Hello guys.
I have one problem with some ruby script I developed. This look a basic
issue to solve, but I did try several things and till now I didn’t find
a solution…
This script is basically to do some http requests to trackers. I’m
getting this following exception some time after I start the script:
/usr/lib/ruby/1.8/timeout.rb:60:in extract_information': execution expired from /home/user/NetBeansProjects/trackers/lib/trackers.rb:113:inrun’
from /usr/lib/ruby/1.8/timeout.rb:62:in timeout' from /home/user/NetBeansProjects/trackers/lib/trackers.rb:111:inrun’
from /home/user/NetBeansProjects/trackers/lib/trackers.rb:103:in each' from /home/user/NetBeansProjects/trackers/lib/trackers.rb:103:inrun’
from /home/user/NetBeansProjects/trackers/lib/trackers.rb:76:in each' from /home/user/NetBeansProjects/trackers/lib/trackers.rb:76:inrun’
from /home/user/NetBeansProjects/trackers/lib/main.rb:11
So, the script starts but after a while (the time varies) I get the
above exception.
The structure of the code is like this:
run()
…
infohash.each{ |hash,info|
…
trackers.each{ |t|
url = …
a, b = extract_information(url) #<----------------- Error line(113)
}
}
end
extract_information(url)
begin
Timeout::timeout(3) do
#http call to url
end
rescue Timeout::Error => e
rescue SystemCallError => e
…
end
end
So, as you can see in extract_information(url) function I handled the
Timeout::Error, so I dont get why is giving the Timeout error. I also
added a timeout in run() function to handle the extract_information(url)
call, like this:
…
begin
Timeout::timeout(60) do
a, b = foo(url) #<------------ Error line
end
rescue Timeout::Error =>e
rescue SystemCallError => e
end
but the result was the same…
Any clues?
Thanks,
Luis
Luis G. wrote in post #976533:
Any clues?
- Write a standalone test program which demonstrates the problem. I
tried the following, but it works fine:
require ‘timeout’
require ‘open-uri’
begin
Timeout::timeout(1) do
open(“http://1.1.1.1/foo”).read
end
rescue Timeout::Error
puts “Rescued”
end
If it works for you too, then keep adjusting it until you find what it
is about your full code which causes the problem.
-
Describe the details of your system. I ran the above under
ruby 1.8.7 (2010-01-10 patchlevel 249) [x86_64-linux]
(Ubuntu 10.04 x86_64)
-
I see your backtrace doesn’t include function ‘extract_information’,
so I suspect that the error is actually being raised from somewhere
other than where you think.
Regards,
Brian.
Hello guys
Just to tell ya that with
rescue Exception =>e
I can handle the exception, the script keeps running and the error
message I got in ‘e’ is, of course, the same I said in the first port.
As I told you, this just happens sometimes. So, I’m gonna try to build
an example when I get the exception, put in a file and post it here, so
you can check.
Thanks a lot,
Luis
On Fri, Jan 21, 2011 at 10:11 PM, Luis G. [email protected] wrote:
rescue Timeout::Error => e
rescue SystemCallError => e
…
end
end
So, as you can see in extract_information(url) function I handled the
Timeout::Error, so I dont get why is giving the Timeout error. I also
maybe it’s another error
try capturing it w a generic,
rescue Exception =>e
best regards -botp
Hey again.
Here is an example to explain you the problem.
In attachment there are 2 files. Put both in the same directory run the
main.rb.
$ruby main.rb
Maybe you need to install some gems… Just check the imports I do in
example.rb
A log file will be created in the same directory. Do a ‘tail -f’ in the
log file so you can check what is going on.
You should get the execution exception - timeout exception:
E, [2011-01-24T12:13:53.045896 #8446] ERROR – : execution expired
(#Class:0xb6dac7ec)
/usr/lib/ruby/1.8/timeout.rb:60:in extract_information' ./example.rb:61:in run’
/usr/lib/ruby/1.8/timeout.rb:62:in timeout' ./example.rb:60:in run’
./example.rb:52:in each' ./example.rb:52:in run’
./example.rb:37:in each' ./example.rb:37:in run’
main.rb:6
for tracker: ‘http://tracker4.finalgear.com/announce’
And if you check the code I have the following exception handling in
extract_information(url, log) function:
rescue Timeout::Error => e
(…)
end
So, if it’s a timeout exception, why the code don’t enter in the
Timeout::Error => e exception handling?
what I’m doing wrong?
