SABnzbd Forums

Posted: **October 29th, 2014, 3:14 pm**

***Resaon: SABconnect++ is the cause of this problem. Let SABconnect++ connect over HTTP, and your problem is gone. No difficult stuff with system settings needed.***

Been running Sabnzbd for years, but switched to Ubuntu for 1 year ago. Since that I've been having thees web GUI "crashes" when using https to connect.
When i run

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sudo service sabnzbdplus status

it says its up and running.. But the web GUI is not accessible.
I have always just done a restart of the service and every thing is fine. This error occur once in awhile, from every day to once a week. Now i'm sick of it and want to fix it.
Checked the error.log, when the error occur it is a bunch of python lines witch ends with this line:

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FatalSSLAlert: [('SSL routines', 'SSL23_WRITE', 'ssl handshake failure')]

Running Ubuntu 14.04
Sabnzbd Version: 0.7.19RC4, same error in 0.7.16

Web browser: Chrome, IE, Firefox. Error occur with every browser..
You can view sabnzbd.error log here: http://pastebin.com/RszkMSeX
You can view the last important lines in sabnzbd.log here: http://pastebin.com/qL9MEuAz
The crashes usually happens early in the morning or night, I only have Sickbeard or Couchpotato doing API calls to Sab, no browser plugins running in the crash period.
From the sabnzbd.log it looks like the crash happens when there is no load, aka noting is downloading.

Checking status:

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einar@Download:~$ sudo service sabnzbdplus status
 * SABnzbd+ binary newsgrabber: running (pid 1353)

When running openssl:

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einar@Download:~$ openssl s_client -connect 127.0.0.1:9090
connect: Connection refused
connect:errno=111

Any help?

-Thx

Posted: **October 30th, 2014, 6:52 am**

Details pls.

nock wrote:error.log [...] a bunch of python lines

...such as?

What browser?
Load of the system when this error occurs?
Any browser plugins or other 3rd party apps doing api calls to sab?
Does the ssl layer still work or not when you try with something like

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openssl s_client -connect 127.0.0.1:9090

Posted: **October 31st, 2014, 10:26 am**

***Updated first post***

Web browser: Chrome, IE, Firefox. Error occur with every browser..
You can view sabnzbd.error log here: http://pastebin.com/RszkMSeX
You can view the last important lines in sabnzbd.log here: http://pastebin.com/qL9MEuAz
The crashes usually happens early in the morning or night, I only have Sickbeard or Couchpotato doing API calls to Sab, no browser plugins running in the crash period.
From the sabnzbd.log it looks like the crash happens when there is no load, aka noting is downloading.

Checking status:

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einar@Download:~$ sudo service sabnzbdplus status
 * SABnzbd+ binary newsgrabber: running (pid 1353)

When running openssl:

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einar@Download:~$ openssl s_client -connect 127.0.0.1:9090
connect: Connection refused
connect:errno=111

Posted: **October 31st, 2014, 10:53 am**

"Too many open files"? Hoe many open connections to 8080 and 9090 does " netstat -apon" show before the crash?

Posted: **October 31st, 2014, 11:15 am**

Is there a log i can view for that?
Not that familiar with "netstat", when i run

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 netstat -apon

i cant really see whats "open connections"
Is it the columns "Recv-Q" and "Send-Q" i should look at?

Posted: **October 31st, 2014, 11:32 am**

i'm guessing this command is as good as any:

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netstat -an | grep :9090 | wc -l

Right now i have 11 if that maters..

Posted: **October 31st, 2014, 12:42 pm**

That open files limit is global, so that could be triggered by other unrelated apps too. But checking for possible hammering of sab certainly makes sense.

Open files of the sab process:

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ls -la /proc/$(pgrep sabnzbdplus)/fd/

Current limit:

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ulimit -n

If it's just too low, set it to something higher (some examples here)

If the issue persists, could you retry the openssl command with a different hostname or ip? Whatever other hostname or ip actually connects will do; current output suggests that sab may simply not be listening on 127.0.0.1.

Posted: **October 31st, 2014, 1:20 pm**

Did a few changes:

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vi /etc/sysctl.conf
fs.file-max = 100000

and

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/etc/security/limits.conf
*               soft    nofile          65000
*               hard    nofile          65000

/etc/sysctl.conf
net.ipv4.ip_local_port_range = 1024 65000

ulimit -n
//old output 1024
//new output 65000

Also changed the host line in sabnzbd.ini and default to my IP-address instead of "0.0.0.0" , should not have an impact but did it anyway..

You can view the output of

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ls -la /proc/$(pgrep sabnzbdplus)/fd/

here: http://pastebin.com/KdfeTx41
The output does not really tell me much :/

Will update on how it goes

Thanks for all the answers so far

Posted: **November 2nd, 2014, 10:54 am**

crashed agian..
You can view the output of

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ls -la /proc/$(pgrep sabnzbdplus)/fd/

here: http://pastebin.com/ABBimPRk

Posted: **November 2nd, 2014, 2:01 pm**

All those sockets are not good, AFAIK.

See http://wiki.sabnzbd.org/faq#toc33 for the relevant FAQ

You wrote "I only have Sickbeard or Couchpotato doing API calls to Sab, no browser plugins running in the crash period.". If so, Sickbeard or Couchpotato are leaving sessions open. That is an unknown behaviour to me; I only know it with SABconnect++ and HTTPS.

First try, as a woraround: let SB and CP use HTTP, not HTTPS

Posted: **November 2nd, 2014, 3:57 pm**

Was just thinking that my self. Will post updates

Posted: **November 4th, 2014, 12:37 pm**

Going from https to http alone did not work for me. I was think if the real problem is that "half-open" connection did not close, i "just force close " them.
Googled around and found a similar issue, but only in other applications like SQL and so on..

Its only been one day, but no crash in the usually crash period.
This setup seems to fix the error:

Decreasing FIN timeout
Added this line to /etc/sysctl.conf

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net.ipv4.tcp_fin_timeout=20

Default is 60.

And enabled the tcp_tw_recycle option

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cat /proc/sys/net/ipv4/tcp_tw_recycle
0

After this change i can see fare less "time_wait" connection hanging to Sab over time.

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netstat -apon | grep -e :8080 -e :9090

Source: http://www.fromdual.com/huge-amount-of- ... onnections

I have to add that Sickbeard and Couchpotato is communication over http (did not change it back to https).

Will post if fails

Posted: **November 4th, 2014, 12:44 pm**

nock wrote:
I have to add that Sickbeard, Couchpotato and SabConnect is communication over http (did not change it back to https).

SabConnect? But in your original post you said "I only have Sickbeard or Couchpotato doing API calls to Sab, no browser plugins running in the crash period."?

Posted: **November 4th, 2014, 3:07 pm**

That is true, i'll remove it form the post

Posted: **November 4th, 2014, 5:08 pm**

nock wrote:That is true, i'll remove it form the post

Well, add to your OP.
Resaon: SABconnect++ is the cause of this problem. Let SABconnect++ connect over HTTP, and your problem is gone. No difficult stuff with system settings needed.

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