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Networking failures on Marist/s390x systems #699
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The network interfaces are definitely enabled for multicast so not clear why this is failing |
@sxa From my investigation I am coming to the same conclusion as Ben on this.... thse Adopt zLinux machine don't support multicast correctly |
I believe these two tests are also linked to this issue:
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@smlambert I believe the OpenJ9 team use zLinux machines from Marist as we do - does the same problem occur on the OpenJ9 CI? |
those tests also fail at OpenJ9 java/net/MulticastSocket/Promiscuous.java: java/nio/channels/DatagramChannel/Promiscuous.java: |
@Haroon-Khel Can you verify whether this problem still exists on the new machines we got in December please? |
This problem persists on the following marist machines: |
Running some grinders to see if this error is still occurring: build-marist-rhel77-s390x-1 - Machine doesn't appear to exist, though there is a "1x". Same machine?
Could be connected to this issue. @sxa - What do you think? |
To summarise earlier call ... 1X is a renamed version of 1 to resolve an issue with the Jenkins connection. It is likely it can be renamed back but it is the same machine. Ignore the sles failure for the purposes of this. The machine does not currently have the ci.role.test label |
Ok, here's a list of all of the multicast tests that were associated with this issue, with the results by VM, version, and machine. build-marist-rhel77-s390x-1x
java/nio/channels/DatagramChannel:
build-marist-rhel77-s390x-2
java/nio/channels/DatagramChannel:
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Set of tests fail for openjdk18, aix-ppc64 java/net/MulticastSocket/B6427403.java Jenkins URL: https://ci.adoptopenjdk.net/job/Test_openjdk18_hs_extended.openjdk_ppc64_aix_testList_1/6/#showFailuresLink |
Since this issue is still open this needs to be re-tested in light of the Marist machines having been rebuilt in the last few months. |
Will link this to other issues as an "umbrella" for Marist/s390x networking failures |
Multicast networking is non-functional on the zLinux test machines.
I'm confident this is what is causing the consistent failure of the tests identified in ibmruntimes/openj9-openjdk-jdk8#143.
I have confirmed using the example multicast client and server code at https://examples.javacodegeeks.com/core-java/net/multicastsocket-net/java-net-multicastsocket-example that a fresh and unmodified zLinux machine provisioned on demand on my intranet works.
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