Litesped 3.3.24 trial and high load

[Bono]

Here it is, just in case if you need it i will paste you my memory usage:

total used free shared buffers cached
Mem: 4054 3329 724 0 282 2232
-/+ buffers/cache: 815 3238
Swap: 1992 0 1992

Name	 	lsphp5
Address	 	uds://tmp/lshttpd/lsphp5.sock
Max Connections 35
Environment PHP_LSAPI_MAX_REQUESTS=500
PHP_LSAPI_CHILDREN=35
Initial Request Timeout (secs) 60
Retry Timeout (secs) 	0
Persistent Connection	No
Connection Keepalive Timeout	Not Set
Response Buffering	No
Auto Start	Yes
Command		$SERVER_ROOT/fcgi-bin/lsphp5
Back Log	100
Instances	1
Run On Start Up		Not Set
Max Idle Time		Not Set
Priority		Not Set
Memory Soft Limit (bytes)	450M
Memory Hard Limit (bytes)	500M
Process Soft Limit		400
Process Hard Limit		500

[anewday]

Try setting persistent connection to Yes and raise max connections and PHP_LSAPI_CHILDREN to 60 or higher. Also, check the last post on Page 1.

[Bono]

Originally Posted by anewday

Try setting persistent connection to Yes and raise max connections and PHP_LSAPI_CHILDREN to 60 or higher. Also, check the last post on Page 1.

Answer to the last post on the first page is zero, nothing is waiting. And i have applied those two values so now i need look and see if it will help.

It looks like that didn't helped much:

top - 19:33:16 up 88 days, 11:23, 1 user, load average: 68.72, 61.33, 44.86
Tasks: 191 total, 86 running, 105 sleeping, 0 stopped, 0 zombie
Cpu(s): 26.2% us, 17.8% sy, 55.9% ni, 0.0% id, 0.0% wa, 0.0% hi, 0.0% si
Mem: 4151296k total, 3718644k used, 432652k free, 298232k buffers
Swap: 2040212k total, 144k used, 2040068k free, 2445288k cached

PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
15666 mysql 10 -5 531m 371m 3768 S 81.4 9.2 12377:26 mysqld
22551 nobody 19 1 276m 8084 5324 R 12.9 0.2 0:00.28 lsphp5
22549 nobody 19 1 276m 7996 5316 R 11.9 0.2 0:00.14 lsphp5
22550 nobody 19 1 276m 8512 5596 R 11.9 0.2 0:00.13 lsphp5
22546 nobody 19 1 276m 8552 5872 R 9.9 0.2 0:00.13 lsphp5
22547 nobody 19 1 276m 7996 5316 R 9.9 0.2 0:00.13 lsphp5
22265 nobody 17 1 275m 8144 6200 S 7.9 0.2 0:04.09 lsphp5
22548 nobody 19 1 276m 7988 5308 R 7.9 0.2 0:00.11 lsphp5
22271 nobody 19 1 276m 12m 9.8m R 4.0 0.3 0:04.01 lsphp5
22476 nobody 19 1 276m 10m 8000 R 4.0 0.3 0:00.75 lsphp5
22499 nobody 19 1 276m 10m 8332 R 4.0 0.3 0:00.75 lsphp5
22261 nobody 18 1 276m 10m 8092 R 3.0 0.3 0:03.36 lsphp5
22540 nobody 19 1 276m 8000 5324 R 3.0 0.2 0:00.13 lsphp5
20638 nobody 17 1 276m 29m 27m S 2.0 0.7 0:05.54 lsphp5
21895 nobody 17 1 276m 17m 15m S 2.0 0.4 0:02.95 lsphp5
22270 nobody 18 1 276m 11m 8780 R 2.0 0.3 0:02.99 lsphp5
22278 nobody 19 1 276m 8484 5784 R 2.0 0.2 0:03.41 lsphp5
22364 nobody 18 1 276m 8912 6208 R 2.0 0.2 0:01.95 lsphp5
22462 nobody 18 1 276m 8892 6192 R 2.0 0.2 0:00.61 lsphp5
22489 nobody 18 1 276m 8376 5680 R 2.0 0.2 0:00.62 lsphp5
22493 nobody 18 1 276m 8896 6200 R 2.0 0.2 0:00.62 lsphp5
22498 nobody 18 1 276m 10m 8324 R 2.0 0.3 0:00.68 lsphp5
22500 nobody 18 1 276m 8652 5728 R 2.0 0.2 0:00.62 lsphp5
22542 nobody 18 1 276m 7856 5216 R 2.0 0.2 0:00.02 lsphp5
21162 nobody 16 1 276m 24m 21m S 1.0 0.6 0:04.46 lsphp5
22558 nobody 18 1 275m 7368 4996 R 1.0 0.2 0:00.01 lsphp5
22559 nobody 18 1 275m 7180 4860 R 1.0 0.2 0:00.01 lsphp5

[anewday]

I don't know what else you can do, wait for mistwang's reply. How many req/s do you see in real-time stats?

[Bono]

Originally Posted by anewday

I don't know what else you can do, wait for mistwang's reply. How many req/s do you see in real-time stats?

ATM 188 req/s outgoing 632KB/sec.

I'm under big attack so it's not best time to switch, but i don't have any choice apache dies after few minutes.

[anewday]

It's not that much. Did you set these under Security tab?

Outbound Bandwidth (bytes/sec)
Inbound Bandwidth (bytes/sec)

May be worth a try.

[Bono]

Originally Posted by anewday

It's not that much. Did you set these under Security tab?

Outbound Bandwidth (bytes/sec)
Inbound Bandwidth (bytes/sec)

May be worth a try.

Yea I have tried that too, but my main problem is extremely high load and too many mysql threads. I will see over night if load will be lower.

[anewday]

Maybe the bottleneck lies elsewhere, not the webserver. Is your mysql on a separate hdd/server?

[Bono]

Originally Posted by anewday

Maybe the bottleneck lies elsewhere, not the webserver. Is your mysql on a separate hdd/server?

No same, but there is no iowait. It is just that somebody is attacking and lite speed can't help me much. Only good thing is that it doesn't lock like apache.

 r  b   swpd   free   buff  cache   si   so    bi    bo   in    cs us sy id wa
47  0    144 262292 306640 2649820    0    0    29    16    3     0 16  7 76  1
56  0    144 260628 306640 2650080    0    0     3   184 1370  1214 87 13  0  0
60  0    144 256212 306640 2650080    0    0     1   165 1286  1205 84 16  0  0
61  0    144 253716 306640 2650080    0    0     0   204 1217  1042 90 10  0  0
70  0    144 244676 306648 2650592    0    0     0   411 1492  1369 84 16  0  0
73  0    144 241396 306652 2650328    0    0     0   279 1399  1354 89 11  0  0
78  0    144 231540 306656 2650584    0    0     1   188 1477  1351 88 12  0  0
87  0    144 213172 306656 2650584    0    0     0   117 1197  1064 84 16  0  0

[anewday]

What did you set for connection soft, hard and grace period? How many IPs are attacking and how big? I hope you have a firewall installed to block the offenders.

My site got hit with a ddos from 20 different IPs 2 weeks ago and the forum was still running fine with load of 15, though it was slower than normal. Server is a Xeon 3060 with 3GB of memory. Mysql on a separate drive.