Hi,
I’ve tested it on a other server and there are the same problems.
journalctl -e -u jitsi-videobridge2
Update started at: Apr 09 09:56:33
Apr 01 22:50:31 ubuntuSrv systemd[1]: Starting Jitsi Videobridge...
Apr 01 22:50:31 ubuntuSrv systemd[1]: Started Jitsi Videobridge.
-- Reboot --
Apr 02 00:47:53 ubuntuSrv systemd[1]: Starting Jitsi Videobridge...
Apr 02 00:47:53 ubuntuSrv systemd[1]: Started Jitsi Videobridge.
-- Reboot --
Apr 02 01:27:45 ubuntuSrv systemd[1]: Starting Jitsi Videobridge...
Apr 02 01:27:45 ubuntuSrv systemd[1]: Started Jitsi Videobridge.
-- Reboot --
Apr 02 01:32:24 ubuntuSrv systemd[1]: Starting Jitsi Videobridge...
Apr 02 01:32:24 ubuntuSrv systemd[1]: Started Jitsi Videobridge.
-- Reboot --
Apr 02 01:35:54 ubuntuSrv systemd[1]: Starting Jitsi Videobridge...
Apr 02 01:35:55 ubuntuSrv systemd[1]: Started Jitsi Videobridge.
-- Reboot --
Apr 02 10:05:12 ubuntuSrv systemd[1]: Stopping Jitsi Videobridge...
Apr 02 10:05:14 ubuntuSrv systemd[1]: Stopped Jitsi Videobridge.
-- Reboot --
Apr 02 10:45:08 ubuntuSrv systemd[1]: Stopping Jitsi Videobridge...
Apr 02 10:45:09 ubuntuSrv systemd[1]: Stopped Jitsi Videobridge.
-- Reboot --
Apr 02 10:49:48 ubuntuSrv systemd[1]: Stopping Jitsi Videobridge...
Apr 02 10:49:48 ubuntuSrv systemd[1]: Stopped Jitsi Videobridge.
-- Reboot --
Apr 02 10:53:17 ubuntuSrv systemd[1]: Stopping Jitsi Videobridge...
Apr 02 10:53:18 ubuntuSrv systemd[1]: Stopped Jitsi Videobridge.
-- Reboot --
Apr 02 18:52:59 ubuntuSrv systemd[1]: Stopping Jitsi Videobridge...
Apr 02 18:52:59 ubuntuSrv systemd[1]: Stopped Jitsi Videobridge.
-- Reboot --
Apr 09 09:56:33 ubuntuSrv systemd[1]: Starting Jitsi Videobridge...
Apr 09 09:56:34 ubuntuSrv systemd[1]: Started Jitsi Videobridge.
Apr 09 10:03:19 ubuntuSrv systemd[1]: Stopping Jitsi Videobridge...
Apr 09 10:03:20 ubuntuSrv systemd[1]: Stopped Jitsi Videobridge.
Apr 09 10:03:20 ubuntuSrv systemd[1]: Starting Jitsi Videobridge...
Apr 09 10:03:20 ubuntuSrv systemd[1]: Started Jitsi Videobridge.
Apr 09 10:15:42 ubuntuSrv systemd[1]: Stopping Jitsi Videobridge...
Apr 09 10:15:42 ubuntuSrv systemd[1]: Stopped Jitsi Videobridge.
-- Reboot --
Apr 09 10:15:57 ubuntuSrv systemd[1]: Starting Jitsi Videobridge...
