mirror of
https://github.com/mbirth/tcl_ota_check.git
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65 lines
2.2 KiB
Python
65 lines
2.2 KiB
Python
#!/usr/bin/env python3
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# -*- coding: utf-8 -*-
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# pylint: disable=C0111,C0326,C0103
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"""Tools to sort API servers to find the least awful one."""
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import numpy
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class ServerVoteMixin:
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"""A mixin component for server sorting."""
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def __init__(self):
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"""Populate server list and weighting variables."""
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self.g2master = None
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self.master_servers = [
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"g2master-us-east.tclclouds.com",
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"g2master-us-west.tclclouds.com",
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"g2master-eu-west.tclclouds.com",
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"g2master-ap-south.tclclouds.com",
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"g2master-ap-north.tclclouds.com",
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"g2master-sa-east.tclclouds.com",
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]
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self.master_servers_weights = [3] * len(self.master_servers)
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self.check_time_sum = 3
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self.check_time_count = 1
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def get_master_server(self):
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"""Return weighted choice from server list."""
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weight_sum = 0
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for i in self.master_servers_weights:
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weight_sum += i
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numpy_weights = []
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for i in self.master_servers_weights:
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numpy_weights.append(i/weight_sum)
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return numpy.random.choice(self.master_servers, p=numpy_weights)
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def master_server_downvote(self):
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"""Decrease weight of a server."""
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idx = self.master_servers.index(self.g2master)
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if self.master_servers_weights[idx] > 1:
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self.master_servers_weights[idx] -= 1
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def master_server_upvote(self):
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"""Increase weight of a server."""
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idx = self.master_servers.index(self.g2master)
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if self.master_servers_weights[idx] < 10:
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self.master_servers_weights[idx] += 1
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def check_time_add(self, duration):
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"""Record connection time."""
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self.check_time_sum += duration
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self.check_time_count += 1
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def check_time_avg(self):
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"""Return average connection time."""
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return self.check_time_sum / self.check_time_count
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def master_server_vote_on_time(self, last_duration, avg_duration):
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"""Change weight of a server based on average connection time."""
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if last_duration < avg_duration - 0.5:
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self.master_server_upvote()
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elif last_duration > avg_duration + 0.5:
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self.master_server_downvote()
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