mirror of
https://github.com/QingdaoU/OnlineJudge.git
synced 2024-09-21 00:13:18 +00:00
尝试修复判题服务器并发修改的问题
This commit is contained in:
parent
6c077daffb
commit
ac53f7974d
32
judge_dispatcher/migrations/0005_auto_20160519_1627.py
Normal file
32
judge_dispatcher/migrations/0005_auto_20160519_1627.py
Normal file
@ -0,0 +1,32 @@
|
||||
# -*- coding: utf-8 -*-
|
||||
# Generated by Django 1.9.5 on 2016-05-19 08:27
|
||||
from __future__ import unicode_literals
|
||||
|
||||
from django.db import migrations, models
|
||||
|
||||
|
||||
class Migration(migrations.Migration):
|
||||
|
||||
dependencies = [
|
||||
('judge_dispatcher', '0004_auto_20160407_1816'),
|
||||
]
|
||||
|
||||
operations = [
|
||||
migrations.RemoveField(
|
||||
model_name='judgeserver',
|
||||
name='left_instance_number',
|
||||
),
|
||||
migrations.RemoveField(
|
||||
model_name='judgeserver',
|
||||
name='lock',
|
||||
),
|
||||
migrations.RemoveField(
|
||||
model_name='judgeserver',
|
||||
name='workload',
|
||||
),
|
||||
migrations.AddField(
|
||||
model_name='judgeserver',
|
||||
name='used_instance_number',
|
||||
field=models.IntegerField(default=0),
|
||||
),
|
||||
]
|
@ -8,11 +8,8 @@ class JudgeServer(models.Model):
|
||||
port = models.IntegerField()
|
||||
# 这个服务器最大可能运行的判题实例数量
|
||||
max_instance_number = models.IntegerField()
|
||||
left_instance_number = models.IntegerField()
|
||||
workload = models.IntegerField(default=0)
|
||||
used_instance_number = models.IntegerField(default=0)
|
||||
token = models.CharField(max_length=30)
|
||||
# 进行测试用例同步的时候加锁
|
||||
lock = models.BooleanField(default=False)
|
||||
# status 为 false 的时候代表不使用这个服务器
|
||||
status = models.BooleanField(default=True)
|
||||
create_time = models.DateTimeField(auto_now_add=True, blank=True, null=True)
|
||||
|
@ -4,6 +4,7 @@ import logging
|
||||
import time
|
||||
|
||||
from django.db import transaction
|
||||
from django.db.models import F
|
||||
|
||||
from rpc_client import TimeoutServerProxy
|
||||
|
||||
@ -39,11 +40,10 @@ class JudgeDispatcher(object):
|
||||
|
||||
def choose_judge_server(self):
|
||||
with transaction.atomic():
|
||||
servers = JudgeServer.objects.select_for_update().filter(workload__lt=100, lock=False, status=True).order_by("-workload")
|
||||
servers = JudgeServer.objects.select_for_update().filter(used_instance_number__lt=F("max_instance_number"), status=True).order_by("max_instance_number")
|
||||
if servers.exists():
|
||||
server = servers.first()
|
||||
server.left_instance_number -= 1
|
||||
server.workload = 100 - int(float(server.left_instance_number) / server.max_instance_number * 100)
|
||||
server.used_instance_number = F("used_instance_number") + 1
|
||||
server.save()
|
||||
return server
|
||||
|
||||
@ -51,8 +51,7 @@ class JudgeDispatcher(object):
|
||||
with transaction.atomic():
|
||||
# 使用原子操作, 同时因为use和release中间间隔了判题过程,需要重新查询一下
|
||||
server = JudgeServer.objects.select_for_update().get(id=judge_server_id)
|
||||
server.left_instance_number += 1
|
||||
server.workload = 100 - int(float(server.left_instance_number) / server.max_instance_number * 100)
|
||||
server.used_instance_number = F("used_instance_number") - 1
|
||||
server.save()
|
||||
|
||||
def judge(self):
|
||||
|
@ -14,7 +14,7 @@
|
||||
<td>{{ el.id }}</td>
|
||||
<td>{{ el.name }}</td>
|
||||
<td>{{ el.max_instance_number }}</td>
|
||||
<td>{{ el.workload }}</td>
|
||||
<td>{{ el.used_instance_number / el.max_instance_number * 100 }}%</td>
|
||||
<td>{{ el.create_time|date("yyyy-MM-dd HH:mm:ss")}}</td>
|
||||
<td ms-text="el.status?'启用':'停用'"></td>
|
||||
<td>
|
||||
|
Loading…
Reference in New Issue
Block a user