Apr 09 10:15:58 ubuntuSrv systemd[1]: Started Jitsi Videobridge.
sudo tail -n 100 /var/log/jitsi/jvb.log
2020-04-09 10:15:22.494 INFORMATION: [16] VideobridgeExpireThread.expire#144: Running expire()
2020-04-09 10:15:31.758 INFORMATION: [17] Videobridge.createConference#326: create_conf, id=5dd747a9e386f689 gid=null logging=false
2020-04-09 10:15:31.773 INFORMATION: [17] Health.doRun#294: Performed a successful health check in 15ms. Sticky failure: false
2020-04-09 10:15:41.774 INFORMATION: [17] Videobridge.createConference#326: create_conf, id=516a615b0ba5450a gid=null logging=false
2020-04-09 10:15:41.787 INFORMATION: [17] Health.doRun#294: Performed a successful health check in 14ms. Sticky failure: false
2020-04-09 10:16:06.031 INFORMATION: [1] NewConfig$1.invoke#88: Loaded NewConfig with origin: merge of system properties,system properties,reference.conf @ jar:file:/usr/share/jitsi-videobridge/jitsi-videobridge.jar!/reference.conf: 1,reference.conf @ jar:file:/usr/share/jitsi-videobridge/lib/jitsi-media-transform-1.0-139-g33e0a49.jar!/reference.conf: 1
2020-04-09 10:16:06.070 INFORMATION: [1] LegacyConfigFileLoader$Companion.load#40: Attempting to load legacy config file at path /etc/jitsi, videobridge, sip-communicator.properties
2020-04-09 10:16:06.076 INFORMATION: [1] LegacyConfigFileLoader$Companion.load#40: Attempting to load legacy config file at path /etc/jitsi, videobridge, sip-communicator.properties
2020-04-09 10:16:06.080 INFORMATION: [1] JitsiConfig$Companion.reload#40: Reloading.
2020-04-09 10:16:06.121 INFORMATION: [1] NewConfig$1.invoke#88: Loaded NewConfig with origin: merge of system properties,system properties,reference.conf @ jar:file:/usr/share/jitsi-videobridge/jitsi-videobridge.jar!/reference.conf: 1,reference.conf @ jar:file:/usr/share/jitsi-videobridge/lib/jitsi-media-transform-1.0-139-g33e0a49.jar!/reference.conf: 1
2020-04-09 10:16:06.122 INFORMATION: [1] LegacyConfigFileLoader$Companion.load#40: Attempting to load legacy config file at path /etc/jitsi, videobridge, sip-communicator.properties
2020-04-09 10:16:06.122 INFORMATION: [1] LegacyConfigFileLoader$Companion.load#40: Attempting to load legacy config file at path /etc/jitsi, videobridge, sip-communicator.properties
2020-04-09 10:16:06.286 INFORMATION: [11] ConfigurationActivator.start#45: Registered the LegacyConfigurationServiceShim in OSGi.
2020-04-09 10:16:06.314 INFORMATION: [11] AbstractVersionActivator.start#91: VersionService registered: JVB 2.1.164-gfdce823f
2020-04-09 10:16:06.396 INFORMATION: [11] AbstractJettyBundleActivator.start#613: Not starting the Jetty service for org.jitsi.videobridge.rest.RESTBundleActivator(port=8080)
2020-04-09 10:16:06.426 INFORMATION: [11] AbstractJettyBundleActivator.start#613: Not starting the Jetty service for org.jitsi.videobridge.rest.PublicRESTBundleActivator(port=-1)
2020-04-09 10:16:06.431 INFORMATION: [11] AbstractJettyBundleActivator.start#613: Not starting the Jetty service for org.jitsi.videobridge.rest.PublicClearPortRedirectBundleActivator(port=8080)
2020-04-09 10:16:06.661 INFORMATION: [11] UlimitCheck.printUlimits#115: Running with open files limit 65000 (hard 65000), thread limit 65000 (hard 65000).
2020-04-09 10:16:06.666 INFORMATION: [11] VideobridgeExpireThread.start#92: Starting with 60 second interval.
2020-04-09 10:16:06.677 WARNUNG: [11] Videobridge.start#918: No authorized source regexp configured. Will accept requests from any source.
2020-04-09 10:16:06.825 INFORMATION: [20] Videobridge.createConference#326: create_conf, id=9e76f9865f47b8bf gid=null logging=false
2020-04-09 10:16:07.032 INFORMATION: [20] TaskPools.<clinit>#81: TaskPools detected 1 processors, creating the CPU pool with that many threads
2020-04-09 10:16:08.371 INFORMATION: [11] JitsiConfig$Companion.reload#40: Reloading.
