16580: remove arvados-node-manager

[arvados.git] / services / nodemanager / arvnodeman / computenode / dispatch / slurm.py

diff --git a/services/nodemanager/arvnodeman/computenode/dispatch/slurm.py b/services/nodemanager/arvnodeman/computenode/dispatch/slurm.py
deleted file mode 100644 (file)
index 5b7785a..0000000
--- a/services/nodemanager/arvnodeman/computenode/dispatch/slurm.py
+++ /dev/null
@@ -1,118 +0,0 @@
-#!/usr/bin/env python
-# Copyright (C) The Arvados Authors. All rights reserved.
-#
-# SPDX-License-Identifier: AGPL-3.0
-
-from __future__ import absolute_import, print_function
-
-import subprocess32 as subprocess
-import time
-
-from . import ComputeNodeMonitorActor
-from . import ComputeNodeSetupActor as SetupActorBase
-from . import ComputeNodeShutdownActor as ShutdownActorBase
-from . import ComputeNodeUpdateActor as UpdateActorBase
-from .. import RetryMixin
-
-class SlurmMixin(object):
-    SLURM_END_STATES = frozenset(['down\n', 'down*\n',
-                                  'drain\n', 'drain*\n',
-                                  'fail\n', 'fail*\n'])
-    SLURM_DRAIN_STATES = frozenset(['drain\n', 'drng\n'])
-
-    def _update_slurm_node(self, nodename, updates):
-        cmd = ['scontrol', 'update', 'NodeName=' + nodename] + updates
-        try:
-            subprocess.check_output(cmd)
-        except:
-            self._logger.error(
-                "SLURM update %r failed", cmd, exc_info=True)
-
-    def _update_slurm_size_attrs(self, nodename, size):
-        self._update_slurm_node(nodename, [
-            'Weight=%i' % int(size.price * 1000),
-            'Features=instancetype=' + size.id,
-        ])
-
-    def _get_slurm_state(self, nodename):
-        return subprocess.check_output(['sinfo', '--noheader', '-o', '%t', '-n', nodename])
-
-
-class ComputeNodeSetupActor(SlurmMixin, SetupActorBase):
-    def create_cloud_node(self):
-        hostname = self.arvados_node.get("hostname")
-        if hostname:
-            self._update_slurm_size_attrs(hostname, self.cloud_size)
-        return super(ComputeNodeSetupActor, self).create_cloud_node()
-
-
-class ComputeNodeShutdownActor(SlurmMixin, ShutdownActorBase):
-    def on_start(self):
-        arv_node = self._arvados_node()
-        if arv_node is None:
-            self._nodename = None
-            return super(ComputeNodeShutdownActor, self).on_start()
-        else:
-            self._set_logger()
-            self._nodename = arv_node['hostname']
-            self._logger.info("Draining SLURM node %s", self._nodename)
-            self._later.issue_slurm_drain()
-
-    @RetryMixin._retry((subprocess.CalledProcessError, OSError))
-    def cancel_shutdown(self, reason, try_resume=True):
-        if self._nodename:
-            if try_resume and self._get_slurm_state(self._nodename) in self.SLURM_DRAIN_STATES:
-                # Resume from "drng" or "drain"
-                self._update_slurm_node(self._nodename, ['State=RESUME'])
-            else:
-                # Node is in a state such as 'idle' or 'alloc' so don't
-                # try to resume it because that will just raise an error.
-                pass
-        return super(ComputeNodeShutdownActor, self).cancel_shutdown(reason)
-
-    @RetryMixin._retry((subprocess.CalledProcessError, OSError))
-    def issue_slurm_drain(self):
-        if self.cancel_reason is not None:
-            return
-        if self._nodename:
-            self._update_slurm_node(self._nodename, [
-                'State=DRAIN', 'Reason=Node Manager shutdown'])
-            self._logger.info("Waiting for SLURM node %s to drain", self._nodename)
-            self._later.await_slurm_drain()
-        else:
-            self._later.shutdown_node()
-
-    @RetryMixin._retry((subprocess.CalledProcessError, OSError))
-    def await_slurm_drain(self):
-        if self.cancel_reason is not None:
-            return
-        output = self._get_slurm_state(self._nodename)
-        if output in ("drng\n", "alloc\n", "drng*\n", "alloc*\n"):
-            self._timer.schedule(time.time() + 10,
-                                 self._later.await_slurm_drain)
-        elif output in ("idle\n",):
-            # Not in "drng" but idle, don't shut down
-            self.cancel_shutdown("slurm state is %s" % output.strip(), try_resume=False)
-        else:
-            # any other state.
-            self._later.shutdown_node()
-
-    def _destroy_node(self):
-        if self._nodename:
-            self._update_slurm_node(self._nodename, [
-                'State=DOWN', 'Reason=Node Manager shutdown'])
-        super(ComputeNodeShutdownActor, self)._destroy_node()
-
-
-class ComputeNodeUpdateActor(SlurmMixin, UpdateActorBase):
-    def sync_node(self, cloud_node, arvados_node):
-        """Keep SLURM's node properties up to date."""
-        hostname = arvados_node.get("hostname")
-        features = arvados_node.get("slurm_node_features", "").split(",")
-        sizefeature = "instancetype=" + cloud_node.size.id
-        if hostname and sizefeature not in features:
-            # This probably means SLURM has restarted and lost our
-            # dynamically configured node weights and features.
-            self._update_slurm_size_attrs(hostname, cloud_node.size)
-        return super(ComputeNodeUpdateActor, self).sync_node(
-            cloud_node, arvados_node)