guix.git/guix/scripts/offload.scm, branch master

syscalls: Add 'with-file-lock' macro.

2019-06-05T21:10:36Z

* guix/scripts/offload.scm (lock-file, unlock-file, with-file-lock): Move to... * guix/build/syscalls.scm: ... here.

offload: 'status' reports the time difference.

2019-01-22T22:04:05Z

* guix/scripts/offload.scm (check-machine-status): Report the time difference for each MACHINE.

store: Rename '&nix-error' to '&store-error'.

2019-01-21T22:09:55Z

* guix/store.scm (&nix-error): Rename to... (&store-error): ... this, and adjust users. (&nix-connection-error): Rename to... (&store-connection-error): ... this, and adjust users. (&nix-protocol-error): Rename to... (&store-protocol-error): ... this, adjust users. (&nix-error, &nix-connection-error, &nix-protocol-error): Define these condition types and their getters as deprecrated aliases. * build-aux/run-system-tests.scm, guix/derivations.scm, guix/grafts.scm, guix/scripts/challenge.scm, guix/scripts/graph.scm, guix/scripts/lint.scm, guix/scripts/offload.scm, guix/serialization.scm, guix/ssh.scm, guix/tests.scm, guix/ui.scm, tests/derivations.scm, tests/gexp.scm, tests/guix-daemon.sh, tests/packages.scm, tests/store.scm, doc/guix.texi: Adjust to use the new names.

offload: Remove unnecessary locking on machine slots.

2018-12-26T17:40:49Z

This extra level of locking turned out to be unnecessary. * guix/scripts/offload.scm (with-machine-lock): Remove. (machine-lock-file): Remove. (acquire-build-slot): Remove surrounding 'with-machine-lock'.

offload: Remove the "machine choice" lock.

2018-12-26T17:40:49Z

This lock was unnecessary and it led to a contention when many 'guix offload' processes are polling for available machines. * guix/scripts/offload.scm (machine-choice-lock-file): Remove. (choose-build-machine): Remove surrounding 'with-file-lock (machine-lock-file)'.

offload: Adjust 'test' and 'status' to the latest changes.

2018-12-25T16:13:43Z

This is a followup to ed7b44370f71126087eb953f36aad8dc4c44109f; following that commit, 'guix offload test' and 'guix offload status' would abort with a backtrace instead of clearly diagnosing a missing 'guix' command on the build machine. * guix/scripts/offload.scm (assert-node-has-guix): Call 'leave' when NODE is not an inferior. Remove 'catch' blocks for 'node-repl-error'. (check-machine-availability): Invoke 'assert-node-has-guix' first. (check-machine-status): Print a warning when 'remote-inferior' returns #f.

offload: Use (guix inferior) instead of (ssh dist node).

2018-12-24T15:06:32Z

Using inferiors and thus 'guix repl' simplifies setup on build machines (no need to worry about GUILE_LOAD_PATH etc.) Furthermore, the 'guix repl -t machine' protocol running in a remote pipe addresses several issues with the current implementation of nodes and RREPLs in Guile-SSH: fewer round trips, doesn't leave a 'guile --listen' process behind it, stateless (since a new process is started each time), more efficient (the SSH channel can be reused), more reliable (no 'pgrep', 'pkill', and shellology; see as an example.) * guix/ssh.scm (inferior-remote-eval): New procedure. (send-files): Use it instead of 'make-node' and 'node-eval'. * guix/scripts/offload.scm (node-guile-version): New procedure. (node-free-disk-space, transfer-and-offload, node-load) (choose-build-machine, assert-node-has-guix): Use 'remote-inferior' instead of 'make-node' and 'inferior-eval' instead of 'node-eval'. (assert-node-can-import, assert-node-can-export): Likewise, and add 'session' parameter. (check-machine-availability): Likewise, and add calls to 'close-inferior' and 'disconnect!'. (check-machine-status): Likewise. * doc/guix.texi (Daemon Offload Setup): Remove bit related to 'guile' in $PATH and $GUILE_LOAD_PATH; mention 'guix' alone.

offload: Display the normalized load in 'guix offload status' output.

2018-12-23T21:14:15Z

Fixes a regression introduced in bbe66a530a014e8146d63002a5294941e935f863 whereby the actual load (non-normalized) would be displayed. * guix/scripts/offload.scm (check-machine-status): Add call to 'normalized-load'.

offload: Recognize build failures due to lack of disk space.

2018-12-21T22:50:13Z

Previously, if a remote build would fail due to lack of disk space, this would be considered a permanent failure and thus cached as a build failure if the local daemon runs with '--cache-failures'. * guix/scripts/offload.scm (transfer-and-offload): Upon 'nix-protocol-error?' call 'node-free-disk-space' and return 1 instead of 100 if the result if lower than 10 MiB.

offload: Skip machines that are low on disk space.

2018-12-21T22:50:13Z

Fixes . * guix/scripts/offload.scm (node-free-disk-space): New procedure. (%minimum-disk-space): New variable. (choose-build-machine): Call 'node-free-disk-space' and take it into account in addition to LOAD. (check-machine-status): Display the free disk space.