unresolved address error while harvesting STUN candidates

[ajaychandra7888]

While running IceDistributed , getting the following error:
Mar 04, 2023 1:18:14 PM org.ice4j.ice.harvest.StunCandidateHarvest sendRequest
INFO: Failed to send ALLOCATE-REQUEST(0x3)[attrib.count=3 len=32 tranID=0x26C197AB86016EEB5E36E9A6] through 172.17.84.152:2020/udp to stun6.jitsi.net:3478/udp
java.lang.IllegalArgumentException: unresolved address
at java.base/java.net.DatagramPacket.setSocketAddress(DatagramPacket.java:350)
at java.base/java.net.DatagramPacket.(DatagramPacket.java:157)
at org.ice4j.stack.Connector.sendMessage(Connector.java:326)
at org.ice4j.stack.NetAccessManager.sendMessage(NetAccessManager.java:634)
at org.ice4j.stack.NetAccessManager.sendMessage(NetAccessManager.java:581)
at org.ice4j.stack.StunClientTransaction.sendRequest0(StunClientTransaction.java:267)
at org.ice4j.stack.StunClientTransaction.sendRequest(StunClientTransaction.java:245)
at org.ice4j.stack.StunStack.sendRequest(StunStack.java:680)
at org.ice4j.stack.StunStack.sendRequest(StunStack.java:618)
at org.ice4j.ice.harvest.StunCandidateHarvest.sendRequest(StunCandidateHarvest.java:1300)
at org.ice4j.ice.harvest.StunCandidateHarvest.startResolvingCandidate(StunCandidateHarvest.java:1405)
at org.ice4j.ice.harvest.StunCandidateHarvester.startResolvingCandidate(StunCandidateHarvester.java:340)
at org.ice4j.ice.harvest.StunCandidateHarvester.harvest(StunCandidateHarvester.java:252)
at org.ice4j.ice.harvest.CandidateHarvesterSetElement.harvest(CandidateHarvesterSetElement.java:86)
at org.ice4j.ice.harvest.CandidateHarvesterSetTask.run(CandidateHarvesterSetTask.java:107)
at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:577)
at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:317)
at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1144)
at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:642)
at java.base/java.lang.Thread.run(Thread.java:1589)

[nils-ohlmeier]

Indeed that DNS entry doesn't appear to exist any more.
@aaronkvanmeerten @bgrozev any idea what happened here?

[ajaychandra7888]

it was an issue with the STUN/TURN servers URLs in Ice.java. (stun.jitsi.net:3478 not getting resolved)
tried with google's Stun server..it worked.
is there any update to jitsi's STUN server URL?

[bgrozev]

I don't think these servers (stun and stun6.jitsi.net) are maintained anymore. I'll open a PR to use the new meet-jit-si servers for STUN, but TURN is trickier because we no longer have the guest credentials.