Having socket-activated epmd means that there always be only a single
instance managed centrally. Because Erlang also starts it
automatically if not available, and in worst case scenario 'epmd' can
be started by some Erlang application running under systemd. And then
restarting this application unit will cause complete loss of names in
'epmd' (if other Erlang system are also installed on this host).
E.g. see at which lengths RabbitMQ goes to recover from such
situations:
https://github.com/rabbitmq/rabbitmq-server/blame/7741b37b1efa97ac9b17685cc626bd35ee52ca16/src/rabbit_epmd_monitor.erl#L36
Having the only one socket-activated epmd completely solves this
problem.
This reverts commit 25c42e7736.
This commit is still causing evaluation errors (despite passing
OfBorg!)
Here is the current error:
error: undefined variable 'Log4Perl' at
/nix/store/n0gwyv3mcvm3hc9jrmkxjhmsrdjqzcqb-source/maintainers/scripts/nix-generate-from-cpan.nix:7:71
More investigation is needed
/cc @volth
The setup.py of `python-package` contains some path resolution magic to
find `libxgboost.so` which is needed for the python API.
Unfortunately the code is incompatible with Nix as it isn't compatible
with the store-based structure for each package and tries to express the
location of the shared object with relative paths.
The detection in `setup.py` and `xgboost/libpath.py` has been either
removed entirely or patched to link to the proper store path of the
`libxgboost` build input.
See https://hydra.nixos.org/build/77702715 for further reference.
Bazel either reuses the `PATH` from the client, or sets a hardcoded
one. The former mode in problematic for build hermeticity. But the
latter is crippled on NixOS, because the hardcoded value is
`/bin:/usr/bin`. So we set the hardcoded value to match what
`customBash` provides. This has the effect of aligning the
environments for `ctx.actions.run` and `ctx.actions.run_shell`, which
were previously distinct (bug).
76999cc40e changed some hashes resulting in this PR being technically
a mass rebuild. To avoid this, I am restoring some of the hashes (even
though it seems silly). My main goal is to get this PR merged quickly
as treewide changes like this get out-of-date quickly.
This commit should be reverted on the next mass rebuild.
otherwise we get this error on evaluation:
derivation 'lollypop-portal' has invalid meta attribute 'override'
derivation 'lollypop-portal' has invalid meta attribute 'overrideDerivation'
This makes the command ‘nix-env -qa -f. --arg config '{skipAliases =
true;}'’ work in Nixpkgs.
Misc...
- qtikz: use libsForQt5.callPackage
This ensures we get the right poppler.
- rewrites:
docbook5_xsl -> docbook_xsl_ns
docbook_xml_xslt -> docbook_xsl
diffpdf: fixup
This update should also fix the build the hydra: one part of the
change is to build paraview with Qt-5.9, as this is the configuration
that paraview upstream supports.
Ryan Mulligan