Relax cyclonedds pin: 0.10.2 Domain creation hangs on modern kernels#161
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Relax cyclonedds pin: 0.10.2 Domain creation hangs on modern kernels#161PhysicistJohn wants to merge 1 commit into
PhysicistJohn wants to merge 1 commit into
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cyclonedds 0.10.2's Domain creation blocks indefinitely on recent Linux kernels (observed on Ubuntu 24.04 / kernel 6.17), failing ChannelFactoryInitialize with no error output. The SDK runs against cyclonedds 11.x (verified Domain creation, ChannelFactoryInitialize with explicit interface, and pub/sub on rt/lowstate and rt/lowcmd, on Python 3.10 and 3.12). Relax the pin to >=0.10.2,<12 so installs on modern kernels resolve a working wheel.
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On recent Linux kernels (observed: Ubuntu 24.04, kernel 6.17), the pinned
cyclonedds==0.10.2wheel'sDomaincreation blocks indefinitely when using the auto-determine config path — i.e.ChannelFactoryInitialize(id)with nonetworkInterfaceargument, or a barecyclonedds.domain.Domain(id). Initialization with an explicit interface (ChannelFactoryInitialize(0, "lo")) is unaffected.The SDK works against cyclonedds 11.x — verified
Domaincreation,ChannelFactoryInitializewith and without an explicit interface, and pub/sub onrt/lowstate/rt/lowcmd, on Python 3.10 and 3.12. This relaxes the pin to>=0.10.2,<12so default-path users on modern kernels resolve a working wheel, while older environments keep resolving 0.10.x.One interop note for reviewers: cyclonedds 0.10.x and 11.x participants do not discover each other on a multicast-incapable loopback interface (relevant for sim setups where another process in the system still runs 0.10.x, e.g. alongside the C/C++ SDK's bundled libddsc). Mixed-version deployments on
loshould keep all participants on the same major version.(
ChannelFactory.Init's__initializedguard already makes double-init safe on cyclonedds ≥ 11, where re-creating a live domain raises — that part is already handled on currentmaster.)