant packet rate of 500
Jicofo 2020-04-29 07:53:07.414 INFO: [32] org.jitsi.jicofo.bridge.BridgeSelector.log() Added new videobridge: Bridge[jid=jvbbrewery@internal.auth.jitsi.XXX.info/ab57d092-5fd8-4201-b5e3-a25dde1d7447, relayId=null, region=null, stress=0.00]
Jicofo 2020-04-29 07:53:07.415 INFO: [21] org.jitsi.jicofo.ComponentsDiscovery.log() New component discovered: conference.jitsi.XXX.info, null
Jicofo 2020-04-29 07:53:07.415 INFO: [21] org.jitsi.jicofo.JitsiMeetServices.log() MUC component discovered: conference.jitsi.XXX.info
Jicofo 2020-04-29 07:53:07.418 INFO: [21] org.jitsi.jicofo.ComponentsDiscovery.log() New component discovered: guest.jitsi.XXX.info, Prosody(0.11.2,Linux)
Jicofo 2020-04-29 07:53:07.419 INFO: [21] org.jitsi.jicofo.ComponentsDiscovery.log() New component discovered: auth.jitsi.XXX.info, Prosody(0.11.2,Linux)
Jicofo 2020-04-29 07:53:07.420 INFO: [21] org.jitsi.jicofo.JitsiMeetServices.log() Detected XMPP server version: Prosody(0.11.2,Linux)
Jicofo 2020-04-29 07:53:07.421 INFO: [21] org.jitsi.jicofo.ComponentsDiscovery.log() Services re-discovery interval: 30000
Jicofo 2020-04-29 07:53:07.421 INFO: [21] org.jitsi.jicofo.FocusManager.log() XMPP provider reg state: RegistrationState=Registered
Jicofo 2020-04-29 07:53:07.426 INFO: [21] org.jitsi.impl.protocol.xmpp.XmppProtocolProvider.doConnect().305 XMPP provider Jabber:focus@auth.jitsi.XXX.info/focus4548292040430579@localhost connected (JID: focus@auth.jitsi.XXX.info/focus4548292040430579)
Jicofo 2020-04-29 07:53:07.551 INFO: [14] org.eclipse.jetty.server.handler.ContextHandler.doStart() Started o.e.j.s.ServletContextHandler@4a2bf804{/,null,AVAILABLE}
Jicofo 2020-04-29 07:53:07.559 INFO: [14] org.eclipse.jetty.server.AbstractConnector.doStart() Started ServerConnector@26874cbe{HTTP/1.1,[http/1.1]}{0.0.0.0:8888}
Jicofo 2020-04-29 07:53:07.559 INFO: [14] org.eclipse.jetty.server.Server.doStart() Started @954ms
Jicofo 2020-04-29 07:53:07.562 INFO: [1] org.jitsi.impl.configuration.ConfigurationServiceImpl.log() net.java.sip.communicator.impl.protocol.jabber.extensions.caps.EntityCapsManager.CAPS.http://prosody.im#wBlvgkM1+mhpz81eJoge4hYoI0Q==<query xmlns='http://jabber.org/protocol/disco#info' node='http://prosody.im#wBlvgkM1+mhpz81eJoge4hYoI0Q='><identity category='pubsub' name='Prosody' type='pep'/><identity category='server' name='Prosody' type='im'/><feature var='jabber:iq:roster'/><feature var='http://jabber.org/protocol/commands'/><feature var='vcard-temp'/><feature var='urn:xmpp:time'/><feature var='jabber:iq:time'/><feature var='http://jabber.org/protocol/pubsub#publish'/><feature var='msgoffline'/><feature var='jabber:iq:version'/><feature var='jabber:iq:private'/><feature var='jabber:iq:register'/><feature var='http://jabber.org/protocol/disco#info'/><feature var='http://jabber.org/protocol/disco#items'/><feature var='urn:xmpp:carbons:2'/><feature var='jabber:iq:last'/><feature var='urn:xmpp:ping'/><feature var='urn:xmpp:blocking'/></query>
Jicofo 2020-04-29 07:53:07.562 INFO: [1] org.jitsi.impl.configuration.ConfigurationServiceImpl.log() org.jitsi.jicofo.auth.URL=XMPP:jitsi.XXX.info
Jicofo 2020-04-29 07:53:07.562 INFO: [1] org.jitsi.impl.configuration.ConfigurationServiceImpl.log() org.jitsi.jicofo.BRIDGE_MUC=JvbBrewery@internal.auth.jitsi.XXX.info
Jicofo 2020-04-29 07:53:07.567 INFO: [1] org.jitsi.xmpp.component.ComponentBase.log() Component org.jitsi.jicofo. config: 
Jicofo 2020-04-29 07:53:07.567 INFO: [1] org.jitsi.xmpp.component.ComponentBase.log()   ping interval: 10000 ms
Jicofo 2020-04-29 07:53:07.567 INFO: [1] org.jitsi.xmpp.component.ComponentBase.log()   ping timeout: 5000 ms
Jicofo 2020-04-29 07:53:07.568 INFO: [1] org.jitsi.xmpp.component.ComponentBase.log()   ping threshold: 3
Jicofo 2020-04-29 07:53:07.572 INFO: [14] org.jitsi.jicofo.health.Health.log() Started with interval=10000, timeout=PT30S, maxDuration=PT3S, stickyFailures=false.
Jicofo 2020-04-29 07:53:17.593 INFO: [40] org.jitsi.jicofo.health.Health.log() Performed a successful health check in PT0.029186S. Sticky failure: false
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by org.dom4j.io.SAXContentHandler (file:/usr/share/jicofo/lib/dom4j-1.6.1.jar) to method com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser$LocatorProxy.getEncoding()
WARNING: Please consider reporting this to the maintainers of org.dom4j.io.SAXContentHandler
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
Jicofo 2020-04-29 07:53:27.577 INFO: [40] org.jitsi.jicofo.health.Health.log() Performed a successful health check in PT0.013702S. Sticky failure: false
Jicofo 2020-04-29 07:53:37.440 INFO: [35] org.jitsi.jicofo.ComponentsDiscovery.log() New component discovered: focus.jitsi.XXX.info, null
Jicofo 2020-04-29 07:53:37.568 INFO: [40] org.jitsi.jicofo.health.Health.log() Performed a successful health check in PT0.004865S. Sticky failure: false

What should I look for?

This had been updated https://github.com/jitsi/jicofo/pull/494

Thanks! AFAICS that switches off the log line (every 10sec), but should not influence my situation otherwise, right?