[Notes] [Git][BuildGrid/buildgrid][master] Fixed race condition.

[finn <gitlab mg gitlab com>]

Title: GitLab

finn pushed to branch master at BuildGrid / buildgrid

Commits:

• 473852e5
  by finnball at 2018-09-10T15:59:11Z

  Fixed race condition.
  
  If a job was marked as completed, it may be destroyed before
  it had time to update the lease state.
  

2 changed files:

• buildgrid/server/scheduler.py
• buildgrid/server/worker/bots_interface.py

Changes:

buildgrid/server/scheduler.py

---

...	...	@@ -82,13 +82,10 @@ class Scheduler:
82	82	job.n_tries += 1
83	83	self.queue.appendleft(job)
84	84
85		- self.jobs[name] = job
86		-
87	85	def job_complete(self, name, result):
88	86	job = self.jobs[name]
89	87	job.result = result
90	88	job.update_execute_stage(ExecuteStage.COMPLETED)
91		- self.jobs[name] = job
92	89	if not job.do_not_cache and self._action_cache is not None:
93	90	self._action_cache.update_action_result(job.action_digest, result)
94	91
...	...	@@ -101,7 +98,6 @@ class Scheduler:
101	98	def update_job_lease_state(self, name, state):
102	99	job = self.jobs[name]
103	100	job.lease.state = state
104		- self.jobs[name] = job
105	101
106	102	def get_job_lease(self, name):
107	103	return self.jobs[name].lease
...	...	@@ -118,5 +114,4 @@ class Scheduler:
118	114	job.update_execute_stage(ExecuteStage.EXECUTING)
119	115	job.lease = job.create_lease()
120	116	job.lease.state = LeaseState.PENDING.value
121		- self.jobs[job.name] = job
122	117	yield job.lease

buildgrid/server/worker/bots_interface.py

---

...	...	@@ -113,8 +113,8 @@ class BotsInterface:
113	113	pass
114	114
115	115	elif client_state == LeaseState.COMPLETED:
116		- self._scheduler.job_complete(client_lease.id, client_lease.result)
117	116	self._scheduler.update_job_lease_state(client_lease.id, client_lease.state)
	117	+ self._scheduler.job_complete(client_lease.id, client_lease.result)
118	118	return None
119	119
120	120	else:

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