Recommendations for low end Ubuntu box

[lucky1981]

My SABnzbd does not seem to be working (nothing is being downloaded) and it is constantly crashing. I believe it is because of the low memory (I've got really cheap VPS):

SABnzbd 0.7.3, Python Version: 2.7.1+ (r271:86832, Apr 11 2011, 18:13:53) [GCC 4.5.2], Ubuntu 11.04 64bit

Memory: 128.00 MB
Burst / Swap: 256.00 MB
235 MB of 256 MB used / 21 MB free

Sysload: 0.69 | 0.63 | 0.39

Top:
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
3634 debian 15 0 233m 36m 3064 S 98.6 14.3 12:37.36 sabnzbdplus
1536 debian 16 0 38480 2476 1460 S 0.7 0.9 0:04.40 encfs
1 root 15 0 23552 1692 1360 S 0.0 0.6 0:00.16 init
1316 root 25 0 14768 1136 944 S 0.0 0.4 0:00.00 xinetd
1317 root 15 0 18896 1056 828 S 0.0 0.4 0:00.00 cron
1339 syslog 15 0 12544 792 620 S 0.0 0.3 0:00.01 syslogd
1401 bind 25 0 119m 11m 2124 S 0.0 4.5 0:00.01 named
1499 root 18 0 49432 2692 2132 S 0.0 1.0 0:00.00 sshd
1592 root 15 0 71420 2752 1284 S 0.0 1.0 0:00.14 apache2
1593 www-data 15 0 71660 2816 1172 S 0.0 1.1 0:00.00 apache2
1640 root 15 0 68268 2136 584 S 0.0 0.8 0:00.05 sendmail-mta
3660 www-data 15 0 71420 2232 736 S 0.0 0.9 0:00.00 apache2
3685 root 16 0 70804 3332 2588 S 0.0 1.3 0:00.02 sshd
3697 debian 15 0 70804 1772 1024 R 0.0 0.7 0:00.00 sshd
3698 debian 15 0 17980 2008 1524 S 0.0 0.8 0:00.00 bash
3708 debian 15 0 19188 1316 1064 R 0.0 0.5 0:00.00 top

Log:
Failed to start sabnzbdplus-0.7.3 Traceback (most recent call last): File "/usr/bin/sabnzbdplus", line 1527, in main sabnzbd.start() File "/usr/share/sabnzbdplus/sabnzbd/decorators.py", line 31, in newFunction return f(*args, **kw) File "/usr/share/sabnzbdplus/sabnzbd/__init__.py", line 346, in start URLGrabber.do.start() File "/usr/lib/python2.7/threading.py", line 495, in start _start_new_thread(self.__bootstrap, ()) error: can't start new thread

Are there any recommendations for low end boxes? I would really love to get this working. I have default settings, 9 different Usenet servers, fresh Ubuntu installation. Thanks a lot for any answer!

[sander]

Hi,

I've SABnzbd running without problems on a 256MB RAM VPS.
However, I must say that, because I only have got 20GB disk space, I only download posts with maximum size 6 - 9GB. So no 40GB BluRay images.

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sander@toverdoos:~$ free -m
             total       used       free     shared    buffers     cached
Mem:           237        177         60          0          7         83
-/+ buffers/cache:         86        150
Swap:          511         72        439

sander@toverdoos:~$ df -h
Filesystem            Size  Used Avail Use% Mounted on
/dev/xvda1             20G  6.6G   13G  36% /
udev                   99M  4.0K   99M   1% /dev
tmpfs                  48M  324K   48M   1% /run
none                  5.0M     0  5.0M   0% /run/lock
none                  119M     0  119M   0% /run/shm
sander@toverdoos:~$

[lucky1981]

Not sure what could be wrong then. Is this normal?:

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debian@user:~$ free -m
             total       used       free     shared    buffers     cached
Mem:           256        240         15          0          0          0
-/+ buffers/cache:        240         15
Swap:            0          0          0

Code: Select all

top - 07:23:43 up 55 min,  1 user,  load average: 0.61, 0.54, 0.28
Tasks:  16 total,   2 running,  14 sleeping,   0 stopped,   0 zombie
Cpu(s): 85.2%us, 14.8%sy,  0.0%ni,  0.0%id,  0.0%wa,  0.0%hi,  0.0%si,  0.0%st
Mem:    262144k total,   246380k used,    15764k free,        0k buffers
Swap:        0k total,        0k used,        0k free,        0k cached

  PID USER      PR  NI  VIRT  RES  SHR S %CPU %MEM    TIME+  COMMAND
 1767 debian    15   0  230m  34m 3076 S 99.0 13.5   6:00.70 sabnzbdplus
    1 root      15   0 23584 1704 1360 S  0.0  0.7   0:00.19 init
 1304 root      17   0 14768 1136  944 S  0.0  0.4   0:00.00 xinetd
 1313 root      15   0 18896 1056  828 S  0.0  0.4   0:00.00 cron
 1439 root      18   0 49432 2692 2132 S  0.0  1.0   0:00.00 sshd
 1440 syslog    15   0 12544  800  620 S  0.0  0.3   0:00.00 syslogd
 1470 bind      18   0  119m  11m 2124 S  0.0  4.6   0:00.01 named
 1547 root      18   0 71420 2752 1284 S  0.0  1.0   0:00.04 apache2
 1548 www-data  15   0 71660 2808 1168 S  0.0  1.1   0:00.00 apache2
 1583 root      18   0 68892 2140  584 S  0.0  0.8   0:00.01 sendmail-mta
 1586 www-data  18   0 71420 2032  548 S  0.0  0.8   0:00.00 apache2
 1628 root      16   0 70804 3328 2588 S  0.0  1.3   0:00.03 sshd
 1640 debian    15   0 70804 1768 1024 R  0.0  0.7   0:00.04 sshd
 1641 debian    15   0 17968 2028 1544 S  0.0  0.8   0:00.01 bash
 1748 debian    15   0 38320 2344 1452 S  0.0  0.9   0:00.86 encfs
 1819 debian    15   0 19188 1320 1064 R  0.0  0.5   0:00.00 top

[sander]

You have no swap space at all, whereas my system has 512MB swap (see the last line of "free -m"). No swap means a hard limit, causing the problems you see.

And you have only 15MB RAM space left (last number of the line "-/+ buffers/cache:") ... so that leaves little room.

[lucky1981]

I cannot create swap space, because OpenVZ environment does not allow me to do that. I had to drop SABnzbd and go for hellanzb.
You can close the thread now.

[shypike]

Hellanzb uses less memory?