2020-04-09 10:16:08.441 INFORMATION: [11] NewConfig$1.invoke#88: Loaded NewConfig with origin: merge of system properties,system properties,reference.conf @ jar:file:/usr/share/jitsi-videobridge/jitsi-videobridge.jar!/reference.conf: 1,reference.conf @ jar:file:/usr/share/jitsi-videobridge/lib/jitsi-media-transform-1.0-139-g33e0a49.jar!/reference.conf: 1
2020-04-09 10:16:08.441 INFORMATION: [11] LegacyConfigFileLoader$Companion.load#40: Attempting to load legacy config file at path /etc/jitsi, videobridge, sip-communicator.properties
2020-04-09 10:16:08.442 INFORMATION: [11] LegacyConfigFileLoader$Companion.load#40: Attempting to load legacy config file at path /etc/jitsi, videobridge, sip-communicator.properties
2020-04-09 10:16:08.541 INFORMATION: [11] OctoRelayService.start#62: Octo relay is disabled.
2020-04-09 10:16:08.713 INFORMATION: [24] org.ice4j.ice.harvest.StunMappingCandidateHarvester.discover: Discovered public address 93.207.156.230:50788/udp from STUN server 18.156.45.236:443/udp using local address 192.168.1.25:0/udp
2020-04-09 10:16:08.713 INFORMATION: [20] org.ice4j.ice.harvest.MappingCandidateHarvesters.initialize: Using org.ice4j.ice.harvest.StunMappingCandidateHarvester, face=/192.168.1.25, mask=/93.207.156.230
2020-04-09 10:16:08.714 INFORMATION: [20] org.ice4j.ice.harvest.MappingCandidateHarvesters.initialize: Initialized mapping harvesters (delay=306ms). stunDiscoveryFailed=false
2020-04-09 10:16:08.716 INFORMATION: [20] org.ice4j.ice.harvest.AbstractUdpListener.<init>: Initialized AbstractUdpListener with address 192.168.1.25:10000/udp. Receive buffer size 10485760 (asked for 10485760)
2020-04-09 10:16:08.720 INFORMATION: [20] org.ice4j.ice.harvest.SinglePortUdpHarvester.<init>: Initialized SinglePortUdpHarvester with address 192.168.1.25:10000/udp
2020-04-09 10:16:12.070 INFORMATION: [25] [hostname=localhost id=shard] MucClient$1.connected#266: Connected.
2020-04-09 10:16:12.070 INFORMATION: [25] [hostname=localhost id=shard] MucClient.lambda$getConnectAndLoginCallable$7#648: Logging in.
2020-04-09 10:16:12.595 INFORMATION: [25] [hostname=localhost id=shard] MucClient$MucWrapper.join#751: Joined MUC: jvbbrewery@internal.auth.192.168.1.25
SCTP JNI load: Linux OS detected
SCTP lib loaded
=====>: org_jitsi_modified_sctp4j_SctpJni.c calling init
=====>: org_jitsi_modified_sctp4j_SctpJni.c about to set SCTP_DEBUG_ALL
2020-04-09 10:16:13.499 INFORMATION: [20] Health.doRun#294: Performed a successful health check in 6807ms. Sticky failure: false
2020-04-09 10:16:23.501 INFORMATION: [20] Videobridge.createConference#326: create_conf, id=70821f2208fb7579 gid=null logging=false
2020-04-09 10:16:23.533 INFORMATION: [20] Health.doRun#294: Performed a successful health check in 34ms. Sticky failure: false
2020-04-09 10:16:33.534 INFORMATION: [20] Videobridge.createConference#326: create_conf, id=12045a626501fea7 gid=null logging=false
2020-04-09 10:16:33.562 INFORMATION: [20] Health.doRun#294: Performed a successful health check in 29ms. Sticky failure: false
2020-04-09 10:16:43.563 INFORMATION: [20] Videobridge.createConference#326: create_conf, id=29399b9f5ad0c90b gid=null logging=false
2020-04-09 10:16:43.593 INFORMATION: [20] Health.doRun#294: Performed a successful health check in 31ms. Sticky failure: false
2020-04-09 10:16:53.593 INFORMATION: [20] Videobridge.createConference#326: create_conf, id=565327a572ca7cc9 gid=null logging=false
