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Wed Nov 1 23:58:21 2000 UTC (18 years, 8 months ago) by tdb
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Minutes from meeting on 01/11/2000.

1 Minutes of Meeting, 01/11/2000 @ 15:00
2 Location: UKC Computer Science Meeting Room
3
4 Present: ab11, ajm4, pjm2, tdb1
5
6 It was decided that we should aim to start programming in
7 the Project Week, which we believe is week 8. This gives us
8 a week and a half to work out what we need to do before we
9 can start the implementation, and do it.
10
11 Discussion on UDP packets, and whether we really want to use
12 it for host to server communication. Need to find out more
13 about how Java implements UDP, and whether jc wants to take
14 this route.
15
16 ajm4 leaves after about 10 minutes, because he doesn't want
17 to walk home....
18
19 It was decided that regardless of whether we used TCP or
20 UDP, we would format the data sent between the host and the
21 server in XML.
22
23 This is a rough list of the things we think we'll be needing
24 to monitor, although some will not come until at least after
25 the first main release.
26
27 Solaris
28 - IP Address or Hostname
29 - MAC Address
30 - OS Name
31 - OS Version
32
33 - CPU(s) % Usage
34 - Load (3 values)
35 - Memory Total
36 - Memory Free
37 - Swap Total
38 - Swap Free
39
40 - Disk Space Total (per partition)
41 - Disk Space Free (per partition)
42 - Number of users
43
44 - Open sockets (how many etc)
45 - List "greedy processes" (ie. those that have consumed too
46 many resources.
47
48 Windows NT
49 - IP Address or Hostname
50 - MAC Address
51 - OS Name
52 - OS Version
53
54 - CPU(s) % Usage
55 - Memory Total
56 - Memory Free
57
58 - Disk Space Total (per partition)
59 - Disk Space Free (per partition)
60
61 - Shares in use
62 - User connected to resources
63
64 The discussion then side-tracked on to the host to server
65 communication. It was discussed that having the server
66 retain all configuration ifnromation would make management
67 easier. The host would know about the "well known port" that
68 the Filter Manager is runing on (maybe using /etc/services).
69 Also, it could be possible to use a DNS CNAME (aka wpad!) to
70 locate the machine that the server is running on. This would
71 mean that the host has no configuration information sotred
72 locally, at least initially anyway. The configuration would
73 be sent from the server to the host during the initial TCP
74 communications between the host and the Filter Manager (or
75 maybe initial communication with it's assigned host).
76
77 This is a very rough idea of the XML encoding we could use.
78 It may not be 100% XML compliant, but that's not something
79 we need to worry about right at the start. This first one
80 was produced by pjm2.
81
82 <?xml version="1.0" encoding="????????" ?>
83 <data>
84 <ip_address>###</ip_address>
85 <mac_address>###</mac_address>
86 <os_name>###</os_name>
87 <os_ver>###</os_ver>
88 <cpu>###</cpu>
89 <load1>###</load1>
90 <load5>###</load5>
91 <load15>###</load15>
92 <mem_total>###</mem_total>
93 <mem_free>###</mem_free>
94 <swap_total>###</swap_total>
95 <swap_free>###</swap_free>
96 <disk_total>###</disk_total>
97 <disk_free>###</disk_free>
98 <users>###</users>
99 <open_sockets>###</open_sockets>
100 <greedy>###</greedy>
101 </data>
102
103 tdb1 decided to put this forward, but doesn't have a clue
104 about XML compliance... he just thinks it looks nicer. :)
105
106 <?xml version="1.0" encoding="????????" ?>
107 <data>
108 <identity>
109 <ip_address>###</ip_address>
110 <mac_address>###</mac_address>
111 <os_name>###</os_name>
112 <os_ver>###</os_ver>
113 </identity>
114 <system>
115 <cpu>###</cpu>
116 <load>
117 <1>###</1>
118 <5>###</5>
119 <15>###</15>
120 </load>
121 <mem_total>###</mem_total>
122 <mem_free>###</mem_free>
123 <swap_total>###</swap_total>
124 <swap_free>###</swap_free>
125 </system>
126 <disk>
127 <part>
128 <name>###</name>
129 <total>###</total>
130 <free>###</free>
131 </part>
132 </disk>
133 <procs>
134 <users>###</users>
135 <open_sockets>###</open_sockets>
136 <greedy>###</greedy>
137 </procs>
138 </data>
139
140 Things we need to do before we can commence implementation;
141
142 - Investigate XML & Java
143 - Find out about UDP, and how it works in Java
144 - UML diagrams for the server and host
145
146 Meeting was concluded @ 5pm. Next meeting arranged for
147 Monday, in the meeting room. Someone needs to book it soon.
148

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