On Mon, Jan 24, 2011 at 7:22 PM, Luis G. [email protected] wrote:
Attachments:
http://www.ruby-forum.com/attachment/5783/main.rb
http://www.ruby-forum.com/attachment/5784/example.rb
i tested these, and the program is capturing the Timeout error… note,
i edited some logging info to include file/lineno and retry counts set
to 3. i also moved the rescue timeout block before the rescue
exception…
mine times out because of dns error…
eg,
$ grep ^E log_2011-01-25.txt
E, [2011-01-25T10:35:17.457225 #29426] ERROR – : [ FILE:
/disk2_2/home/botp/example.rb LINE: 129 ] Fail saving the file
http://tracker.torrentbay.to:6969/announce?info_hash=h��Ҭ�%2F��_��N� "d
(Timeout::Error).
E, [2011-01-25T10:35:22.577837 #29426] ERROR – : [ FILE:
/disk2_2/home/botp/example.rb LINE: 138 ] Fail saving the file
http://tracker4.finalgear.com/announce?info_hash=h��Ҭ�%2F��_��N� "d
(General Exception).
E, [2011-01-25T10:35:22.579054 #29426] ERROR – : [ FILE:
/disk2_2/home/botp/example.rb LINE: 138 ] Fail saving the file
http://tracker4.finalgear.com/announce?info_hash=h��Ҭ�%2F��_��N� "d
(General Exception).
E, [2011-01-25T10:35:22.580162 #29426] ERROR – : [ FILE:
/disk2_2/home/botp/example.rb LINE: 138 ] Fail saving the file
http://tracker4.finalgear.com/announce?info_hash=h��Ҭ�%2F��_��N� "d
(General Exception).
E, [2011-01-25T10:35:22.580250 #29426] ERROR – : [ FILE:
/disk2_2/home/botp/example.rb LINE: 143 ] Fail saving the file
http://tracker4.finalgear.com/announce?info_hash=h��Ҭ�%2F��_��N� "d
(General Exception)[(3)retries failed].
E, [2011-01-25T10:35:22.580434 #29426] ERROR – : [ FILE:
/disk2_2/home/botp/example.rb LINE: 144 ] getaddrinfo: Name or
service not known[“/usr/local/lib/ruby/1.9.1/net/http.rb:644:in
`initialize’”, “/usr/local/lib/ruby/1.9.1/net/http.rb:644:in `open’”,
“/usr/local/lib/ruby/1.9.1/net/http.rb:644:in `block in connect’”,
“/usr/local/lib/ruby/1.9.1/timeout.rb:44:in `timeout’”,
“/usr/local/lib/ruby/1.9.1/timeout.rb:87:in `timeout’”,
“/usr/local/lib/ruby/1.9.1/net/http.rb:644:in `connect’”,
“/usr/local/lib/ruby/1.9.1/net/http.rb:637:in `do_start’”,
“/usr/local/lib/ruby/1.9.1/net/http.rb:632:in `start’”,
“/usr/local/lib/ruby/gems/1.9.1/gems/mechanize-1.0.0/lib/mechanize.rb:527:in
`fetch_page’”,
“/usr/local/lib/ruby/gems/1.9.1/gems/mechanize-1.0.0/lib/mechanize.rb:259:in
`get’”, “/disk2_2/home/botp/example.rb:114:in `block in
extract_information’”, “/usr/local/lib/ruby/1.9.1/timeout.rb:57:in
`timeout’”, “/disk2_2/home/botp/example.rb:112:in
`extract_information’”, “/disk2_2/home/botp/example.rb:64:in `block (3
levels) in run’”, “/usr/local/lib/ruby/1.9.1/timeout.rb:57:in
`timeout’”, “/disk2_2/home/botp/example.rb:63:in `block (2 levels) in
run’”, “/disk2_2/home/botp/example.rb:55:in `each’”,
“/disk2_2/home/botp/example.rb:55:in `block in run’”,
“/disk2_2/home/botp/example.rb:40:in `each’”,
“/disk2_2/home/botp/example.rb:40:in `run’”, “main.rb:6:in `'”]
best regards -botp