2020-04-09 10:16:53.623 INFORMATION: [20] Health.doRun#294: Performed a successful health check in 30ms. Sticky failure: false
2020-04-09 10:17:03.624 INFORMATION: [20] Videobridge.createConference#326: create_conf, id=a20b61ce552a11e8 gid=null logging=false
2020-04-09 10:17:03.646 INFORMATION: [20] Health.doRun#294: Performed a successful health check in 23ms. Sticky failure: false
2020-04-09 10:17:06.667 INFORMATION: [19] VideobridgeExpireThread.expire#144: Running expire()
2020-04-09 10:17:13.648 INFORMATION: [20] Videobridge.createConference#326: create_conf, id=b4e3a34b383cf724 gid=null logging=false
2020-04-09 10:17:13.673 INFORMATION: [20] Health.doRun#294: Performed a successful health check in 26ms. Sticky failure: false
2020-04-09 10:17:23.675 INFORMATION: [20] Videobridge.createConference#326: create_conf, id=8397b3c48c5260fd gid=null logging=false
2020-04-09 10:17:23.694 INFORMATION: [20] Health.doRun#294: Performed a successful health check in 20ms. Sticky failure: false
2020-04-09 10:17:33.700 INFORMATION: [20] Videobridge.createConference#326: create_conf, id=21f7b724a5a204e2 gid=null logging=false
2020-04-09 10:17:33.725 INFORMATION: [20] Health.doRun#294: Performed a successful health check in 26ms. Sticky failure: false
2020-04-09 10:17:43.727 INFORMATION: [20] Videobridge.createConference#326: create_conf, id=f12a4ad6fccc4cd gid=null logging=false
2020-04-09 10:17:43.749 INFORMATION: [20] Health.doRun#294: Performed a successful health check in 23ms. Sticky failure: false
2020-04-09 10:17:53.751 INFORMATION: [20] Videobridge.createConference#326: create_conf, id=c9a89b51efbe0ef1 gid=null logging=false
2020-04-09 10:17:53.768 INFORMATION: [20] Health.doRun#294: Performed a successful health check in 18ms. Sticky failure: false
2020-04-09 10:18:03.769 INFORMATION: [20] Videobridge.createConference#326: create_conf, id=a37da74517dcf5ca gid=null logging=false
2020-04-09 10:18:03.810 INFORMATION: [20] Health.doRun#294: Performed a successful health check in 42ms. Sticky failure: false
2020-04-09 10:18:06.667 INFORMATION: [19] VideobridgeExpireThread.expire#144: Running expire()
2020-04-09 10:18:13.813 INFORMATION: [20] Videobridge.createConference#326: create_conf, id=429acccd13e84489 gid=null logging=false
2020-04-09 10:18:13.836 INFORMATION: [20] Health.doRun#294: Performed a successful health check in 24ms. Sticky failure: false
2020-04-09 10:18:23.837 INFORMATION: [20] Videobridge.createConference#326: create_conf, id=c2146c5d15c9131a gid=null logging=false
2020-04-09 10:18:23.852 INFORMATION: [20] Health.doRun#294: Performed a successful health check in 16ms. Sticky failure: false
2020-04-09 10:18:33.853 INFORMATION: [20] Videobridge.createConference#326: create_conf, id=fdca53e1f75b9f7f gid=null logging=false
2020-04-09 10:18:33.880 INFORMATION: [20] Health.doRun#294: Performed a successful health check in 28ms. Sticky failure: false
2020-04-09 10:18:43.882 INFORMATION: [20] Videobridge.createConference#326: create_conf, id=e707115bdee66e91 gid=null logging=false
2020-04-09 10:18:43.902 INFORMATION: [20] Health.doRun#294: Performed a successful health check in 21ms. Sticky failure: false
2020-04-09 10:18:53.903 INFORMATION: [20] Videobridge.createConference#326: create_conf, id=40295aafe8f3f928 gid=null logging=false
