+- Like Ra's Naughty Forum (https://www.likera.com/forum/mybb)
+-- Forum: Technical section (https://www.likera.com/forum/mybb/Forum-Technical-section)
+--- Forum: Site (https://www.likera.com/forum/mybb/Forum-Site)
+--- Thread: Site performance, Server errors, outages and tunings (/Thread-Site-performance-Server-errors-outages-and-tunings)
Pages:
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
RE: server error, address not available - Like Ra - 21 Jan 2011
Wrote a monitoring script which checks the load every 15 sec. It will kill the offending daemon if the load is higher, than 8. Let's see if it helps ...
RE: server error, address not available - Like Ra - 21 Jan 2011
Currently it looks very fast.
RE: server error, address not available - Joyl27 - 21 Jan 2011
For the whole yesterday I got a "account suspended" message from this address. I thought at least a warning was said about the earlier discussion. But now I guess it wasn't a complaint but something technical really?
RE: server error, address not available - Like Ra - 21 Jan 2011
Yeah, it was the overload I mentioned in the blog and here. You got the message yesterday because the old IP was cached, the site was up on a new IP a day before.
Anyway, the script works. Still not sure what the actual problem was/is. Probably a hogged resource.
RE: server error, address not available - Like Ra - 21 Jan 2011
The script works (kills processes) quite effectively. I did not have to reboot the server since yesterday.
I do not understand what periodically causes the enormous load, but it's not the network traffic. Probably the shared resources. Most likely disk. During one of those blackouts when the load jumped to 30 the disk was 100% busy. Blocked "write" mysql queries?
RE: server error, address not available - Like Ra - 22 Jan 2011
Connection persistence was set to On in php.ini. Let's see if setting it to Off will help.
RE: server error, address not available - Like Ra - 22 Jan 2011
No, neither of the above helped. But! I hada closer look at httpd.conf and figure out that the settings that the hoster uses by default are more than strange. Changed. Waiting for the results now.
RE: server error, address not available - Like Ra - 22 Jan 2011
The blog is utterly broken. I do not exclude a DoS attack as a possibility, though.
Reinstalling WordPress ATM.
RE: server error, address not available - DeWired - 22 Jan 2011
Hm. Have you looked at mysql Slow Queries log? Also, you can change mysql engine for some tables to MEMORY - it will make them fast, but not persistent across reboots. I think, that it can be done, for example, for forum sessions and shoutbox, or something along that.
And, in my experience, switching from Apache to Nginx with PHP in FastCGI mode can improve speed. But complexity of this setup may vary greatly.
RE: server error, address not available - Like Ra - 22 Jan 2011
It works now... I don't get it ...