2020-04-09 10:18:53.936 INFORMATION: [20] Health.doRun#294: Performed a successful health check in 33ms. Sticky failure: false
2020-04-09 10:19:03.938 INFORMATION: [20] Videobridge.createConference#326: create_conf, id=54db9ebb9ac369da gid=null logging=false
2020-04-09 10:19:03.952 INFORMATION: [20] Health.doRun#294: Performed a successful health check in 15ms. Sticky failure: false
2020-04-09 10:19:06.668 INFORMATION: [19] VideobridgeExpireThread.expire#144: Running expire()
2020-04-09 10:19:13.952 INFORMATION: [20] Videobridge.createConference#326: create_conf, id=100b13aa40c92e75 gid=null logging=false
2020-04-09 10:19:13.973 INFORMATION: [20] Health.doRun#294: Performed a successful health check in 21ms. Sticky failure: false
2020-04-09 10:19:23.977 INFORMATION: [20] Videobridge.createConference#326: create_conf, id=a210d68815006267 gid=null logging=false
2020-04-09 10:19:23.998 INFORMATION: [20] Health.doRun#294: Performed a successful health check in 22ms. Sticky failure: false
2020-04-09 10:19:33.999 INFORMATION: [20] Videobridge.createConference#326: create_conf, id=594f018155a54a4 gid=null logging=false
2020-04-09 10:19:34.025 INFORMATION: [20] Health.doRun#294: Performed a successful health check in 27ms. Sticky failure: false
2020-04-09 10:19:44.027 INFORMATION: [20] Videobridge.createConference#326: create_conf, id=71dc52e453a9ae62 gid=null logging=false
2020-04-09 10:19:44.048 INFORMATION: [20] Health.doRun#294: Performed a successful health check in 22ms. Sticky failure: false
2020-04-09 10:19:54.049 INFORMATION: [20] Videobridge.createConference#326: create_conf, id=dab02695823afdbd gid=null logging=false
2020-04-09 10:19:54.075 INFORMATION: [20] Health.doRun#294: Performed a successful health check in 26ms. Sticky failure: false
2020-04-09 10:20:04.077 INFORMATION: [20] Videobridge.createConference#326: create_conf, id=421df485db24a8da gid=null logging=false
2020-04-09 10:20:04.102 INFORMATION: [20] Health.doRun#294: Performed a successful health check in 25ms. Sticky failure: false
2020-04-09 10:20:06.668 INFORMATION: [19] VideobridgeExpireThread.expire#144: Running expire()
2020-04-09 10:20:14.103 INFORMATION: [20] Videobridge.createConference#326: create_conf, id=ec358992c8748d09 gid=null logging=false
2020-04-09 10:20:14.115 INFORMATION: [20] Health.doRun#294: Performed a successful health check in 13ms. Sticky failure: false
2020-04-09 10:20:24.116 INFORMATION: [20] Videobridge.createConference#326: create_conf, id=a1e2a134f901ce59 gid=null logging=false
2020-04-09 10:20:24.135 INFORMATION: [20] Health.doRun#294: Performed a successful health check in 18ms. Sticky failure: false
2020-04-09 10:20:34.136 INFORMATION: [20] Videobridge.createConference#326: create_conf, id=9b4dadd2a50d9b79 gid=null logging=false
2020-04-09 10:20:34.153 INFORMATION: [20] Health.doRun#294: Performed a successful health check in 18ms. Sticky failure: false
2020-04-09 10:20:44.154 INFORMATION: [20] Videobridge.createConference#326: create_conf, id=751052508745e987 gid=null logging=false
2020-04-09 10:20:44.172 INFORMATION: [20] Health.doRun#294: Performed a successful health check in 18ms. Sticky failure: false
2020-04-09 10:20:54.173 INFORMATION: [20] Videobridge.createConference#326: create_conf, id=a33f60ec96696c77 gid=null logging=false
2020-04-09 10:20:54.185 INFORMATION: [20] Health.doRun#294: Performed a successful health check in 12ms. Sticky failure: false